[Q] Nexus4 dead - plugged, not charging - Nexus 4 Q&A, Help & Troubleshooting

When I plug charger LED blinks for a second and turns off, when I charged battery manually by putting the cables to V+ and V- for 5minutes the system booted, battery was at 20% and shows device is plugged in, but it's not charging it actually. While device stayed on cable for all night it was still 20% in the morning but as soon I disconnected it and battery went to 18% I plugged it back, after 2 hours it was still at 18%. system recognizes charger but not charging. I've also changed cable, adapter, replaced USB port and battery, but that didn't work. Now I have empty battery and it won't turn on for charging even in bootloader mode, as soon I turn recovery mode on it, device turns off and won't turn on again.
What's wrong? Is it motherboard problem and will repair cost more than new device?

Ok, seems the issue resolved when I disassebly phone completely and reassembled it, weird and a signal for phone replacement I guess.

Related

Odd Charging/Discharge behavior

Leaving the Phone in USB Tether mode, it may not charge.
Today my Focus was down to about 20% charge remaining. I hooked it to the computer and it indicated it was charging. I came back a few hours later expecting to see it close to fully charged. It was showing the charge indication, but it was also showing it was almost completely discharged. (The battery icon flips back and forth from the charge icon the the current battery charge icon) I pulled the usb cable and it immediately told me the battery was critically low.
I put the USB cable back in, hooked it to the AC adapter this time and it showed it was again in charge mode.
I opened the diagnostic for the battery, *#2*#, and it showed 4% charge.
I removed the battery and it was not hot. I reinserted the battery and in the past few hours I am showing 67% charge now. I also had left the USB tethering option in there from yesterday, so I set it back to Zune and the phone rebooted for that. The battery is not very warm.
I don't know what to think. It looks like leaving it in USB Tether after i tried that yesterday might have caused it to refuse to take a charge in spite of showing the charge indicator. If anyone else has put theirs in USB Tether and not switched it back to Zune afterwards, I would like to know if it will really charge being left in that USB Tether mode.
Not odd at all. In the past, Samsung WM phones are known to disable charging when in USB modem mode.

[Q] battery dosen't charge

My battery dosen't charge anymore.
About one month ago, sometimes when my battery was in 1% I only can charge with cell off and usb pluged in pc. In the wall charger the white led dosen't turn on.
Now, my battery won't charge, I plug in pc and the white led turns on. Sometimes phone turn on and boot normally, but after 2 minutes it turn off.
When is on, battery indicator shows is charging and 4% battery,
I´m using tezet' CM10.
edit: in the last 3 hours i plug in wall charge. screen shows just battery and a interrogation point inside and the white led is off.
Any sugestions?
thanks
Yuriê
yuriebc said:
My battery dosen't charge anymore.
About one month ago, sometimes when my battery was in 1% I only can charge with cell off and usb pluged in pc. In the wall charger the white led dosen't turn on.
Now, my battery won't charge, I plug in pc and the white led turns on. Sometimes phone turn on and boot normally, but after 2 minutes it turn off.
When is on, battery indicator shows is charging and 4% battery,
I´m using tezet' CM10.
edit: in the last 3 hours i plug in wall charge. screen shows just battery and a interrogation point inside and the white led is off.
Any sugestions?
thanks
Yuriê
Click to expand...
Click to collapse
Did you try with another battery?
It seems the phone cannot handle it because the circuitry inside the battery may be broken.
Good luck.
i dont know anyone with the same phone.
after changing charging to pc and to wall many times my phone began to charging.
now is working perfectly...
Did you use the same cable for usb and wall connector charging? (cable broken?) Did you try another wall charger? (charging device broken?)
->--- said:
Did you use the same cable for usb and wall connector charging? (cable broken?) Did you try another wall charger? (charging device broken?)
Click to expand...
Click to collapse
the problem only occur when my phone is 1% charge. After the last problem i can charge my phone without problems.
So you just can't let it get to 1%?
sanxbr said:
So you just can't let it get to 1%?
Click to expand...
Click to collapse
yes.
yuriebc said:
My battery dosen't charge anymore.
About one month ago, sometimes when my battery was in 1% I only can charge with cell off and usb pluged in pc. In the wall charger the white led dosen't turn on.
Now, my battery won't charge, I plug in pc and the white led turns on. Sometimes phone turn on and boot normally, but after 2 minutes it turn off.
When is on, battery indicator shows is charging and 4% battery,
I´m using tezet' CM10.
edit: in the last 3 hours i plug in wall charge. screen shows just battery and a interrogation point inside and the white led is off.
Any sugestions?
thanks
Yuriê
Click to expand...
Click to collapse
If the battery lower than 15%, it will warn, if lower than 5% it will auto close device. If the battery lower 5% then charge may cannot open device to charge.

Lg G2 Does not turn on

Hi,
I have a LG G2 D805 that doesn't turn on. What happened is that the digitizer broke, so i couln't turn off the phone. So i decided to open it to disconnect the battery and wait for my digitizer replacement to arrive.
When i disconnected the battery the phone turned off, so i reconnected the battery to test it out. The phone didn't turn on.
I connected the phone to the charger and the led flashed red. Again discconected the battery and i reconnected it and the phone turned on (this was with the charger connected and after many tries).
So i disconnected it again to test it out because this is really weird, and after many tries the phone turned on but with a message that the battery was not connected. Tried again, and the phone does not turn on at all, not even with the charger connected.
I think that the motherboard it is blocked in some way, I checked the the battery (it is fully charged) with a multimeter and it gives 4.3v of output.
I checked if the motherboard was getting any voltage, and it is getting 3.7v.
I hope you guys could help me, Thanks!

S4 i9506 charging issues, won't charge more than 20%

Hey guys, got a problem with my S4 i9506, yesterday all of the sudden its telling me that the usb cable is pluged in (message when u plug the usb), but I just surf the web without any cable attached! afterwards it started to get a little hot on the back, and later the evening, when the battery was drained, I pluged the charger and it would NOT charge! it did see the plug, the battery icon changed, but the battery were still going down! I tried another S4 battery, same thing - so its the phone. I googled the issue, cleaned the USB connections carefully, tried hard reset, tried charging from PC (the PC detects the phone, I can transfere files), so the USB port seems to be fine. the battery died comepletly, I tried do charge when its turned of, did't help, its just vibrating every second, without any display activity. I put it overnight charging, woke up this morning and it did acctually charge, but VERY slowly, and won't get higher than 20% charge.
PLZ HELP

a5 i had same issue on another a5!!

a5 2016 when powered off and i plug cable to charge phone shows battery thunder symbol but not charging, maybe the cable bad? but sometimes work fine when powered off and i put charge the usb cable in wall charger. now another phone powered off, and i put the charger, same ISSUE not see battery 0% but battery boot and not charged. when i reinsert the cable started charged. this happen with two phones same ( a5 2016) sometimes battery not charging it stopped at 70 or random number. i leave it in night so when i wake up i see 93% charging. and not fully because i dont reinsert cable in to the phone. i dont know maybe the another cable dont do that how cable did this issue, not charging when powered off, when reinsert it start charged. and i forgot mention the cable which i use in the phone which not start charged sometimes when i got 0% it start charged when i reinsert so this cable dont recognized to the pc. it shows error when i plugged two phones or another phone not a5 so the cable bad? how the magic trasnfer issue to another a5 when phone without defect issues!. strange. so what you opinion? cable bad?
i forgot mention even when phone charging power off the cable loose connection not on power was phone. i wake up and see powered off not nothing happened not light screen to see fully charged . its off. when i reinsert cable was battery 97% not 100% so the cable lost connection random even when powered off charging. so 100% cable bad? because its stopped sometimes charged at random percent and sometimes charged fully

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