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17 Posts

03-20-2009

United States of America

30 Signins

357 Page Views

  • Posts: 17
  • Registered: ‎03-20-2009
  • Location: United States of America
  • Views: 357
  • Message 1 of 3

Boot loop - maybe an OTA upgrade went wrong?

2018-12-22, 3:27 AM

I awoke to my X4 screen flashing.  It was fine when I went to sleep.  I get the blue initial splash screen for several seconds and a black screen for a few seconds, then it repeats.

 

I was able to get to the fastboot screen (power - vol-down) and on to Recovery Mode.  I did a wipe data factory reset and the problem is unchanged.  

 

I left it on the fastboot menu while plugged in overnight.  I try turning it off and it just boot loops again.

 

Is there a way to restore this or should I send it in for warranty repair?

 

I'd appreciate any help you have. 

 

Thanks!

 

 

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57 Posts

10-09-2016

India

177 Signins

2342 Page Views

  • Posts: 57
  • Registered: ‎10-09-2016
  • Location: India
  • Views: 2342
  • Message 2 of 3

Re: Boot loop - maybe an OTA upgrade went wrong?

2018-12-23, 1:02 AM

hey bro. yes that's an upgrade failure. you can manually just downgrade or else I'd better suggestion submit your device to service center.

 

best regards

Sagar Kuvar

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17 Posts

03-20-2009

United States of America

30 Signins

357 Page Views

  • Posts: 17
  • Registered: ‎03-20-2009
  • Location: United States of America
  • Views: 357
  • Message 3 of 3

Re: Boot loop - maybe an OTA upgrade went wrong?

2018-12-23, 17:10 PM

So recovery mode wasn't working.  I started an RMA and had nothing to lose.  I started trying fastboot and adb commands to load signed images to no avail.  My drivers were messed up so I tried loading from SD card and that didn't work either.

 

I resorted to reading up on fastboot commands and trying some that appeared to have potential.  I lucked upon this command that did the trick:

 

E:\adb>fastboot devices
ZY224XXXXX fastboot

E:\adb>fastboot -w
Erase successful, but not automatically formatting.
File system type raw not supported.
Erase successful, but not automatically formatting.
File system type raw not supported.
Erasing 'userdata' OKAY [ 9.230s]
Erasing 'metadata' (bootloader) Permission denied
FAILED (remote: '')
Finished. Total time: 9.317s

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