Originally Posted by mikadoofvn View Post
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C:\Android>adb devices
List of devices attached
HT34WW904065    offline
HT34WW904065    recovery

C:\Android>adb -s HT34WW904065 push Guru_Reset_M7_2.24.980.2.zip /sdcard/
error: more than one device
You can't ''adb -s'' because the same device is listed twice under two different conditions (recovery and offline). You should only have the one with recovery. Can be cause by many things:
  • First reboot computer (to reset it) and reboot phone to twrp

when in twrp
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adb kill-server
adb start-server
adb devices
is the offline device still listed?
  • Try this:
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adb version
you should use version 1.0.31, if not download and install the newest android sdk here

then check adb devices again.
  • try different usb ports (2.0) and try a different usb cable (with data capability, not only a usb power cable)

if adb still dont work, you should consider buying a usb otg cable and copy the guru.zip to a usb stick and use the otg cable to access it via twrp.
If I've helped you, please hit the ''tanks'' button
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Useful links for the HTC One:
nkk71's SuperGUIDE to returning 100% back to stock
Flashing requirements chart by nkk71
HTC1Guru.com by crushalot