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LUCKY DIP · BrainFPV Radix 2 HD 30x30 FC (BMI270): Failed HD Regulator, Won’t Boot, Sold As-Is
Lucky Dip price today
$50.00Was $189.95 new
GST included
1 In stock
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(before 1pm Sydney time) for same day despatch.
Pickup available
1/80 Somersby Falls Road, Somersby NSW
Ready to collect Monday from 9:30am
- Open: Mon to Fri, 7:30am to 5pm
- Online orders: at the front counter by 9:30am, or about 2 hours after you order. We'll email you when it's ready.
- Walk-ins: come by any time we're open and buy over the counter.
What was reported
After a firmware update the FC won’t boot (no LEDs/USB) though 5V passes through; draws 0.3–5W on USB. Conformal coating burnt off the HD-system (9V) regulator inductor. BrainFPV confirmed a hardware defect.
Our take
Treat as dead: failed HD regulator likely dragging the board down. A repairer could replace the regulator/inductor; otherwise parts. Conformal-coated. A Crossfire Nano RX Pro may still be soldered on.
Repair hint
Replace the failed HD (9V) regulator/inductor, then reflash.
Product details
SKU:
10871252
Shipping Weight:
50g
W/H:
V-03-B-04
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Are you looking to buy LUCKY DIP · BrainFPV Radix 2 HD 30x30 FC (BMI270): Failed HD Regulator, Won’t Boot, Sold As-Is in Australia?
LUCKY DIP: faulty customer return, sold as-is. No returns, no warranty.
This listing is for one returned BrainFPV Radix 2 HD 30x30 flight controller (BMI270, 2022 version). It came back to us in May 2024 after BrainFPV themselves confirmed a hardware defect, and it's been on the shelf since.
How the price works: it starts at $50 and drops every night at midnight for 30 days, down to a $15 floor. The floor price only lasts 24 hours. If nobody grabs it, the price goes back up to $50 and the 30-day countdown starts again. Wait too long and you could miss it, or have to wait another month.
About the photos: these are photos of a new one, for reference only. They don’t show this unit or its condition. Want photos of the actual item? Email us at hello@phaserfpv.com.au and we’ll send some.
What was reported
- The board worked and was set up. After a firmware update (INAV) it was unplugged, and the next time it was plugged in, the FC wouldn't boot: no status LEDs and no USB connection. A factory reset made no difference.
- 5V still passed through (the receiver and GPS powered up), but the board drew an unusual 0.3–5W on USB alone.
- The board was conformal-coated. Under UV light, the coating had burnt off one part only: the inductor of the voltage regulator for the HD (9V) system.
- BrainFPV support reviewed photos, agreed it's a hardware fault, and approved a replacement.
Our take
- A failed HD-system regulator that's likely dragging down the board, so treat the FC as dead.
- Could score: an electronics repairer could replace the failed regulator/inductor. The rest of the board may well be fine.
- Worst case: parts or a learning board. It's conformal-coated, so expect a coated finish.
- A TBS Crossfire Nano RX Pro may still be soldered to it. We'll confirm on the label and photos.
Specs (when working)
- BrainFPV Radix 2 HD · 30x30 · BMI270 gyro (2022)
- Built-in HD (9V) supply for DJI/HD systems · Betaflight/INAV (BrainFPV builds)
Chips on the board (for parts hunters)
- MCU: STMicro STM32H750 (480MHz H7)
- IMU / gyro: Bosch BMI270
- Barometer: Infineon DPS310
- 16MB onboard flash + microSD blackbox slot
Chips are as listed by the manufacturer for this model, not checked on this exact unit. They make it a handy donor for repairs.
Sold as-is, please read
- Lucky Dip items are untested or known-faulty returns sold at a special price.
- No returns, refunds, exchanges or warranty claims, including DOA. You're buying it exactly as described.
- Board as returned. Photos are of a new one, for reference only.