: Resolving "hang on logo," constant restarting, or clearing forgotten passwords/codes. Infinity-Box Flashing Procedure Summary Preparation : Power off the phone with the battery inside. Connection : Hold the Volume Down button while connecting to the PC to trigger detection.
Flashing SPD firmware is riskier than Qualcomm or MediaTek if not done correctly. Prepare the following: v75 flash file spd
Disconnect the USB, remove and reinsert the battery, and power on the device. The first boot may take 5–10 minutes. Common Troubleshooting : Resolving "hang on logo," constant restarting, or