I got a strange problem: my phone does not accept adb or fastboot commands sent from my pc anymore. The screen says FASTBOOT when connected in fastboot mode to the pc, but the USB appears only after I move the cursor up or down (push the volume button up or down).
The command line on windows states "Waiting for device...". The driver seems broken. In Device Manager (Windows) it says "Other devices -- Android Phone" with an exclamatin mark. A driver update fails.
I am running CM alpha 12 on a HTC One S (S4). The phone was not connected to my pc while on stock. The Android SDK is installed on the pc and up to date.
The phone is running fine besides the lack of usb access in any way. Charging works fine.
Any suggestions appreciated.