Writing Flash Programmer... Fail Unlock Tool -

Insufficient power or data noise over the USB cable interrupts the high-speed data transfer required to initialize the programmer.

Dropping the phone can break the microscopic solder balls underneath the processor or flash storage chip, preventing data from flowing between them. writing flash programmer... fail unlock tool

Close the tool, unplug the USB, force shutdown the device (hold power + volume down), and re-enter EDL mode. Insufficient power or data noise over the USB

Navigate to the or Security Bits register view. Locate the Read Out Protection (RDP) byte. Navigate to the or Security Bits register view

Charge the device for at least 30 minutes, even if the screen remains completely black.

Is this a or an existing product you are trying to repurpose?

JLinkExe -device STM32F103C8 -if SWD -speed 4000 -autoconnect 1 > unlock Kinetis # Even for STM32, this triggers a mass erase > erase > exit