Develop Bugs

[Q] My LG G3 GOT HARD BRICKED!!!! HELP

My LG G3 (T-Mobile) got hard bricked i don't really know y but i did mess with some tweaking apps to boost the phones performance and after that the phone started to glitch BADLY i couldnt even unlock the screen it was so gitchy and errors kept poping up it woudlt let me click the screen so i tried formatting it and the problem persisted, now after trying that i attempted to flash stock ROM again and now its now ****ed ithe screen is all black the screen DOESNT turn on cant use it just a paper weight but when plugged in to the computer this pops up QHSUSB__BULK please help i can pay 175$ for the insurance to replace but i rather try to do it my self

RESTORE
NoMurrcy said:
My LG G3 (T-Mobile) got hard bricked i don't really know y but i did mess with some tweaking apps to boost the phones performance and after that the phone started to glitch BADLY i couldnt even unlock the screen it was so gitchy and errors kept poping up it woudlt let me click the screen so i tried formatting it and the problem persisted, now after trying that i attempted to flash stock ROM again and now its now ****ed ithe screen is all black the screen DOESNT turn on cant use it just a paper weight but when plugged in to the computer this pops up QHSUSB__BULK please help i can pay 175$ for the insurance to replace but i rather try to do it my self
Click to expand...
Click to collapse
Try restoring with stock rom.
1. download the latest firmware (http://lg-firmware-rom.com/)
2. Follow the below thread for the steps to install it.
http://forum.xda-developers.com/showthread.php?t=2772199

NoMurrcy said:
My LG G3 (T-Mobile) got hard bricked i don't really know y but i did mess with some tweaking apps to boost the phones performance and after that the phone started to glitch BADLY i couldnt even unlock the screen it was so gitchy and errors kept poping up it woudlt let me click the screen so i tried formatting it and the problem persisted, now after trying that i attempted to flash stock ROM again and now its now ****ed ithe screen is all black the screen DOESNT turn on cant use it just a paper weight but when plugged in to the computer this pops up QHSUSB__BULK please help i can pay 175$ for the insurance to replace but i rather try to do it my self
Click to expand...
Click to collapse
Had the same problem too, but every method I tried didn't work. So I used the warranty for LG and they're repairing/replacing the phone. You need to email or talk to a LG representative.
The only thing you have to pay is shipping and the rest are free.

xmagiicsx said:
Had the same problem too, but every method I tried didn't work. So I used the warranty for LG and they're repairing/replacing the phone. You need to email or talk to a LG representative.
The only thing you have to pay is shipping and the rest are free.
Click to expand...
Click to collapse
I have the same issue (hard bricked g3) but this definitely isn't under warranty, I got it from a friend cause I figured it'd be soft bricked, but nope it's completely unresponsive, besides QHSUSB__BULK

Ummm, tried formatting what? There is factory reset, restore, but formatting?

Did you try KDZ flash or TOT flash?
If one fails, try the other.
KDZ wouldn't work for me, but the TOT flash method worked like a charm to flash my D852.
If you can see ANYTHING at all on your screen, recovery menu, download mode screen, anything at all, then it's very likely your device can be fixed.
But if you can't see anything whatsoever on your screen, like no recovery screen, no download mode screen ect then it's hard bricked and must be repaired by the hardware vendor.
EDIT: Here are a few other common reasons for failed flashing:
1. Make sure you're using the LGUnitedMobileDriver
2. Try a different usb port (front and rear usb ports can act dramatically different from eachother).
3. Try a different usb cable.
4. Try a different computer to flash.

I just got my phone repaired from LG and I recieved it two weeks after I sent it the phone to LG. They repaired my phone but they deleted everything

[Q] No booting at all - HELP FIX PLEASE!

I was using this method to root my phone: https://www.google.com/url?sa=t&rct...-VIhhUe3eupYY1bKA&sig2=MyzZOys2QGrlPe6Pwlh_AQ
& I was stupid and combined the 20B file with the 10R file and then also didn't label TWRP as boot.img as the installer tells me to do as I overlooked that.
Now, I can plug in my phone and my computer recognizes it (Windows). I can't view any files though I just hear the sound that something via USB got connected.
I've tried taking out the battery and unplugging it and pressing the power button for 60+ seconds and then putting it back in and trying to go into download mode. It doesn't seem to work. THough I hear the sound of it plugging into the computer.
So, I tried the LG Flash Tool. It fails at model information check. Then has a bunch of zeros after that.
I tried LG Flash Tool 2014 and all of the KDZ files I had on my computer (as I was unrooting just last night and trying to fix stuff and had KDZ files that worked for me to unroot). Well, that fails with all of the files.
Since that didn't work, I've been googling stuff and decided to try the original tool I had and that's when I noticed I didn't rename TWRP to boot.img and I combined 20B with 10R and figured out my problem. So now aboot and laf don't match the software that the phone has installed on it. For this reason, I can't do anything with my phone.
I'm assuming this is a hard brick. How do I fix this? I need my phone TODAY like an hour ago. :/ I was stupid to try and re-root. Ugh.
Can someone help me please?!
EDIT: I tried the LG Mobile Support Tool and I was able to get to the Install USB Driver section. I clicked it and it loads but nothing happens. So, I clicked options > Upgrade Recovery. I entered my IMEI number and it went through the steps and one of my batteries was low so I changed it out and went back through and it stops randomly and tells me to do the Upgrade Recovery which I was already doing. :/
EDIT 2: Tried uninstalling and reinstalling the driver from the device manager and then re-ran LG Flash Tool but it stopped at the model info check fail again. So I tried all of the USB ports on my computer and they all stopped at the same error.
EDIT 3: I can't find my iPhone so I really need this fixed. I just want to be clear that I tried these methods as well and nothing has worked thus far: http://forum.xda-developers.com/showthread.php?t=2785089
I checked the LG website for drivers and such as well so everything should be A'OK from that point of view. I even tried my USB 3.0 that are in the front of my computer.
EDIT 4: Still no luck. Been searching google and other places. I tried fastboot and adb but my phone isn't recognized by those so I can't do those. I want to try and flash the files I found here: http://forum.xda-developers.com/showthread.php?t=2766437
As I know that will help but without fastboot working, I don't see how I can get the files to be seen. Even if I were to put them on my MicroSD card, I don't see how I could flash them onto my phone. :/ That's all I need are the aboot_XXX.img and laf_XXX.img files fixed. UGH
EDIT 5: Called T-Mo to get a replacement. That will be here Monday. Until then I am doing my best to try and figure out how to fix this. I am severely upset by this. Found my iPhone so I won't be without a phone I'll just be upset until UPS gets here on Monday.

Well I hope this is a lesson for you. Unless you are absolutely sure you know what you are doing you read, read, read, and read some more. No where in that thread says you can do this on the d851, we have a unlocked bootloader and do not need bump. About your tot problem you can find generic dll that will not care what you're flashing. Be safe and stay out of the international threads from now on. I was a little harsh but I can kind of understand how that happen to you, that OP is a cluster f***

ThePagel said:
Well I hope this is a lesson for you. Unless you are absolutely sure you know what you are doing you read, read, read, and read some more. No where in that thread says you can do this on the d851, we have a unlocked bootloader and do not need bump. About your tot problem you can find generic dll that will not care what you're flashing. Be safe and stay out of the international threads from now on. I was a little harsh but I can kind of understand how that happen to you, that OP is a cluster f***
Click to expand...
Click to collapse
I was using bump??? Damn that explains it I thought it was something else... Well I can at least use the phone to charge my batteries for Monday when I get the new phone. I just hope they don't charge me for this phone. I'm still under warranty.
Sent from my iPhone 6 128GB SG using Tapatalk

DudeThatsErin said:
I was using bump??? Damn that explains it I thought it was something else... Well I can at least use the phone to charge my batteries for Monday when I get the new phone. I just hope they don't charge me for this phone. I'm still under warranty.
Sent from my iPhone 6 128GB SG using Tapatalk
Click to expand...
Click to collapse
They can charge you as u violated the terms of the warranty....whether they do or not we will see.
Sent from my LG-D851 using Tapatalk

I recently had a problem with my phone and I was able to restore using TOT and KDZ files but my phone kept power cycling over and over. I sent it to LG and they replaced the usb port and the screen as I had put a dent through the back where the battery goes and they replaced all the parts and I guess a new board due to the power cycling due to flashing ota with twrp. It looks like a brand new phone but it's mine because the IMEI was the same. I would try to flash it using the TOT method and if it still doesn't work then send it to LG, the worst they can do is send it back. All I paid was 10.00 bucks for the box. Everything else was covered including shipping back to me. Go via the LG website and they will give you a free FedEx label and a Case #.
Good luck

vicvega said:
I recently had a problem with my phone and I was able to restore using TOT and KDZ files but my phone kept power cycling over and over. I sent it to LG and they replaced the usb port and the screen as I had put a dent through the back where the battery goes and they replaced all the parts and I guess a new board due to the power cycling due to flashing ota with twrp. It looks like a brand new phone but it's mine because the IMEI was the same. I would try to flash it using the TOT method and if it still doesn't work then send it to LG, the worst they can do is send it back. All I paid was 10.00 bucks for the box. Everything else was covered including shipping back to me. Go via the LG website and they will give you a free FedEx label and a Case #.
Good luck
Click to expand...
Click to collapse
I already did. Nothing. Finally got my replacement g3 and everything works. Was able to root and install lollipop ROM. Works like a charm.

Weirdest brick ever

So I have an H815 and I was running the 7HD custom rom. I never had problems with my G4 until yesterday. I was at work and I got on the facebook app, then the phone froze. It then powered down and I got stuck in an infinite bootloop. I flashed a stock KDZ and still nothing. The phone turns on and is able to fully get into download mode. It does not do anything, it gets interrupted doing whatever it is doing and just powers of randomly and reboots. It rarely gets into the Android OS. I have done a regular flash and an emergency flash and still no luck. It's safe to say all my files are erased. And now it looks like I finally have a paperweight. Any help would be nice.

This happened to me on my H811. I suspected a storage failure in my case, as I couldn't do anything to help the phone, and it would always get to some point of loading before quitting on me.
Sent from my LG-H811 using Tapatalk

that sucks...
and with LG warranty removal good luck for telling them that this happens DURING normal usage and not during flash or something else

That happened to me on another phone. The problem was the eMMC (Flash Memory) died.

I was able to get a warranty replacement quite quickly by contacting the T-Mobile T-Force on Facebook. I'd recommend doing the same so you can have a fresh device in about 2 days.

This is the international version though. I do have T-Mobile service, but I dont know if they would replace a phone that I never bought from them in the first place. I might just have to get a new one.

I'm guessing it's the flash storage that died on my H815T (after flashing a backup I made of the system partition). I hope this doesn't indicate a problem with the durability of the G4's internal storage.

I bricked my rooted g4 and lg fixed it with a brand new phone no questions asked. Got lucky ?
Sent from my LG-H812 using XDA Premium HD app

How would I reach them? I remember I tried to ge a warranty replacement but I never got a reply..How did you do it?

ROOTED VZ G4 Bootloop - Will this break my warranty?

XDA,
I just got into a bootloop while on the Facebook App and I pressed the home button. I read that it happens to random people, but I want to make sure that I am safe.
I rooted roughly 5 months ago, when I got this phone and I've never had an issue.
What are my options? If I call VZ/LG will they accept my rooted phone? Or can I fix this bootloop? Will using this method http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848 help me ?
Thank you,
-J
EDIT: My phone booted up, the apps were optimizing, but then it just rebooted back to the LG screen and now it's stuck there.

[removed by dentralp]

dentralp said:
Don't want to do fear mongering just keep people in the know...
If you are stuck on LG screen you could have the same issue as;
http://forum.xda-developers.com/g4/help/lg-g4-stuck-bootloop-t3268734
I had full bootloops apart from when MM was installed, it just sat there on the LG logo. Could be that your on MM with the issue?
I have tried LG Bridge, Flash Tool and LG Up with various different roms, both LP and MM nothing worked.
Mine is also Rooted, with the bootloader unlocked. LG UK have been sat with my phone for over a month - hopefully I will find out soon if they have fixed it using the warranty - but even if they do, mine is with LGUK not LGUS ...
Think what I am trying to say is, try all the methods and if it doesnt work send it for RMA with your fingers crossed :/
Click to expand...
Click to collapse
Just so I understand you, I basically have to RMA my phone? All the other options seem like they resulted in a bootloop. And RMA I'm assuming you mean using warranty?
And I'm not on MM.
Just out of curiosity, would the fact that I rooted my phone disqualify me for using mywarranty?

I guess you rooted with injected system.img. If you can go to download mode you could write the original system.img back, so then you are not rooted. Or you could write a KDZ file in LGUP.

ObiDanKenobi said:
I guess you rooted with injected system.img. If you can go to download mode you could write the original system.img back, so then you are not rooted. Or you could write a KDZ file in LGUP.
Click to expand...
Click to collapse
As far as I'm aware, simply restoring an original unrooted system.img backup will still show "Modified" in the download mode status, once it's been rooted. The only way to clear that status is by flashing the KDZ. (You can still keep your personal data with that option though.)

iamjerry123 said:
XDA,
I just got into a bootloop while on the Facebook App and I pressed the home button. I read that it happens to random people, but I want to make sure that I am safe.
I rooted roughly 5 months ago, when I got this phone and I've never had an issue.
What are my options? If I call VZ/LG will they accept my rooted phone? Or can I fix this bootloop? Will using this method http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848 help me ?
Thank you,
-J
EDIT: My phone booted up, the apps were optimizing, but then it just rebooted back to the LG screen and now it's stuck there.
Click to expand...
Click to collapse
Based on what I've read in the main bootloop thread, the bootloop issue is a hardware problem that requires the phone motherboard to be replaced so I don't think they will be able to detect the root during the RMA process:
...
I have received confirmation from LG that series from May, June, July and August are afflicted by this issue and that the revision number doesn't matter. They also said that it is not necessary that all phones in these series will fail, but that under certain circumstances (not disclosed to me) they will start producing the bootloop issue which is h/w bound.
...
Update: It seems not all bootloops are due to deffective motherboard as on some phones they were able to detect the root and refused the repair under warranty.
So maybe for some G4's stuck in bootloop there might be a solution to be soft repaired.
I saw this in another thread, can you try this?:
...
Using DL mode (device off -> press and hold volume up while(!) connecting to PC) and LGUP you should be able to push any KDZ on your device and get out of the boot loop.
...
I don't have the bootloop problem so I can't test it but it might.
What's the build date of your G4 (between May-August 2015?)? What are the 1st 3 digits of your phone's S/N?

If you root any phone you automatically void your warranty. There's no exception to this and I actually understand why they do that because most people don't need to be rooting their phones lol but if u find a KDZ you're str8, use the flashtool and you'll never get into a permanent bootloop and you can use your warranty. But most likely something you modified or something another app was doing caused the bootloop not a hardware issue. Also it'd probably the last thing you ever even thought that caused it lol
Sent from my VS986 using Tapatalk

Have you tried a hard factory reset? Usually helps

stuck on LG boot screen not rooted

Hey guys my verizon g4 is stuck in bootloop and im not rooted, i cant get the past the lg boot screen, it stays on their for around 20 seconds goes black and back to lg screen.
I can get into recovery but none of the options do anything ive tried safe mode, usb debug mode i even tried factory reset they all just go back to the lg screen.
I was just watching a video on facebook when it froze restarted and now im stuck, ive been restarting it all day and i was able to get it to boot up twice but it froze again within seconds any help is appreciated

it might be the defective motherboard issue that people are having. you could try reflashing the system, but if that doesn't work you probably need a new motherboard/phone

Not an answer, but an experience.
I have an HTC ONE M8, VZW. I s-offed it and rooted it right when I got it. I began adding some of my google apps and it did what your G4 is doing, stuck on VZW screen.
Since I was s-off I was able to get a recovery in and ready. I was able to get a custom rom onto the phones external sd. I flashed it with the recovery and the flash took, no more vzw screen lock up.
Your experience makes me wonder what VZW is doing to force bootloops on unlocked or rooted phones with their retail products. Paranoid maybe, but I can see VZW deliberately adding code to stick it to rooted users.....................................I say this still knowing that many have rooted the current run of devices without issues...........................
luck

i read about the problems with the motherboard going bad, im assuming thats what happened to mine. Lg sent me a replacement under warranty

Update!
i called verizon they sending me a replacement. just to let you know i flashed 13B KDZ but the bootloop was still there i let my phone on and finally turned on quickly i did a factory reset and booted up normal and its working again. still im gonna send it back. just sharing my experience maybe for other people might work too.

killa408shark said:
Update!
i called verizon they sending me a replacement. just to let you know i flashed 13B KDZ but the bootloop was still there i let my phone on and finally turned on quickly i did a factory reset and booted up normal and its working again. still im gonna send it back. just sharing my experience maybe for other people might work too.
Click to expand...
Click to collapse
What is the 13B KDZ and how did you flash it? Im having same exact issue.

My G4 tanked over the weekend. I was browsing news and the phone locked up, then it shut off and turned back on. It just bootloops now. If I stick it in the freeze for a few minutes, sometimes it will boot to the OS where it starts to optimize the apps. It will get through about 20 before it shuts off and starts the bootloop process again. I haven't even been able to get the download mode to stay on, and when it does enter download mode, it is not detected by the computer. I think my problem is the motherboard. I'm just hoping that they aren't able to figure out I had it rooted!
I'm still waiting to hear back from Verizon about a replacement.
Does anyone have any ideas on how I can flash a stock rom back on this thing to try to save my tail? I am betting not since the phone won't stay on long enough to even flash the rom.

b3y0ndd34th said:
My G4 tanked over the weekend. I was browsing news and the phone locked up, then it shut off and turned back on. It just bootloops now. If I stick it in the freeze for a few minutes, sometimes it will boot to the OS where it starts to optimize the apps. It will get through about 20 before it shuts off and starts the bootloop process again. I haven't even been able to get the download mode to stay on, and when it does enter download mode, it is not detected by the computer. I think my problem is the motherboard. I'm just hoping that they aren't able to figure out I had it rooted!
I'm still waiting to hear back from Verizon about a replacement.
Does anyone have any ideas on how I can flash a stock rom back on this thing to try to save my tail? I am betting not since the phone won't stay on long enough to even flash the rom.
Click to expand...
Click to collapse
+
My phone was rooted and got into the bootloop also and I sent it in as is and nothing happened. So I think it would be fine to send it without the stock rom.

mainlygreen said:
+
My phone was rooted and got into the bootloop also and I sent it in as is and nothing happened. So I think it would be fine to send it without the stock rom.
Click to expand...
Click to collapse
Thank you for this information, this makes me feel a little better!
The replacement is already in the mail!

same issue of mine I was out then it cut off & wouldn't come back on but now it charges up & makes it to the boot screen

b3y0ndd34th said:
Thank you for this information, this makes me feel a little better!
The replacement is already in the mail!
Click to expand...
Click to collapse
did you send the faulty unit first or they are sending it on your complaint. I am outside US and my G4 got bootloop issue n i was wondering how to get the replacement through somebody as i wont be coming for another year.
thanks

bhuvesh89 said:
did you send the faulty unit first or they are sending it on your complaint. I am outside US and my G4 got bootloop issue n i was wondering how to get the replacement through somebody as i wont be coming for another year.
thanks
Click to expand...
Click to collapse
They mailed me a new one, no battery, no back. I put my battery, sim card, sd card, and back on the new phone, fired it up. Rolled it back, rooted it, then I mailed the old one back.
Personally, I love this phone, but I think I will be getting a nexus next.