I just installed the bump'd TWRP and CM12 on my G3. I'm trying to encrypt it, since I need it that way for my work email/calendar, but I'm running into a problem with it.
I charge the phone fully and plug it in as required, then go to Settings/Security/Encrypt Phone. I enter my PIN and start the process, but all it does is flash the green android on a black background with what looks like a gear in the middle of it, then goes straight to the Cyanogen boot splash screen, where it sticks until I pull the battery to restart it.
Has anyone else had this problem? Or, does anyone have an idea of what I might be able to try?
jtguf87 said:
I just installed the bump'd TWRP and CM12 on my G3. I'm trying to encrypt it, since I need it that way for my work email/calendar, but I'm running into a problem with it.
I charge the phone fully and plug it in as required, then go to Settings/Security/Encrypt Phone. I enter my PIN and start the process, but all it does is flash the green android on a black background with what looks like a gear in the middle of it, then goes straight to the Cyanogen boot splash screen, where it sticks until I pull the battery to restart it.
Has anyone else had this problem? Or, does anyone have an idea of what I might be able to try?
Click to expand...
Click to collapse
I am having the same problem. Unfortunately, I have not gotten any answer. Sorry I couldn't help, but at least we're not alone.
same here, have had same issue with multiple dailies. do you think this is with twrp or cm12?
I've managed, with the latest CM12.1, to encrypt my LG G3 (d855)....However...TWRP cannot decrypt the partitions so you cannot flash anymore updates until TWRP is updated....
Shakinghead said:
I've managed, with the latest CM12.1, to encrypt my LG G3 (d855)....However...TWRP cannot decrypt the partitions so you cannot flash anymore updates until TWRP is updated....
Click to expand...
Click to collapse
How did you do it? I've tried to encrypt with 27/08/2015 nightly and I couldn't. It said encryption failed and I had to wipe it.
I'm using the 26/08 (UK date format) build - This is the one that broke Chrome. I just encrypted the phone using the settings. I've been trying every couple of weeks for sometime. In the past I get the CM logo and nothing happens. If I remove the battery then the phone boots OK...so clearly the encryption hadn't started. This time I left it and walked away. 30 mins later I went back to the phone and it was prompting for the encryption password after boot....So all good for me....except TWRP cannot decrypt the encrypted partitions...
I am using the D855 model.
I'm having similar issues. I was able to encrypt after installing the Resurrection Remix v5.5.5 but now TWRP shows internal storage as 0mb and throws out a bunch of mount errors. So can't backup or load anything new through TWRP now.
The only way I was able to change ROMs was to flash the stock ROM through the LG flashtool, thereby unrooting the phone and then starting the whole process from scratch. It's a big pain because everytime I do that I need to get admin approval to setup my work email and then need to encrypt again , which locks me into the existing ROM again!
Ughh!! Can't wait for a solution top this problem.
Related
I'm having one hell of a time with this tablet. This is pushing a month and I'm still not satisfied with my tablet.
Tonight I finally tracked down what I had hoped was a stock firmware for my tablet. Halfway through the download it timed out and when I went to download it again, the same thing happened.
So I tried to take my tablet that isn't "properly rooted" anymore and use Odin 9, instead of Odin 10, and place kitkat on my device rather than be stuck with Lollipop 5.0.2. All of this because The Sims Freeplay app isn't working and I can't find another soul on the face of the earth who can give me an answer to why this is happening.
Now I'm stuck on the samsung logo. I managed to get it back in download mode and that's where I flashed Lollipop 5.0.2 through Odin 10. I figured that would solve my problem. It didn't, but at least I got TWRP back on my device.
I never recovered anything that came with my tablet. I did not think I'd ever go back to unroot nor did I know how to back it up in the first place. So there's nothing in my recovery I can boot from. So what I did was I came back here and I downloaded the recovery for TWRP. I flashed it from my SD card, it told me it was successful... now what? I've rebooted and my device still loads to the samsung logo...and just stays there. The little confetti animation happens behind the logo, but that's it. It doesn't turn off. It doesn't reset itself.
CAN SOMEONE PLEASE TELL ME WHAT I'M DOING WRONG?!
I've already voided the warranty on this device and I regret almost daily that I decided to root in the first place. I say this only because I think rooted devices are top-notch, but I haven't been having very much luck with them. It took me a week to root. When I finally rooted then my favorite app game stopped working. Then I figured I could flash the stock firmware easily (but it seems like every place I go to find kitkat or even stock lollipop I can't find or I do, but files are corrupt or sites are full of ads).
I can't use my device at all now except click around in TWRP which isn't doing me any good.
I just want my tablet back. I spent 500 dollars on this thing and I haven't had time to even enjoy it. It's only two months old.
Please. Again. Someone HELP me. I want to figure this out and I don't want to accept that I bricked my device because I've watched plenty of videos on youtube and people are stuck with a phone that's resetting and all they do is fix it right there in front of my eyes.
Why can't I fix this? What is it that I'm not doing properly?
geekery15 said:
I'm having one hell of a time with this tablet. This is pushing a month and I'm still not satisfied with my tablet.
Tonight I finally tracked down what I had hoped was a stock firmware for my tablet. Halfway through the download it timed out and when I went to download it again, the same thing happened.
So I tried to take my tablet that isn't "properly rooted" anymore and use Odin 9, instead of Odin 10, and place kitkat on my device rather than be stuck with Lollipop 5.0.2. All of this because The Sims Freeplay app isn't working and I can't find another soul on the face of the earth who can give me an answer to why this is happening.
Now I'm stuck on the samsung logo. I managed to get it back in download mode and that's where I flashed Lollipop 5.0.2 through Odin 10. I figured that would solve my problem. It didn't, but at least I got TWRP back on my device.
I never recovered anything that came with my tablet. I did not think I'd ever go back to unroot nor did I know how to back it up in the first place. So there's nothing in my recovery I can boot from. So what I did was I came back here and I downloaded the recovery for TWRP. I flashed it from my SD card, it told me it was successful... now what? I've rebooted and my device still loads to the samsung logo...and just stays there. The little confetti animation happens behind the logo, but that's it. It doesn't turn off. It doesn't reset itself.
CAN SOMEONE PLEASE TELL ME WHAT I'M DOING WRONG?!
I've already voided the warranty on this device and I regret almost daily that I decided to root in the first place. I say this only because I think rooted devices are top-notch, but I haven't been having very much luck with them. It took me a week to root. When I finally rooted then my favorite app game stopped working. Then I figured I could flash the stock firmware easily (but it seems like every place I go to find kitkat or even stock lollipop I can't find or I do, but files are corrupt or sites are full of ads).
I can't use my device at all now except click around in TWRP which isn't doing me any good.
I just want my tablet back. I spent 500 dollars on this thing and I haven't had time to even enjoy it. It's only two months old.
Please. Again. Someone HELP me. I want to figure this out and I don't want to accept that I bricked my device because I've watched plenty of videos on youtube and people are stuck with a phone that's resetting and all they do is fix it right there in front of my eyes.
Why can't I fix this? What is it that I'm not doing properly?
Click to expand...
Click to collapse
I just skimmed through all this reading, so I may have missed a few things. The thing I didn't see if factory resetting. You need to factory reset in twrp. Just go to wipe and factory reset. Now reboot and wait at least 20 minutes as it does take quite a while to boot.
If doesnt do, transfer a custom stock based ROM for your device (any KK ROM should do) to your SD card. Factory reset in twrp and flash ROM. Now reboot and wait.
Typically, flashing with Odin takes 20 minutes to boot up for the first time. Just be sure you factory reset.
Sent from my SM-T800 using Tapatalk
DUHAsianSKILLZ said:
I just skimmed through all this reading, so I may have missed a few things. The thing I didn't see if factory resetting. You need to factory reset in twrp. Just go to wipe and factory reset. Now reboot and wait at least 20 minutes as it does take quite a while to boot.
If doesnt do, transfer a custom stock based ROM for your device (any KK ROM should do) to your SD card. Factory reset in twrp and flash ROM. Now reboot and wait.
Typically, flashing with Odin takes 20 minutes to boot up for the first time. Just be sure you factory reset.
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
Ok. I just factory resetted. Then I went to reboot and clicked "system". Now it restarted and brought me back to the same samsung logo... do I wait 20 minutes on that screen?
geekery15 said:
Ok. I just factory resetted. Then I went to reboot and clicked "system". Now it restarted and brought me back to the same samsung logo... do I wait 20 minutes on that screen?
Click to expand...
Click to collapse
Yep.
Sent from my SM-T800 using Tapatalk
DUHAsianSKILLZ said:
Yep.
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
By any chance does it take longer than 20 minutes?
It's been 28 minutes and I'm still on the Samsung logo.
geekery15 said:
By any chance does it take longer than 20 minutes?
It's been 28 minutes and I'm still on the Samsung logo.
Click to expand...
Click to collapse
Sometimes. Try and wait 10 more minutes.
If it doesn't boot, I think you may have to flash a custom stock based ROM and flash it from your SD card in twrp.
Sent from my SM-T800 using Tapatalk
DUHAsianSKILLZ said:
Sometimes. Try and wait 10 more minutes.
If it doesn't boot, I think you may have to flash a custom stock based ROM and flash it from your SD card in twrp.
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
Custom Stock Based Rom? Does that mean I'll push myself further away from a stock firmware? Also... where do I find one and are there instructions for it? I thought roms were firmwares up until like 4 hours ago and I've been reading of roots for a little over a month now.
I see you've got the same tablet. By any chance are you running 5.0.2 lollipop and do you happen to know having a rooted device is the reason why The Sims Freeplay won't get past it's splash screen or if it's the app itself and it's newest update that made it wiggy?
I'll flash whatever at this point, but my main reasons for continuing to mess with my tablet was because of not being able to play the sims on there. Every other game I play works.
geekery15 said:
Custom Stock Based Rom? Does that mean I'll push myself further away from a stock firmware? Also... where do I find one and are there instructions for it? I thought roms were firmwares up until like 4 hours ago and I've been reading of roots for a little over a month now.
I see you've got the same tablet. By any chance are you running 5.0.2 lollipop and do you happen to know having a rooted device is the reason why The Sims Freeplay won't get past it's splash screen or if it's the app itself and it's newest update that made it wiggy?
I'll flash whatever at this point, but my main reasons for continuing to mess with my tablet was because of not being able to play the sims on there. Every other game I play works.
Click to expand...
Click to collapse
The only thing I can suggest is download this to your SD card and flash it in twrp. http://forum.xda-developers.com/showthread.php?p=56345482
The Sims may not work because its uncomptiple with lollipop.
Simply, hit wipe in twrp, hit advanced wipe, and tick system, dalivk and cache. Then go back and install the Cm11 zip and reboot. Hopefully it gets you booting
Sent from my SM-T800 using Tapatalk
I'd actually flash this as its more like stock just debloated.
http://forum.xda-developers.com/galaxy-tab-s/development/prerooted-stock-touchwiz-rom-t2973107
You need to wipe system, dalvik, cache and data then Install via twrp.
Wait at least 10 to 15 mins after install for initial boot up.
For future reference whenever you go back to kitkat from lollipop you need to wipe the data and cache partition first.
By the way some apps and games do not work on rooted devices for security reasons.
DUHAsianSKILLZ said:
Yep.
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
DUHAsianSKILLZ said:
Sometimes. Try and wait 10 more minutes.
If it doesn't boot, I think you may have to flash a custom stock based ROM and flash it from your SD card in twrp.
Sent from my SM-T800 using Tapatalk
Click to expand...
Click to collapse
ashyx said:
I'd actually flash this as its more like stock just debloated.
http://forum.xda-developers.com/galaxy-tab-s/development/prerooted-stock-touchwiz-rom-t2973107
You need to wipe system, dalvik, cache and data then Install via twrp.
Wait at least 10 to 15 mins after install for initial boot up.
For future reference whenever you go back to kitkat from lollipop you need to wipe the data and cache partition first.
By the way some apps and games do not work on rooted devices for security reasons.
Click to expand...
Click to collapse
I understand that. That is why I clicked unroot in supersu and tried the game app, but it still wouldn't work. On my galaxy note 3 I run 5.0 lollipop and my game works fine. My phone isn't rooted and I never decided to root it and then unroot it.
Is an app smart enough to know when a device has been rooted and if are those that hack their actual game on rooted devices uses cloak or xposed or both to by pass their root?
I rather be unrooted for the sake of the game, but how does one find the stock firmware? Or is it not possible at this point?
Sorry for any confusion.
ashyx said:
I'd actually flash this as its more like stock just debloated.
http://forum.xda-developers.com/galaxy-tab-s/development/prerooted-stock-touchwiz-rom-t2973107
You need to wipe system, dalvik, cache and data then Install via twrp.
Wait at least 10 to 15 mins after install for initial boot up.
For future reference whenever you go back to kitkat from lollipop you need to wipe the data and cache partition first.
By the way some apps and games do not work on rooted devices for security reasons.
Click to expand...
Click to collapse
Okay. I installed or flashed ironrom to my tablet from twrp. i followed the directions it told me and I decided to pick the regular rom above the custom one that was close to stock. Then it told me that it was going to reboot; which it did. When it came back it got stuck on the same samsung loading screen so I powered it off, went back into TWRP (because powering off now isn't possible, more like restart) and I went to "Reboot " and then I clicked "power off".
I guess I'll be waiting for 10 to 15 minutes.
I Pray I did this correctly.
geekery15 said:
Okay. I installed or flashed ironrom to my tablet from twrp. i followed the directions it told me and I decided to pick the regular rom above the custom one that was close to stock. Then it told me that it was going to reboot; which it did. When it came back it got stuck on the same samsung loading screen so I powered it off, went back into TWRP (because powering off now isn't possible, more like restart) and I went to "Reboot " and then I clicked "power off".
I guess I'll be waiting for 10 to 15 minutes.
I Pray I did this correctly.
Click to expand...
Click to collapse
Thanks for all the help! I'm finally back to where I want to be and the ss freeplay seems to be working. I can't thank you both enough.
geekery15 said:
Thanks for all the help! I'm finally back to where I want to be and the ss freeplay seems to be working. I can't thank you both enough.
Click to expand...
Click to collapse
Why did you reboot back into twrp? You should have just let it do its thing after it rebooted.
So for any others that may happen upon this thread.
What was your solution?
ashyx said:
Why did you reboot back into twrp? You should have just let it do its thing after it rebooted.
So for any others that may happen upon this thread.
What was your solution?
Click to expand...
Click to collapse
I did because I thought it had to be shut down before I powered it on and waited. I realized afterwards that you probably meant to just let it sit for 10 to 15 minutes.
Are you asking me my solution or other peoples solution?
geekery15 said:
Are you asking me my solution or other peoples solution?
Click to expand...
Click to collapse
Your solution.
cant reboot after failed encryption
I was trying to encrypt my galaxy tab s, which is rooted and has lollipop 5.0. Afrer reading encryption failed. I tried to reboot in recovery via twrp. My device doesn't reboot, it just acts like its going thru the motions. Only to return to twrp recovery menu. How do I reboot the system clearing the failed encryptions. I am a noob and any suggestions would be much appreciated.
You will have to go into recovery and wipe the data and cache partition then reboot.
It may take a while to boot up after that.
Well I thought my solution was using IronRom... but i'm not too sure now.
I just got back from work and I went to turn on my tablet and it took me to the same loading screen and then after about 5 minutes it tells me that the system can't respond. It asks me to click "ok" or "wait" ... clicking either just turns my tablet off.
Now the screen has dimmed. It's turning on when it wants and sometimes it'll show me the time in the upper right hand corner, but it won't let me do anything because it's a black screen.
What does all of this mean?
I just noticed if I click the "power button" it just flashes my tablet desktop then goes back to black, but it shows me the battery percentage and the time in the upper right hand corner...
smt 800 stuck in logo
SAMSUNG GALAXY TAB S 10.5 WIFI WHAT IT CAN AND CANT DO
i HAD ROOTED AND INSTALLED LOLLIPOP 5.0 WITH SUPER SU AND TWRP RECOVERY.
I THEN TRIED TO ENCRYPT WHICH FAILED.
MY DEVICE SAID TO REBOOT SYSTEM AND THEN TRY TO ENCRYPT AGAIN. AFTER REBOOTING, MY DEVICE IS STUCK WITH (logo screen)THE SAMSUNG TAB S NAME AT THE TOP OF THE SCREEN AND ANDROID ON THE BOTTOM. I then rerooted with cf auto root thru odin. Odin and my tablet went thru the motions. When everything was complete and device should have initialize, but didn't. This part of the process didn't happen.
I am able to go into DOWNLOAD MODE and can get to manual mode, but I seem to have lost recovery. Here is the info.
android system recovery <3e>
kot49h_t800xxu1af8..
the binary reads: samsung official
system status: custom
Do you have any suggestions.
My G3 randomly decided to get the green screen of death after I plugged it into my pc to charge it. Now it cycles to the TZ Crash! Green screen no matter what I do.
The only way for me to get the phone to boot up for approximately 10 seconds is to put it in the freezer for about hour or so and for some reason it will boot up and crash after that time.
I could care less about the phone but would really like to recover my information and pictures from the device but as soon as I try and transfer them it crashes and Green Screens again.
Is there ANY way to temporarily get it to work or a way to pull my info off from it?
I am rooted on Cloudy G3 Kitkat at the moment. Maybe I can get into a recovery?
Any help is appreciated, thanks!
I would suggest you to switch to latest Marshmallow firmware.
I've read about many KitKat users that got the green death screen, so upgrade may be resolutive.
Look for latest firmware: go to http://devtester.ro/projects/lg-firmwares/download.php#imei, you simply have to type your IMEI code and proceed to download the proper Kdz file.
Then flash it with LGUP (http://forum.xda-developers.com/showpost.php?p=64624353&postcount=3) and remember to do a full wipe (procedure should be explained in the thread).
Now install and run KingRoot (http://forum.xda-developers.com/devdb/project/?id=9793#downloads), then run Autorec (https://www.androidfilehost.com/?fid=24352994023705527) and finally uninstall the same KingRoot app (it's no longer needed).
Since CloudyG3 is no longer supported, you have to reboot in recovery and flash latest Fulmics Rom (v5.3, http://www.fulmics.com/rom-g3/).
After doing that, tell me if you solve
If you have a custom recovery installed, data backup will be easy. For instance, while in TWRP, simply plug in your phone to your computer and you have access to the files on the internal and SD Card storages. If you want more than that, simply mount the desired partitions.
If you do not have a custom recovery installed, you could use ADB but that could be difficult/tedious if you are not familiar with linux commands... or ADB for that matter.
As for the crashing, just flash a different ROM. Make sure you do a semi-clean flash and wipe only the System partition before doing so. That may also solve any data backing up probs you may have. If flashing a diff ROM doesn't work, you may have to resort to using the LG flash tool to go back to stock. But, of course, that would wipe everything on the phone.
Good luck!
Thanks for the replies guys. I flashed it to stock kdz and it appears to still be broken. My thoughts are that the logic board is toast. Only short term resolution was placing it in the freezer for a few hours. This gave me about 5 minutes of use before it crashed again. Just enough time to transfer my pictures off from the internal sd card. Hopefully this helps others with the green screen crash issues in recovering some of their data.
Hi.
I have a problem with my D855. My phone is rooted and runs the fulmics ROM. Everything was working fine, , on Fulmics 5.3, except than one day, I was using my phone normally and then it crashed. I saw the phone rebooting, but for some reason it got stuck. The phone tried to boot unsuccessfully until the "firmware update" went through, after what it reboots again (unsuccessfully) and so on.
At that time, I was able to access twrp, do some backup, and flash properly with a downgraded version of fulmics (from 5.3 to 4.1).
It was able to boot again and use my phone like before. Yet, after one month of usage, the same problem happened on version 4.1. The phone crashed and now cannot boot.
Any idea of where it is coming from? Should I go back to stock? Should I contact customer service?
What did you do before the phone crashes ?
I think you probably should flash the stock ROM and wait for an other crash... or not.
Jb-kun said:
What did you do before the phone crashes ?
I think you probably should flash the stock ROM and wait for an other crash... or not.
Click to expand...
Click to collapse
I haven't done anything special. I think that the first time I was playing on candy crush. The second time I was just looking at pictures in my gallery.
I was using the ROM without any tweaks or extra modules such as Xposed. Just regular use.
Update on my situation: I switched back to stock ROM and it seems to work OK for now (it has been 4 days). So I will wait and see if new problems happen. By the way, it was extremely difficult for me to get back to Stock directly from fulmics ROM. I tried several methods that I have found on xda based on LGUP or LG Flash tool without success. For some reason I was not able to connect the phone to my PC in download mode.
The only way that I found was to use a nandroid backup that I did just after rooting the phone and that was based on stock ROM.
shewshain said:
I haven't done anything special. I think that the first time I was playing on candy crush. The second time I was just looking at pictures in my gallery.
I was using the ROM without any tweaks or extra modules such as Xposed. Just regular use.
Update on my situation: I switched back to stock ROM and it seems to work OK for now (it has been 4 days). So I will wait and see if new problems happen. By the way, it was extremely difficult for me to get back to Stock directly from fulmics ROM. I tried several methods that I have found on xda based on LGUP or LG Flash tool without success. For some reason I was not able to connect the phone to my PC in download mode.
The only way that I found was to use a nandroid backup that I did just after rooting the phone and that was based on stock ROM.
Click to expand...
Click to collapse
You can also use the Stock rom flashable from twrp. So you can wipe the system partition and get a "better situation" than a nandroid backup that should be with an old version.
Or use this that has also root and other improvements.
shewshain said:
Hi.
I have a problem with my D855. My phone is rooted and runs the fulmics ROM. Everything was working fine, , on Fulmics 5.3, except than one day, I was using my phone normally and then it crashed. I saw the phone rebooting, but for some reason it got stuck. The phone tried to boot unsuccessfully until the "firmware update" went through, after what it reboots again (unsuccessfully) and so on.
At that time, I was able to access twrp, do some backup, and flash properly with a downgraded version of fulmics (from 5.3 to 4.1).
It was able to boot again and use my phone like before. Yet, after one month of usage, the same problem happened on version 4.1. The phone crashed and now cannot boot.
Any idea of where it is coming from? Should I go back to stock? Should I contact customer service?
Click to expand...
Click to collapse
Same problem here. Normal usage suddenly started to reboot and now it's stuck in boot loop
Coming from Fulmics too - stopped working one fine day.
Now, continues to boot-loop at the initial LG screen. Trying to get into the recovery shows me the the 'Factory Reset' screen, but beyond that leads to boot-loops again. Even the Download mode loops!
I'm at my wits end without a solution in sight.
Blysterk said:
You can also use the Stock rom flashable from twrp. So you can wipe the system partition and get a "better situation" than a nandroid backup that should be with an old version.
Or use this that has also root and other improvements.
Click to expand...
Click to collapse
Thank you for this advice. I was able to update my stock ROM after the Nandroid backup through LGUP, but your method would have been faster.
But anyway, I am waiting to see if I am stuck with bootloops again, using non-root stock version, so I can send it to customer service if this happen again.
AhmadAlmousa said:
Same problem here. Normal usage suddenly started to reboot and now it's stuck in boot loop
Click to expand...
Click to collapse
abourdeau said:
I have the exact same problem, I even bought a second battery with no success.
Click to expand...
Click to collapse
Are you using Fulmics ROM as well? Can you have access to TWRP? I was able to connect to a PC in the recovery mode and to transfer files before flashing, in case you need some basic backup...
prakhargr8 said:
Coming from Fulmics too - stopped working one fine day.
Now, continues to boot-loop at the initial LG screen. Trying to get into the recovery shows me the the 'Factory Reset' screen, but beyond that leads to boot-loops again. Even the Download mode loops!
I'm at my wits end without a solution in sight.
Click to expand...
Click to collapse
Silly question, but are you sure that you selected "Yes" when the screen asks you about factory reset? you have to press "volume down" and the "power button", since the default answer is no.
shewshain said:
Silly question, but are you sure that you selected "Yes" when the screen asks you about factory reset? you have to press "volume down" and the "power button", since the default answer is no.
Click to expand...
Click to collapse
Yes, of course I was able to access TWRP successfully earlier.
Curiously enough, the phone boot-loops in regular startup, Download mode and trying to get to recovery. However, it doesn't restart itself and fall into a loop, while on the Factory Reset menu. Am I correct in assuming that the battery could not be the root cause of the overall problem? Because if it was, it would likely loop even on this Factory Reset menu as well as far as I understand.
Unfortunately, the phone restarts as soon as it lands in the Download mode so I cannot even restore to stock.
EDIT: Okay, weirdly enough it just booted and reached the homescreen before restarting again. What I did was let it charge to a 100% and tried booting while plugged in. Could it be the battery after all? Though this exact set of steps hasn't been helpful before.
Hi,
I think I have the bootloop issue. I was running purenexus marshamellow.
At first, I couldn't get past boot after many attempts,phone kept going dark. I wasn't even able to boot into bootloader. So, I removed the sim card to put in a backup phone. The next day I went to work on the phone to see what was wrong with it. Amazingly it booted up. So I connected to adb and downloaded all my personal media (adb pull). At that point I have never read about the bootloop issue, phone has been solid for a while and I don't keep up with the news. So then I decided to do a clean flash of purenexus. I noticed Nougate is available and decided to go with that.
For the most part, I can boot into bootloader without any problems now. So I flashed, the bootloader, the vendor image and radio. I went to reboot into TWRP and I got the bootloop issue. So I decided to flash the latest TWRP. Then I was able to boot into TWRP. I was able to wipe the cache/data. However, when I went to install purenexus, it would freeze and reboot. At that point I realized something is wrong and I came here. I read about the bootloop issue. So now I am wondering if I have that issue? I'm pretty certain I do, except that I can reliably boot into the bootloader. TWRP and android itself will cause reboots, but not the bootloader.
So should I send in the phone to get replaced? Or is there anything else I should try?
Also, I am halfway done towards installing purenexus, is there a way for me install in the bootloader without having to go into twrp?
Hello everyone,
yesterday I flashed a new Cyanogenmod 14 nightly (12062016) for my G4 from earlier nightly in TWRP. After reboot the phone keeps going back to TWRP and I can't seem to get it to boot to system..
I tried factory reset, reflashing back to old nightly, flashing stock.. but nothing seems to work.
Also tried doing this in the TWRP terminal:
dd[space]if=/dev/zero[space]of=/dev/block/platform/f9824900.sdhci/by-name/fota
Didn't fix the loop, I guess because it wasn't the OTA update that caused the problem in the first place.
If anyone has an idea, I would greatly appreciate the help!
Thanks.
If you can reach download mode you could try reflashing back to stock then starting again.....Hope you get yours fixed - Sorry to say this but mine did a very similar thing only 24 hours before you posted!!! Only mine was on stock FW and was in use at the time - I've now had to swap it as valuebasket who sold me the phone have ceased trading. If yours is a UK model you may be able to get it replaced under warranty - believe that LG guarantee their phones for 2 years and a ruling by the European court said that flashing a custom rom doesn't invalidate any warranties.
I have the same exact issue, I also flashed the latest CM14 nightly and cannot get the device to boot any rom.
I have even tried flashing stock rom but I get the same problem.
From what I have read, the bootloop issue happens once the device boots but I don't seem to be getting that far.
Any ideas?
Ran into the same problem 3 days ago. This is the first time I have encountered a non-revertible issue in 3 years as a cyanogenmod user. This changes my opinion on how safe it is to make use of a custom ROM. I tried to wipe everything, reinstall TWRP, change TWRP with another recovery, reinstall a safe NAND backup of mine.....nothing.....it went into boot loop. Before I read this post, I was convinced my phone encountered the infamous G4 bootloop problem.....now I see there are other examples, so it shouldn't be the case. Long story short, I had to check my device in at the LG assistance, with 25 days as time forecast.
The guilty nightly was 20161205.
I have never seen anything like this...
This has solved it for me - I installed LG Bridge and flashed the factory firmware using the tool. Now it seems I'm back on stock but at least it's working.
got mine working. I had to install LGUP and flash stock ROM. Once flashed I installed CM14 and I am back up and running again.
I tried LGUP but it could not recognize the device while this was looping.....a bad experience......
I have the same issue. My phone was updated to 20i via the original stock firmware, then I put twrp 3.0.2-0 and cyanogenmod on. I did a cyanogenmod update from within cyanogenmod, which just booted into twrp, then I manually installed the update zip that cyanogenmod had downloaded, then it always boots into twrp. I wonder if initiating the update from within cyanogenmod was the cause. The phone is not detected by LGUP or LG Bridge. I've tried this on a win10 machine, and a win7 vm from linux. I have access to twrp, and download mode by doing the reboot into bootloader from within twrp.
If those people who have fixed this could give more details about how they did it, that would be good. What exact steps did you take? What stock firmware version did you have before installing a custom rom? What OS version were you using? What twrp version?
Well. Mine got stuck in bootloop for the second time today. What is going on? In between the two bootloops I had one good update with CM. Using TWRP 3.0.2.1. Steps to reproduce failure: updating CM from within CM, it autoreboots into TWRP and after that nothing happends, no autoinstall. Then after a manual install of the new CM the bootloop starts.
Resolve the problem:
* Install LGUP 8994 DLL Ver 0 0 3 23, Install LGUP Install Ver 1 14, get the latest KDZ
* Get the phone into download mode with usb cable and after that in firmware update mode
* Startup LGUP and choose refurbish and select the kdz file.
* After that you can boot into your stock LG firmware again, reinstall TWRP an CM. If you want so.
Read that it is advised to manual update cm from within TWRP. TWRP will get an update in the future to solve this bootloop problem.
iankelling said:
I have the same issue. My phone was updated to 20i via the original stock firmware, then I put twrp 3.0.2-0 and cyanogenmod on. After a cyanogenmod update, it always boots into twrp. The phone is not detected by LGUP or LG Bridge. I've tried this on a win10 machine, and a win7 vm from linux. I have access to twrp, and download mode by doing the reboot into bootloader from within twrp.
If those people who have fixed this could give more details about how they did it, that would be good. What exact steps did you take? What stock firmware version did you have before installing a custom rom? What OS version were you using? What twrp version?
Click to expand...
Click to collapse
I second that. Same issue and neither LG Up nor LG Bridge will recognize my device. Looking in device manager there are no serial interfaces. Do I need a special driver that provides a com port for a phone in recovery or fastboot mode?
---Edith 2016-12-12: Found a solution for my issue:
The phone has to be in _download_ mode, not in recovery or fastboot. After realizing that I have to boot the phone in a different manner, it will be recognized by LG UP.
Here is how to boot the pone in download-mode:
- Power off your LG device.
- Press and hold Volume Up button.
- Connect your device to PC with a USB cable while holding the Volume Up button.
- You’ll boot into download mode with “Firmware Update” written on top of the screen.
Now everything is fine again.
croclacrimae said:
Hello everyone,
yesterday I flashed a new Cyanogenmod 14 nightly (12062016) for my G4 from earlier nightly in TWRP. After reboot the phone keeps going back to TWRP and I can't seem to get it to boot to system..
I tried factory reset, reflashing back to old nightly, flashing stock.. but nothing seems to work.
Also tried doing this in the TWRP terminal:
dd[space]if=/dev/zero[space]of=/dev/block/platform/f9824900.sdhci/by-name/fota
Didn't fix the loop, I guess because it wasn't the OTA update that caused the problem in the first place.
If anyone has an idea, I would greatly appreciate the help!
Thanks.
Click to expand...
Click to collapse
I was able to get out of that by also wiping by-name/misc. Don't do that, though, because then your wifi mac address will get messed up and you'll spend all day looking for a permanent fix for that.
I suggest reflashing a stock KDZ using LGUP, as others have said. You can get the usb drivers from LG Bridge.
I will release a fix for that soon. Check the twrp thread for updates on this.
Hi
I also have this problem
I installed cm-14.1-20161201-NIGHTLY-h815 successfully and was running it for almost 2 weeks without issues, today I updated to cm-14.1-20161213-NIGHTLY-h815 from cmupdater and I have been ending up in recovery every time I rebooted.
I tried flashing the latest cm recovery and reflashing the rom, with full wipes but no luck.
Full steps of recovering would be appreciated (for example, there are comments about flashing the latest stock rom, but a link to this rom would be helpful)
Thanks
Good news regarding this:
http://forum.xda-developers.com/showpost.php?p=70082901&postcount=213
The above will fix TWRP bootloop issues as well and I also released a first h811 version which should allow installing CM etc as it should.
Keep in mind that this is a BETA and not an official TWRP release.
Please report back in the above thread!
.
Does your twrp beta really fix the boot loop even it is already happening. What do I have to wipe? I have not managed to get out of the boot loop despite intalling it.
Is using using LG Up to flash to the stock rom really the only option?
Edited 2017-01-25 2:45 pm:
Well, sometimes you just have to be patient. Powered down the phone and when th H815 restarted CM did boot. Great. :good:
Hey, I just want to share a small detail, possibly a fluke that helped me overcome the bootloop.
So...I started with a fresh, stock H815, I don't quite remember the firmware version..it was something like version "20g"..
OK, I looked up several guides and tried to get the newest stable versions of each tool. I went through with the official bootloader unlock, then moved on to rooting: Kingroot didn't work for me so I went on installing twrp in fastboot mode so I could afterwards install supersu and root.
I got there eventually but first I was stuck in bootloop - kept ending up in twrp interface. I found the 2 dd commands but those didn't work for me as the msm_sdcc folder did not exist, but instead there was a "f9824900.sdhci". Tried to overwrite this one ...but as others have stated as well, it didn't work.
At that point, I had nothing to lose, I was starting to accept that I had soft-bricked my precious G4 so..I went on installing the DU 10.6 7.1.1 rom and the stock gapps, wiped dalvik, rebooted and held my breath...not literally
About 12 minutes later, after an endless red, spinning logo, my shiny ping pong paddle showed me a different screen, a fresh start welcome screen .
Almost 24h / 10-12 reboots (twrp included) / 70+ apps installed and removed later, the new OS holds around 2G ram average, a bit better battery life, smoother transitions, flawless navigation, flush streaming over both 3G/LTE & 2.4/5 G wifi.
FYI the reboots were intended, wanted to see consistency in boots - we're in the green . Now testing long term stability with moderate/high usage.
There is 1 aspect I noticed, there are a couple of contexts when the interface burps (several menus, various situations, never in apps) and resets back to homescreen...but I think that's more of a launcher topic than an OS one.
Other than that, so far I'm happy with the mod.
Hope my experience helps others that might be in the same spot I was or at lest boosts their confidence to try out a decent idea they might be pondering.