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vox - turns itself off with no reason ;/

hi,
as you can see, I've got quite unusual problem with my vox.
the phone screen goes black, it blinks once the right green diode for half a second (could this be an error code?) and turns itself off. (not saving any changes made, or sms sent/recieved)
it usually happens when I make a phonecall, or browse the net, but lately it has started to happen randomly, when I browse the menu, or use any other programs.
What's interesting, is that after turning the phone back on form such a malfunction, the battery status shows it's below 20% and turns itself off again almost instantly.
The only solution I've found so far, is to wait some time, switch it on again, and pray that the battery indicator would show the state before malfunctionong. If it does, the phone could work as long as the battery remains charged (or turn itself off again, as it happens more frequently lately)
Does anybody hav some clue what could it be? malfunction of the battery, or phone itself?
I dont think it's a software issue, because just yesterday I replaced WM6.1 (drGonzo) with wm 6.5 ( the 2.1 ver by frauhottelmann)
and it still occusrs.

Same problem
Yeah i am also facing the same problem with my Vox...it is around 1.5 yrs old...and i know its battery is dying...but it happens even the battery is fully charged...
Is it really because of the battery or some hardware...

Dude its due to battery .May be you are charging your machine through USB. Your battery need replacement..It will show you full battery.Its false showy.
I faced the same.Now I happy after changing my batttery

FIrst of all check the battery mates.
Me and my friend both had the vox that with full battery charged suddenly turned off after a call...and definitely was THE BATTERY.
Now I bought a double capacity for about 10 euros shipped...and my vox stays on without intensive usage (3-4 calls of 4 min each, and about 10-15 sms for about 8 (EIGHT) days)

Try to empty the battery completely and then recharge it completely!
To really empty it, put it in boot loader and unplug the cable. Let it sit until the screen turns off. Then recharge it without turning the device on.

My phone has started doing this recently, it doesnt seem to be as bad if I put it on Aircraft mode, but it always turns off randomly after a while at least, I am going to try frauhottelmann idea now.
Also, if it works I would like to flash it to WM6.5, how can I check to see if I need the USLP? I got the phone second hand so I am not sure what the phone was originally.

Had this problem for a few weeks now. Just put it into boot loader mode to see if it works. Shall let you know later or tomorrow

forgot to update the topic ;D
I've changed the battery for a new one, and now it's running smoothly and lovely

swistak22 said:
forgot to update the topic ;D
I've changed the battery for a new one, and now it's running smoothly and lovely
Click to expand...
Click to collapse
Good to hear that !!

frauhottelmann said:
Try to empty the battery completely and then recharge it completely!
To really empty it, put it in boot loader and unplug the cable. Let it sit until the screen turns off. Then recharge it without turning the device on.
Click to expand...
Click to collapse
Since i m facing the same problem and that now it is confirmed that it is due to battery, I wished to try FMs idea. but its now more than 2 days in bootloader, my phone is still not discharged completely. is there any other way to completely discharge the battery?

Well, seems your battery has plenty of life! LoL
BTW I suggest you to activate BT and WIFI...then run TCMP into loop and maximum volume...
the phone should run out fast...when the phone suts itself off..you could do the FM's thing just to refine the discharge.
Regards

TheBo said:
Well, seems your battery has plenty of life! LoL
BTW I suggest you to activate BT and WIFI...then run TCMP into loop and maximum volume...
the phone should run out fast...when the phone suts itself off..you could do the FM's thing just to refine the discharge.
Regards
Click to expand...
Click to collapse
It finally has discharged... now waiting for it to get full charged... hope this works!!!

frauhottelmann said:
Try to empty the battery completely and then recharge it completely!
To really empty it, put it in boot loader and unplug the cable. Let it sit until the screen turns off. Then recharge it without turning the device on.
Click to expand...
Click to collapse
No luck with this method. The problem still persists. It is still turning off randomly.
Guess finally, i'll have to change the battery. hope after changing the battery the problem gets solved.

SAHILISTHEBEST said:
No luck with this method. The problem still persists. It is still turning off randomly.
Guess finally, i'll have to change the battery. hope after changing the battery the problem gets solved.
Click to expand...
Click to collapse
Dude I told you before that you have to change the battery .There is no other solution rather than this .I had same problem so I changed my battery .Now its working fine.You can buy its battery from ebay .But the battery I bought is not original but its working fine.It cost me around Rs 900 from ebay.
Good luck !
Yogusmilu

yap, its the battery alright. facing the same issue, but the battery is warn out due to intensive charging from my car...
so, incoming new battery

actually i think i have a different kind of problem... my mobiles do not restarts instantly, the screen first fades to grey (as if the lcd is damaged with only grey and white vertical lines visible), and then to black and then it restarts. has any one faced similar problems? Can this be solved by changing the battery?
and i dont know but somehow each time i set the correct TIME in the clock, after sometime my clock slows and shows the wrong time(as in case of a wall clock with weak batteries).
any suggestions?

This method worked for me....
Switch off the phone, take out SIM..clean the sim enclosure area and insert SIM..RESTART

naidu001 said:
This method worked for me....
Switch off the phone, take out SIM..clean the sim enclosure area and insert SIM..RESTART
Click to expand...
Click to collapse
No success. I think i will have to change my battery afterall.

solve problem
i have same problem but my power button not work i have to remove and reinsert the battery for start it and it turn of if i press any button after phone start now i solve it after start i have to long press red button it turn off but before it keypad lock and after i reinsert battery and it already keypad locked so i unlock and use it but it solve only turn off after start up.

mean13 said:
i have same problem but my power button not work i have to remove and reinsert the battery for start it and it turn of if i press any button after phone start now i solve it after start i have to long press red button it turn off but before it keypad lock and after i reinsert battery and it already keypad locked so i unlock and use it but it solve only turn off after start up.
Click to expand...
Click to collapse
An easier way to turn the phone off other than having to remove and rinsert the battery if the power button does not work, is to open the Sim card door.
Roland

[Q] Random reboots on pressing wake button?

Hi all,
Right, my phone isn't rooted as I just sent it off to HTC to have a look at - to no avail - they may just have reloaded the ROM which was wonderful
Anyway, for a while now I've been having issues whereby, normally whilst the phone is on low battery (~15%), pressing the power button to wake the phone will result in the screen staying black, before after 2 seconds, rebooting to the HTC logo.
I expected this to be a hardware error, so simply loaded my apps and settings back on as soon as it was returned. Is there any possibility that it may be something other than a hardware error that could cause this reboot, such as the SIM card or a particular app?
It's absolutely doing my nut in
Cheers,
James

Jambone said:
Hi all,
Right, my phone isn't rooted as I just sent it off to HTC to have a look at - to no avail - they may just have reloaded the ROM which was wonderful
Anyway, for a while now I've been having issues whereby, normally whilst the phone is on low battery (~15%), pressing the power button to wake the phone will result in the screen staying black, before after 2 seconds, rebooting to the HTC logo.
I expected this to be a hardware error, so simply loaded my apps and settings back on as soon as it was returned. Is there any possibility that it may be something other than a hardware error that could cause this reboot, such as the SIM card or a particular app?
It's absolutely doing my nut in
Cheers,
James
Click to expand...
Click to collapse
does ur battery life good ... coz it maybe didn't give the real status .. so it can't load phone awake amount of power

musa91 said:
does ur battery life good ... coz it maybe didn't give the real status .. so it can't load phone awake amount of power
Click to expand...
Click to collapse
Tried with two batteries, tries wiping the battery stats. Also occasionally happens with high charge so it doesn't seem a battery issue.
Cheers though.

I'm having a similar issue from time to time. I've been lucky enough to not have this issue for the last 4 weeks or so but 3-4 days ago it came back. But I think I solved it, at least temporarily.
Next time it crashes, remove the battery and while the back cover is off, press and hold the power button for ~10 seconds to drain what little power is left. Then put the battery and cover back on but don't turn the phone on. Instead, charge it until the led turns green. I'm not sure if this really is a fix but since I did this it hasn't crashed. I remember doing something similar back in January and it seemed to fix the issue then too. But it seems to come back over a period of weeks/months.
PS. Now that I think of it, maybe you don't have to wait for it to crash. Just turn it off and go through the steps and see if it helps.

apex84 said:
I'm having a similar issue from time to time. I've been lucky enough to not have this issue for the last 4 weeks or so but 3-4 days ago it came back. But I think I solved it, at least temporarily.
Next time it crashes, remove the battery and while the back cover is off, press and hold the power button for ~10 seconds to drain what little power is left. Then put the battery and cover back on but don't turn the phone on. Instead, charge it until the led turns green. I'm not sure if this really is a fix but since I did this it hasn't crashed. I remember doing something similar back in January and it seemed to fix the issue then too. But it seems to come back over a period of weeks/months.
PS. Now that I think of it, maybe you don't have to wait for it to crash. Just turn it off and go through the steps and see if it helps.
Click to expand...
Click to collapse
U r right.....It could help when my device random shutdown I used to do that but I wasn't charching it ... It drain static elect. Left in the chips keep the good working
Sent from my HTC Sensation Z710e using XDA

apex84 said:
I'm having a similar issue from time to time. I've been lucky enough to not have this issue for the last 4 weeks or so but 3-4 days ago it came back. But I think I solved it, at least temporarily.
Next time it crashes, remove the battery and while the back cover is off, press and hold the power button for ~10 seconds to drain what little power is left. Then put the battery and cover back on but don't turn the phone on. Instead, charge it until the led turns green. I'm not sure if this really is a fix but since I did this it hasn't crashed. I remember doing something similar back in January and it seemed to fix the issue then too. But it seems to come back over a period of weeks/months.
PS. Now that I think of it, maybe you don't have to wait for it to crash. Just turn it off and go through the steps and see if it helps.
Click to expand...
Click to collapse
Cheers mate, I'll give it a go now

Hi, i know this is an old thread, but I have the exact same problem on my Desire S. So i'm wondering if you ever solved this problem?

When you press the wake button, the phone doesnt restart, it just boots up. It is quite a known issue. There seem to be a design flaw that makes the battery just a little bit loose. So little that its not really noticealble, but enough to.cause the phone to turn off randomly. The solution is to place a.little piece of paper on the opposite site.from the battery connector pins. It makes the battery hold really tight, and ive never had this issue ever again.
Hope.i.could help.
Sent from my HTC Sensation XE with Beats Audio Z715e using xda app-developers app

I had similar prob
I used to have lots and lots of apps installed on my phone ALONG with all the tmobile apps since my phone is NOT rooted.
At some point on, my phone would constantly reboot from the white screen with HTC logo.
Then I thought maybe i'm over doing my phone, so I tried uninstalling some of the apps that I don't use as often.
It helped me...
hope it helps you too =]

Look for a video named "HTC sensation random shutdowns/reboots problem SOLVED" on Youtube. I can't post any link as I'm a new user, but this simple fix worked for me!
Apparently this issue has nothing to do with software updates or custom roms. It is just a design flaw that prevents the battery from connecting completely to the pins

Random Shutdown..slightly different view on this problem

Update 14/09/2012
Ok, I don't think what I had in mind helped. On 13th, I had multiple shutdown while trying to use cameras and today had multiple shutdown while on the phone to someone.
Think I will try doing something with Firmware next, now have a feel it might be the cause. I have no idea what is wrong, so just going to give with anything really. Will report back soon.
Update: 13/09/2012
After a complete drain the first time, by booting into recovery and bootloader (just want to remind everyone that this is because I can't make my phone boot). Then I left it on charging for the whole night, and I did this through wall charger NOT USB. I think I read it somewhere that they recommended this when calibrating your battery. Then the next day got 1 random shutdown, then I used it until it is completed drain again. Then followed by another full charge using wall charger. Today I have been using it for 6 hours and 21 minutes, haven't had a single problem. I don't know how not doing this would cause the phone to shutdown, but doing what I did seems to be working so far. I can actually rely on it for something now, say important phone calls.
Here was my reply to elvisypi:
Just to answer your question, it would random shutdown (not so much reboot) at anytime, at any battery percentage. I could do be doing anything, using any app, sometimes when I am not even using the phone.
I don't think it's a hardware/battery/ROM/kernel problem, I tried to say that it is a combined problem caused by flashing a phone too many times maybe or too often in a period of time. Also I was just about to update saying that calibrate battery does help. I had no reboot so far and this is only the second full charge and full drain I did.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original post 11/09/2012
After reading kushXmaster's post (click here) about how to add an object to help the battery stay in position (or get better connection), I found evidence that my issue was different. Before anyone ask, yes I have tried kushXmaster's idea, and no it did not work for me.
Ok, this is what I found. I had this problem not only with my current phone (htc sensation) but also with my previous phone (htc desire). So now thinking about it, it can't be the hardware problem. Cos the same problem happening to 2 different phones is pretty unlikely, not impossible, but very unlikely. The other thing was that my phones (both) didn't do this at the start when it was new, and it has only been like this a few months later (since I rooted it). For those who already guessed, yes I believe it's the flashing phones which is messing it up. However I don't know the reason or understand what is wrong with the phone. I have tried wipe battery stats and calibration, nothing worked, the only thing I found was when I go back to Sense 4 roms the problem seems better, but it is still there.
The last and most important reason why I am don't think this is a battery or hardware problem, is that my phone boots into bootloader or recovery with no problem (no reboot or shutdown). But when i tell it to boot normally it decides it hates me and turns it self off.
I am currently experiencing this problem, my phone is in recovery and I am waiting for battery to drain completely. Then gonna do calibration from there, hopefully this will work. I will keep you guys updated. Also if anyone has suggestions please leave a comment, and also let me know if anyone else is in the same position, good luck!

If you want to drain your device battery faster or more nicer way put screen timeout to never and like this you can still use your phone normal and drain the battery aswell just a little tip
Sent From My Sexy Sensation.

shahkam said:
If you want to drain your device battery faster or more nicer way put screen timeout to never and like this you can still use your phone normal and drain the battery aswell just a little tip
Sent From My Sexy Sensation.
Click to expand...
Click to collapse
If I could get it to turn on then I have a lot of ways to drain it quickly, but like I said it won't boot without shutting down before I could do anything. I turn it on, and I see the lock screen then bam it is shut down again.

lavafire said:
If I could get it to turn on then I have a lot of ways to drain it quickly, but like I said it won't boot without shutting down before I could do anything. I turn it on, and I see the lock screen then bam it is shut down again.
Click to expand...
Click to collapse
Ohhh sorry didn't get that
Sent From My Sexy Sensation.

To drain battery.. switch on wifi and bluetooth.. thn use 3g for 20 mins.. u will drain compltly
Sent from my HTC Sensation using xda premium

lavafire said:
After reading kushXmaster's post (click here) about how to add an object to help the battery stay in position (or get better connection), I found evidence that my issue was different. Before anyone ask, yes I have tried kushXmaster's idea, and no it did not work for me.
Ok, this is what I found. I had this problem not only with my current phone (htc sensation) but also with my previous phone (htc desire). So now thinking about it, it can't be the hardware problem. Cos the same problem happening to 2 different phones is pretty unlikely, not impossible, but very unlikely. The other thing was that my phones (both) didn't do this at the start when it was new, and it has only been like this a few months later (since I rooted it). For those who already guessed, yes I believe it's the flashing phones which is messing it up. However I don't know the reason or understand what is wrong with the phone. I have tried wipe battery stats and calibration, nothing worked, the only thing I found was when I go back to Sense 4 roms the problem seems better, but it is still there.
The last and most important reason why I am don't think this is a battery or hardware problem, is that my phone boots into bootloader or recovery with no problem (no reboot or shutdown). But when i tell it to boot normally it decides it hates me and turns it self off.
I am currently experiencing this problem, my phone is in recovery and I am waiting for battery to drain completely. Then gonna do calibration from there, hopefully this will work. I will keep you guys updated. Also if anyone has suggestions please leave a comment, and also let me know if anyone else is in the same position, good luck!
Click to expand...
Click to collapse
If you get random reboots, shutdowns, than don't even bother to calibrate the battery. It has nothing to do with the calibration. Tell us more info, how do the reboots happen, how often, what are you doing when it happens, etc. It could be a kernel/ROM problem, charger, battery, hardware. Pls give us more detailed info

shahkam said:
Ohhh sorry didn't get that
Sent From My Sexy Sensation.
Click to expand...
Click to collapse
No problem, appreciate the help :good:

elvisypi said:
If you get random reboots, shutdowns, than don't even bother to calibrate the battery. It has nothing to do with the calibration. Tell us more info, how do the reboots happen, how often, what are you doing when it happens, etc. It could be a kernel/ROM problem, charger, battery, hardware. Pls give us more detailed info
Click to expand...
Click to collapse
Thanks for the tip, but tbh if i know all that I don't really need to be asking anyone. For example, if it is a ROM problem, i just change ROM. The problem is that I don't know the cause and it seems to be everything and anything, it will shut down at different length of time, sometimes when it just starts, others 30 seconds after boot has completed. I am not looking for a solution, I am more wondering what everyone else has experienced when they say they have random reboots or shutdown, because after tones of research no one has provided anything that fixes my problem.
Just to answer your question, it would random shutdown (not so much reboot) at anytime, at any battery percentage. I could do be doing anything, using any app, sometimes when I am not even using the phone.
I don't think it's a hardware/battery/ROM/kernel problem, I tried to say that it is a combined problem caused by flashing a phone too many times maybe or too often in a period of time. Also I was just about to update saying that calibrate battery does help. I had no reboot so far and this is only the second full charge and full drain I did.

I had a same reboot problem and tried the kushXmaster's trick with the business card and did not worked for me either, at the beginning…
There was no reboot or shutdown in bootloader mode in my device either. When I flashed new firmware and ROM the problem was gone, but only for few weeks. I tried multiple ROMs also, but always with the same result. This is why I was skeptic with the business card battery fix also.
But then I read kushXmaster's thread again and put an alu foil as shown by Shreyas Jani and pulled the ground pin as described by StuartTheFish. I still do not understand what happened, but my phone is working perfectly more than a month now, without restarts and shut downs. I do not know which solution helped (not sure if I placed a business card correctly before). But I do not want to experiment with this anymore. I did not even removed a battery cover since that time and I'm glad it is all working now.
Hope this helps.

prgab said:
I had a same reboot problem and tried the kushXmaster's trick with the business card and did not worked for me either, at the beginning…
There was no reboot or shutdown in bootloader mode in my device either. When I flashed new firmware and ROM the problem was gone, but only for few weeks. I tried multiple ROMs also, but always with the same result. This is why I was skeptic with the business card battery fix also.
But then I read kushXmaster's thread again and put an alu foil as shown by Shreyas Jani and pulled the ground pin as described by StuartTheFish. I still do not understand what happened, but my phone is working perfectly more than a month now, without restarts and shut downs. I do not know which solution helped (not sure if I placed a business card correctly before). But I do not want to experiment with this anymore. I did not even removed a battery cover since that time and I'm glad it is all working now.
Hope this helps.
Click to expand...
Click to collapse
I experienced exactly what you experienced, when i flash a new ROM it is ok for a while. Then just gets to the stage where it happens again. I also tried almost every single ROM I could find, only sense 4 seemed to help but still didn't solve this problem completely.
Thanks for the help, really useful. If what I am trying now doesn't work then what you suggested will definably be my next hope. Cheers!
Edit: I know what you mean, if it works that back cover is not coming off.

same as you
I experience now typically the same problem as yours.
Did changing firmware helped? And how to do this?

Phone shutting down at random %ages (50, 60, 40+)

Hi All,
I'm facing a weird issue with my phone from more than 2 months and it has reached a frustrated level now. It used to shut off at levels like 15%, sometimes between 15-25%. But nowadays, it shuts down automatically at 40-60% and that is really unreliable. So, i wanted to check if there are other people facing the same issue or is it only my device. Please share your views, any possible solutions, possible reasons, and if applicable, similar experiences.

thanks for the info, i got my oneplus one back in 2013, hopefully it will not shutdown after a while. i have not found such problem and hope i will not in the future as i want to have the phone for at least 5 years

karthics4 said:
thanks for the info, i got my oneplus one back in 2013, hopefully it will not shutdown after a while. i have not found such problem and hope i will not in the future as i want to have the phone for at least 5 years
Click to expand...
Click to collapse
Well i do hope you won't face any issues with your phone. But this is totally weird. This is making my phone unreliable for me.
Sent from OnePlus One

abhibnl said:
Hi All,
I'm facing a weird issue with my phone from more than 2 months and it has reached a frustrated level now. It used to shut off at levels like 15%, sometimes between 15-25%. But nowadays, it shuts down automatically at 40-60% and that is really unreliable. So, i wanted to check if there are other people facing the same issue or is it only my device. Please share your views, any possible solutions, possible reasons, and if applicable, similar experiences.
Click to expand...
Click to collapse
Clear all data from recovery and reflash system with fastboot images. http://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541

kushal.purkar said:
Clear all data from recovery and reflash system with fastboot images. http://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541
Click to expand...
Click to collapse
If you won't mind asking, how actually will that help with this issue? I'm just curious to know

abhibnl said:
If you won't mind asking, how actually will that help with this issue? I'm just curious to know
Click to expand...
Click to collapse
I had the same issue after I updated to MM and recently after latest update also. I had to do the same thing. Reason behind that was xposed was incompatible. But as I flashed everything. (/system/data too ) now its working fine

kushal.purkar said:
I had the same issue after I updated to MM and recently after latest update also. I had to do the same thing. Reason behind that was xposed was incompatible. But as I flashed everything. (/system/data too ) now its working fine
Click to expand...
Click to collapse
Thanks for the details. Unfortunately, i would need some time to perform this as i barely get time to flash roms. Thanks again!
Sent from OnePlus One

Dude... just get a new battery...

Traace said:
Dude... just get a new battery...
Click to expand...
Click to collapse
Just the answer i was looking for [emoji106] [emoji106]
Sent from OnePlus One

abhibnl said:
Well i do hope you won't face any issues with your phone. But this is totally weird. This is making my phone unreliable for me.
Sent from OnePlus One
Click to expand...
Click to collapse
thanks so much, bought it after my nexus4 died which im still sad about because its one of my 1st real android phones after having a contract android phone.

As an update, i kept my phone on charge for straight 4-5 hours. and now it shuts down after 20-25%. Definitely an improvement. But still it's a mystery why does it show this bug in the first place.

Umm, how has no one mentioned maybe trying battery calibration!? Seems like a fairly obvious first step here to take before swapping out for a new battery.. Plug the phone in and let it charge entirely. Even at 100% in Settings > Battery it will still show "100% - Charging on AC" (or USB whatever you've got connected)
You need to wait for that to turn into "100% - Charged." Then, calibrate using any battery calibration app from the playstore, ( I use this one )
After it charges to 100% - Charged, hit "calibrate" in the app, disconnect the charger, and let it drain entirely. You might find it dying out before 0% once again, but this hopefully should have been the last time. Plug the phone in and switch it on as soon as you can while it starts to charge. Let it charge uninterruptedly to 100% - Charged, again.
Not saying this might solve it 100% but it is an option to try.

GuitarGuy96 said:
Umm, how has no one mentioned maybe trying battery calibration!?[emoji14]Seems like a fairly obvious first step here to take before swapping out for a new battery.. Plug the phone in and let it charge entirely. Even at 100% in Settings > Battery it will still show "100% - Charging on AC" (or USB whatever you've got connected)
You need to wait for that to turn into "100% - Charged." Then, calibrate using any battery calibration app from the playstore, ( I use this one )
After it charges to 100% - Charged, hit "calibrate" in the app, disconnect the charger, and let it drain entirely. You might find it dying out before 0% once again, but this hopefully should have been the last time. Plug the phone in and switch it on as soon as you can while it starts to charge. Let it charge uninterruptedly to 100% - Charged, again.
Not saying this might solve it 100% but it is an option to try.
Click to expand...
Click to collapse
Well already tried and i may sound a bit silly, but studies have proved that battery calibration is a myth. Android automatically cleans the batterystats.bin file after every single full charge. Rest assured, i have already done that with no avail.
Sent from OnePlus One

I had the same problem, phone was switching off @ 40% and at times @35%. Battery calibration certainly helped. No more problems now. Works well if the phone is rooted.

Shutting down after startup

Hi,
there are some threads about the bootloop problem, but I couldn't find exactly same problem: some days ago my phone landed into the bootloop. It was a bit spooky with battery charging state, it was jumping for different states - 3%, 99%, 24% after every loop. So I bought a new battery and replaced the old one. Now the phone starts to LG logo (with starting sound), but after 10 seconds I can hear the power-off sound and the phone turns off. It seems to be a "normal" shutdown, not the "reset-bootloop": I hear power-off-sound, LG-power-off-logo and LED is blinking blue for about 10 seconds. After that it repeats infinitely. Also, if I turn the phone off it stays off, but if I put the charger in it, it's starts from itself again and again. Did not tried the hard reset until now. Any ideas, guys?

update: tried hard reset. it's starts until "optimizing apps", if it's done, i can see for a second the "first setup" screen and then it's immediately shutting down. same problem with the old, original battery.
edit: for the first time I saw message "high temperature" on the screen, before it was powered off. But the phone is not even warm...

critdmg said:
update: tried hard reset. it's starts until "optimizing apps", if it's done, i can see for a second the "first setup" screen and then it's immediately shutting down. same problem with the old, original battery.
edit: for the first time I saw message "high temperature" on the screen, before it was powered off. But the phone is not even warm...
Click to expand...
Click to collapse
What you describe is exactly that happened to the Mrs's GF2. One day it was fine and then all of a sudden the battery drained really quick. Now she can only get to the optimizing apps screen before it shuts down again. Ordered a new battery but that doesn't look to be the solution from your findings. :crying:

My phone has the exact same prblm n i was thinking of buying a battery but now that i have read your post i am doubting my battery purchase.
By the way have u found any fix also are u sure the battery is genuine n not some poor replica?

I had this problem when I had flux in my battery port causing a battery connection problem. Sometimes it said temperature too high and other times temperature too low. I was able to fix it by taking out the motherboard using 90% alcohol and a toothbrush to clean the battery port in the motherboard. Then I let it dry and problem was gone. Now I'm not saying this is exactly your problem but it just means that there's most likely bad connectivity to your battery. It could be your battery, the cable or the port.

Mrs received her new battery and it seemed genuine. Put it in and the phone is 100% dead. No power, no charging, no life.
Its not all bad news as she bought a Honor 6X which is a far better phone.

I tried all the hints I could find (except cleaning it with alcohol), but nothing help to start the phone again. Could be defective heat/temp sensor on the motherboard.
Battery was from "Polarcell" - that's a pretty good one manufacturer with satisfied user reviews on amazon (also had good personal experience with their batteries). Just for info: phone doesn't even start with original battery anymore - same problem.
I already switched to Honor 9 (excellent phone!), but will give another try and clean the battery attachment port with alcohol today. Will give you an update later.

If you plug the phone into the charger does it even show the battery charging symbol at all?
From what I've been reading the temp sensor is in the battery and sends the temp signal through the battery connector to the motherboard. So if you replace the battery it's like plugin in a new temp sensor. However if the connector is bad then that's the only thing that I can think off that would prevent the phone from starting. If the port is bad I don't know if it can be fixed or not.

Had no luck yesterday with port cleaning. Still the same error.
probaina said:
If you plug the phone into the charger does it even show the battery charging symbol at all?
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Yes, but it's more complicated. If the phone is turned off and you plug USB in, it starts to boot from itself (without pressing the power button). In most cases it's going up to LG logo and powering off again. After powering off I can see battery charging symbol for about 5 seconds, after that it's changing to battery symbol with an thermometer. While the phone is in this bootloop, it's charging. From the point with this battery temperature symbol it stops charging. I read something on reddit about getting it up to 100% could solve the problem. So, I tried to plug it on and off about 50 times to get fully charged, got it up to 100%, but it's still rebooting. Can't get into recovery, but it's possible to get into the "hard reset"-menu, where I can wipe data. After this the phone boots normally (at the first sign), it's starting optimizing apps, I can see the "first-setup"-screen (that one with language chooser) for a half second and it turns off again. Same behavior with both batteries - new one and the original.

critdmg said:
Had no luck yesterday with port cleaning. Still the same error.
Yes, but it's more complicated. If the phone is turned off and you plug USB in, it starts to boot from itself (without pressing the power button). In most cases it's going up to LG logo and powering off again. After powering off I can see battery charging symbol for about 5 seconds, after that it's changing to battery symbol with an thermometer. While the phone is in this bootloop, it's charging. From the point with this battery temperature symbol it stops charging. I read something on reddit about getting it up to 100% could solve the problem. So, I tried to plug it on and off about 50 times to get fully charged, got it up to 100%, but it's still rebooting. Can't get into recovery, but it's possible to get into the "hard reset"-menu, where I can wipe data. After this the phone boots normally (at the first sign), it's starting optimizing apps, I can see the "first-setup"-screen (that one with language chooser) for a half second and it turns off again. Same behavior with both batteries - new one and the original.
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That's a lot of combined symptoms. I have no idea what could be wrong with yours exactly. I would try to bake the motherboard with solder flux as a last resort. I had to do that with my G flex 2 twice to bring it back to life. I'm not sure if it would fix it in your case, but at this point you don't have much to lose.

probaina said:
That's a lot of combined symptoms. I have no idea what could be wrong with yours exactly. I would try to bake the motherboard with solder flux as a last resort. I had to do that with my G flex 2 twice to bring it back to life. I'm not sure if it would fix it in your case, but at this point you don't have much to lose.
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I've already spent enough time with trying get it back to life. Loved this phone, but I had to send it to LG service every half year (3 times!) and got it every time with a new motherboard back. My brother had to send his one two times within a year because of several problems (no vibration, no sound through 3.5 jack...). Furthermore it was not possible to root or unlock the bootloader since Android 6 (what I've got with the last replaced mainboard, but what was not available through the software update!). So, just for me it was a very bad experience and for sure I'll not buy an LG phone for the next 10 years.

critdmg said:
I've already spent enough time with trying get it back to life. Loved this phone, but I had to send it to LG service every half year (3 times!) and got it every time with a new motherboard back. My brother had to send his one two times within a year because of several problems (no vibration, no sound through 3.5 jack...). Furthermore it was not possible to root or unlock the bootloader since Android 6 (what I've got with the last replaced mainboard, but what was not available through the software update!). So, just for me it was a very bad experience and for sure I'll not buy an LG phone for the next 10 years.
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Is your phone still under warranty?

le grande magnetto said:
Is your phone still under warranty?
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Yes. But I think is gone as I changed the battery... But good idea, I'll try to send it to LG service again. Who knows...

critdmg said:
Yes. But I think is gone as I changed the battery... But good idea, I'll try to send it to LG service again. Who knows...
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Oh, that might void your warranty if you changed battery yourself. As I can see you're from Germany, EU, so you should ask for DAP (defective after purchase) act from service to get refund for your phone.

I've never heard about DAP. Do I give them my phone and get from them some money back or what is that about? Is it an manufacturer service or general refund possibility in EU?

critdmg said:
I've never heard about DAP. Do I give them my phone and get from them some money back or what is that about? Is it an manufacturer service or general refund possibility in EU?
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I assume it should be available in EU. You should contact your seller or the service about if for detailed info. When you dave details about that please share them here.