If the script is interrupted , the device may have no valid bootloader. Since Fastboot lives in the bootloader, you can no longer communicate with the device. This is a hard brick requiring JTAG or motherboard replacement.
But what exactly is fastboot flash-all.bat ? How does it work, and why is it simultaneously revered and feared? fastboot flash-all bat
Let's break down each step:
The fastboot flash-all.bat batch file (or flash-all.sh on Linux/macOS) is a convenience script included in factory firmware packages for Android devices — typically Google Pixel phones, Nexus devices, and some other officially supported hardware. If the script is interrupted , the device