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[Q] Hardware failure?

OP K'Tag

18th March 2014, 06:20 PM   |  #1  
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Last night all the apps on my 16gb Nexus 4 crashed inexplicably at the same time. I tried rebooting and the phone just looped the loading animation endlessly. I tried going into recovery mode and doing a factory reset but get the following errors:

E:failed to mount /cache (Invalid argument)
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log

(It repeats these several times before giving up)

This morning I downloaded the Nexus Root Toolkit to try and reflash the stock software, but with no luck. The bootloader is still locked (I never had a need to root this phone... so I thought...) so it won't allow me to flash updates. When I try to unlock using NRT, I just end up in another boot loop.

I've also tried to sideload the stock image through the phone's recovery but get the same errors. If I try the "wipe cache partition" option I get the same errors (but change /log to /last_install) with 1 additional:

E:Failed closing /dev/block/platform/msm_sdcc.1/by-name/misc
(I/0 error)

So my question is, how hosed am I? What have I not done that I should try? Is there a way to flash or sideload just an unlocked bootloader? Any ideas about how to fix this unmountable E:? Or has my phone just exploded?

Thanks in advance for your help!!

Kevin
2nd April 2014, 09:43 PM   |  #2  
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Just a quick bump of this before I admit complete and utter failure....

Both Google and LG believe it's a ROM failure, but since I hadn't rooted the phone or even installed any apps not from the Play Store, I don't buy it. I've tried pushing and pulling files from adb, tried flashing files through fastboot, used the Nexus recovery tool, the command prompt and even tried the lgnpst. Nothing changes the situation. It just can't seem to read or write to E: This has to be a hardware failure, right? A short circuit or something?

Has anyone sent a Nexus 4 back to LG for repair? I have a feeling their repair, especially if it's more than just reinstalling the software, is going to cost more than my insurance deductible, so unless something miraculous changes today, I'm going to replace it that way... :/

Any ideas are appreciated.

Thanks!

Kevin
2nd April 2014, 09:51 PM   |  #3  
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Looks like messed up partitions or mmc failure - had a similar problem 2 years ago on SGP 5.0, couldn't mount system (partitions f0oked up)
2nd April 2014, 10:14 PM   |  #4  
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Quote:
Originally Posted by K'Tag

Just a quick bump of this before I admit complete and utter failure....

Both Google and LG believe it's a ROM failure, but since I hadn't rooted the phone or even installed any apps not from the Play Store, I don't buy it. I've tried pushing and pulling files from adb, tried flashing files through fastboot, used the Nexus recovery tool, the command prompt and even tried the lgnpst. Nothing changes the situation. It just can't seem to read or write to E: This has to be a hardware failure, right? A short circuit or something?

Has anyone sent a Nexus 4 back to LG for repair? I have a feeling their repair, especially if it's more than just reinstalling the software, is going to cost more than my insurance deductible, so unless something miraculous changes today, I'm going to replace it that way... :/

Any ideas are appreciated.

Thanks!

Kevin

this sure looks like mmc is fried. the repair will change whole motherboard. if you have some kind of fear. write down your serial number that appears on fastboot mode. then send to repair. when it get backs look the new serial. you will see its changed. the imei will also be changed as far i know
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