Develop Bugs

LG G4 qhsusb_bulk After update .

Hello Xda
I tried to update my phone using LG Tool , But while the update process my PC shut down randomly . and my LG won't work anymore at all
but when i connect it to my PC , it recognize the mobile as qhsusb_bulk .
Please Advice ....
Thank you all

Sorry to be the bearer of bad news, as you've guessed it though. Looks like you got a brick in the oven and can't feed your droid any new data now. Unfortunately, I don't know of any sure shot methods that will bring it up to par. I suggest either contacting verizon for a new device or the insurance for a new device. Maybe someone who's working on the bootloader, if there are any can help you but by the sound of it, you need a funeral service for your device. Sorry for the fluxed luck. Who knows though, I am not always 100,000% accurate with devices which aren't in front of me to tinker with. Best of Everything lucky to ya though.

justlovejoy said:
Sorry to be the bearer of bad news, as you've guessed it though. Looks like you got a brick in the oven and can't feed your droid any new data now. Unfortunately, I don't know of any sure shot methods that will bring it up to par. I suggest either contacting verizon for a new device or the insurance for a new device. Maybe someone who's working on the bootloader, if there are any can help you but by the sound of it, you need a funeral service for your device. Sorry for the fluxed luck. Who knows though, I am not always 100,000% accurate with devices which aren't in front of me to tinker with. Best of Everything lucky to ya though.
Click to expand...
Click to collapse
Yeah I felt it's so complicated , I have some experience on Rooting and dealing with software issues , but this on is totally new for me.
Thank You Sir

Man that's a huge bummer, sorry to hear. If you have a spare phone and don't mind sitting on that one for a while eventually the files should be available to fix this but no eta is known.

MrSrojy said:
Hello Xda
I tried to update my phone using LG Tool , But while the update process my PC shut down randomly . and my LG won't work anymore at all
but when i connect it to my PC , it recognize the mobile as qhsusb_bulk .
Please Advice ....
Thank you all
Click to expand...
Click to collapse
This happened to me too, but i didnt use the LG Flash Tool cause it wasnt working for me so i used LG UP instead. I flashed the right .kdz file for my model and everything but when it finished flashing it remained in a bootloop and now it wont turn on. whenever try to put it in dl mode it doesnt show up with the screens i just see it connected as qhsusb_bulk in the device manager.
i have the open international version so im guessing bootloader so im gonna wait for fix files :fingers-crossed: although its gonna be a while im pretty sure :crying::crying::crying:

blap017 said:
Man that's a huge bummer, sorry to hear. If you have a spare phone and don't mind sitting on that one for a while eventually the files should be available to fix this but no eta is known.
Click to expand...
Click to collapse
What are the files that one would need to fix this? Have they been released now? I've got a phone being recognized as a QHSUSB_BULK as well, and I'm wondering if these files would revive mine as well.

https://forum.xda-developers.com/tmobile-g4/general/lg-g4-h811-complete-unbrick-guide-100-t3461629 do some google searches for lg g4 unbrick tool then read and read and read.

Issues new g4 owner

1- if i use yhe music player then use the bottom square button to get back into that app it restarts the song. Does this happen to you as well?
2-not sure this happens to others but adjusting Brightness and then exiting the notifications i notice the screen flicker after
3 seconds.
3-I come to click a link or play a video and it asks me what app to use. Even when i click the box use as dedault app.
4- dont like the app icon designs so bought retrorika icon pack. Also downloaded nova launcher but i have no idea how to run either.
Any help appreciated

No one anyone soneone?

Reflash the stockfirmware using lgup or lg flash tool 2014...u can try flashing different marshmallow versions like v30e or v30f of ur model see if it persists

Thanks for the reply
I have no idea how to do a flash. I never unlocked a bootloader ever. I really dont know android well. Ive jb ios but no experience with these things. Any guide would be great
Btw im not in the us if it matters so not sure if this is specific to us phones or not

rocketman122 said:
Thanks for the reply
I have no idea how to do a flash. I never unlocked a bootloader ever. I really dont know android well. Ive jb ios but no experience with these things. Any guide would be great
Btw im not in the us if it matters so not sure if this is specific to us phones or not
Click to expand...
Click to collapse
http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848

rocketman122 said:
Thanks for the reply
I have no idea how to do a flash. I never unlocked a bootloader ever. I really dont know android well. Ive jb ios but no experience with these things. Any guide would be great
Btw im not in the us if it matters so not sure if this is specific to us phones or not
Click to expand...
Click to collapse
Check youtube videos tutorials on how to flash kdz file on g4 ofcourse u first have to know what ur model number is if u need more help private message me ..hit like it helps

Flashing will void warranty? I just got the phone. Its refurbished actually.

rocketman122 said:
Flashing will void warranty? I just got the phone. Its refurbished actually.
Click to expand...
Click to collapse
No rooting will void warranty ...

rocketman122 said:
Flashing will void warranty? I just got the phone. Its refurbished actually.
Click to expand...
Click to collapse
you are flashing a stock LG firmware and you dont need open bootloader... just program and file..

My G4 H815 belivies it is a h818

Hi,
After upgrading from 5.1 to 6.0 my G4 got some issues.
First of all when i turn it one never turns the creen on. I had to do a work around using the USB cable to get the screen on and that doesn't wark very often eatheir so its preatty annoing.
Second the sim is not working.
I tryed many time to roll back or flash a new firmware but it didnt work.
I also find out when the phone is in download mode that is says LG-H818 but mine is fore sure a H815.
Is it some way to fix it?
Thanks

What rom did u flash mind sharing here ? Or was it OTA?

jinderation said:
What rom did u flash mind sharing here ? Or was it OTA?
Click to expand...
Click to collapse
I just connected the phone to LGBridge and it notified the marshmallow update. I dont' know why it flashed a h818 rom

Does anyone know if there is a way to put the H815 firmware back? right know it believes to be a h818 so it doesnt allow me to flash it. WIth the h818 doesnt even turn on right now

Is ur phone recently repaired by lg or did u bought it used ? Cuz there is no way lg bridge can make mistake on ur g4s varaint...either someone u bought off tried to change the buid prop file to make u believe its h815 or ur phone is refurbished/repaired using components n sensors of other model

I bought it from a guy and the phone was totally new ( it had all the protection film on it and even the box was sealed).
I'm starting to think it was regenerated but i dont understand how could it be the dual sim one.
Do you have any suggestion how to fix it? right now i can just uplad h818 firmware from lgup but of course they are not working

Scaf13 said:
I bought it from a guy and the phone was totally new ( it had all the protection film on it and even the box was sealed).
I'm starting to think it was regenerated but i dont understand how could it be the dual sim one.
Do you have any suggestion how to fix it? right now i can just uplad h818 firmware from lgup but of course they are not working
Click to expand...
Click to collapse
Its probably refurbished ...if i were u i wont try to tinker any software things u might probably brick it so most probably leave it as it is good thing to know that atleast ur phone wont bootlooop like the rest...try contacting the person u bought it from or check it if its under warranty by lg from him

Right now its already rebooting aftern turning on, so i can not se how could damage it more. Any suggestion for possible solution?

Scaf13 said:
Right now its already rebooting aftern turning on, so i can not se how could damage it more. Any suggestion for possible solution?
Click to expand...
Click to collapse
If u have warranty send it to lg u dont have any other options left...next time dont buy cheap refurbished phones n also dont buy lg

Scaf13 said:
Hi,
After upgrading from 5.1 to 6.0 my G4 got some issues.
First of all when i turn it one never turns the creen on. I had to do a work around using the USB cable to get the screen on and that doesn't wark very often eatheir so its preatty annoing.
Second the sim is not working.
I tryed many time to roll back or flash a new firmware but it didnt work.
I also find out when the phone is in download mode that is says LG-H818 but mine is fore sure a H815.
Is it some way to fix it?
Thanks
Click to expand...
Click to collapse
Is it a refurbished phone ?

HELP needed

I bought a g4 near a week ago and it says on the back sticker that its H811 but when i entered download mode it was korean and i found something mentioning f500 any way i flashed 20r kdz for h811 and phone bricked(9008 mode)then i used ls991 mbn file to use in QFIL and revive my phone now when i flash any kdz for h811 phone bricks and i have to flash mbn files again however the phone boots up but no camera no imei no baseband im very confused can anyone help?
Any chance that flashing f500l tot file revive the phone?
Thanks.

shamescool said:
I bought a g4 near a week ago and it says on the back sticker that its H811 but when i entered download mode it was korean and i found something mentioning f500 any way i flashed 20r kdz for h811 and phone bricked(9008 mode)then i used ls991 mbn file to use in QFIL and revive my phone now when i flash any kdz for h811 phone bricks and i have to flash mbn files again however the phone boots up but no camera no imei no baseband im very confused can anyone help?
Any chance that flashing f500l tot file revive the phone?
Thanks.
Click to expand...
Click to collapse
may have to dissassmble the device and find out what motherboards on it weve seen cases like this before and its not easy i would return it and say wtf

TheMadScientist420 said:
may have to dissassmble the device and find out what motherboards on it weve seen cases like this before and its not easy i would return it and say wtf
Click to expand...
Click to collapse
you would say there is a chance to recover it or not?does it worth it?
Thanks for reply

shamescool said:
you would say there is a chance to recover it or not?does it worth it?
Thanks for reply
Click to expand...
Click to collapse
In my opinion no its not worth the hassle but ot only takes 5 mine to check ot 2. Unless its got the bootloop issue or hard bricked its fixable. But how determined are you.

TheMadScientist420 said:
In my opinion no its not worth the hassle but ot only takes 5 mine to check ot 2. Unless its got the bootloop issue or hard bricked its fixable. But how determined are you.
Click to expand...
Click to collapse
my phone boots up completely but no baseband no imei or anything and that infamous 9008 brick is fixable with ls991 laf.img and 8992.mbn and etc... files and here is my next approaches please if you have enough aknowledge guide me with these options i have or add any if something came on your mind:
1.Flashing a ls991 model kdz and see what comes out(probably not doable,lgup may not let me flash it)
2.while surfing through the forums and threads i found the exact H811 10N Laf.img and i will replace it with ls991's and will use QFIL to correct the partitions and then my phone would be fixed(im too scared for this one...maybe my phone is a refurbished F500...who knows? :fingers-crossed: )
3.Maybe finding and flashing F500 laf.img fix the phone but a HUGE problem i am facing:where to find that file?
Note:All i am trying to do is to fix this phone by software approaches and disassembling the phone is out of my options for now(only will do if none of above fix it properly)
So with all of that what would you do if you be in my shoes?:cyclops:
Always hated LG and admired Sony but i started to hate xperia x series because of weak development so i bought this one for around 100$ in your currency.:laugh:

Id send it back.

TheMadScientist420 said:
Id send it back.
Click to expand...
Click to collapse
My curiousity will kill me someday
I believe i can fix it and beside that learning new things about lg devices is interesting since i bought it for only 100 bucks from an old pal who does nt know what actually smart phone is:laugh:
Anyway i learnt how to extract laf from kdz files and im going to test both f500l and h811 and pray:cyclops:
if i fix it properly i would make a thread to share my experience with this refurbished(dont know actually if it is)
phone and help people who brick their refurbished phone and dont know how to fix it

shamescool said:
My curiousity will kill me someday
I believe i can fix it and beside that learning new things about lg devices is interesting since i bought it for only 100 bucks from an old pal who does nt know what actually smart phone is:laugh:
Anyway i learnt how to extract laf from kdz files and im going to test both f500l and h811 and pray:cyclops:
if i fix it properly i would make a thread to share my experience with this refurbished(dont know actually if it is)
phone and help people who brick their refurbished phone and dont know how to fix it
Click to expand...
Click to collapse
i use the old wilcracks diag toot and lg firware extractor to extract any bins u need

TheMadScientist420 said:
i use the old wilcracks diag toot and lg firware extractor to extract any bins u need
Click to expand...
Click to collapse
then i will use them to crack open kdz from both H811 and F500L firmwares to flash laf and other messed up files with fastboot
but im wondering which one should i try first because im concerned if i flash wrong files then there will be even no 9008 mode to use QFIL and get back to very first step...
What is going to happen exactly when i flash another varient's laf? will it kill the phone completely or will there be any 9008?
Thanks for those apps you mentioned btw:good:

shamescool said:
then i will use them to crack open kdz from both H811 and F500L firmwares to flash laf and other messed up files with fastboot
but im wondering which one should i try first because im concerned if i flash wrong files then there will be even no 9008 mode to use QFIL and get back to very first step...
What is going to happen exactly when i flash another varient's laf? will it kill the phone completely or will there be any 9008?
Thanks for those apps you mentioned btw:good:
Click to expand...
Click to collapse
yea ive been using em since g2.and i use em on all lgs . diag tool is for flashing but at the bottom u can extract
i get my own .dlls for lgg2 flash tool and i flash orig g4 firmware with it still.
if i could find the tot would for g5.
now if u break 9008 jtag i think is the only fix i dont know the pin outs or if the g4 even supports that like the g3 and 2. thats why i say take device apart its fricken easy there should be a sticker on the mother board or stamps that say the mbs model and go from there

TheMadScientist420 said:
yea ive been using em since g2.and i use em on all lgs . diag tool is for flashing but at the bottom u can extract
i get my own .dlls for lgg2 flash tool and i flash orig g4 firmware with it still.
if i could find the tot would for g5.
now if u break 9008 jtag i think is the only fix i dont know the pin outs or if the g4 even supports that like the g3 and 2. thats why i say take device apart its fricken easy there should be a sticker on the mother board or stamps that say the mbs model and go from there
Click to expand...
Click to collapse
dissembled the phone and it was f500l as expected so i decided to go with f500 laf.img and then my phone got fixed up completely ive even replaced modem and other h811 things except for system now my phone is working perfect again and im going to flash a stock based rom's system.img (10N) with fastboot
Thanks for your precious info once again:cyclops:

shamescool said:
dissembled the phone and it was f500l as expected so i decided to go with f500 laf.img and then my phone got fixed up completely ive even replaced modem and other h811 things except for system now my phone is working perfect again and im going to flash a stock based rom's system.img (10N) with fastboot
Thanks for your precious info once again:cyclops:
Click to expand...
Click to collapse
These guys will piece these things together and mislabel crap. Just to make a dollar. Im glad to see ure good to go.

TheMadScientist420 said:
These guys will piece these things together and mislabel crap. Just to make a dollar. Im glad to see ure good to go.
Click to expand...
Click to collapse
Actually LG devices are very easy to disassemble so people like them wont put so much effort to refurbish LG phones and earn themselves some easy money.
And believe me Iran is the heaven of refurbished and chinese phones
Mostly because many cant afford to buy their phones and other stuff from trusted sellers and they buy them with no warranty(or guarranty)from third party sellers.
Actually they have a place for themselves in downtown(Aladdin building).
But i wanted a flagship LG device to learn more about it and i got it for a couple of bucks so it really didnt matter if my G4 didnt work as expected.
But its always a pleasure to make some mystery and try to crack the case by yourself :laugh:

shamescool said:
Actually LG devices are very easy to disassemble so people like them wont put so much effort to refurbish LG phones and earn themselves some easy money.
And believe me Iran is the heaven of refurbished and chinese phones
Mostly because many cant afford to buy their phones and other stuff from trusted sellers and they buy them with no warranty(or guarranty)from third party sellers.
Actually they have a place for themselves in downtown(Aladdin building).
But i wanted a flagship LG device to learn more about it and i got it for a couple of bucks so it really didnt matter if my G4 didnt work as expected.
But its always a pleasure to make some mystery and try to crack the case by yourself :laugh:
Click to expand...
Click to collapse
the whole lg g series is a wonderful device for do it your self i have owned a g2 g3 g4 and now g5 even thought i said i would never by lg again after g4 i got a stylo3 and my wife sports a stylo 2
im working on a us cellular s5 now as we speak and i sometimes run my gs6 edge nut not much since i got g5.

TheMadScientist420 said:
the whole lg g series is a wonderful device for do it your self i have owned a g2 g3 g4 and now g5 even thought i said i would never by lg again after g4 i got a stylo3 and my wife sports a stylo 2
im working on a us cellular s5 now as we speak and i sometimes run my gs6 edge nut not much since i got g5.
Click to expand...
Click to collapse
of course they are great but hardware faults are pretty big deal but for me sony z series were better right until z3+ .for now im happy with my htc u11 and im not going to unlock it or anything.
maybe i use g4 as my secondary device instead of xperia z2.
its a shame that sony is not in its golden age (2011-2013) anymore...
will make a thread to help people like me to unbrick their refurbished device
Thanks for everything

LG G4 815 problem

hello guys
i bought a new lg g4 for my girl
i was surprised because it can't upgrade to android marshmallow via phone
i decide to update it via LG up
installation take place and when it get to 100% the phone shutdown
but screen was black there is only vibration, blue led and the sound of volume up and down when pressed
LG up still recognise the phone version
but when i want to reupdate it tells me that the version is wrong (i used the same as the first one)
i tried many versions but same result
please guys help me to get back the phone it's a real loss for me
thanks

mini-mario said:
hello guys
i bought a new lg g4 for my girl
i was surprised because it can't upgrade to android marshmallow via phone
i decide to update it via LG up
installation take place and when it get to 100% the phone shutdown
but screen was black there is only vibration, blue led and the sound of volume up and down when pressed
LG up still recognise the phone version
but when i want to reupdate it tells me that the version is wrong (i used the same as the first one)
i tried many versions but same result
please guys help me to get back the phone it's a real loss for me
thanks
Click to expand...
Click to collapse
https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Also spend some time searching how things work when flashing etc...

mini-mario said:
hello guys
i bought a new lg g4 for my girl
i was surprised because it can't upgrade to android marshmallow via phone
i decide to update it via LG up
installation take place and when it get to 100% the phone shutdown
but screen was black there is only vibration, blue led and the sound of volume up and down when pressed
LG up still recognise the phone version
but when i want to reupdate it tells me that the version is wrong (i used the same as the first one)
i tried many versions but same result
please guys help me to get back the phone it's a real loss for me
thanks
Click to expand...
Click to collapse
What version from Where did you Use?

uweork said:
What version from Where did you Use?
Click to expand...
Click to collapse
lollipop v10

RuedasLocas said:
https://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Also spend some time searching how things work when flashing etc...
Click to expand...
Click to collapse
thanks sir but i think it talks about normal flashing not my bricked phone

mini-mario said:
thanks sir but i think it talks about normal flashing not my bricked phone
Click to expand...
Click to collapse
Many times a phone becomes a brick because the tutorial "how to flash" was underestimated, people read them too fast, download any file, install everything randomly, everything very fast.... and later, oh... I ruined my phone!
Not saying that was your case, but it won't hurt you if you take a look again to the tutorials, and others fails and solutions.
Good luck!

mini-mario said:
lollipop v10
Click to expand...
Click to collapse
And what MM Version?
From which source?
Some more information about the way you bricked your phone

uweork said:
And what MM Version?
From which source?
Some more information about the way you bricked your phone
Click to expand...
Click to collapse
thanks guys for ur concern
after few trys i get to the download mode
please if there is a sure guide to process
thanks

mini-mario said:
thanks guys for ur concern
after few trys i get to the download mode
please if there is a sure guide to process
thanks
Click to expand...
Click to collapse
it was lg h815 v10 lollipop

mini-mario said:
it was lg h815 v10 lollipop
Click to expand...
Click to collapse
try this version
https://forum.xda-developers.com/showpost.php?p=73642302

Hi guys, I have prblem with rear camera in my lg g 4 . I chenged it with a new, but the prblem persit. Ftocmare appa crashes and I tried to restore it in anyway possible but nothing. Before go to retailer I would ask you I f you ha ve some hit and and shere our experience.
Thank You
K