Buyer Beware: Joyance Tech mid-air hardware failure led to total destruction — Joyance denied warranty because the crash fire destroyed the SD card logs.
**TL;DR:** Our $8k+ Joyance JTC30 commercial drone suffered an unprovoked mid-air power loss, flipped, crashed, and caught fire. Joyance asked us to send back the flight controller board (V9-FMU). After receiving it, they claimed the internal SD card was short-circuited by the fire, making logs unreadable. Because the logs were destroyed *by the crash/fire*, they refused warranty coverage and offered a "50% discount" on buying a brand-new unit instead. Background & Incident Details Our company in Kazakhstan purchased a new **Joyance JTC30** drone and other equipment (\~14 Million KZT / \~$30,000 USD) for commercial operations. All official invoices and import documents are on hand. During a routine flight under standard operational conditions (clear sky, open field, zero wind, qualified pilot):
1. The drone experienced a sudden, severe mid-air hardware failure (sudden loss of power on one side / roll axis flip). 2. It dropped from the sky and crashed into the field. 3. Upon impact, a severe battery/wiring fire broke out in the central section, completely burning the flight controller housing and body. 4. Fortunately, no personnel were injured. 5. The Telemetry Defect Before the Crash 6. Two weeks prior to the crash, we noticed that the standard telemetry flight logs stopped saving on the ground station remote controller (**SIYI MK15**). We reported this to Joyance: there was a clear pre-existing hardware/firmware glitch in the telemetry recording pipeline before the fatal flight even happened. 7. Joyance’s Response & "Log Catch-22" 8. We contacted Joyance support (Shandong Joyance Intelligent Technology Co., Ltd.). They instructed us to open the carbon fiber frame, extract the burnt **V9-FMU Flight Controller**, and ship it back to their factory in Shandong, China for low-level diagnostic analysis. 9. We documented everything prior to shipping: high-res photos, chip laser serial numbers, physical condition, and security markings. 10. A week after receiving the board, Joyance replied: 11. *"Our technicians tried their best to extract log data from the SD card, but it has short-circuited, making it impossible to read logs. Our offer is to sell you a new one at half price."* #technology