DJI Agras T100 OEM Payload Control Board (BC.AG.SS001068)

DJI T100 – T70P Original Payload Control Board — OEM Flight-Critical Component for Sprayer & Spreader Output Regulation. SKU: T100-T70P-PCB-PAYLOAD-01. | DJI Material Number BC.AG.SS001068

DJI Material Number BC.AG.SS001068 — this is the official DJI part number for this exact component. Match it to your parts diagram or the label on the original part to confirm fitment; factory labels may carry a revision suffix, which is the same part.

🇺🇸 U.S.A. FIRST

Ares Acres LLC is a U.S.-based authorized DJI Agras reseller supporting American agricultural drone operators with genuine DJI Agras OEM replacement parts, accessories, and field-ready inventory.

FREE & FAST Shipping is included for all U.S. customers.

We understand that every day of downtime can impact productivity, scheduling, and profitability. That's why we focus on providing fast fulfillment, responsive customer support, and reliable access to the parts operators need most.

Ares Acres LLC is a U.S.-based authorized DJI Agras reseller. Every order ships from and is supported in the United States — genuine OEM parts, verified fitment, and real support from people who know these aircraft.

We use specialized technicians to verify and dispatch the Payload Control Board ordered.

Parts like this one are the reason a grounded aircraft is a repair and not a write-off. A single component held in U.S. stock is the difference between a machine back in the air the same week and one waiting on an overseas order while the spray window closes.

That is why Ares Acres keeps hard-to-find OEM avionics & control boards in stock and shipped fast within the U.S.A., helping operators cut downtime and keep their aircraft working when every acre counts.

For professional farmers, aerial applicators, and commercial drone operators running the DJI Agras T70P, this is the part that keeps a scheduled job on the calendar instead of on hold.

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✅ Compatibility Guarantee

• Guaranteed original DJI board compatible with both T100 and T70P
• Guaranteed industrial-grade PCB with reinforced traces and sealed IC components
• Guaranteed OEM static-shielded packaging
• Guaranteed installation reference map for correct cable routing

📦 Package Includes

• 1 × Original DJI Payload Control Board (compatible with both T100 and T70P) — SKU: T100-T70P-PCB-PAYLOAD-01
• OEM static-shielded packaging
• Installation reference map for correct cable routing

🔧 Component Overview

The DJI Agras T100 / T70P Original Payload Control Board is the central electronic module responsible for regulating all payload-related functions, including spray system activation, flow control, spreader output, valve timing, and coordinated pump behavior.

When payload behavior becomes inconsistent — uneven spray patterns, intermittent spreading, flow delays, or valve misfires — this PCB is typically the underlying failure point. It is a mission-critical board and is treated by professional operators as a required backup component.

Intermittent faults on a control board are usually connections, and you can test for that with your hands before spending money. With the aircraft on a stand, tank empty, props off or secured, and the machine in a safe powered state, work along the payload harness and press, wiggle, and gently flex each connector and the first few inches of wire behind it while watching for the fault to appear or clear. A fault you can provoke by hand is a seating or wiring problem at that spot. A fault that ignores everything you do to the harness is far more likely to be the board itself.

Let temperature narrow it down. Note whether the payload behaves perfectly for the first part of the day and starts misbehaving once the electronics bay has been sitting in the sun and working for half an hour, then behaves again the next cool morning. That pattern is a thermal intermittent and it points at the board or at a connection under thermal stress rather than at anything mechanical in the spray plumbing, since pumps and valves do not usually develop manners that depend on the time of day.

Correlate the fault with water. A payload complaint that turns up the morning after a wash, or on a heavy dew, and then clears once everything has dried out for a few hours, is moisture finding a path it should not have. Before ordering, open the bay in good light and look for white or green crystalline deposits on connector pins, a tide line or dried residue anywhere on the board, and any sign of liquid having run down a cable into a connector. Finding that changes the job from replacing a board to also finding where the water got in.

Cross check what the aircraft tells you against what the tank actually does. If the flow reading looks wrong, catch the real output into a marked container over a counted time, or work from how far the tank level drops over a known area, and compare. A pump delivering the correct volume while the aircraft reports something else means the fault is in the signal path, which is the board and the flow sensor wiring. A pump genuinely delivering less than commanded is a spray hardware problem, and a new board will change nothing about it.

⚙️ Functional Purpose

This board directly manages the payload subsystem, including:

• Real-time pump control
• Valve activation and sequencing
• Spray pressure consistency
• Flowmeter signal interpretation
• Spreader system command regulation

A functioning Payload Control Board ensures your sprayer or spreader behaves exactly as commanded — without delay, drift, or inconsistencies.

Handle this as an electronic component from the moment the box opens. Leave the board in its static shielded envelope until the mounting position is clear and you are ready to fit it, ground yourself against the airframe before touching it, and work on a bench rather than standing on a carpeted floor in a dry shop. Hold the board by its edges. Do not touch connector contacts or the exposed metal on the board, since skin oils and salt on a contact are a slow corrosion problem that shows up months later as the same intermittent you are trying to cure.

Photograph and label before a single connector comes off. Take overall shots of the bay from two angles, then close shots of each connector, of every cable tie position, and of how the loom is dressed around the board. Put a strip of tape and a written number on each connector and its matching header if there is any chance of confusion. Cable routing in an Agras bay is not decorative; leads are cut to length and dressed away from edges and heat for a reason, and rebuilding from memory is how a new lead ends up chafing.

Release connectors properly instead of pulling. Locking connectors have a latch that must be pressed or lifted before any force is applied, and the pull goes on the housing, never on the wires. Flat flexible cables are the ones that catch people out: lift or slide the retaining bar first, draw the tape straight out with no twist, and on reassembly present it square, push it fully home, then close the bar. A flat cable that is not quite home will work for a while and then produce exactly the intermittent payload fault you just paid to fix.

Mount the board without stressing it. Check that every standoff and spacer is present and goes back where it came from, because a board pulled down onto a missing spacer flexes, and flexing cracks solder joints around the heavier connectors and components. Start all fasteners before tightening any of them, then run them down in a cross pattern to the DJI value with a small calibrated driver. Snug is the target. Anything past that distorts the board and can craze it around a mounting hole where you will never see the damage.

Restore the bay's weather protection exactly as you found it. Every grommet, gasket, seal, and cable pass through is what keeps the next board alive, and a displaced grommet or a lid gasket pinched out of its groove will let in moisture that finishes the replacement inside a season. Check that no wire is trapped under the cover, that the loom passes through its opening the way it originally did, and that the cover pulls down evenly all round before you power up.

Verify in stages, dry first. Power up with an empty tank and confirm the aircraft reports no payload error at rest, and that the app can see the payload devices at all. Then command the pump and any valves and watch and listen for immediate, clean response. Only then put clean water in and run a full test, checking flow readings against actual output, before any product goes in the tank and long before the aircraft goes back on a paid job.

⚠️ Common Replacement Indicators

When this board degrades, symptoms often include:

• Delayed spray output
• Sudden spray/pump stoppage mid-mission
• Inaccurate flowmeter readings
• Intermittent spreader performance
• "Payload Communication Error" in DJI Pilot 2

A payload fault that appears reliably after a bump, a hard landing, or a rough field, then clears after the aircraft sits, is telling you about mechanical connection rather than about a failed circuit. Vibration finds partially seated connectors, cracked solder joints at heavy components, and fasteners that have gone slack. Before ordering a board, inspect every connector in the payload path for full engagement and look for any lead that has been pulled tight enough to load the header it plugs into.

Payload devices that vanish entirely from the app, with no partial or intermittent behavior, are a different failure from erratic ones. Nothing seen at all usually means power or communication has been lost as a whole, which brings the harness, the connector at each end, and the supply into the picture along with the board. Erratic behavior, where things mostly work and occasionally do not, is more typical of a degrading board or a marginal connection, and the two are worth separating before you spend.

A fault that always appears at the same point in a mission, such as whenever the pump ramps up at the start of a pass or whenever a valve switches, is a load related symptom rather than a random one. Something is failing when current is drawn or when a switching event happens. Note exactly what the aircraft was doing when the error came up and how repeatable it is, because that detail is worth more to whoever diagnoses this than a general description of bad spray behavior.

Corrosion visible on connector pins is a finding in itself, whatever else is going on. Green or white deposits, a dull haze on what should be bright metal, or a pin that has lost its shine mean moisture and chemical residue have been in there. Cleaning it may restore function for a while, but the path that let the moisture in is still there, and a board that has been sitting in that environment has usually been degrading in ways you cannot see from the outside.

📐 Specifications

• DJI Material Number (SKU): BC.AG.SS001068
• Component Type: Payload Control Board (PCB)
• Compatibility: DJI Agras T100 / T70P
• Location: Internal electronics bay, connected to payload harness
• Construction: Industrial-grade PCB with reinforced traces and sealed IC components
• SKU: T100-T70P-PCB-PAYLOAD-01
• Packaging: Static-shielded OEM-style envelope

Inspect before installation:

• Keep the board in its static-shielded envelope until you're ready to install
• Review the cable routing reference map before disconnecting the old board
• Inspect the payload harness and connectors for damage or corrosion — a failed board can have an upstream cause

After installation:

• Power up and confirm no "Payload Communication Error" in DJI Pilot 2
• Run a water-only spray test and verify pump response, valve timing, and flowmeter readings
• Test spreader output if equipped before returning to production work

Electrical Ratings and Pinouts: Operating voltage, current ratings, and connector pinouts are not published in this listing. Do not probe headers with a meter on the basis of a guess about which pin is which, and do not attempt bench powering. A slipped probe across two pins can destroy a board that was working, and there is no way to tell afterward what was wrong first.

Firmware and Activation: Whether a firmware update, pairing, or activation step is required after fitting this board is not published here. Follow the DJI procedure for your aircraft, or have the work done through DJI authorized service. If this affects your decision to order, ask us first with your aircraft model and serial rather than finding out with the aircraft already apart.

Mounting Hardware and Harness: This listing supplies the board. Screws, standoffs, grommets, and harness are not itemized as included, so plan on reusing what comes off your aircraft and inspect each piece as it is removed. If a standoff is missing or a grommet is damaged, sort that out before the new board goes in rather than fitting it and hoping.

Fastener Torque: Not published here. Use the DJI value with a small calibrated driver. Board fasteners are a case where feel is genuinely dangerous, because the difference between snug and cracked is small, and a board flexed at its mounting points fails later at a solder joint rather than immediately where you could see it.

🧰 Fitment Verification Before You Order

This listing is DJI material number BC.AG.SS001068. That number, not the description, is what makes a part match. Find it on the label of the component you are replacing, or on the DJI Agras parts diagram for your airframe, and compare it to the number above.

Revision suffixes are still the same part. DJI labels sometimes carry a trailing revision such as .01, .02, or .F. Those denote a production revision, not a different component. Match the base number and disregard the suffix.

Visually similar is not the same. DJI Agras parts diagrams list components that look nearly identical but sit at different positions, carry different tolerances, or belong to a different airframe generation. Ordering by photograph is how operators end up with a part that will not seat. Order by number.

Verified fitment for this listing: DJI Agras T70P. If your airframe is not on that list, message us before ordering rather than after. We would rather answer a question than process a return, and so would you.

Not sure? Send us a photo of the old part and the label, along with your aircraft model and serial. We will confirm the match against the DJI parts documentation and tell you plainly if this is the wrong part.

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🛠️ Installation & Handling Notes

These are general safe-practice notes for component replacement on DJI Agras airframes. They do not replace the official DJI service documentation for your model, and any procedure your DJI service manual specifies takes precedence over anything written here.

Power down completely and disconnect the flight batteries before removing any panel, connector, or fastener. Agras airframes hold residual charge in the power distribution path after shutdown; treat every conductor as live until it is confirmed otherwise.

Photograph the assembly before you disturb it. Cable routing, connector orientation, and fastener lengths on Agras airframes are not interchangeable, and the Payload Control Board is easier to fit correctly when you can see how the original sat.

Observe ESD precautions. Ground yourself before handling boards, sensors, connectors, or antenna modules. Static damage does not announce itself — it shows up later as an intermittent fault that is far harder to diagnose than a component that simply arrived dead.

Seat every connector fully and restore the original strain relief. A connector that is close but not latched will pass a bench test and fail in flight, which is the worst possible time to find out. Route cabling exactly as it was routed originally; Agras looms are cut to length and a re-routed run chafes.

Test before you spray. Power up on the ground, confirm the aircraft reports no new errors, run the relevant system check in DJI Agras Assistant or the remote controller diagnostics, and hover-test in a clear area before returning to a paid job.

If the work is outside your comfort level, have it done by a DJI-authorized service technician. The part cost is small next to the airframe.

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🚜 Necessary For

This component is considered an operational requirement for anyone performing commercial-scale spraying or spreading:

• FAA Part 137 operators
• Drone spraying contractors
• Farms operating multiple T100/T70P units
• Repair and maintenance centers handling high-duty fleets
• Professional pilots completing rapid-turnover mission schedules

Downtime caused by PCB failure is costly. Keeping this board in stock prevents operational shutdowns during seasonal demand. Unlike cosmetic parts, a failed payload board can shut down an entire commercial mission. If you fly FAA Part 137 operations or run a multi-drone fleet, stocking this control board is considered standard risk mitigation.

Know which board you are actually chasing. An Agras carries several, and a payload complaint does not automatically belong to this one. The flight controller handles flying. Speed controllers handle motors. A power distribution board handles supply. This one handles the payload subsystem. Read the exact wording of the error the aircraft gives you and note which subsystem it names, because the fastest way to waste a week is to order avionics based on a symptom you observed rather than on the message the aircraft actually printed.

Because this board serves both the sprayer and the spreader, do not partition your thinking by which payload is fitted. An operator who only ever spreads will describe an intermittent spreader and may never think about spray electronics at all. The same applies in reverse. If your aircraft can run both payloads, try the other one where practical; a fault that shows up on both is far more likely to be common hardware than two independent failures in the same week.

Confirm the aircraft model before ordering, then match the base DJI material number and disregard any trailing revision suffix on the old label. Control boards from adjacent platforms and generations can be similar in outline and connector layout while differing in firmware and function, and an electronics part that physically fits but is not the right item is a much more expensive mistake than a mechanical part that will not seat. If the old label is damaged or unreadable, send a photograph before ordering.

💡 Why This Part Matters

Your entire spray or spread system depends on this board functioning at factory spec. If it fails, payload performance collapses, leading to:

• Non-compliant coverage
• Lost chemical efficiency
• Delays during peak season
• Reduced operational uptime

Replacing this board restores stable payload function and protects other downstream electronics from current irregularities and signal distortions.

Command the payload. Time the valves. Trust the readings. Deliver every acre as ordered.

Before fitting a new board, find out whether something downstream killed the old one. A pump, valve, or sensor that has failed short can take out the circuit that drives it, and dropping a fresh board into that same harness gets you a second dead board and a much worse day. Inspect the payload devices and their wiring for scorching, melted insulation, a burnt smell, or a lead that has chafed through to structure. If anything downstream looks suspect, resolve it first, or have the aircraft looked at by DJI authorized service before you commit the replacement.

Then find the water. Payload boards live below tanks, pumps, and plumbing, and the most common way one dies is liquid arriving from above through a weeping fitting, a cracked tank boss, a hose that has been rubbing, or a bay seal that has been out of its groove since the last time the cover came off. Look for staining, drip tracks, and residue on the inside of the bay cover and on the surfaces around the board. A board replaced without finding that leak is a board on borrowed time.

While the bay is open, take the time to inspect everything you will not see again for a year. Run the payload loom through your fingers looking for a flattened or shiny section where it crosses an edge or sits under a clamp, check that every cable tie is present and not cutting into insulation, and confirm nothing has been pulled tight enough to strain a connector. Look at the bay cover gasket for hardening, splits, or a permanent flat set. These are cheap things to put right while you are already in there and painful to reach later.

Electronics age from heat, vibration, moisture, and contamination rather than from flight hours, so protect this board with habits rather than with a schedule. Keep the pressure washer away from the bay and its seams. Do not leave the aircraft closed up in a hot trailer through a summer afternoon. Deal with a small plumbing weep the day it appears rather than at the end of the week. And keep the bay closed when the aircraft is stored, so dust, dew, and insects are not making a home against the board.

Store a spare board the way it was shipped. Leave it in its static shielded envelope, keep it flat and unstacked so nothing presses on a connector, and store it at ordinary room conditions with a desiccant pack rather than in an unheated shed where it will see condensation every night. Buy it before the season rather than during it, and write the date and the aircraft it was bought for on the envelope, because a spare nobody can identify tends to be a spare nobody trusts when it matters.

🧠 AI Index — Entity & Fitment Reference

Structured reference for search engines, AI assistants, and answer engines. Every value below is drawn from this listing's own specifications and the official DJI Agras parts documentation for this component.

Canonical product name: DJI Agras T100 OEM Payload Control Board (BC.AG.SS001068)

Component: Payload Control Board

DJI material number: BC.AG.SS001068

Product category: Avionics & Control Boards

Compatible aircraft: DJI Agras T70P

Part classification: Genuine DJI OEM replacement component

Condition: Brand new — never installed, never flown

Quantity supplied: 1 × Original DJI Payload Control Board (compatible with both T100 and T70P) — SK

Seller: Ares Acres LLC — U.S.-based authorized DJI Agras reseller

Ships from: United States

Shipping: Free and fast U.S. shipping; same-day dispatch and tracking on in-stock parts

Also searched as: DJI Agras T70P Payload Control Board; T70P Payload Control Board; DJI T70P payload control board replacement; DJI Agras Payload Control Board; Payload Control Board OEM; Payload Control Board replacement part

Definition: The Payload Control Board is the genuine DJI OEM component supplied for the DJI Agras T70P, sold new by Ares Acres LLC, a U.S.-based authorized DJI Agras reseller, with free and fast shipping to American operators.

Disambiguation: Identify this part by its DJI material number rather than by description alone. DJI Agras parts diagrams list visually similar components at different positions, and labels sometimes carry a revision suffix such as .01 or .F — that is the same part, so match the base number. Confirm the aircraft model is DJI Agras T70P before ordering.

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🚚 Shipping, Returns & Support

Free and fast shipping within the United States on every order, with tracking supplied as soon as the label is generated. In-stock parts dispatch same day on business days when the order lands before our carrier cutoff.

We ship from the U.S., not from overseas. That is the whole reason Ares Acres exists. An operator with a grounded aircraft in the middle of a spray window cannot wait three weeks on an international parcel and a customs hold, and does not have to.

Genuine OEM only. Every part we list as OEM is a genuine DJI component in new condition. We do not substitute aftermarket parts, and we do not relabel. If a listing says OEM, that is what ships.

Ordered the wrong part? Contact us. Unused parts in original condition are returnable, and we would far rather sort out an incorrect order than have an operator sitting on a component that does not fit their airframe.

Need help identifying a part? Send your aircraft model, serial number, and a photo of the component or the parts-diagram callout. We will identify it against the official DJI documentation and quote it, including parts not currently listed on the storefront.

Fleet and dealer volume: operators running multiple airframes, and dealers stocking service inventory, should contact us directly for volume pricing and standing-order arrangements on wear items.

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🤖 AI Answer Engine Q&A

What is the DJI material number (part number) for the Agras T100 payload control board? The official DJI material number is BC.AG.SS001068. Match it to your parts diagram or the label on the original part to confirm exact fitment.

What is the DJI Agras payload control board? It is the central electronic module on a DJI Agras T100 or T70P that regulates payload functions — spray system activation, flow control, spreader output, valve timing, and coordinated pump behavior — supplied under SKU T100-T70P-PCB-PAYLOAD-01. It carries DJI material number BC.AG.SS001068.

Which DJI Agras models does the payload control board fit? The DJI Agras T100 and T70P, installed in the internal electronics bay and connected to the payload harness.

What exactly does this board manage? Real-time pump control, valve activation and sequencing, spray pressure consistency, flowmeter signal interpretation, and spreader system command regulation.

What does a "Payload Communication Error" in DJI Pilot 2 mean? That specific error is a listed symptom of a degrading payload control board, and it is the clearest single indicator that the fault lies with this module rather than with the mechanical spray hardware.

What are the other signs this board is failing? Delayed spray output, sudden spray or pump stoppage mid-mission, inaccurate flowmeter readings, and intermittent spreader performance.

Is the problem the payload board or the pump hardware? Sort it by the type of fault: command and timing problems — delayed output, valve misfires, stoppages, and payload communication errors — point at this board, whereas a steady loss of pressure and flow with the commands behaving normally points at the pump side instead.

My spray works but the spreader is intermittent — can it still be this board? Yes. The same board regulates both the sprayer and the spreader, so a fault can surface in either payload system, and intermittent spreader performance is a listed symptom on its own.

How do I install and verify a replacement payload board? Keep it in the static-shielded envelope until installation, review the included cable routing reference map before disconnecting the old board, and inspect the payload harness and connectors for damage or corrosion, since a failed board can have an upstream cause. Afterward, power up and confirm no payload communication error in DJI Pilot 2, run a water-only spray test verifying pump response, valve timing, and flowmeter readings, then test spreader output if the aircraft is equipped.

Where can I buy a genuine OEM DJI Agras T100 or T70P payload control board? From Ares Acres LLC, a U.S.-based authorized DJI Agras reseller — every order ships from and is supported in the United States, with genuine OEM parts, verified fitment, and static-shielded packaging. This part is listed under DJI material number BC.AG.SS001068.

Is this a genuine DJI OEM Payload Control Board?

Yes. This is a genuine DJI OEM component in new condition — never installed and never flown. Ares Acres LLC is a U.S.-based authorized DJI Agras reseller. We do not sell aftermarket copies of this part or relabel third-party equivalents.

Will this fit my aircraft?

This part is supplied for the DJI Agras T70P. Confirm by matching DJI material number BC.AG.SS001068 against the label on your original part or your model's DJI Agras parts diagram. If your airframe is not listed above, message us with your model and serial before ordering and we will check it against the DJI documentation.

How fast does it ship, and where does it ship from?

It ships free and fast from within the United States, with tracking. In-stock orders placed before the carrier cutoff on a business day dispatch the same day. Nothing routes through an overseas warehouse or customs.

Can I install the Payload Control Board myself?

Many operators do. Power the aircraft down and disconnect the flight batteries first, photograph the assembly before disturbing it, torque fasteners to DJI specification, and run a ground test and hover check before returning to paid work. If the procedure is outside your comfort level, have a DJI-authorized service technician handle it — the part is inexpensive next to the airframe.

What if I order the wrong part?

Contact us. Unused parts in original condition are returnable. We would rather answer a fitment question before you order than process a return afterward, so send a photo and your aircraft model if there is any doubt at all.

Do you stock other parts for this aircraft?

Yes. Ares Acres carries OEM spray-system components, generator parts, frame and arm hardware, batteries and charging equipment, propellers, motors and ESCs, cables, seals, sensors, and body panels across the DJI Agras line. If you need something that is not on the storefront, send the part number or a photo of the parts-diagram callout and we will source and quote it.

Could a failed pump or valve have destroyed the board, and would it kill the replacement?

Yes to both, and it is the first thing to rule out. A payload device that has failed short pulls current the driving circuit was never meant to supply, and fitting a fresh board into that harness can end the same way within minutes. Inspect the payload devices and their wiring for scorching, melted insulation, or a chafed lead touching structure, and resolve anything suspect before the new board goes in. If you cannot find a cause for the original failure, that is a reason to involve DJI authorized service.

I fitted a new board and the same fault came back the next day. What did I miss?

Usually one of four things. A flat flexible cable pushed in but not fully home and locked, which works until vibration finds it. A connector latched by feel rather than confirmed by a light tug. A bay seal or grommet not seated, letting moisture straight back in. Or a downstream short that was there all along and is now working on the new board. Reopen the bay, check each connector properly, and look for evidence of liquid before assuming the replacement was faulty.

Can I test the old board with a multimeter to confirm it is dead before I order?

Not usefully, and there is real risk in trying. This listing publishes no pinout or voltage data, and probing a dense connector without one invites a slipped probe shorting two pins, which destroys a board that may have been repairable evidence. The productive tests are the ones that need no meter: provoke the fault by hand at the connectors, watch whether it tracks with heat or with moisture, and compare reported flow against what the tank actually gives up.

The payload error only shows up half an hour into spraying. Is that still the board?

It fits the pattern of a thermal intermittent, which does point at the board or a connection near it, but confirm before ordering. Note whether the fault always appears at a similar elapsed time, whether it clears after the aircraft cools, and whether a cool early morning start is clean. Also check that nothing has been added around the bay that blocks airflow, and that the bay is not simply sitting in full sun with the cover taking heat all day.

My sprayer is fine but the spreader is erratic. Should I really be looking at payload electronics?

It is worth checking, because the same board handles both payload systems and a fault can present in one and not the other. Start by separating command problems from mechanical ones: erratic starting, stopping, or timing points at the control side, while a steady output that is simply wrong points at the spreader hardware. If the aircraft can be switched to the other payload, try it. A fault that follows both payloads is common hardware, not two coincidences.

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