[HELP] Strange bootloop on Stock Nougat :( - LG G5 Questions & Answers

Yesterday I was quietly watching youtube, i got the 15% battery warning, i touched ok and kept watching until my phone suddenly crashed. I got not battery empty warning and proper shut down..
I plugged in and saw I had 5% battery.
But now it isn't booting... After the splash screen, it loads for some minutes on the LG Logo, and then I see the white "Android is starting" screen. the percentage always starts from 48%. when that's over it goes back to the LG boot animation and comes back again to "Android is starting" screen.
I tried to reflash my Nougat kdz w/ uppercut (LG UP), but it is still not working.
I tried to do a factory reset (power + vol down), but i can't even format my phone! I see a short "erasing" screen for 1 sec and boots again to the LG Logo.
I suspect that my motherboard fried... Can anyone help me?
I'm not rooted nor have unlocked bootloader whatsoever.

WIIstpM said:
Yesterday I was quietly watching youtube, i got the 15% battery warning, i touched ok and kept watching until my phone suddenly crashed. I got not battery empty warning and proper shut down..
I plugged in and saw I had 5% battery.
But now it isn't booting... After the splash screen, it loads for some minutes on the LG Logo, and then I see the white "Android is starting" screen. the percentage always starts from 48%. when that's over it goes back to the LG boot animation and comes back again to "Android is starting" screen.
I tried to reflash my Nougat kdz w/ uppercut (LG UP), but it is still not working.
I tried to do a factory reset (power + vol down), but i can't even format my phone! I see a short "erasing" screen for 1 sec and boots again to the LG Logo.
I suspect that my motherboard fried... Can anyone help me?
I'm not rooted nor have unlocked bootloader whatsoever.
Click to expand...
Click to collapse
When you tried lgup, what happend? Errors? Etc?
Sent from my LGE LG-H830 using XDA Labs

Nick216ohio said:
When you tried lgup, what happend? Errors? Etc?
Sent from my LGE LG-H830 using XDA Labs
Click to expand...
Click to collapse
nope it flashed successfully, no errors at all, but still, not booting.
i suspect it's a hardware defect somewhere, or the motherboard going nuts.
I want to be able to recover all my data on internal storage at least...

WIIstpM said:
nope it flashed successfully, no errors at all, but still, not booting.
i suspect it's a hardware defect somewhere, or the motherboard going nuts.
I want to be able to recover all my data on internal storage at least...
Click to expand...
Click to collapse
Doubt it matter but for ****s and giggles you try other versions of kdz? Could be hardware as you said. I remember reading somewhere someone having similar problem. The guy tried different battery and for whatever reason it worked. If I was you I'd just ship the paper weight to lg.
Far as your internal data, it's probably screwed sadly. Cloud backup every phone you get my friend!
Sent from my LGE LG-H830 using XDA Labs

Nick216ohio said:
Doubt it matter but for ****s and giggles you try other versions of kdz? Could be hardware as you said. I remember reading somewhere someone having similar problem. The guy tried different battery and for whatever reason it worked. If I was you I'd just ship the paper weight to lg.
Far as your internal data, it's probably screwed sadly. Cloud backup every phone you get my friend!
Sent from my LGE LG-H830 using XDA Labs
Click to expand...
Click to collapse
Fixed it! I flashed V20c and my phone's alive again! Phew.
Strange that it didn't fix the system errors when flashing the same rom again...

WIIstpM said:
Fixed it! I flashed V20c and my phone's alive again! Phew.
Strange that it didn't fix the system errors when flashing the same rom again...
Click to expand...
Click to collapse
Yeah phones are weird sometimes when it comes to fixing them. When it comes to lg. Always try different versions of kdz, lgups, etc.
Sent from my LGE LG-H830 using XDA Labs

Related

Vibrant Wont stay on

ok so my (edit) *Vibrant is not booting up...
I press the power button, the vibrant turns on, logo pops up, boot animation, Tmobile animation and galaxy s animation plus sound all happened, The phone gets to the lock screen and within 3 seconds just shuts down.
Anyone know what could be wrong.
Phone is stock, neither romed or rooted. is this a battery issue, hardware or software
Does it boot up when you have it charging? And which phone is it, the Vibrant or the Captivate? Those are 2 different phones.
djquick said:
Does it boot up when you have it charging? And which phone is it, the Vibrant or the Captivate? Those are 2 different phones.
Click to expand...
Click to collapse
sorry simple mistake, it is a tmobile vibrant...
it boots up when plugged in and when not plugged in... gets to the lock screen and it just waits and then shuts down completely.
can boot into
stock recovery
download mode
Kontagious said:
sorry simple mistake, it is a tmobile vibrant...
it boots up when plugged in and when not plugged in... gets to the lock screen and it just waits and then shuts down completely.
can boot into
stock recovery
download mode
Click to expand...
Click to collapse
If you can boot into stock recovery/download mode, just do a factory reset or flash the stock rom using odin
djquick said:
If you can boot into stock recovery/download mode, just do a factory reset or flash the stock rom using odin
Click to expand...
Click to collapse
I tried the factory reset and it says cannot read update.zip
i tried the odin stock rom flash and same problem persists.
Kontagious said:
I tried the factory reset and it says cannot read update.zip
i tried the odin stock rom flash and same problem persists.
Click to expand...
Click to collapse
Maybe you have a defective bootloader or phone. If it's still under warranty, just bring it back to T-Mobile and exchange it.
was trying to fix a vibrant for a friend of mine with a very similar problem
after many hours of work w/ odin & attempting to flash different things.. i concluded that it was hardware related bc i made it all the way to stock but it would just shut down randomly
does it give any sort of message when it shuts off? or just goes black?
have you dropped it a lot?
jonen said:
was trying to fix a vibrant for a friend of mine with a very similar problem
after many hours of work w/ odin & attempting to flash different things.. i concluded that it was hardware related bc i made it all the way to stock but it would just shut down randomly
does it give any sort of message when it shuts off? or just goes black?
have you dropped it a lot?
Click to expand...
Click to collapse
im starting to think its hardware related as well. at time when i boot into stock recovery the battery logo just shows up, the android man with the the exclamation point. idk if up to a certain level of currect is drained the battery shorts out. how can i possibly test the battery??
There is no message or anything... as soon as it boots up to the lock screen it just goes black.
i just acquired this phone. I have a HTC Glacier that i use for my everyday. this used to be my friends old phone and it started doing this, he just got another one and gave me this said if i could fix it i could have it to mess around with. as far as i know it hasnt experienced much rough and tough life. on the outside it looks almost brand new.
So I bought a brand new battery and the vibrant won't even charge the new battery...
Sent from my HTC Glacier using XDA
sorry to revive this but did you try cleaning the battery contacts?
You probably moved on with life lol

Phone goes crazy after being dropped onto the floor.

I have no idea what happened: My phone was dropped onto the floor, the phone started saying "Battery Disconnected" everytime I tried to charge it so I opened the back cover of my Samsung Phone, pushed in the battery and made sure it can work, it still says the message and after I try it the last time, the phone's "loading battery sign" thingy flashed on and off, then it pops up with a Critical Warning saying your OS has been cracked and will cause the phone to have problems (I did not root or install any malicious applications to my phone at all), so I left my phone there to re-download the OS.
Please help me with this issue.
BYMasterMM said:
I have no idea what happened: My phone was dropped onto the floor, the phone started saying "Battery Disconnected" everytime I tried to charge it so I opened the back cover of my Samsung Phone, pushed in the battery and made sure it can work, it still says the message and after I try it the last time, the phone's "loading battery sign" thingy flashed on and off, then it pops up with a Critical Warning saying your OS has been cracked and will cause the phone to have problems (I did not root or install any malicious applications to my phone at all), so I left my phone there to re-download the OS.
Please help me with this issue.
Click to expand...
Click to collapse
If reflashing the rom didnt solve the problem, i think the only way is get a new one.
Sent from my LT25i using xda app-developers app
yuskhayru said:
If reflashing the rom didnt solve the problem, i think the only way is get a new one.
Sent from my LT25i using xda app-developers app
Click to expand...
Click to collapse
sorry i have no idea what reflashing a rom is, though it says it is in Odin Mode.
Get a stock rom for your carrier from Samfirmware, flash it with Odin (How ? Search. This stuff has been asked/answered thousands of times here over the past two years, regurgitating it again is unnecessary).

HTC One+ got a sunburn...

Hello,
a friend of mine left her HTC One+ in the sun for 5 hours the last days...now it has a bootloop.
Clearly it has overheated...you get a glimpse of the bootloader/hboot menu but then it instantly reboots.
Now theres a lot of data left on that device but as we all know, this device has an internal memory only.
Is there a way to get to this internal memory? Perhaps there is an easy way to get a copy of this flashmemory and then load it into an emulator to get the data...
I have no access via adb (Fastboot-Driver shows shortly up in Device-Manager on PC but then phone reboots already).
Any ideas perhaps? She even cant sell the phone because of 'private' data ...if someone gets it running again...yeah...
Regards,
knighToFdemonS
knighToFdemonS said:
Hello,
a friend of mine left her HTC One+ in the sun for 5 hours the last days...now it has a bootloop.
Clearly it has overheated...you get a glimpse of the bootloader/hboot menu but then it instantly reboots.
Now theres a lot of data left on that device but as we all know, this device has an internal memory only.
Is there a way to get to this internal memory? Perhaps there is an easy way to get a copy of this flashmemory and then load it into an emulator to get the data...
I have no access via adb (Fastboot-Driver shows shortly up in Device-Manager on PC but then phone reboots already).
Any ideas perhaps? She even cant sell the phone because of 'private' data ...if someone gets it running again...yeah...
Regards,
knighToFdemonS
Click to expand...
Click to collapse
Hi, well how do u know that it got sunburned? If the device got overheat it i will shutdown due to battery drain. Did u charge the phone properly? and did someone tried to unlock or root it ? that might have caused the problem as well which you state.
regards
Optimus said:
Hi, well how do u know that it got sunburned? If the device got overheat it i will shutdown due to battery drain. Did u charge the phone properly? and did someone tried to unlock or root it ? that might have caused the problem as well which you state.
regards
Click to expand...
Click to collapse
This friend of mine has no idea of rooting or something like that - she just bought an iphone 5s as replacement... (i could kill her but she wont listen to me )
We got above 30° Celsius the last days and so i came up with the idea that i might got too hot. So i asked her if she left it directly in the sun and yes she did..."How long?" -"About 5 hours" ... I dont think that even the overheat protection would have safed it, because it was very very hot directly in the sun.
Yes, but there is not much to try to charge the phone (even the LED is totally dead). A few seconds after you get past the HTCLogo the phone reboots I dont think any of the recovery/bootloader-memory was damaged but it looks like the phone is trying to turn on(boot up) some hardware, gets no response or wrong answer due to damage and reboots instantly...
Try to get into hboot
Sent from my One X using XDA Premium 4 mobile app
With the phone completely off press volume down...hold it and then press power on...let go of power when it lights up...let us know what happens
Sent from my HTC One X+ using XDA Free mobile app
NooBOnTheBlock said:
With the phone completely off press volume down...hold it and then press power on...let go of power when it lights up...let us know what happens
Sent from my HTC One X+ using XDA Free mobile app
Click to expand...
Click to collapse
Already tried that As told, the menu shows up for a glimpse and then the phone reboots again. It reboots into hboot as long as you hold the buttons but it wont stay there.
In normal boot only the HTC logo shows up, vibration and then it reboots.
With the phone plugged into your computer, type adb reboot bootloader on command prompt and see what happens
Sent from my One X using XDA Premium 4 mobile app
It is not necessarily a hardware problem. and I don't know if this could happen from Sun. my HTC One X+ used to reach 60 Celsius sometimes (140 Fahrenheit) degrees and nothing happened to it. If your internal memory was damaged the phone would not even turn or or charge. So It's not the memory maybe.
But it might be true that there is some hardware fault that is preventing the phone from booting. But It is for sure not the internal memory. If your bootloader is unlocked , you can try flashing a custom recovery and using ADB to pull the files from the recovery.
But if your bootloader is still LOCKED then DO NOT unlock it cause that would wipe all your data.
You were referring to your device was "HTC One+" Did you mean HTC One X Plus ? I hope you're not confusing it with another device
Anyway, I don't think you have a choice Try the Factory Reset option from the bootloader screen (I'M NOT SURE But Maybe it wipes the /data/ partition without wiping /data/media/ )..So MAYBE..just MAYBE she will not lose the pictures or videos on the sdcard. But again , I'm not sure about that cause I honestly forgot. But You don't have many choices left so give it a try !

Random shut off and bricked?

I bought a g5 from a wholesaler and I was browsing facebook when the phone froze then restarted and kept freezing on the lg logo on boot up and seemed to try to boot back up but finally turned off and wouldn't boot back up nor charge or anything. Anyone familiar with this?
Sent from my LG-H820 using XDA-Developers mobile app
Before anyone suggest anything. Have you tried ro remove the battery, put the charger part back again without the battery. Then pressand hold the power button for about 20-50 seconds. Then put the battery back in the phone and try to turn it on? Also, have you try to access recovery mode or download mode? And also, can you connect your phone to the computer to see if you can verify that when you connect the phone the computer does detect it?
Joseguillen1994 I didn't have a computer to look this stuff up as I'm not at home or even near a usable computer. I was browsing facebook and then bam it froze then wouldn't power back on.
Sent from my LG-H820 using XDA-Developers mobile app
Is this a common problem with this phone or something? I see very few cases of this so ill just ask now.
Sent from my LG-H820 using XDA-Developers mobile app
nellycruzz said:
Is this a common problem with this phone or something? I see very few cases of this so ill just ask now.
Sent from my LG-H820 using XDA-Developers mobile app
Click to expand...
Click to collapse
It is a very uncommon problem. Among the few peoples who have reported that the phone is bricked is because they flashed something that wasnt meant to be flash in their phones. For instace, a person in xda went ahead to flash something meant to be used only for the h850. Then his phone began to boot and then it wouldnt turn on anymore. But seems like this is not your case. Did you try to remove the battery and all i said?
---------- Post added at 07:40 PM ---------- Previous post was at 07:37 PM ----------
Also, whenever you get near any computer, please connect the LG G5 and see whether the device appears in device manager
I will try that and I've seen a few people report to be using the phone with no problems and then it freezes and will not power back on. So I'm not to sure what's going on here. I did all of that and nothing. I returned to the seller and he swapped me and with this one I get random reboots after the phone freezing for a moment before resetting back to the lg logo and then the AT&T logo before starting back up.
Sent from my LG-H820 using XDA-Developers mobile app
nellycruzz said:
I will try that and I've seen a few people report to be using the phone with no problems and then it freezes and will not power back on. So I'm not to sure what's going on here. I did all of that and nothing. I returned to the seller and he swapped me and with this one I get random reboots after the phone freezing for a moment before resetting back to the lg logo and then the AT&T logo before starting back up.
Sent from my LG-H820 using XDA-Developers mobile app
Click to expand...
Click to collapse
okay. this happened to me with my father's LG G3. i was downloading a gps app to compare signals with another phone i have, not lg branded and i put the lg g3 in my pocket after i tested the app . when i took the phone out of my pocket it was rebooting and even if i did wipe the system, cache and dalvik , and then install the custom rom back again the phone would allow me to install any rom. so, i had an spare battery and i decided to try it as a last resource. when i tried the spare battery it did allow me to install the custom roms again without the need to wipe everything. so, another thing you might want to consider is a defective battery. tomorrow i will try to drain the energy of the battery was causing the issue in the LG g3, then im going to recharge it once again to see if it fix the problem. so, this is another possibility for your problem.
Well here's the thing. When I went to swap with the seller, we tested the battery with the new lg g5. And it powered right on. And what's odd is that when we put it back into the defective g5, wouldn't power on. So powered on one but not the other.
nellycruzz said:
Well here's the thing. When I went to swap with the seller, we tested the battery with the new lg g5. And it powered right on. And what's odd is that when we put it back into the defective g5, wouldn't power on. So powered on one but not the other.
Click to expand...
Click to collapse
Hahaha thats why i said possibility. In my situation it was the battery for the g3. I assume you already tried to use the phone without installing any user apps, right? By the way. Can you turn on the new one? If you can manage to pass the boot screen, you might go to the power menu and press to boot in safe mode. (just to make sure it isnt any applications)
This has happened to me several times
I have used LG phones for the last 10 months. With my first one, an LG G4, it was just fine for around 7 months, and then I experienced the exact screen-freeze and reboot issue you mentioned. I remove the battery and re-insert it, and it works again. Then, a week later, GONE. Bricked. I call AT&T, and they send me a replacement. This one lasts just over a month, until the exact same issue occurs. Now I'm more than a little miffed. I call AT&T, and they accept my request for a new LG G5. I'm super-excited with this brand new beast in my hands. Three days into my usage, BAM! Screen freeze, reboot, repeat. I'm now into my fourth LG device, this latest one a replacement LG G5 from AT&T. Fingers crossed this one turns out okay!
nellycruzz said:
I bought a g5 from a wholesaler and I was browsing facebook when the phone froze then restarted and kept freezing on the lg logo on boot up and seemed to try to boot back up but finally turned off and wouldn't boot back up nor charge or anything. Anyone familiar with this?
Sent from my LG-H820 using XDA-Developers mobile app
Click to expand...
Click to collapse
exact same thing happened to me.. i checked online and some said to remove battery, then press pwr button for 50secs ... but it didnt work. took it to the retailer and they said it was water damage (allegedly because when i removed the battery i didnt see any water damage) :/ im waiting for the insurance phone to arrive (sigh)
i have the same here from germany. Suddenly bootloop and no chance to do anything. Can no one help here?

Softbrick? Or am I out of luck?

Hi I'm pretty new to rooting and flashing and all that modifying my phone stuff. Firstly I'd like to thank @roirraW "edor" ehT and @LASERWOLF452 for the guides on rooting my phone which I've been trying to do for over a year, but just now finally succeeded.
Now I've run into a problem leaving my phone useless. Not sure if software or hardware problem. After I turn my phone on, which sometimes that doesn't work, it gets to LG logo then screen goes black, all buttons unresponsive including power button. I think I softbricked my phone because sometimes it gets stuck in the bootloop. (Edit: It doesn't go into the bootloop that often, mostly just blackscreens after LG logo or when I turn it on, it vibrates and that's all, logo doesn't even pop up.) Sometimes when I pull the battery out, wait a few minutes, then put it back in I can get it to turn on and get to the PB Screen after the LG logo (because I have the PitchBlack theme installed). Sometimes I can even get to my home screen even open an app, but then everything freezes and screen goes off. Usually after any of these attempts, doing anything with the power button results in nothing, not even a single vibration. It makes me think that the phone is on just the screen is unresponsive. So I have to pull the battery out and try again. I held volume down and power button til LG logo came on, then let go of power button and immediately held it again until I got into recovery. Scrolled down to factory reset, clicked yes, then most of the time the phone shuts off and the LG logo comes on and goes black again. One time it got TWRP to open up. But it froze and screen went black. I finally got it to go into TWRP again randomly, but trying to click on the "Advanced" key in the process of wiping the dalvik cache my phone half froze. By half froze I mean just that. The status bar showed my phone's changing temperature, the minutes were changing and the battery percent showed. When I went to slide the arrow to wipe the cache it wouldn't move. It was like the bottom part of my touchscreen wasn't working. Then I pressed the power button and it locked the screen and said slide to unlock but I couldn't slide the slider. So it's like half of my phone functioned and half didn't.
I wasn't having major issues like this except occasionally getting my phone to receive a charge or turn on. This booting issue started yesterday when I was at work. I was just playing pokemon GO and decided to charge my phone. I unplugged a charger for a Bose speaker (one of those color sound ones) and plugged it into my phone and it immediately shut off and wouldn't get past the LG logo. After a long night of failed attempts to get it working, this is where I am now.
I rooted my phone last week. After the first night I freaked out because I couldn't get my phone to turn on the next morning, I forgot to charge it and the battery was drained. It wouldn't even receive a charge. Then I googled some stuff and found out that taking the battery out and putting it back in can sometimes get it to receive a charge. Then I have to unplug it before turning it on or else it'll just reboot with the battery logo. I've had to do this every time when the battery is completely drained.
I rooted my phone by downgrading to 35B and doing all that LG FlashTool stuff then used Stump. Then installed TWRP and CM13. The most recent thing I have been messing with is Xposed Installer and downloaded and activated a few modules yesterday. Could those have done something? A few were out of date that I decided to give a try. After I turn my phone on and feel it vibrate and all that, I think it actually is turning on. Whether it makes it to the LG logo or not, it seems like it is turning on and maybe the screen just isn't functioning the way it's supposed to. I can't turn it on again, holding the power button does nothing.
Sorry that this was really long, tried to give a detailed description of my issue. Phone has been useless for 24 hours now. It really sucks because I need it, will be traveling through a few airports later today and need to call people to make sure I have rides. Only thing I can think to try is get a new battery. I would really appreciate any help that anyone can provide! I'm desperate.
Update: Recently I have been able to get the phone to start up like normal and get to the home screen, check my texts, that kind of stuff, but within 30 seconds it freezes and shuts off.
I'll confess, I didn't read everything, but a few questions and suggestions. FYI if it were me I'd skip right to suggestion #3.
Can you still access TWRP?
If so,
1. Try wiping Cache and Dalvik /ART or if that doesn't work wipe Cache, Dalvik /ART and Data.
2. If both don't help, wipe them again, then do a fresh flash of whatever preferably stock based ROM you want and the appropriate Bootstack.
3. I would flash the 10B TOT and start fresh. It's often enough the experience of users who flash non-stock or international stock-based ROMs to have various troubles.
No matter what caused the problem, TOTs contain more partitions that KDZs and flashing TOTs can fix problems that KDZs can't.
Good luck, keep us posted.
roirraW "edor" ehT said:
I'll confess, I didn't read everything, but a few questions and suggestions. FYI if it were me I'd skip right to suggestion #3.
Can you still access TWRP?
If so,
1. Try wiping Cache and Dalvik /ART or if that doesn't work wipe Cache, Dalvik /ART and Data.
2. If both don't help, wipe them again, then do a fresh flash of whatever preferably stock based ROM you want and the appropriate Bootstack.
3. I would flash the 10B TOT and start fresh. It's often enough the experience of users who flash non-stock or international stock-based ROMs to have various troubles.
No matter what caused the problem, TOTs contain more partitions that KDZs and flashing TOTs can fix problems that KDZs can't.
Good luck, keep us posted.
Click to expand...
Click to collapse
Sorry I know it was super lengthy. Sometimes I can access TWRP and sometimes I can't. I'm getting so aggravated with my phone! I think I successfully wiped Dalvik which did not help so I'll try to do the others if my phone wants to cooperate with me. Most of the time it doesn't even want to boot into recovery. Most of the time after clicking Yes under factory data reset the LG logo pops up then my phone just goes black.
Update: Wiped Davlik/Art, Cache, and Data. Rebooted and saw the CM13 logo instead of PB but then immediately shut down.
Yeah, I'd definitely go the 10B TOT route.
I've rooted a few phones, but I'm not a ninja like these other xda'ers are. I'm running Jasminerom 8.0 (which is excellent on the g3), a couple of weeks ago, I tried Dirty Unicorns, but it didn't seem to play well with my phone, so I went back to JR 8.0 (by restoring my nandroid backup) then tried to upgrade to JR 9.0 then 9.1. I didn't even get the LG start screen, the screen was black, but I could tell the phone was on by a couple of noises. I did hyelton's "[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ & TOT Method With LGUP" http://forum.xda-developers.com/showthread.php?t=2785089 It puts the phone back to dead stock, you have to root again and reinstall twrp, then you can go to the rom you want. It scared me pretty good, but within a day or 2, I had my phone back to where it was. Don't forget to thank the devs who post these guides, they can get you out of almost any jam you get into.:good:
FesterBesterTester said:
I've rooted a few phones, but I'm not a ninja like these other xda'ers are. I'm running Jasminerom 8.0 (which is excellent on the g3), a couple of weeks ago, I tried Dirty Unicorns, but it didn't seem to play well with my phone, so I went back to JR 8.0 (by restoring my nandroid backup) then tried to upgrade to JR 9.0 then 9.1. I didn't even get the LG start screen, the screen was black, but I could tell the phone was on by a couple of noises. I did hyelton's "[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ & TOT Method With LGUP" http://forum.xda-developers.com/showthread.php?t=2785089 It puts the phone back to dead stock, you have to root again and reinstall twrp, then you can go to the rom you want. It scared me pretty good, but within a day or 2, I had my phone back to where it was. Don't forget to thank the devs who post these guides, they can get you out of almost any jam you get into.:good:
Click to expand...
Click to collapse
I was literally in the middle of following the instuctions in the guide you linked, then when I have FlashTool all ready, I noticed my phone turned off. I read that I might have to put it back in download mode after messing with device manager. Now the problem is I can't get it to download mode. I can get the download mode and blue dots image, but doesn't go to the next screen with the "firmware update don't unplug phone" it just goes to blackscreen help I was literally just in download mode now my computer says it doesn't recognize the last usb device that I plugged in
ArcticPat said:
I was literally in the middle of following the instuctions in the guide you linked, then when I have FlashTool all ready, I noticed my phone turned off. I read that I might have to put it back in download mode after messing with device manager. Now the problem is I can't get it to download mode. I can get the download mode and blue dots image, but doesn't go to the next screen with the "firmware update don't unplug phone" it just goes to blackscreen help I was literally just in download mode now my computer says it doesn't recognize the last usb device that I plugged in
Click to expand...
Click to collapse
Do a battery pull to make sure it is shut off, then do the Vol up while plugging in the usb cable. Even if the screen stays black, it should still go into download mode (that's exactly what had happened to me). When you go into Device Manager, you should see LGE Modem listed under Ports, and keep following hyelton's instructions. I was sure mine was dead, but it worked fine.
FesterBesterTester said:
Do a battery pull to make sure it is shut off, then do the Vol up while plugging in the usb cable. Even if the screen stays black, it should still go into download mode (that's exactly what had happened to me). When you go into Device Manager, you should see LGE Modem listed under Ports, and keep following hyelton's instructions. I was sure mine was dead, but it worked fine.
Click to expand...
Click to collapse
I managed to get into download mode, two additional times. The first time, after started FlashTool, it said download failed at 10%.After an hour I finally got it to go into download mode again. Got to 57% then said download failed. My phone won't stay on or something. Everything was going smoothly, then boom black screen download failed. This has been the problem the entire time with my phone. Sometimes I can get to the homescreen, open my texts, browser an app or 2 then freeze and black screen. It won't stay on long enough for FlashTool so what the hell do I do now?!
Now my phone won't even vibrate when I plug it in while holding Vol Up. It comes up as something slightly different in device manager though. I kept FlashTool open even with the failed download, but it says "Can't change to download mode" in the port 1 box.
Also sometimes after plugging in, when it does vibrate, the LG logo comes on instead of DL mode. When that happens my phone appears as something QualCom in device manager then disappears.
Also, does it matter if my COM41 says 'in use'?
ArcticPat said:
I managed to get into download mode, two additional times. The first time, after started FlashTool, it said download failed at 10%.After an hour I finally got it to go into download mode again. Got to 57% then said download failed. My phone won't stay on or something. Everything was going smoothly, then boom black screen download failed. This has been the problem the entire time with my phone. Sometimes I can get to the homescreen, open my texts, browser an app or 2 then freeze and black screen. It won't stay on long enough for FlashTool so what the hell do I do now?!
Now my phone won't even vibrate when I plug it in while holding Vol Up. It comes up as something slightly different in device manager though. I kept FlashTool open even with the failed download, but it says "Can't change to download mode" in the port 1 box.
Also, does it matter if my COM41 says 'in use'?
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Now you're getting into territory that I have no experience with. I'm sorry I can't help any farther, I hope some of the more experienced xda'ers can help you out.
FesterBesterTester said:
Now you're getting into territory that I have no experience with. I'm sorry I can't help any farther, I hope some of the more experienced xda'ers can help you out.
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Click to collapse
lol thanks for your help! The only issue I've run into the past hour is that I haven't been able to get into Download Mode. When I hold Vol Up and connect USB it either loads the LG logo or just goes blank. Doesn't give me the 'download mode' with the blue dots.
So I'm guessing it's a bad thing if my phone shows up as Qualcomm HS-USB QDLoader 9008 (COM9)?
Phone just shuts off too fast to do anything. If I successfully make it to download mode, only shows for two minutes in device manager. Qualcomm only shows up for about 2 minutes too. What do I do? I can't even flash the 10B TOT because of this.j
It used to be hard to get the battery to charge, but now I can't get it to charge at all!
Update: I realized, the longer I leave my phone alone, the longer it stays on. I waited an hour then tried Download Mode again. Phone stayed in Download Mode long enough for me to get to the blue screen and the red 3. I forgot what to do when I got to this point so I just let it go and it turned off by itself. I took out the battery, then tried to reboot and it hit the LG logo and the little Android when you first set up your phone then black screen.
Update 2: After waiting another hour, I got the phone to sort of start up. Got to the LG logo, then the green android with a blue loading bar underneath then wham! Green screen saying Tz crash! DemiGod Crash Handler. And some other stuff. What the heck is this? Never even heard of it before.
Update 3: tried to flash again, reached the blue screen with the red 3, pulled out USB and battery then tried to boot up and doesn't even boot up.
Sorry for double post, but this is a huge update. I realized the longer I leave my phone alone, the longer it will stay on. So I left the battery out for an hour. Finally I was able to flash 10B TOT and got to the blue screen with the big 3 on it. I wasn't sure what to do so I just left it there and it eventually shut itself down. Tried to boot up and same thing, black screen after LG logo. Does this mean I'm out of luck @roirraW "edor" ehT ?
Don't tell me this has been a hardware issue the whole time... I even tried new batteries today when I went to a cell phone outlet. Tested 4 LG G3 replacement batteries all with the same blackscreen after LG logo
It does sound like hardware, but its very possible the battery itself is the only issue. Unfortunately, without a spare to try, I don't know any way of finding out for sure if that's the issue without buying a new battery. LG's had them on sale for $15 from time to time, but I don't know if they are now or if they're in stock. On the one hand, I'd hate to see you buy a new one locally only to find out that doesn't fix anything but if the battery is the only issue it's a shame to write the phone off. If you lived around Columbus, Ohio I'd offer for you to try my battery just to see what happens.
There definitely has been enough of a precedent of user's batteries being the culprit with this phone.
That's what I get for reading only 5 out of 6 of the new posts. Sorry, yeah, it doesn't sound like there's much hope. Glad you at least had a place to try a different battery without buying one. I don't know what else to suggest - you could try sending it to LG for service. I can vouch for their warranty service - I can't personally report on their out of warranty. In warranty they returned my tablet fixed four days after they paid to have it packaged and shipped to them.
EDIT: Nevermind, only read part of the post and provided bad advice, lol.
roirraW "edor" ehT said:
It does sound like hardware, but its very possible the battery itself is the only issue. Unfortunately, without a spare to try, I don't know any way of finding out for sure if that's the issue without buying a new battery. LG's had them on sale for $15 from time to time, but I don't know if they are now or if they're in stock. On the one hand, I'd hate to see you buy a new one locally only to find out that doesn't fix anything but if the battery is the only issue it's a shame to write the phone off. If you lived around Columbus, Ohio I'd offer for you to try my battery just to see what happens.
There definitely has been enough of a precedent of user's batteries being the culprit with this phone.
That's what I get for reading only 5 out of 6 of the new posts. Sorry, yeah, it doesn't sound like there's much hope. Glad you at least had a place to try a different battery without buying one. I don't know what else to suggest - you could try sending it to LG for service. I can vouch for their warranty service - I can't personally report on their out of warranty. In warranty they returned my tablet fixed four days after they paid to have it packaged and shipped to them.
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The guy almost didn't let me try the battery. It was a dinky little stand in a farmers market and I was like let me see if they have any batteries. Luckily they did and I was like can I try it? He had the audacity to say sure but that's 20$ extra. Then I said how much is the battery? He said $40. THIS GUY!!! I almost had to beg just to see if it worked, and he finally agreed. He wouldn't even let me do it myself so I gave him my phone and he tried 3 different batteries and still the same problem.
I really appreciate that you would offer a stranger to test out your battery. It's funny that you live in Columbus because I actually go to school near there! I don't go to OSU but I go to OWU in Delaware, Ohio. But you are right, I'm not currently there but will be there soon.
Anyway, I decided that I had given it my all after trying different batteries, flashing the 10B TOT, etc. and made myself go to the Verizon store. Told the guy that greeted me that my phone wouldn't boot. Mind you I'm a little nervous because I don't want them to find out it's rooted if the 10B TOT didn't flash correctly, but I figured I'd had this phone for over two years, it's out of warranty so whatever. He tried to boot it and got nothing, not even the LG logo. So he said since the screen isn't cracked and no water damage I can get a new phone for free. You should have seen my face, my jaw dropped. I said "What?" He told me I have some warranty extension insurance. I said I know I had some insurance where I paid like 8$ a month, but I canceled that last year. He told me no, you have insurance and you pay 9$ a month. I was astonished and was like wow I thought I cancelled it, oh well, if it fixes my phone for "free" then let's do it. So now I'm eagerly waiting for the phone to arrive in the mail. I've had a brick for 4 days now so I'm feeling all kinds of disconnect. My only regret is that I didn't go into Verizon earlier.
So I'm hoping their warranty service is as great as you say. My only fear is that when I put my current battery, sim, and back cover on the new phone that it won't boot. I suppose at least I'll know for a fact that it's the battery at that point. Weird though that I've had this battery for two years and not a single issue...
Would it be wise to go through the root process again? I did all this in the first place just so I could cheat in pokemon, but then found so many cool modules from Xposed that made my life feel that much better.
ArcticPat said:
Would it be wise to go through the root process again? I did all this in the first place just so I could cheat in pokemon, but then found so many cool modules from Xposed that made my life feel that much better.
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Only you can determine that, sorry mate.
roirraW "edor" ehT said:
Yeah, I'd definitely go the 10B TOT route.
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I am on fulmics ROM 5.3 with 35B bootstack. Want to go back to kk10B what should i do.. Like do i need special .dll file as i use 35B bootstack?
Never used kdz or tot except for 10B on my phone. Means Never used kdz or tot to flash official lp or MM
Sent from my LG-VS985 using Tapatalk
minhas729 said:
I am on fulmics ROM 5.3 with 35B bootstack. Want to go back to kk10B what should i do.. Like do i need special .dll file as i use 35B bootstack?
Never used kdz or tot except for 10B on my phone. Means Never used kdz or tot to flash official lp or MM
Click to expand...
Click to collapse
The 35B Bootstack should allow you to use the original .DLL, because it's the correct combination of partitions from both 12B and 35B - which are necessary in order to be able to get into TWRP and as far as I'm aware allow using the old .DLL but also as far as I know and have experienced, you can use the newer .DLL any time. It's only when you're 100% stock 35B or higher that you can't flash the TOT without the newer .DLL, and can't flash KDZs older than 35B.
See post #5 of this thread for a link to a post. The post has another link to directions for Verizon. You can get the 10B TOT and the newer .DLL from my Android File Host link the bottom of the first post of @annoyingduck 's stickied return to stock thread in the General section, also in my signature below.

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