[Q] Lg p990 sudden reboot & bootloop - LG Optimus 2x

Hi,
I have a problem with my p990 that a little difficult to explain. So, I charged my phone over the night and in the morning battery was at 100%. After I unplugged it, I used it for a few minutes and suddenly it showed that batter is empty and the phone rebooted. The phone started booting, but for some reason it entered in a boot loop. And as I connect the charger while the phone is in this boot loop, it suddenly boots fine and the battery is ok. This happens a few times in one day.
I'm using stock v30 rooted baseband.
Does anyone have any suggestions how to fix this?
Regards

You should get a new battery.

OR
It might be a problem with the included swap partition.
As a workaround: Go to system/bin and open the swap_enable.sh. Then delete all the stuff which is written in the file. Use root explorer to do this.
Then you have to reboot your phone. Hope this will help.

Well i had the same probleme I recommend buying a new battery it will solve that issue
Sent from my LG-P990 using XDA Free mobile app

Solution
First of all ROOT your device
then,
1. Install TITANIUM Backup
2.In that search for the option "Integrate the Dalvik to ROM"
this should do it for sure
because i had the same problem too:laugh:

Related

[Q] Captivate Reboot and Battery Loop problem

Hello everyone, long time reader, first time poster (with a real query).
Actually last Friday my cappy started to show 100% of the battery after being for some time in use, so I reboot it trying to solve the issue.
After the boot, the cell shows the Initially Battery screen for 2 seconds with the battery without charge then turns off. Tried several times and also using a second battery with full charge and same problem persisted.
10 minutes later without having a battery inside the phone, it boots but when I rebooted the problem arises again.
This weekend I installed Illuminance 3.01, after that I have installed CM9 (very nice ROM) and the battery problem still is happening. I am able to use the phone but I don´t know for how much more.
Any suggestion?
Thanks,
Martin
have you tried to wipe battery stats in recovery ?
Felixcm88 said:
have you tried to wipe battery stats in recovery ?
Click to expand...
Click to collapse
Yesterday night I did a wipe battery stats and the problem still is there.
It starts with the loop and the only way I can start the phone is plugging it then it shows the actual charge of the battery and after that I can boot.
It must be something "deeper" than the rom...
Anybody?
Thanks
Somebody can help?
I am having the exact same issue, stock froyo 2.2 rooted 5 months ago. I'm trying everything before updating to 2.3, I'll let you know if I find a fix, please do the same.
Searching google is not working this time, it's been 3 days...
Things I've tried:
1- From recovery, boot phone. Problem persists after phone is turned off.
2- Boot from revovery, then reset to factory settings, after rese, same issue.
3- Wipe cache from recovery. Problem still there.
4- Wipe cache+user data from recovery. Same thing.
5- repeating 1-4 without SD card or SIM card.
- Wipe battery data... nothing...
- Unrooting, same issue, rooted again.
- Run root fixes with Titanium backup. Same...
- Removing battery for hours, while charging it externally, replace battery, same issue.
All to no success. Things yet to try:
- Update to 2.3 using kies
- Update to beta 2.3.5 using odin
- Update to custom rom, maybe try 3 or 4 different...
- Cry, then save and buy a new phone, use cappy as shiny paperweight...
Please let me know if you could fix it...
I'm not sure what you mean when you say "initial battery screen."
But if I am to understand the rest, your problem is:
initial boot - runs fine, but battery stays at 100% no matter how long it runs.
reboot - phone now says the battery is suddenly dead, and shuts-off.
further reboots - same
You can't get the phone to fully boot till the battery is left out for a while and the phone is fully de-energized.
You have tried a different battery and it behaves the same.
- - - - - -
Have you tried using a known "good" battery? (a new one or one from someone who's phone works fine)
Also, what happens if you plug in the USB while the phone is off? (after the inital boot, when it is stuck in the "dead battery loop.")
Still dead after installing update and 2 custom roms...
Yes I tried a good battery from another cappy, if I plug in the cable it does the same, instead of normally booting, it displays an empty battery and goes off.
I am able to make it work but only entering the restore mode, so I cannot for example be on a trip and reset the phone for whatever reason...
have you tried using a different kernel?
Sent from my SGH-I897 using XDA App
sorry, but how can I try a different kernel? do i need to change the rom?
Nah, kernels can be flashed independent of ROMs just look through development for topics that have "[Kernel]" as the fist word in their title.
If you have gone and loaded two custom ROMs and it still persist then it's not a kernel issue. As the kernel is always changed along with the ROM.
That said, I can only think of two other possibilities: one being dirt or such making a short in the contacts of the usb (does it sometimes think it is plugged in when it's not), two something in the circuitry for the battery randomly went bad.
Try cleaning the socket for the usb. If that does not fix then assume the worst
leaked from my ICS- FUSED SGS I897 contaminating you via XDA app.
Ok, here's the thing, I left it without the battery for 24 hrs, then it was worst. The phone would not turn on at all. However, after that I tried putting the battery in while holding the power button, it worked!!! it's better than having to connect to the computer, but still, I don't want to have to do this every time... flashing roms now to try again.
We're getting somewhere now...
DaNaRkI could be right about it being a circuitry problem (which would suck). With that in mind, have you checked to make sure the prongs which connect the battery to the phone are still in good shape?
When you flashed the roms, are you doing complete wipes? (wiping the cache/dalvik/data)? It might be worth it to go one step beyond that and format all the partitions and then reflash. I think if you do that, you could basically rule out any software problems.
Be sure to back up your data!
P.S. When you do all this wiping and formating and reflashing, boot up and check to see if the problem is still there before you put your data back on jic there is some weird corruption in your data which is causing this.
ok.
have you checked to make sure the prongs which connect the battery to the phone are still in good shape?
yes I have, they're perfect
When you flashed the roms, are you doing complete wipes?
many times, actually
I have yet to format all partitions, how can I do that?
Thanks!!
and yes, all my data is well backed up in my PC and cloud...
---------- Post added at 12:31 AM ---------- Previous post was at 12:09 AM ----------
this is rather odd, just tried to factory reset again, then restarted using the battery method, then... turned it off, and now it boots normally!!!
Thanks for your help !!!
I have the same problem. What exactly did you do? I use a custom rom, and I flashed stock gingerbread 2.3.4.
Formatting the partitions won't do anything, since the phone won't even turn on sometimes. So when exactly did this problem start happening? Was it after a particular flash or other incident?

[Q] Phone suddenly «wiped» / won’t boot

Yesterday I suddenly found my phone to be turned off by itself. When I tried to turn it on again, nothing usually happened. Sometimes however, it looked like it would turn on, but the white bootlogo would barely show, or maybe up to a second, and then it would go black again. When connecting a charger the charging icon would show for a second, and then black again, and still the phone wouldn’t boot. Recovery or download mode wouldn’t work either. I was hoping it was only the battery that had just died, since the phone won’t work at all without the battery, even with the charger connected. But when I tested a friends battery today, it would still not boot, and my battery worked fine in his phone. But, at least it turned on each time now, showing the bootlogo for a second, and then all black again. Recovery mode still won’t work, but I’m able to get it in download mode. If I connect the phone to the PC by cable first, it won’t start or go in download mode, I have to get it in dowmload mode first and then connect. I was using stock system v2.3.3 from about a year ago, but with Clockworkmod kernel.
So what could have happened? I figure the system is either corrupt, or even wiped?
Or could the phone itself be badly corrupted?
I also have to mention, that a few months ago the internal and external SD-card was suddenly wiped, and I got a message about error on one of them and had to reformat.
Since download mode is ok, I hope there is a chance to maybe flashing the system again with Odin?
Is ther any way to connect the phone to the pc and get access to the memory to maybe copy whatever data still there, if any? Or can I reflash to just put the new system on top of everything without formatting?
I think your sd connectors are corroded or damaged. For your data try to flash the semaphore kernel by Odin to get a recovery (link ). After flashing, go into the recovery look for "mont and storage" and select "mount usb storage" or something like that. With your pc connect your device and copy your data in your pc like an usb stick.
If it doesnt work, say goodbye to your data and try to reflash a rom by Odin
Link here
http://hotfile.com/dl/140301534/be8872c/I9000XXJVU_I9000OXAJVU_OXA.rar.html
Instruction:
- Unzip the file
- Open Odin (if you don't have it download here )
-Put CODE in the PDA case
-Put MODEM in PHONE
-Put CSC in CSC
-Now Put your phone in Download Mode and connect it
-Press Start and don't touch anything until the great case above the yellow one became green.
Please reply me for more info
Thanks, I'll try that tomorrow morning at work, don't have the time today.
At least I do have a complete backup from about two months ago, so it's no disaster about the data. There's not really anything that important on the phone, it's just all the work setting everything up like I want it again.
Please reflash a stock rom with odin...
I was able to flash semapfore kernel, but still I couldn't get the phone in recovery mode.
Flashed stock firmware 2.3.3 (last nordic version), and the phone booted fine, but lots of old programs kept crashing and messing with the system. Best of all, everything on the internal sd was there, so all the latest titaniumbackup was there. So I copied this to the PC, did a factory reset, flashed CF-root again, copied the titaniumbackup and clockworkmod-backup to the internal sd, and cwm-backup is beeing restored as we speak. Then titaniumbackup will be restored and everything should be fine for now.
I'll be leaving for holiday in a week, so I don't want to use lots of time right now to do a clean setup of the phone. There is way too much other things I have spend my time on before the holiday. But after the holiday I think I'll just have to do so.
Thanks for helping.
For your apps who crash you have to wipe apps data (with TB).
The apps crashing when I just reflashed didn't really matter since I was going to install the backup anyway.
But a few apps kept crashing even after I flashed the backup. So wipe app data was what I eventually found out I had to do.
And so the same thing happened again.
But this time it doesn't seem like reflashing will help at all.
Crappy trashphone, it's been a disaster rom day one.
First backup every thing and wipe
Sent from my GT-I9000 using xda app-developers app
dakudakuji said:
First backup every thing and wipe
Sent from my GT-I9000 using xda app-developers app
Click to expand...
Click to collapse
The phone won't boot, and won't go into recovery mode, only download mode.
When I turn it on the boot logo only shows barely, and then nothing happens, just like last time.
I've tried reflashing several times using Odin, but this time it doesn't help, phone still won't boot. I've tried both without repartition, and wit repartition (and pit).
My friend got me to put his phone on cm9 after using froyo for a long time.
The strange thing was that the method to get into recovery suddenly changed from volume up, power and home. For some reason it is now both volume buttons, home and power ..
Just thought I'd share this since your recovery should work after a kernel flash.
Sent from my GT-I9000 using xda app-developers app

Followed the guides....but is this bricked?

I was on previously on stock GB rom and kernal (unrooted) and then used Kies to upgrade to ICS. Then followed the various guides on XDA to get root. Everything was fine for a few months except that the responsiveness on the note was laggy probably because when i used Kies to upgrade to ICS it was a no wipe and so everything i had installed on GB moved over to ICS.
Anyway, I read up on the brick bug and followed the guide here (http://forum.xda-developers.com/showthread.php?t=1857556) to use odin to flash kernal to HydraCore. Then rebooted into CWM, wiped data and cache and then installed Rocketrom v12. Reintalled all the apps from google play. Then used titanium backup to restore the data only of various apps (the only system app restored was internet (bookmarks)). Rebooted phone and everything was still fine. Then after booting up and was running a few apps (eg whatsapp) to make sure the data had been restored. Then noticed the screen started to flicker....then after about 30 seconds the screen went blank. And now no response, cannot get into recovery, download mode and not recognise when i plug it into computer. Is this the infamous brick bug??? Or something else??? My battery was on about 40% so i guess its not out of battery....could it be that the battery has died (i am not using the original samsung battery).....pls help!!!!
the screen flickers and the phone goes off is a classic sign of battery drained to 0.. charge again while the phone is off and try to reboot again. i guess u should be ok
nokiamodeln91 said:
the screen flickers and the phone goes off is a classic sign of battery drained to 0.. charge again while the phone is off and try to reboot again. i guess u should be ok
Click to expand...
Click to collapse
Thanks for ur tip. It turned out that the battery died flat out....bought a new battery and my note is back alive again! I was so worried it was bricked! Thanks again!!!
cool..
Did you try charging the phone whilst off?

My I9000 running GamerzROM just half-bricked itself

I would have never thought that I could brick my device without... doing something wrong. Here I come, completely helpless at this point.
Earlied today the phone had worked just fine until I turned 3G on, it wouldn't actually turn it on. I tried Aeroplane mode which didn't help, so I held power button and chose to reboot. This is when the problem starts. The phone booted itself successfully through its logo, then Devilkernel logo, and lastly showed the GamerzROM logo (which is actually the Nexus logo) and kept showing this flashing logo forever. Even after 30 minutes.
CWM works just fine.
I noticed that while booting it makes a single loop (Samsung logo -> Devil logo -> Samsung logo -> Devil logo -> Nexus logo).
I've wiped partition cache and dalvik, put the ROM and Gapps on external sd and flashed again. Nothing changed.
I am also worried about the battery - when I plug the charger the device turn on (the way mentioned above) and I have no idea whether it's charging or not, at the moment I am at 24% of battery so it's risky to flash without a charge.
Please, I need some advice to fix this, without loosing my data on the phone. I could flash another ROM, but that obviously means data/factory reset.
Thank you in advance!
EDIT: I've just checked in CMW and the phone is actually charging. Battery percentage rose up.
Have you tried to return to stock ROM ?
Sent from my GT-I9000 using xda app-developers app
I've made a nandroid backup to a external SD and wiped data. The phone "amazingly" works, although I've lost all my configuration and data (maybe I'll retrieve it somehow from the backup files).
Must have been corrupted files or something.
Hmmm im running gamerzrom too since first day and i didnt have anything like this.
Did you change/update kernel?
Sent from my GT-I9000 using xda app-developers app
Nope, I didn't touch anything. Just changed the DPI once I flashed the ROM.
Well I couldn't have said a bad word about GamerzROM until yesterday's incident.
Hope it never happens again.

Mi8 not charge

Hello everyone,
I've got a problem with my Mi 8. When I charged battery to 100% then I remove cable from my phone and use it until battery 30%.
So I've to charged again but nothing happened.. it's not charging until I restart the phone, it's will charging again.. and If I want to charge my Mi 8 I must restart once before charge it.
How to solve it and what happened with my phone?
Thanks.
PS. I already update the global rom latest version
Hello i had the same problem, i installed new ROM (factory reset) and this fixed the problem, seems something gets stuck. Got mad that i had to reboot everytime when i wanted to charge phone.
At the beginning everything was stock. After the problem occured i unlocked BL flashed TWRP and then a ROM from mi-globe. This fixed problem for me, since then i never had it again.
Probably batterystats file was broken. Try deleting it. It'll be recreated at 100% charge or at reboot. You can do this on twrp or with different apps.
I agree with @The War Profiteer
Boot to recovery, and use recovery file manager to navigate to Data/system and then scroll down past the folders and delete batterystats.bin file then reboot. Alternately if you have root you can install this app "Battery Calibration" to calibrate your battery.
Afterwards charge your phone to 100%.

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