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[Q] Nexus 4 all sensors stopped working?

OP quietperson

1st April 2014, 10:18 AM   |  #1  
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The device is a Nexus 4, unlocked, unrooted. It is currently running stock jellybean 4.3
when purchased it was on jelly bean. sensors worked fine.

i have been using the device for 4 months
sometime after the kitkat OTA update (before any unlocking/flashing/rooting was done to the phone) the autorotate started malfunctioning.
till date i have flashed three kitkat aosp roms before returning to jellybean stock after the final rom crashed and i lost all data.
on the second kitkat rom autorotate stopped working completely.
after that irrespective of the rom it did not work. when i used the cpu-z app i saw that ALL sensors were unresponsive.

physical damage to the device so far:
dropped thrice from a height of about 2.5 ft. with protective case on.
dropped once in water (submerged) for two seconds. (the phone still functioned normally)

other problems: device has shown consistent issues with flashing -
phone freezes/switches off /
failure to boot successfully after flashing a new rom/ trying to restore backup/startup from fastboot mode/startup from recovery/
app crashes

is the sensor issue a software bug or an indicator of serious hardware damage?
and why is the device behaving so unstable after flashing
1st April 2014, 10:29 AM   |  #2  
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Question
Quote:
Originally Posted by quietperson

The device is a Nexus 4, unlocked, unrooted. It is currently running stock jellybean 4.3
when purchased it was on jelly bean. sensors worked fine.

i have been using the device for 4 months
sometime after the kitkat OTA update (before any unlocking/flashing/rooting was done to the phone) the autorotate started malfunctioning.
till date i have flashed three kitkat aosp roms before returning to jellybean stock after the final rom crashed and i lost all data.
on the second kitkat rom autorotate stopped working completely.
after that irrespective of the rom it did not work. when i used the cpu-z app i saw that ALL sensors were unresponsive.

physical damage to the device so far:
dropped thrice from a height of about 2.5 ft. with protective case on.
dropped once in water (submerged) for two seconds. (the phone still functioned normally)

other problems: device has shown consistent issues with flashing -
phone freezes/switches off /
failure to boot successfully after flashing a new rom/ trying to restore backup/startup from fastboot mode/startup from recovery/
app crashes

is the sensor issue a software bug or an indicator of serious hardware damage?
and why is the device behaving so unstable after flashing

Water is acting deadly to phones in most cases. Have you cleaned the phone after if fell in the water? You can try cleaning possible debris with pure alcohol. This would happen on your OWN RESPONSE of course!

Have you tried to FULL WIPE + flash stock firmware?
1st April 2014, 10:40 AM   |  #3  
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Quote:
Originally Posted by LS.xD

Water is acting deadly to phones in most cases. Have you cleaned the phone after if fell in the water? You can try cleaning possible debris with pure alcohol. This would happen on your OWN RESPONSE of course!

Have you tried to FULL WIPE + flash stock firmware?



tried full wipe+flash stock multiple times. the failure to boot problem is persistent
the phone red lights a lot when this happens
also after it fell into the water, i shook the phone repeatedly till not a single water droplet fell out of it. i wiped as much water off as i could.
switched off for about two hours. then it worked normally so i stopped worrying.
if it was water damage why did it take a month to show up? i was told if the device doesn't immediately fail, its fine.
1st April 2014, 10:50 AM   |  #4  
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Info 2
Quote:
Originally Posted by quietperson

tried full wipe+flash stock multiple times. the failure to boot problem is persistent
the phone red lights a lot when this happens
also after it fell into the water, i shook the phone repeatedly till not a single water droplet fell out of it. i wiped as much water off as i could.
switched off for about two hours. then it worked normally so i stopped worrying.
if it was water damage why did it take a month to show up? i was told if the device doesn't immediately fail, its fine.


I'm not a phone tachnician so you may be get some more questions. I service hearing aid technology and due to this i know that calcium oxide and other remainings on the boards often cause malfunctures :P
6th April 2014, 11:30 AM   |  #5  
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i went to the LG service centre and..

to anyone who has a "can't get past boot animation" problem, try taking your sim card out.
mine had a lot of moisture residue on it. the technician used an eraser to remove the residue, and then the sim was put back in, and after one or two tries, now, i dont have any bootloop issue.
so its probably working.
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