[Q] USB Not Working in Bootloader
I have an old Nexus S that runs painfully slow. No amount of factory resetting helps so I want to perform a full wipe with a clean factory image install and unlock the bootloader while I am at it. I am using the Nexus Root Toolkit and the drivers have installed and are working correctly. However, once my phone reboots into the bootloader USB does not seem to be detected and the operation fails. Starting with my phone on with USB debugging enabled, I have no problem using the ADB quick tools in the Nexus Toolkit to list devices and reboot via ADB. Performing a full driver test runs fine until the phone reboots to the bootloader, then I get a fastboot error. Also, in the bootloader beneath the boot options near the bottom of the screen is this text:
USB Control Init
USB Control Init end
Another stranger thing is that the volume buttons also don't work in the bootloader, but they work fine when the phone is on. It is weird that these two hardware functions don't work in the bootloader but work fine in the OS. Could this be a software problem in the bootloader itself?