Google Nexus 7 Tablet (2012) ADB is working fine but fastboot doesn't find my deivce

[dcharles25]

Hey! I'm trying to revert from cyanogenmod to stock android and I'm running into what seems to be a driver issue.

I will got through the steps I've done to better explain.

1. Followed Nexus Root Tool Kit driver instructions.
2. Do driver test.
3. ADB passes
4. Fastboot fails

Every time I go into my bootloader my computer says as follows

USB Device Unknown(A request for the USB device descriptor failed.)

Some other information about my deviecs:

Desktop:
Winodws 8 64x

Nexus 7
Cyanogenmod Nightlies

Screenshots:

 

[Paul627g]

Hello,

When it comes to Nexus devices I firmly believe in having PDANet installed on your computer and allowing it to do the drivers on the device. Always seems to give me a flawless connection with my Nexus 7 (2012) model and my previous Nexus smartphones.

 

[911jason]

Found your thread while searching my problem, which oddly is the exact opposite of yours. My issue is with an HTC One X+ which ADB cannot find, but Fastboot works perfectly. Oddly enough, ADB finds it with no problem at all in a Ubuntu Vbox on the same computer. No idea what's going on.

Did you ever figure it out?

 

[ajua]

To the OP. I wrote a guide to manually install KitKat on Nexus 7 and added the Google USB drivers I needed to modify in order to user ABD/Fastboot on Windows 8.1 x64. You can try to use those drivers and see if they work with your Nexus 7 model.

If you open the android_winusb.inf file you will find a label called ;custom that I wrote to find my added lines (two lines in my case). See if that matches the Device ID in Windows Device Manager. If it doesn't you can try to add the one you are seeing when you right click your tablet and select Properties - Details.

Here's the link to the guide and the driver files. I hope this helps.