Hard Reset to Factory Settings without USB access I've got an Asus ZenPad 300C that is crashing constantly. Things I have tried:


Clearing cache. I am unable to access Settings to clear the cache but was able to run a clean-up app, which I think did some of that. No effect.
Factory Reset. If I use Power+Volume Up to access recovery mode I can see the options - FASTBOOT MODE and POWER OFF, but the power button doesn't work so there's no way to actually select FASTBOOT MODE. I tried connecting via USB to run ADB and do it that way but USB Debug mode is not enabled and I cannot get into Settings on the phone to allow it because Settings crashes.
Battery. I have removed the back and temporarily disconnected the battery but that made no difference. 


Is there any other way to perform a hard reset or troubleshoot and fix this issue or is it done for?
I completely forgot you don't need debugging and all thing ....... On windows/mac/Linux
1) Just open internet browser and go to click herewww.google.com/android/find
2) Enter your email id and password(which one used in asus zenpad z300c)
3) If you have multiple device with same id then selected Asus zenpad z300c carefully.
4) If only one device is register then skip step 3. And In left hand side select option ERASE DEVICE .
5) Might be Google will confirm password again. So enter it again.
6) Done.
7) Your device is factory reset.

note **Your device Asus Zenpad z300c need to connected to internet to perform this operation prefer wifi connection **
Good Luck.....

Please update it is successful or not.