I need to repair my Android phone (it is Jiayu G4 with Os 4.0.2) since display is not working. Yet touches are being handled. Could anyone with Android devtools installed at their PC instruct me which gestures should I do after

adb backup -apk -shared -all

command? It expects me to unlock the device and allow backup, but I cannot see which button to press.

Good answer is: 1. Press button at 3/4 of height and 2/3 of width of the screen; 2. Swipe selector located at 1/10 of height in the left... ...or something.

Please help.


When you invoke the adb backup command, this is the screen popping up on your device:

adb backup

The button you would need to hit is "Back up my data". So after invoking the command, wait for 3..5 seconds to be sure the screen is "loaded", then hit the area on the lower-right where the button should be. The backup process then should start immediately. Even if you see nothing happen, give it another 30s or so, then check (from a different terminal/command shell); you should see your backup file growing then.

  • Thanks a lot! My data are being saving right now. I forgot that one picture is better than a hundred words. One more little question: is it safe to restore these data to later version of the system? 4.2 or 4.4. Looks like i need to flash my device with later firmware in order to get my new replacement screen working. The screen is of a new revision of device.
    – Jurlie
    Feb 22 '14 at 21:14
  • Depends. If you included system apps, I'd be careful (adb restore allows no selection, all-or-nothing only). Otherwise: Save I'd say. After all, that's what Helium Backup does to sync apps/data between devices.
    – Izzy
    Feb 22 '14 at 21:28

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