The JMMAL10 Test Point Update introduces the following technical modifications:
| Error | Likely Cause | Solution | |-------|--------------|----------| | "Device not found" | Drivers not installed correctly | Reinstall Huawei USB drivers or try a different USB port (USB 2.0 preferred). | | "Handshake failed" | Short released too early or incorrect test point | Keep the short stable for the first 5 seconds after connecting USB. | | "Flash write error" | Wrong firmware version | Download the exact Board Firmware for JMMAL10 (check build number and region). | | Device still dead after flash | Battery completely depleted or hardware damage | Leave the phone on a charger for 2 hours, then retry. | jmmal10 test point upd
You must remove the back cover to expose the motherboard. The test point typically involves shorting a specific small gold contact to the ground (metal shielding) while connecting the USB cable to a PC. Common Use Cases The JMMAL10 Test Point Update introduces the following