Boot Loop/charging problem - Moto G4 Questions & Answers

I have a stock G4, which I replaced the screen on a few months ago.
Every few days, it randomly powers off and then wont turn back on. When I connect a charger, I get a bootloop with the splash screen appearing/reboot cycling.
Fastboot works (although I only tried this with a charger, not a PC attached).
Eventually the phone will seem to reboot correctly (after charging for a while, rebooting into fastboot)
One thing that does seem to work is 5 minutes in the freezer... After a restart this shows that the last crash occurred with 92% battery. - but then it keeps powering off with no warning, and fastboot indicates low battery...
I'm guessing either hardware/power management issues, or battery problems - the phone is 2-3 years old...
Edit : Further messing about suggests the battery is completely hosed...

Related

Stuck in bootloop, installed in some new parts

Hi,
I have a problem with my Find 5: I am stuck in a bootloop. The Oppo logo appears and after only a few seconds disappears, the phone vibrates and then the logo appears again. And this goes on and on.
I can get into recovery and fastboot but the real problem ist that my Find 5 will turn of again after maybe one minute into recovery. I tried it with CWM and TWRP. When I want to turn on the phone or get into recovery without being charged, nothing happens.
Before that I haven’t used the Find 5 because the USB-Port was broken and it would not charge. Even if the phone had a connection, its battery percentage would not increase at all. Then I ordered a new battery and a new USB-Port. I installed the new parts and suddenly the phone started to work again. I flashed a new nightly of CM 12 and installed some apps. The next day (it was charging over night) I unplugged the phone at 30%.
When I looked at the battery chart, I could see that the battery percentage did not decrease and also not increase while plugged into the charger. Then after some normal use, the battery percentage jumped from 14% directly to 0% and the phone turned off a few seconds later. When I charged it, it was stuck in a bootloop again. First it took about 30 seconds between the reboots and after the Oppo logo disappeared I could see that it i charging but after some minutes the reboots got faster (every 8 or 9 seconds).
So I am having the same problems with the new parts again but I don’t know why because it worked for some time…
It seems that the battery is broken again but how can it be? It was a brand new battery and it worked for one nearly full charge. Are there some common mistakes when replacing the battery that I could have made to cause my problem? I don’t know what to do and I want to try everything that is possible before getting a new phone.
Edit: Now I know where the problem is (or where it is not) but I have no idea what to do against it. The problem lies somewhere in the mainboard. Because when the charger is plugged in the phone will start to reboot again and again so the cable between USB-port and mainboard should be ok. But the battery is not charging. The phone worked with the new battery for a while because it was already charged when I built it in. And now since the battery is empty again I am experiencing the same problem as before again.
So does anyone have an idea? Where is the exact problem and can I fix it without spending much money on it?
Thanks for your help
Sam

Nexus 10 dot not charge anymore + infinite REBOOT when plugged

Hi eveybody,
Today, a problem I have been experiencing for months (years ?) became critical : I cannot charge my Nexus 10 (lollipop) anylonger. To make it as simple as possible, here are the symptoms :
1) When my tablet is ON, if I plug the micro-charger (or any other one, same), nothing happens, no charge ( and no PC recognize if connected to PC).
2) When the tablet is OFF, if I plug the charger, the tablet viber briefly (this is normal) - which means the tablet realize I plugged the charger - but the screen stay black, and after about 10 seconds, I can see a (very very) brief flash on the screen, then the tablet viber again (same like the first one !), and it restarts over an over again in a infinite loop. I never see anything on the screen, just infinite loop viber every 10 secondes. If I unplug the charger, then the next reboot the tablet will boot normally... Of course, when plugged and looping, the only way I have to power it off is a hardreboot (or unplug, wait it boots, and the poweroff.)
I have NO IDEA on what to do... In one hand it seems an hardware problem, on the other hand (due to the past experience, when it worked in a wierd way, see below) it doesn't. At this time, I still have 60% of battery, so things can be done (dunno, change to factory version of android ? but without PC...) ; when it will reach 0%, this is the end I guess. :crying:
Any help is welcome... thanks !
Here are the previous "version" of this problem, I had been experiencing for more than one year : exactly the same thing happened but only when the tablet was hot (after I used it). When it happened, I just waited for a whole night, and on the morning, I plugged, and it charged normally. Don't ask me why, this is completely mysterious for me, but that what happened : hot, didn't work, cold, worked...

Droid Turbo 2 Strange Boot Loop

Alright,
I replaced my battery today (the battery I replaced drained very quickly) and that is when all of my problems started.
Droid Turbo 2 | Verizon | Completely Stock | Latest Software
Most people have the issue that their phone is stuck in a boot loop and it just goes to the booting screen and dies - mine is different. My phone was stuck in that phase, however it stopped after a factory reset. It boots all the way to the home screen. Then within five minutes the power-off overlay appears (without me selecting it) and immediately turns off. Then it reboots. My phone is at 4% and is stuck there as I charge it. As soon as the phone has enough power to turn on it does,
I have already wiped my data cache and performed a factory reset.
I have two other working batteries, but they have no effect on this.
I am trying to troubleshoot whether this a hardware or software problem - does anyone have any ideas?
Update #1: So last night I swapped out one of the batteries and it was at 21% when the phone turned on the first time. However, it too started doing the interval shutdown within 5min of being powered on. When I woke up in the morning the phone was drained and would not power on whatsoever - even while charging. So it charges until it has enough to turn itself on and then gets stuck in a boot loop until it dies.
Update #2: Somehow it started holding a charge. After wiping it started booting to the boot loader screen - so I have this to thank. Now it turns on fine, however some dead pixels have started showing up. Also, the current problem is that it randomly turns off - any fixes?

Droid Turbo 2 Sudden Shutdown + Boot loop

TLDR: are there any diagnostics I can do to verify that my battery needs to be replaced?
A few days ago, I turned on my phone to check the time and a half-second later it suddenly and instantly shutdown. I was not able to restart it at all. When I got home and plugged it in, it began a continuous boot loop, with only the motorola splash screen displaying, then nothing for a few seconds, then back to the splash screen over and over.
Fortunately, I was able to get to the"AP Fastboot Flash Mode" menu. I couldn't do anything from there on the phone itself though; every option just went into the boot loop again. I was able to get a fastboot connection with my PC and so reflashed the phone successfully.
After reflashing, it went into the boot loop again. I began looking for more solutions online and wasn't paying attention, but sometime in the next 5-10 minutes it made it to the login screen! I re-set up my phone and all seemed to be working fine!
Until the next day. I tapped an app and instead of opening, the phone immediately shutdown and went dead again. Took it home, plugged in, and it went into the boot loop again.
Anyway, I've read a few threads on here and elsewhere that the culprit may be the battery. I would like to have more than just a hunch before I shell out the money and time to replace the battery -- is there any way I can verify that the battery is indeed the problem? I didn't seem to be having any battery problems before - charging and usage seemed fine. I did drop the phone rather hard a few weeks ago, but didn't seem to effect anything (short term at least).
Also, could using a non-Droid Turbo 2 charger affect battery life? I actually got the phone used and didn't get the official charger with it, so I've been using just a random leftover one for ~6 months.
TIA!
walter77d said:
TLDR: are there any diagnostics I can do to verify that my battery needs to be replaced?
A few days ago, I turned on my phone to check the time and a half-second later it suddenly and instantly shutdown. I was not able to restart it at all. When I got home and plugged it in, it began a continuous boot loop, with only the motorola splash screen displaying, then nothing for a few seconds, then back to the splash screen over and over.
Fortunately, I was able to get to the"AP Fastboot Flash Mode" menu. I couldn't do anything from there on the phone itself though; every option just went into the boot loop again. I was able to get a fastboot connection with my PC and so reflashed the phone successfully.
After reflashing, it went into the boot loop again. I began looking for more solutions online and wasn't paying attention, but sometime in the next 5-10 minutes it made it to the login screen! I re-set up my phone and all seemed to be working fine!
Until the next day. I tapped an app and instead of opening, the phone immediately shutdown and went dead again. Took it home, plugged in, and it went into the boot loop again.
Anyway, I've read a few threads on here and elsewhere that the culprit may be the battery. I would like to have more than just a hunch before I shell out the money and time to replace the battery -- is there any way I can verify that the battery is indeed the problem? I didn't seem to be having any battery problems before - charging and usage seemed fine. I did drop the phone rather hard a few weeks ago, but didn't seem to effect anything (short term at least).
Also, could using a non-Droid Turbo 2 charger affect battery life? I actually got the phone used and didn't get the official charger with it, so I've been using just a random leftover one for ~6 months.
TIA!
Click to expand...
Click to collapse
Try the apps such as Ampere which shows battery info.
I don't think so Non-Turbo charger can lead to affect the battery life but using a cheap charger does.

S7 Edge gets into rebooting loop then just went off with no signs of live

my S7edge, with Stock ROM, never flashed or hacked it.
was working perfectly fine.
Last software update package was a week or 2 ago.
Today, the phone suddenly froze while I'm using it, then restarted and kept rebooting automatically in an endless loop.
I tried to force it to go to recovery mood... it would go to a blue screen saying : "Installing updates" and nothing happens.
kept rebooting into safe mode or recovery/download mode until it suddenly just went totally off.
The charger wires were a bit cut lately, so it would give a broken charging lately, not sure if that caused any kind of problems to the battery or mother board.
Since then, I am not able to turn it on again in any mode.
It also doesn't show any indications when a charger is connected.
So right now it is just dead with no signs at all. non responsive to any force power ON nor to charging.
I left it for more than 5 hours now without charging, nothing changed.
Update:
So I left it overnight. In the morning, I connected the charger and indeed it drained to 0% and started being responsive to charging again.
As soon as it charged to 20% I powered it on. It loaded into recovery, giving the no command screen. Then I went on and selected system reboot.
Then it rebooted and Android started, as soon as I tried unlocking it, it froze and started again into an endless rebooting loop until it blacked out again. Now again not responsive.
I will leave it to drain again. Does anyone know what I shall do when it gets to that endless rebooting sequence. It is obvious that Android had a malfunction... not sure what as I didn't do anything new last week..
Is there a way to get it through without factory reset?
Thanks
s0000007a said:
my S7edge, with Stock ROM, never flashed or hacked it.
was working perfectly fine.
Last software update package was a week or 2 ago.
Today, the phone suddenly froze while I'm using it, then restarted and kept rebooting automatically in an endless loop.
I tried to force it to go to recovery mood... it would go to a blue screen saying : "Installing updates" and nothing happens.
kept rebooting into safe mode or recovery/download mode until it suddenly just went totally off.
The charger wires were a bit cut lately, so it would give a broken charging lately, not sure if that caused any kind of problems to the battery or mother board.
Since then, I am not able to turn it on again in any mode.
It also doesn't show any indications when a charger is connected.
So right now it is just dead with no signs at all. non responsive to any force power ON nor to charging.
I left it for more than 5 hours now without charging, nothing changed.
Click to expand...
Click to collapse
Bro flash latest stock rom
Solved !
It was already on stock ROM.
After lots of troubleshooting, rebooting in safe mode without the SD card worked fine. I then rebooted in Recovery mode, wiped the cashe, rebooted again normally with no SD card. Then inserted the SD card after.... got a message that SD card is not supported (seems it got corrupted somehow).
Anyways, now it's fine... let's see for how long...

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