Watch this step-by-step guide on how to fix common software issues like dead boot or blinking keypad lights using a flash tool:
Connect the phone to your PC using a high-quality USB cable. You may need to hold a "boot key" (often the center button or '*' key) while connecting to trigger the download mode. nokia ta-1235 flash file infinity
A complete TA-1235 flash file should minimally include: Watch this step-by-step guide on how to fix