soft bricked but can't connect to computer - G4 Q&A, Help & Troubleshooting

What happened -
I have no idea, my tmobile lg g4 was running cm13 and had twrp. I set it down for a minute, when I picked it back up the device had turned off. Turned it back on to a bootloop.
The problem -
I can't get into twrp no matter how many times I try. I can't connect to my PC. Nothing at all is detected. I downloaded as many lg drivers as I could find and still nothing. ADB and fastboot don't work since I can't connect to computer. The lg flash tool goes to 2% and then says there was an error connecting try again later. The only thing I can seem to do is enter download mode. I've tried pulling the battery and leaving it for a couple hours all is still the same.
I would really appreciate some help thank you so much

JakeReis said:
What happened -
I have no idea, my tmobile lg g4 was running cm13 and had twrp. I set it down for a minute, when I picked it back up the device had turned off. Turned it back on to a bootloop.
The problem -
I can't get into twrp no matter how many times I try. I can't connect to my PC. Nothing at all is detected. I downloaded as many lg drivers as I could find and still nothing. ADB and fastboot don't work since I can't connect to computer. The lg flash tool goes to 2% and then says there was an error connecting try again later. The only thing I can seem to do is enter download mode. I've tried pulling the battery and leaving it for a couple hours all is still the same.
I would really appreciate some help thank you so much
Click to expand...
Click to collapse
Have you tried redoing it with a kdz and lg up if that dont work then i think you have the infamous bootloop

Related

lg e975 stuck in clockworkmod boot loop

I recently installed miui from official website for lg e975. My phone is lg f180 so they both are same.
It was working fine till this morning it asked for update. I allowed. It retarted and now it starts shows google logo. Then goes to recovery.
I flashed my original backup rom. Then even flashed miui rom. Nothing changes. I wiped cache. Data dalvik a lot of times.
It just starts shows google logo. Goes to recovery. Please help
Im sorry if this thread doeant belong here. Mods please move
Thought i should add.
I dont have any other access but cwm recovery
I only have a backup of my original rom through cwm. No kdz files.
I have a miui zip rom on phone as well
awais3344 said:
Thought i should add.
I dont have any other access but cwm recovery
I only have a backup of my original rom through cwm. No kdz files.
I have a miui zip rom on phone as well
Click to expand...
Click to collapse
Flash stock zip kernel from artmod thread.
the problem is. I can't upload any files to mobile phone. if i connect to pc, it turns on, goes to recovery, so I click on mount storage, and other mount option, nothing happens. My computer detects phone as F180L with a exclamation mark.
If i go to download mode, and then try to flash any KDZ file from all the f180 KDzs. It gives me errors.
LG Support Tool on entering serial number and model name says "check out serial number and model"
ADB never detects my phone. So I can't upload anything.
No option to upload files via SD Card.
ok, so I have no clue what happened :crying: phone was in download mode. I did nothing, but only installed LG Support Tool USB driver, while the mobile connected.
Then I installed Microsoft .net framework 4.0. And my phone is now qhs_usbdload. it's officially bricked now. I have no clue what happened. This is all that happened before I restarted and selected "reboot to bootloader" and its dead. So there's nothing left to do but throw it out
WTF OKAY! I have no clue!
But, after seeing that qhs usbdload. (i have seen that before with other phones). I complete lost any hope.
So I for feeling contended, downloaded qpst, and emmc software download, and selected MPRG8064.hex and msimage.bin.
Then like I expected it threw an error "image download failed, cookie if present not received"
so I lost hope disconnected my phone and put it there. After a few minutes thought I should try one last time.
so I connect it my pc and VIOLA it turns ON!?
now I have that same rebooting to recovery problem. I have no explanation for whatever has happened to phone in past 3 hours. I have been with phones for years. This is the weirdest thing to happen ever :angel:
Now someone, please help me?
1. Why is this in Development section?
2. You can't mount internal SD as USB storage. Use adb push or adb sideload instead, that will help you to get the files onto your phone.
awais3344 said:
WTF OKAY! I have no clue!
But, after seeing that qhs usbdload. (i have seen that before with other phones). I complete lost any hope.
So I for feeling contended, downloaded qpst, and emmc software download, and selected MPRG8064.hex and msimage.bin.
Then like I expected it threw an error "image download failed, cookie if present not received"
so I lost hope disconnected my phone and put it there. After a few minutes thought I should try one last time.
so I connect it my pc and VIOLA it turns ON!?
now I have that same rebooting to recovery problem. I have no explanation for whatever has happened to phone in past 3 hours. I have been with phones for years. This is the weirdest thing to happen ever :angel:
Now someone, please help me?
Click to expand...
Click to collapse
Some user got that problem before. I am not sure about how they solve it but I guess that they flash their original KDZ back. If your phone can enter download mode, you should try LG Flash tool 2014 and flash your original kdz to restore incorrect system image.
About adb cannot find your phone, try to remove adb driver from device manager and reinstall LG usb driver.
artit said:
Some user got that problem before. I am not sure about how they solve it but I guess that they flash their original KDZ back. If your phone can enter download mode, you should try LG Flash tool 2014 and flash your original kdz to restore incorrect system image.
About adb cannot find your phone, try to remove adb driver from device manager and reinstall LG usb driver.
Click to expand...
Click to collapse
My phone is acting weird. Sometime it would start. Sometime the red light would blink. Sometimes the red light wouldn't blink at all. Then sometimes, it starts. And then it doesn't.
I have no clue what is going on with it.
But it went to download mode many times again, it would go to fastboot, bootloader, recovery etc. Then sometimes it will not respond to any buttons at all! I know its battery is down, but idk if it's charging or not?
I don't know how to know whether the phone is charging or not. I left it charging for 30 minute, and it didn't even buzz. :crying:
awais3344 said:
I know its battery is down, but idk if it's charging or not?
I don't know how to know whether the phone is charging or not. I left it charging for 30 minute, and it didn't even buzz. :crying:
Click to expand...
Click to collapse
One thing you can do (I've done it in the past a couple of times) is to crack your phone open, disconnect the battery, and charge it with an external charger. That would at least give you a full battery to start with...
Regarding the charging problems, I had that once. I was able to startup the phone by simply using a 2A charger instead of the LG's 1.2A.
When I had this issue it was charging while in recovery. Please look at this post and flash your kdz.
http://forum.xda-developers.com/showthread.php?p=54934779. This one helped me http://forum.xda-developers.com/showthread.php?p=53728658
Sent from my LG-E975 using XDA Free mobile app
kt-Froggy said:
One thing you can do (I've done it in the past a couple of times) is to crack your phone open, disconnect the battery, and charge it with an external charger. That would at least give you a full battery to start with...
Click to expand...
Click to collapse
thanks. but after charging it. I couldn't turn the screen off because it goes in recovery. I turned off the phone after good 30 minute charging. Then went to sleep. And in the morning I connected it to pc. by holding volume buttons for download mode. It didn't go to download mode. Only it's red light is blinking. and no display.
awais3344 said:
thanks. but after charging it. I couldn't turn the screen off because it goes in recovery. I turned off the phone after good 30 minute charging. Then went to sleep. And in the morning I connected it to pc. by holding volume buttons for download mode. It didn't go to download mode. Only it's red light is blinking. and no display.
Click to expand...
Click to collapse
Hey man. I have exaxt same prolem when update miui. Just do this when you got your recovey. Connect your phone to pc, let your pc update driver. Use adb sideload to flash stock zip kitkat e975 lgviet. Goodluck.
huy_gm said:
Hey man. I have exaxt same prolem when update miui. Just do this when you got your recovey. Connect your phone to pc, let your pc update driver. Use adb sideload to flash stock zip kitkat e975 lgviet. Goodluck.
Click to expand...
Click to collapse
Hi, regarding that. I was able to sideload exitrecovery.zip file. It goes to 100% then nothing happens. Nothing happened on phone screen as well.
And can you send me link to that stock zip kitkat? i have a miui.zip and few other roms that I have not tried. thanks
Edit: also what should I do about adb, am i doing correct?
Becuase in adb devices, my device is displayed with deviceID sideload
And i have only pasted adb folder, with a dll and a zip file, there is nothing else, do I need to install SDK?
I tried lg flash tool 2014 again, and it flashed, I swear yesterday I tried to flash it, and after clicking on it, it never showed me country and language selection menu, so it would sit there and do nothing. now I don't know how but it did it :laugh:
thank you so much you'all

[Q] Boot loop: Can't enter Firmware Upgrade mode

I'm posting a question as I've spent days searching with no luck.
I have an LG G3 that while in normal use got very hot and turned off. Now it gets stuck at the LG logo and doesn't boot. I tried a normal factory reset but this just goes back to the LG logo and nothing happens.
So I'm trying to get into the download mode "Firmware Upgrade" screen to flash the stock rom. I hold down volume Up, and plug in the USB and it gets to the little "Download Mode" icon but does not continue to "Firmware Upgrade" and the computer (I've tried 3 different systems) wont recognize the phone.
Interestingly at some point while being in download mode it switched to fastboot, I have no idea how this happened but I was able to run commands on the phone using fastboot.exe, however I have not been able to get back to fastboot since.
Also I'd really like to be able to recover the data on the phone.
Any help would be appreciated.
Grymyrk said:
I'm posting a question as I've spent days searching with no luck.
I have an LG G3 that while in normal use got very hot and turned off. Now it gets stuck at the LG logo and doesn't boot. I tried a normal factory reset but this just goes back to the LG logo and nothing happens.
So I'm trying to get into the download mode "Firmware Upgrade" screen to flash the stock rom. I hold down volume Up, and plug in the USB and it gets to the little "Download Mode" icon but does not continue to "Firmware Upgrade" and the computer (I've tried 3 different systems) wont recognize the phone.
Interestingly at some point while being in download mode it switched to fastboot, I have no idea how this happened but I was able to run commands on the phone using fastboot.exe, however I have not been able to get back to fastboot since.
Also I'd really like to be able to recover the data on the phone.
Any help would be appreciated.
Click to expand...
Click to collapse
do you installed latest official lg drivers for your phone and if you have old drivers installed then uninstall these und install the newer and then reboot your computer.
maybe this help.
dusu84 said:
do you installed latest official lg drivers for your phone and if you have old drivers installed then uninstall these und install the newer and then reboot your computer.
maybe this help.
Click to expand...
Click to collapse
Thanks I tried the drivers you've provided but still no luck. The computer won't detect the phone at all, it doesn't attempt to install drivers nor does the phone show up as a generic device.
Grymyrk said:
Thanks I tried the drivers you've provided but still no luck. The computer won't detect the phone at all, it doesn't attempt to install drivers nor does the phone show up as a generic device.
Click to expand...
Click to collapse
maybe anyone can help you but i read in a german forum of someone with about the same problem... the the device reboots stuck at the lg logo and it wont recognize by the computer.
after all the repair service said it was a hardware defect!
dusu84 said:
maybe anyone can help you but i read in a german forum of someone with about the same problem... the the device reboots stuck at the lg logo and it wont recognize by the computer.
after all the repair service said it was a hardware defect!
Click to expand...
Click to collapse
I hope not, this phone was purchased in Media Markt in Germany and it's not covered by warranty here. LG Australia said it would cost up to $260 for them to fix it and the phone could possibly be downgraded if the mainboard needs to be replaced. I don't know if it would be possible to claim the German warranty.
dusu84 said:
maybe anyone can help you but i read in a german forum of someone with about the same problem... the the device reboots stuck at the lg logo and it wont recognize by the computer.
after all the repair service said it was a hardware defect!
Click to expand...
Click to collapse
Hello!!! I need some help I have an LG L65 D280N, and of nothing it turned on and open a pink screen whith a dbi err fatal!!! I tried too flash it with the costum firmware and everything but the problem is that when i tried to enter the firmware update mode the phone just won't enter it!!! I push the volume up wait 3 seconds and connect the usb cable to enter in firmware mode and the starts to vibrate like he is starting, but doesn't do anything, vibrates sometimes and after a wile it starts but enters in the dbi err fatal screen!!! I did some research and I reboot the PC because of the Driver installing, didn't work, I installed another driver and reboot the PC and it still doesn't work!!! I did a lot of research and I can't enter the firmware update mode!!! Please help me!!!

[Q] Verizon LG G Pad VK810 Secure boot error. No TWRP

Before posting I tried looking through every thread after I searched for this but it seems that there was always TWRP to fall back on.
Here's my problem thus far. Rooted my G Pad on Lollipop successfully. Followed this guide after rooting, to install TWRP recovery.
http://forum.xda-developers.com/lg-g-pad-83/general/vk810-altev-complete-root-recovery-t3108260
Followed the first step to downgrade the aboot to 4.2.2, then restarted the tablet like an idiot as I glanced at the wrong browser tab with a different tutorial open. I did NOT follow the second portion of the tutorial to get TWRP even installed and I'm sitting here with the Secure Booting Error in the top left corner. Cannot access download mode, factory reset, normal reboot or safe boot without getting that error. Any help here at all or is this the first time I'm SOL with a device.
UPDATE!
Managed to actually get it into download mode after 20+ tries of just rebooting and trying. Will update if I can successfully reflash with LG Flash Tool or not.
You should be able to flash it no problem since you're in Download mode. FYI, although it doesn't work all the time, someone in my ROM thread found a way to flash aboot (for instance, to flash the Lollipop aboot so you could get back into the ROM) from Fastboot mode. That is, they found a way that sometimes works to get into Fastboot mode.
Also, there's a chance you could perform the required steps to get TWRP installed via ADB with the tablet in Download mode. Not sure, though, since I haven't tried it.
I can certainly experiment, now that I've realized I can fall back on download mode if things go wrong. Flashed the Lollipop KDZ with no problem in download mode so at least the tablet is up and running to take another crack at. Thanks a ton for actually having those KDZ's so readily available being linked in your signature.
Sayt123 said:
I can certainly experiment, now that I've realized I can fall back on download mode if things go wrong. Flashed the Lollipop KDZ with no problem in download mode so at least the tablet is up and running to take another crack at. Thanks a ton for actually having those KDZ's so readily available being linked in your signature.
Click to expand...
Click to collapse
Cool, you're welcome mate!
roirraW "edor" ehT said:
Cool, you're welcome mate!
Click to expand...
Click to collapse
Ended up just downgrading to 4.2.2, using towelroot, and loki_flash\twrp. Enjoying CM12 now. Will probably update the original post with instructions in case someone makes the same mistake as me for some reason.
I'm Having the Same Issue
I cannot get download mode to work. Just the Lg symbol, and secure booting error in top left.
I charged it overnight, plugged into a wall, with it off.
Held both vol keys while off, and plugged into cpu using the original/undamaged cable. Tried a different cable that also works, and tried plugging it into the computer both ways (OFF and plugged in the computer first, then the tab, and vice versa.)
Was there any other trick you had getting into DL mode???
Any help is appreciated.
UPDATE: So i left the tablet plugged in, and just kept rebooting it, and held just power and vol up, and now, in a barely visible screen, it says download mode, but my computer thinks there's nothing connected. With 2 different cables, and 2 different flash tools saying this, even with correct drivers installed.
segadennisis76 said:
I cannot get download mode to work. Just the Lg symbol, and secure booting error in top left.
I charged it overnight, plugged into a wall, with it off.
Held both vol keys while off, and plugged into cpu using the original/undamaged cable. Tried a different cable that also works, and tried plugging it into the computer both ways (OFF and plugged in the computer first, then the tab, and vice versa.)
Was there any other trick you had getting into DL mode???
Any help is appreciated.
UPDATE: So i left the tablet plugged in, and just kept rebooting it, and held just power and vol up, and now, in a barely visible screen, it says download mode, but my computer thinks there's nothing connected. With 2 different cables, and 2 different flash tools saying this, even with correct drivers installed.
Click to expand...
Click to collapse
Hi, glad you at least found out the right button combo for Download mode. Can you be specific about the drivers you installed? Were they "LG_VZW_United_WHQL_v2.22.0.exe"?
Try rebooting after installing the drivers, with the tablet unplugged from the PC. After the reboot is finished, put the tablet in download mode and plug it into the PC. It can take up to 10 minutes to load the drivers once you plug it in. Use a USB 2.0 port preferably. Of the two cables you tried did you use the original cable? That's preferred, also.
You can look in Device Manager in Windows and see if the driver is still loading for the Android device listed under the "Modem" section. If after 10 minutes it still hasn't loaded the driver, try a different USB port. Lastly, if you need to, try a different PC. I know it's possible you don't have easy access to a different one, but sometimes that's the solution.

LG G3 wont turn on

Hi everyone
I having this problem with my lg g3 d855 ... My phone was at 5% then i wanted to remove kingroot because i wanted to flash super su. After uninstalling kingroot (in the app) the app crashed ant after few seconds my phone turned off... i was thinking my phones battery just died, but i was wrong. My phone wont turn on now :/... Only response i get from it then i plug it in the charger without battery (it show no battery error)... then i put battery in, screen goes blank.
And also i installed twrp using app from store (Forgot the name, but for d855 model)
*LG G3 D855 Android 6.0 official* (if needed.)
i tried:
holding power button for 15sec without battery and then charging it... Didn't work :/.
Putting another battery (Galaxy s3... Charged to 30% at least. I don't have another lg battery ), same result.
New battery also doesn't do anything...
EDIT:
i tried method in http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359 but i can't find nor make .tot file :/ anyone can link mby?
and there's exclamation mark near Qualcomm HS-USB QDLoader 9008(COM13) in device manager. Maybe there's a problem with that?
Help guys
EDIT V2!!:
Thanks for nothing
i fixed my lgg3 with this tutorial http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
and flashed files in this order http://forum.xda-developers.com/spr...very-guide-t3132359/post65291398#post65291398
after that i put phone into download mode and flashed kdz file i had
at least someone responded to this post :/
It works now!..
The problem was autorec... i tried to install recovery using autorec for lollipop and that screwed everything
I have exactly the same problem.
Hamtero said:
I have exactly the same problem.
Click to expand...
Click to collapse
i fixed my lgg3 with this http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
and flashed files in this order http://forum.xda-developers.com/spr...very-guide-t3132359/post65291398#post65291398
(i installed slb1 without battery and then unpluged phone, put battery, hold volume up, putted usb back into phone and tried to put phone into download mode. IT WORKED!! )
And Thanks for replay
I was in the middle of unbrick my g3 from hard brick to soft brick. I flash firmware using lg up at 99% then the phone died as it tried to reboot. It won't boot at all. As you said when remove the battery and connect charger, i can see my motherboard working with exclamation mark. As soon as i put the battery, motherboard out and no sign of life. Is this sign of bad battery or what. I don't have spared battery
I recommend first, to users with similar problems, to try first my guide in following link and after the pins in motherboard-tot files
https://forum.xda-developers.com/lg-g3/general/root-twrp-marshmallow-d855-30b-t3286268/page116
Superuser_ said:
I recommend first, to users with similar problems, to try first my guide in following link and after the pins in motherboard-tot files
https://forum.xda-developers.com/lg-g3/general/root-twrp-marshmallow-d855-30b-t3286268/page116
Click to expand...
Click to collapse
I have D858HK hard bricked for 2 month and i use v10d to flash every partition. Then it won't boot into recovery. When i use v985 .tot, it successfully boot into recovery. Also on LG Smart Board diagnostic, my model not detected. Even if i manually select, nothing happen when it reboot. Right now, i have no idea whats wrong as i spent countless of hour on google and XDA.
anip_aniki said:
I have D858HK hard bricked for 2 month and i use v10d to flash every partition. Then it won't boot into recovery. When i use v985 .tot, it successfully boot into recovery. Also on LG Smart Board diagnostic, my model not detected. Even if i manually select, nothing happen when it reboot. Right now, i have no idea whats wrong as i spent countless of hour on google and XDA.
Click to expand...
Click to collapse
Have you try my guide?
Superuser_ said:
Have you try my guide?
Click to expand...
Click to collapse
I already follow your guide. The thing is, my device not detected on LG Smart Board Diagnostic. When i manually select my device, everything ok then it boot with blank screen with red and blue led. I can't even enter download mode. I use win 10 64bit with all driver installed and disable integrity checks and everything

I think I might've hard bricked my phone!

I tried uninstalling xposed from my phone by recovery and it caused my phone to go into a bootloop, I entered recovery and tried to do a factory reset to see if that'll fix the problem but now my phone gets stuck on the "SONY" screen and I can't get past that. Even connecting a USB to my computer doesn't detect it, Is there anyway to fix this? :crying: :crying: :crying:
Get flashtool if you don't already have it, then download the firmware for your exact device model, then click the Lightning button and then follow its steps
I've tried that already but my PC doesn't detect the phone, I can't even get it into a fast boot mode. It only charges my phone when I connect a USB. Edit: It's fixed now, I was using the wrong USB. Thank you!

Categories

Resources