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Ok, so I was waiting until i got a new phone so i can root my g2, well never happened as my g2 decided to randomly freeze up and restart and get stuck in boot loops either on the LG logo, or freeze on the T-mobile splashscreen and restart infinately. So now i got a new phone and i want to root the old one, But first up I need to figure out what is causing the random boot loops, freezing, and shut offs. It's a T-Mobile variant
ALSO: IT WAS NEVER ROOTED, So it's not a root related issue.
NOTES:
plugging it in help increase chances of escaping loop
It doesn't require a plug in to fix but it helps.
Reboot/Glitching occur when phone is in use and out of use.
Phone works normally otherwise but suffers these glitches
Phone has be factory reset twice
Phone has no external damage
Possible Internal:
Broken L. speaker due to rain
Maybe water damage from steam (phone was on counter as i showered a few times)
possible battery issue
Maybe a bit of drop damage as i did drop it a bit, but it was in a tech21 impactology case, and it remains not cracked
I have a similar issue. The phone will loop the LG logo, but only sometimes--at other times it will poop android's boot animation until it decides it wants to boot normally.
It happens in every ROM(ota or cuatom) even after flashing the stock .tot file about 4 times, so it's clearly a hardware defect for me & probably you too. I read the logs & saw rtc blah blah time will be lost on reboot & other errors. During normal use it randomly freezes prior to rebooting itself, though it reboots even while idle for long periods.
Unfortunately I don't have a solution for your problem besides restoring the stock image.
http://forum.xda-developers.com/showthread.php?t=2432476
After that you can trade the phone in, sell it, or send it to LG.
Powered By "Yeeart!"
So If i reflash to STOCK will it work for a short time normally and in x weeks/months resort to it's retardism of loops
pvt900 said:
So If i reflash to STOCK will it work for a short time normally and in x weeks/months resort to it's retardism of loops
Click to expand...
Click to collapse
It fixed my problem temporarily, but not too long afterwards all the issues came crawling back. For this reason I suggested ditching the phone completely unless you really want LG to examine it.
Powered By "Yeeart!"
Since i own 2 G2's is it worth my time re flashing to stock and then rooting the phone, cause i plan to run my sim carded phone as my normaly device and my root would handle experiment tech uses and hacked apps/superuser apps and such stuff
pvt900 said:
Since i own 2 G2's is it worth my time re flashing to stock and then rooting the phone, cause i plan to run my sim carded phone as my normaly device and my root would handle experiment tech uses and hacked apps/superuser apps and such stuff
Click to expand...
Click to collapse
I've heard of the random reboot issue. Fixes have been created and detailed. Please give me the following info, and I can help you resolve the problem:
Current Baseband Version
Current Bootstack / Modem
Root status in recovery
Current ROM and Carrier
Current Recovery
I'm having the exact same issue with my D800. I was rooted and had run a couple of ROMs but returned to stock right after I started experiencing the reboots. Unfortunately, the return to unrooted stock - and upgrade to lollipop - didn't fix the random reboot issue.
I've noticed that when my phone shuts off I typically need to hold down the power button at least a min to get it back up and running. And when I get it back up and running the battery stats show a substantial drop in battery - between 5-10%. I took it to a local shop and they said it was a bad motherboard. I've read some threads about shorting some pins on the MB and then reinstalling pieces of the boot image piece by piece and then use the LG Flash tool to reinstall the OS.
I haven't tried it out yet but is this the fix you have in mind @dmezh?
jkeats20 said:
I'm having the exact same issue with my D800. I was rooted and had run a couple of ROMs but returned to stock right after I started experiencing the reboots. Unfortunately, the return to unrooted stock - and upgrade to lollipop - didn't fix the random reboot issue.
I've noticed that when my phone shuts off I typically need to hold down the power button at least a min to get it back up and running. And when I get it back up and running the battery stats show a substantial drop in battery - between 5-10%. I took it to a local shop and they said it was a bad motherboard. I've read some threads about shorting some pins on the MB and then reinstalling pieces of the boot image piece by piece and then use the LG Flash tool to reinstall the OS.
I haven't tried it out yet but is this the fix you have in mind @dmezh?
Click to expand...
Click to collapse
What I had in mind is a multi-step solution that didn't involve opening the device - we can try it, and if it doesn't work then I guess you should try it. I've never actually heard of the pin-shorting, can you post links to the threads?
Anyways, this is roughly what we can try (I can give you all the files you need if you give the info from my first post):
1. Get to fastboot
2. Reflash laf, recovery, boot, modem, sbl1, and a bunch of other things
3. Reboot to download mode
4. Reinstall the kitkat TOT
5. Install custom recovery and wipe all partitions
6. Kitkat TOT again
7. Factory reset (yes, even though this is a fresh install)
8. Reflash laf, recovery, boot, modem, sbl1, and a bunch of other things AGAIN
I've tried these steps before on a friend's VS980 and they seemed to fix the problem. I know that this seems overly complex, but it has been documented in other threads. Provide the info, I'll get the files, and let's get started.
I have all of the D800 files I need to restore the KitKat partitions downloaded here:https://www.youtube.com/watch?v=_d5b_osUTug but am not sure how to get the phone into a mode that I can flash the .img files I have into the right locations. I follow what you are proposing I do - just not sure how to get there.
Current Baseband Version: M8974A-AAAANAZN-1.0.19.128
Current Bootstack / Modem - not sure
Root status in recovery: not rooted stock lollipop
Current ROM and Carrier: 5.0.2 AT&T
Current Recovery: Stock Recovery
Here's the link to the hardware shorting pins post: http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
jkeats20 said:
I have all of the D800 files I need to restore the KitKat partitions downloaded here:https://www.youtube.com/watch?v=_d5b_osUTug but am not sure how to get the phone into a mode that I can flash the .img files I have into the right locations. I follow what you are proposing I do - just not sure how to get there.
Current Baseband Version: M8974A-AAAANAZN-1.0.19.128
Current Bootstack / Modem - not sure
Root status in recovery: not rooted stock lollipop
Current ROM and Carrier: 5.0.2 AT&T
Current Recovery: Stock Recovery
Here's the link to the hardware shorting pins post: http://forum.xda-developers.com/lg-g2/general/lg-g2-unbrickable-fix-real-hard-brick-t2904404
Click to expand...
Click to collapse
The pin-shorting manually puts the device into a Qualcomm fallback mode, but this is not necessary if we can just get it to go to fastboot (the images can be flashed from there as well). The only time I've been in fastboot on the G2 was when I flashed a VS980 recovery on an LS980 with AutoRec. Fastboot is triggered if any of a set of five partitions are corrupted.... so we may need to corrupt a partition. I'll try this on one of my devices first before I instruct you to do it.
dmezh said:
The pin-shorting manually puts the device into a Qualcomm fallback mode, but this is not necessary if we can just get it to go to fastboot (the images can be flashed from there as well). The only time I've been in fastboot on the G2 was when I flashed a VS980 recovery on an LS980 with AutoRec. Fastboot is triggered if any of a set of five partitions are corrupted.... so we may need to corrupt a partition. I'll try this on one of my devices first before I instruct you to do it.
Click to expand...
Click to collapse
Did you have a chance to try this out? It sounds like a good way to get the phone into fastboot but am reluctant to try without knowing if it's going to work. Thanks for your suggestions so far - and no rush on getting back I have a working backup phone at the moment.
tl;dr phone is in some kind of bootloop, tried flashing stock firmware (successful but can't get past start splash screen), plz halp me
So I was just simply browsing on my phone on reddit is fun app, some Google Chrome sites, and 9gag. So then I saved a gif on 9gag and the phone just gives up on me. It went straight to shut down without any warning whatsoever and proceeded to restart. Thinking that it was just an unusual one time thing, the phone kept rebooting and I started really getting worried. I kept getting the Samsung Galaxy S4 splash screen and after that a black screen and then it vibrated twice and I saw the splash screen again. Didn't even get to see the menu for SafeStrap. After several unsuccessful attempts, I finally accessed SafeStrap after restarting the phone from download mode pressing the volume down button. To make as much precious time as I had, I made a backup (although I checked enable compression which I shouldn't have but I didn't have a lot of space on my SD card) and made an advanced wipe cleaning everything except the SD card. I then proceeded to flash a different custom ROM (GoldenEye if you were wondering) and hoped that it was just a custom ROM error that kept giving bootloops. No such luck. The different ROM didn't even help. So I went back to SafeStrap and made another advanced wipe. At this point, I decided to flash stock firmware via Odin from this link (http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642) with NB1 base. I remember having flashed the non-rootable version successfully and restarted the phone after that. Got past the Samsung Galaxy S4 splash screen and went all the way to ATT splash screen but then it crashed right there. After that, I couldn't figure out the problem and I couldn't flash any more stock firmware (at least from that link) via Odin because I kept getting a fail notice. I asked this question on reddit and the responses kept saying that I may have a defective power button but it doesn't stay shut down and instead bootloops. Should I try to find a new GS4, get another phone or try sammobile firmwares next to see if there's any luck? I really need to save this phone as it is super dear to me. I'm at the point where I can cry right now :crying:
If you guys need any pictures or videos, I will be more willing to do so
RawSynergy said:
tl;dr phone is in some kind of bootloop, tried flashing stock firmware (successful but can't get past start splash screen), plz halp me
So I was just simply browsing on my phone on reddit is fun app, some Google Chrome sites, and 9gag. So then I saved a gif on 9gag and the phone just gives up on me. It went straight to shut down without any warning whatsoever and proceeded to restart. Thinking that it was just an unusual one time thing, the phone kept rebooting and I started really getting worried. I kept getting the Samsung Galaxy S4 splash screen and after that a black screen and then it vibrated twice and I saw the splash screen again. Didn't even get to see the menu for SafeStrap. After several unsuccessful attempts, I finally accessed SafeStrap after restarting the phone from download mode pressing the volume down button. To make as much precious time as I had, I made a backup (although I checked enable compression which I shouldn't have but I didn't have a lot of space on my SD card) and made an advanced wipe cleaning everything except the SD card. I then proceeded to flash a different custom ROM (GoldenEye if you were wondering) and hoped that it was just a custom ROM error that kept giving bootloops. No such luck. The different ROM didn't even help. So I went back to SafeStrap and made another advanced wipe. At this point, I decided to flash stock firmware via Odin from this link (http://forum.xda-developers.com/galaxy-s4-att/general/guide-odin-to-stock-updating-rooting-t2926642) with NB1 base. I remember having flashed the non-rootable version successfully and restarted the phone after that. Got past the Samsung Galaxy S4 splash screen and went all the way to ATT splash screen but then it crashed right there. After that, I couldn't figure out the problem and I couldn't flash any more stock firmware (at least from that link) via Odin because I kept getting a fail notice. I asked this question on reddit and the responses kept saying that I may have a defective power button but it doesn't stay shut down and instead bootloops. Should I try to find a new GS4, get another phone or try sammobile firmwares next to see if there's any luck? I really need to save this phone as it is super dear to me. I'm at the point where I can cry right now :crying:
If you guys need any pictures or videos, I will be more willing to do so
Click to expand...
Click to collapse
I'd say try redownloading the firmware and make sure your cable is good, try a back USB port, etc. I'd guess the firmware files didn't download properly and so it didn't flash properly. Before you do anything though, try going into stock recovery and wiping everything you can from there.
DeadlySin9 said:
I'd say try redownloading the firmware and make sure your cable is good, try a back USB port, etc. I'd guess the firmware files didn't download properly and so it didn't flash properly. Before you do anything though, try going into stock recovery and wiping everything you can from there.
Click to expand...
Click to collapse
Thank you for the reply. As for the firmware, where should I acquire them? The link I posted has only one firmware (NB1) and I cannot access stock recovery AT ALL. When I do, I can see the blue text in the corner "Recovery booting..." and then the phone restarts again. This is really frustrating
RawSynergy said:
Thank you for the reply. As for the firmware, where should I acquire them? The link I posted has only one firmware (NB1) and I cannot access stock recovery AT ALL. When I do, I can see the blue text in the corner "Recovery booting..." and then the phone restarts again. This is really frustrating
Click to expand...
Click to collapse
NB1 is the only one you can get, just try downloading either one again.
DeadlySin9 said:
NB1 is the only one you can get, just try downloading either one again.
Click to expand...
Click to collapse
I did twice today and I keep getting the same message in Odin, like setting up a connection and then it fails
RawSynergy said:
I did twice today and I keep getting the same message in Odin, like setting up a connection and then it fails
Click to expand...
Click to collapse
When you plug in the phone in Download Mode, does the blue box in Odin light up? If not, reinstall samsung drivers
Sent from my SM-N910G using Tapatalk
I'm usually fairly good at troubleshooting my own stuff but this really has me stuck in the same place for a few hours now.
So basically Flipboard has been nagging me(well play store is, not the app itself but anyway) so I said to myself why don't I uninstall it since I've never used it and don't plan to, and besides I hate to have pointless apps installed. So I open TitaniumBackup and I see it is installed as a system app, I thought what's the worst that can happen? so I do uninstall it and a minute later my phone shuts off. I try to turn it on and it doesn't go past the Samsung Galaxy Note 4 flash screen, it either reboots or stays like that.
I try to go into recovery to restore a backup and I can't, it is stuck at Recovery Booting and again it either stays like that or reboots and does it again and again and again.
Now, I haven't made any changes or installs on my phone for weeks now, so this is either because I unistalled Flipboard(I know I shouldn't have risked it since it was a system app but I really could not see it going this way) or the hardware is on it's way out(don't see what else could it be).
I figured I should flash a stock rom with odin, I can get into download mode, and reinstall everything from scratch.
I took a stock image from xda and flashed it and it does exactly the same thing.
Right now I'm downloading another stock image from sammobile for my country/provider to see if this will change anything.
What else can I try? I'm completely stuck and I really don't want to send the phone back like this, I doubt amazon is gonna be happy about it.
Specs:
N910F
Emotion Revolution 12.1 Rom
POK1 BL&CP
TWRP 2.8.7.0
Really sorry for the double-post. I'm quite desperate and need my phone for work.
Since last post I've tried flashing N910FXXU1COH4_N910FH3G1COH3_H3G.zip through Odin from SamMobile and it did the same thing with rebooting constantly.
Then I've installed Kies and went to Tools -> Firmware Upgrade and Initialisation and gave it the model and S/N and it downloaded something and everything went all right, the phone reboots and I'm back in the same circle, it just shows me the splash screen(in some video's I've seen that after this procedure they get the splash screen and then the android bot with a progress bar, I don't get that, I only get the splash screen and reboot) and reboots.
I thought this was a last resort thing? Is the phone completely dead or is there something I can try?
Again sorry for the double-post.
Update: still no progress so I've contacted Amazon and they said to send it back so hopefully this works out in the end, no matter how annoying the waiting time will be, if you do have any suggestions on what I should try please let me know as I haven't posted the phone yet.
So, I have gotten myself in a bit of a pickle I however think I can get out of it by sideloading using EXT. SD, Im not sure what to flash to solve the dillemma however. So this is the situation. I have a (had) a rooted Galaxy s4 (sgh-i337 ucufnc1) with 4.4.2 android. It had safestrap installed and back ups of everything else in sd card and other locations just in case. The phone was acting buggy, so I formatted the phone with safestrap, the problem persisted, ill get into the issue a bit further down. So I booted back into safestrap, and did a complete wipe, however my sd card must've bumped out, because it didnt delete any media files or so it said, and then after the wipe it crashed. and refuses to boot into safestrap or even past the splash logo. I can get into download mode, but usb debugging isnt on anymore since i wiped it, I can get into the other mode as well ( cant for the life of me remember the name of it atm although i use it frequently) with some luck. I also happen to have all .md5 files from a backup i did about 4 months ago in tact, I cannot for the life of me get them to convert properly to apply them to the phone without safestrap however, if anyone has any insight to this please let me know also.
I can/will list any other information I have if anyone needs it, and if anyone can help it would safe a life!
The reason i reformatted it to begin with, was because media would stall, and when i plugged in the audio jack it'd freeze the entire app using it, then the whole phone would freeze. I believe it was due to lucky patcher but im unsure. The issue began when I altered the auto update file, and even after i rectified it, it persisted. At this time i have a phone soft bricked because it didnt delete all the media files and I assume something bugged onto the kernel image but Im not sure. If I can simply try to restore it to stock kernel then im fine with that.
Ghujii said:
So, I have gotten myself in a bit of a pickle I however think I can get out of it by sideloading using EXT. SD, Im not sure what to flash to solve the dillemma however. So this is the situation. I have a (had) a rooted Galaxy s4 (sgh-i337 ucufnc1) with 4.4.2 android. It had safestrap installed and back ups of everything else in sd card and other locations just in case. The phone was acting buggy, so I formatted the phone with safestrap, the problem persisted, ill get into the issue a bit further down. So I booted back into safestrap, and did a complete wipe, however my sd card must've bumped out, because it didnt delete any media files or so it said, and then after the wipe it crashed. and refuses to boot into safestrap or even past the splash logo. I can get into download mode, but usb debugging isnt on anymore since i wiped it, I can get into the other mode as well ( cant for the life of me remember the name of it atm although i use it frequently) with some luck. I also happen to have all .md5 files from a backup i did about 4 months ago in tact, I cannot for the life of me get them to convert properly to apply them to the phone without safestrap however, if anyone has any insight to this please let me know also.
I can/will list any other information I have if anyone needs it, and if anyone can help it would safe a life!
The reason i reformatted it to begin with, was because media would stall, and when i plugged in the audio jack it'd freeze the entire app using it, then the whole phone would freeze. I believe it was due to lucky patcher but im unsure. The issue began when I altered the auto update file, and even after i rectified it, it persisted. At this time i have a phone soft bricked because it didnt delete all the media files and I assume something bugged onto the kernel image but Im not sure. If I can simply try to restore it to stock kernel then im fine with that.
Click to expand...
Click to collapse
UPDATE: I resolved the issue, by rooting, safestrapping, ripping the image files, from another galaxy s4 with alike descriptions. then i managed to side load it, then it booted properly, i then reformatted it completely back to 100% factory everything. Now my original problem persists, and i cant help feel that google services is causing it. (examnples of issues" proccess.gapps has stopped. anotrher process error code. phone calls can be made, but not recieved as it seems the server is too busy to n otice it, massive battery drain, audio takes several seconds to play, while video continues to play fine, audiojack is mostly unresponsive, phone calls that are made cannot recieve or send audio during call session, phone may freeze at unlock screen, or any time during operation, may even reboot from process overloading" now keep in mind. i removed every system file and app that the natural reformat will allow. so nothing applied by the user is on the phone, other than natural factory applications. Im digging a bit into the phone as i can but its a slow process whenit starts freezing. if anyone has any idea of what can be causing this, or how to fix this please inform me lol.
Ghujii said:
UPDATE: I resolved the issue, by rooting, safestrapping, ripping the image files, from another galaxy s4 with alike descriptions. then i managed to side load it, then it booted properly, i then reformatted it completely back to 100% factory everything. Now my original problem persists, and i cant help feel that google services is causing it. (examnples of issues" proccess.gapps has stopped. anotrher process error code. phone calls can be made, but not recieved as it seems the server is too busy to n otice it, massive battery drain, audio takes several seconds to play, while video continues to play fine, audiojack is mostly unresponsive, phone calls that are made cannot recieve or send audio during call session, phone may freeze at unlock screen, or any time during operation, may even reboot from process overloading" now keep in mind. i removed every system file and app that the natural reformat will allow. so nothing applied by the user is on the phone, other than natural factory applications. Im digging a bit into the phone as i can but its a slow process whenit starts freezing. if anyone has any idea of what can be causing this, or how to fix this please inform me lol.
Click to expand...
Click to collapse
The best solution must be installing the stock firmware via odin. Since you are on NC1 , You can installed the stock NB1.
Here is guide explaining you using odin, installing NB1, root with towel root, updated NC1, install the safestrap. The guide was not specifically written for that but you can find those steps in the guide.
I will attempt to do this, since nothing since has work. I am about to get a new logic board for the system in the next 2 weeks. Towel root DOES typically work on this system, however the last time I attmpted it it failed to work outright. Im not sure what has changed with the device, but i believe reflashing stock is the best method. The phone now, will boot up, then skip the lock screen and go straight to the home screen, which is black with no pull down bar, or with no signal and there is no way to rectify it. Even if there were, it boots back down and launches back up and becomes locked at the ATT logo.
After a fair bit of messing with it, and recovery mode it will sometimes boot normally where it tells me that processes has failed and askes me to cancel the ''app''. This is the best option to update the phone and attempt root, but getting it here is so difficult because it reboots itself and the mode is rare to acquire. This problem either is due to the kernel, or the rom i believe. I also am to believe the powercell may have some issue, as i replaced the battery a few weeks back and it worked fine for about 1 week.
Booting into safemode doesnt work either as it skips over the lock screen straight to the home screen. Outsidce of replacing the logic board, or attempting another flash im at the end of the short rope i was already on in terms of options.
sway8966 said:
The best solution must be installing the stock firmware via odin. Since you are on NC1 , You can installed the stock NB1.
Here is guide explaining you using odin, installing NB1, root with towel root, updated NC1, install the safestrap. The guide was not specifically written for that but you can find those steps in the guide.
Click to expand...
Click to collapse
UPDATE: I found therein two methods to flashback to stock. I did so, then proceeded to attempt to flash from nb1 to nj4. Progress stopped there when it flung an error 7 at me. So this means either something in my phone is corrupted or the file i downloaded from the above mentioned forum is corrupted. I also attempted flashfire, but seen as it STILL crashes at random due to process errors thats almost impossible to attempt.
Recently bought a new out-of-the box Galaxy S4 I337 from Amazon. Had i known how much trouble it would give me, i would have picked something else. When i first turned the device on, it was almost totally unusable due to lag and random reboots. Software version was 4.4.2. I used Odin to flash a rootable NB1 onto the device. Still had lag and random reboots. Upgraded to lollipop using this guide: https://forum.xda-developers.com/galaxy-s4-att/help/guide-att-samsung-galaxy-s4-sgh-i337-t3383078 and still have lag and random reboots. Also, the first time i upgraded to lollipop, i installed safestrap not knowing it wouldn't work on lollipop. Obviously, my recovery disappeared. When i figured out what was going on, i did a fresh install of lollipop. I got recovery back, but today when i tried to boot into recovery to wipe the cache, i discovered it had mysteriously stopped working again. If i attempt to boot into recovery, it just skips to the Samsung logo. I didn't install safestrap or any other custom recovery this time.
When i turn the phone on, either it hangs at the AT&T white splash logo and refuses to load at all, or advances to the lock screen. I have disabled animations and every widget i could on the lock screen and yet when i attempt to unlock the phone, it usually freezes. If i repeatedly swipe the phone for thirty seconds or so, it unlocks but it is still frozen and i have to continue swiping to prevent it from locking again. Eventually i'm able to navigate the phone normally, until it randomly reboots or freezes. Sometimes i see an error message that Touchwiz home, Process System, or SystemUI has stopped working or is not responding. This is always accompanied by a freeze. Also, choosing an option in the dialogue that comes up when i press the power button (shut down, reboot, etc) invariably causes the device to soft reboot. Other times a soft reboot happens totally at random, even if i'm not doing anything. Anybody have any idea what's going on or did Amazon just sell me a dud? All of these issues have been happening since before i rooted the device or upgraded it, except for the disappearing recovery mode.
Thanks in advance for your help.
Sounds like a data factory reset is in order. First you need recovery back so I would odin the latest firmware for the phone that can be flashed in odin. If it's still messing up then get Amazon to replace it.
Since you have safe strap though, try booting a TW based rom like Thor ROM or Golden eye ROM. That may fix some things.
StoneyJSG said:
Sounds like a data factory reset is in order. First you need recovery back so I would odin the latest firmware for the phone that can be flashed in odin. If it's still messing up then get Amazon to replace it.
Since you have safe strap though, try booting a TW based rom like Thor ROM or Golden eye ROM. That may fix some things.
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Click to collapse
Just wanted to bump this to thank you for your reply. Never got the phone to work but i was able to get it back to stock and return it. I got a refurbished S5 instead.