Develop Bugs

Cant get into download mode,

Im able to get into twrp recovery, and fastboot mode but not download mode... I wanted to put the phone back into stock and i thought wiping out everything would do so but i guess not.
Whenever i press the download mode command which i did was volume up down and power then plug into the laptop the 3 buttons will flash but my laptop won recognized it. I tried installing the LG Optimus G drivers but still unable to install it. Also TWRP says that the phone isnt rooted anymore and has no OS.

HelloDominick said:
Im able to get into twrp recovery, and fastboot mode but not download mode... I wanted to put the phone back into stock and i thought wiping out everything would do so but i guess not.
Whenever i press the download mode command which i did was volume up down and power then plug into the laptop the 3 buttons will flash but my laptop won recognized it. I tried installing the LG Optimus G drivers but still unable to install it. Also TWRP says that the phone isnt rooted anymore and has no OS.
Click to expand...
Click to collapse
First off it's Vol Up + Vol Down while powered off and then plug into computer. DO NOT press the power button.
Secondly what ver. of windows and did the computer have any issues prior with connecting to the phone?
There is another fix but it's a bit drastic and wouldn't recommend it at this point.

SlimMan said:
First off it's Vol Up + Vol Down while powered off and then plug into computer. DO NOT press the power button.
Secondly what ver. of windows and did the computer have any issues prior with connecting to the phone?
There is another fix but it's a bit drastic and wouldn't recommend it at this point.
Click to expand...
Click to collapse
oh well that might be the reason why. il try it out..im using windows 7 and it was working before i wiped everything.
link me to that fix if anything thanks

On my phone, Download Mode is only accessed when Vol + and - and power from a powered off state, while any USB cord is plugged in, either to a PC, or a wall charger.

After flashing, i noticed that the phone has some issues powering on and off normally i.e. phone completely died, plug the phone into the charger, screen turns on, phone is theoretically charging, but does not show any charging display icon. Which then forces me to unplug the phone, press and hold the power button for 10 seconds, press and hold the power again to turn the phone on, and immediately plug it into the charger in order to get the phone to normally boot up. I flashed CM 10.2 from the original android dev thread. I think that was just a design flaw that LG had originally, but meh, what can i say.

Q&A?
Sent from my Nexus 4 using xda app-developers app

Completely unable to boot to download mode

Hi, as the title says I am completely unable to boot to download mode on my E988. I have literally tried every possible combination of button pressing but nothing works. I have tried rebooting to bootloader from cwm but that doesnt work either, all it does is reboot, show the LG logo, then it reboots normally.. I have tried using terminal emulator to use the command "reboot download" but it doesnt work either, all it does is reboot, show the LG logo, then it reboots normally again. It seems that I am completely unable to access it at all. Any ideas?

Have you try with one end of the usb cord already plug in either your computer or phone, hold down both volume buttons, and plug in the other end. This was the only way down load mode would came on for me until I fixed the phone.

Yup I have. No combination of keys and button pressing seems to work for me it's odd.
Sent from my LG-E988 using XDA Free mobile app

To add on to my previous post, when I do the method whereby I hold vol + and vol - and plugging the usb cord in without my phone's battery, a message shows up when it is detected saying that a "...usb device has malfunctioned...". My phone will then just keep showing the lg logo over and over again causing the message to pop up again and again as the phone is detected and then not detected and the cycle just repeats itself. I have tried to reinstall lg drivers but nothing seems to work...
Edit: It would seem that the phone is indeed trying to boot to download mode whether I use the key combination or command, but it is unsuccessful in doing so and just reboots. Has anyone ever encountered this problem?

i can't access download mode on my lg f240l
guys please help me
i have tried to install a cwm on my lf but when i tried to restart it boots up and stopped on lg logo
i want to use flash tool i have the dll and tot file bot i can't access download mode (does not work vol + and connecting it with usb)
and when you start the power button menu and back keys blinking
Does anyone know what to do?

sllavy said:
i can't access download mode on my lg f240l
guys please help me
i have tried to install a cwm on my lf but when i tried to restart it boots up and stopped on lg logo
i want to use flash tool i have the dll and tot file bot i can't access download mode (does not work vol + and connecting it with usb)
and when you start the power button menu and back keys blinking
Does anyone know what to do?
Click to expand...
Click to collapse
i made it
1 pulled out the battery
2 press volume key up and down(at the same time)
3 plug the usb
and it worked !!!!
happy with download mode and flash tool

sllavy said:
i made it
1 pulled out the battery
2 press volume key up and down(at the same time)
3 plug the usb
and it worked !!!!
happy with download mode and flash tool
Click to expand...
Click to collapse
I have tried that at least a 100 times (I really did) but it doesnt work for me...

Me too, I'm having the same problem, I'm totally unable to get into download mode using standard methods (vol up/down, battery in, battery out etc etc)

dkusnierz said:
Me too, I'm having the same problem, I'm totally unable to get into download mode using standard methods (vol up/down, battery in, battery out etc etc)
Click to expand...
Click to collapse
I have the same problem, and I don´t know what to do. I get lost.....
I can understand why this happend. It should be a simple way to enter in download mode, but nothing results. I´m almost crazy...

Rucosta said:
I have the same problem, and I don´t know what to do. I get lost.....
I can understand why this happend. It should be a simple way to enter in download mode, but nothing results. I´m almost crazy...
Click to expand...
Click to collapse
Please help. I am stuck too... No download mode is insane

Not starting

Hi guys,
I recentely rooted the g3 i have and wanted to unlock the device by flashing it etc. When flashly did the reboot i had an error show in the top right corner. Since then the phone will not boot up. If pluging into my laptop you can hear the windows notification showing a device is connect but i can not see the g3 also adb is not working neither is flash boot. Any ideas ??
thanks

marcus01111 said:
Hi guys,
I recentely rooted the g3 i have and wanted to unlock the device by flashing it etc. When flashly did the reboot i had an error show in the top right corner. Since then the phone will not boot up. If pluging into my laptop you can hear the windows notification showing a device is connect but i can not see the g3 also adb is not working neither is flash boot. Any ideas ??
thanks
Click to expand...
Click to collapse
What did you flash, what error does it display, is it "secure boot error", which version of g3 do you have, can you access recovery, do you have TWRP...?

NatusVincere said:
What did you flash, what error does it display, is it "secure boot error", which version of g3 do you have, can you access recovery, do you have TWRP...?
Click to expand...
Click to collapse
i used ioroot to root the g3 (D855), and i flash with twrp-2.8.0.0_d855-signed.img. Yes i believe it was the secure boot error. After that the notifications lights at the topped flashed blue and red i turn the device ofd to restart and it will not turn on i have tried both to get into the recovery menu (power+vol down) and download menu (power+vol up) neither of which is working.

marcus01111 said:
i used ioroot to root the g3 (D855), and i flash with twrp-2.8.0.0_d855-signed.img. Yes i believe it was the secure boot error. After that the notifications lights at the topped flashed blue and red i turn the device ofd to restart and it will not turn on i have tried both to get into the recovery menu (power+vol down) and download menu (power+vol up) neither of which is working.
Click to expand...
Click to collapse
Ok... Lets start with battery pull in and out.
Even if you do recive secure boot error for booting to the unbumped recovery you should be able to boot to the OS, try with that.
If this fails, do the battery pull again and lets try to get you to the download mode. The way you specified (power+vol down) is incorrect I belive. What you need to do is hold the volume button WITHOUT the power button which will be followed by connecting the device to the PC with installed LG drivers.
If that works you could flash stock files, follow the thread: http://forum.xda-developers.com/showthread.php?t=2785089

Check in device manager how is the phone detected what mode ...

marcus01111 said:
Hi guys,
I recentely rooted the g3 i have and wanted to unlock the device by flashing it etc. When flashly did the reboot i had an error show in the top right corner. Since then the phone will not boot up. If pluging into my laptop you can hear the windows notification showing a device is connect but i can not see the g3 also adb is not working neither is flash boot. Any ideas ??
thanks
Click to expand...
Click to collapse
Does it get into download mode? For this one get the battery out and wait 2 secs. Plug it back in. Be sure to have an USB Cable ready plugged in the back of the PC (NOT IN FRONT HUB and be sure to be the original Cable). Hold Volume UP and Plug the cable. Keep holding Volume UP until you see download. Tell me if you see the Firmware Update screen or it is a security error.

LG G Pro E988 stuck on the Logo screen

I have just flash the custom 5.0.2 ROM using philz touch 6.48.4.
After I flashed the ROM, I reboot to the philz recovery and flashed back to cwm 6.0.4.8.
However, the device stuck on the LG logo screen.
I have try to enter Download mode/Emergence mode/Hard reset mode/Recovery, but all of them I cannot go into.
Please help! Thank you for your helping!!

pchuen said:
I have just flash the custom 5.0.2 ROM using philz touch 6.48.4.
After I flashed the ROM, I reboot to the philz recovery and flashed back to cwm 6.0.4.8.
However, the device stuck on the LG logo screen.
I have try to enter Download mode/Emergence mode/Hard reset mode/Recovery, but all of them I cannot go into.
Please help! Thank you for your helping!!
Click to expand...
Click to collapse
Your boot loader is broken. Gonna have to get to the down load mode and reinstall either the or the stock. You can probably flash the recovery with .IMG file with lg flashing tool. Nerdy blond's twrp is one of those files that you can use. You can even try installing it first with the adb shell command, you can get the instructions at the same place where you download.
http://forum.xda-developers.com/showthread.php?t=3144369

hawkwind212 said:
Your boot loader is broken. Gonna have to get to the down load mode and reinstall either the or the stock. You can probably flash the recovery with .IMG file with lg flashing tool. Nerdy blond's twrp is one of those files that you can use. You can even try installing it first with the adb shell command, you can get the instructions at the same place where you download.
http://forum.xda-developers.com/showthread.php?t=3144369
Click to expand...
Click to collapse
Thank you for replying.
I cannot do anythings since I cannot enter into download mode.
I pressed volume key + and - and insert the usb cable to computer. There is nothing happened, computer dose not show the devices attached and the phone stay in the LG logo screen.
Also, I cannot use adb commands to force the phone enters into download mode as it shows nothings under "List of devices".
Is there any methods I can go into the download mode???
Thank you!

pchuen said:
Thank you for replying.
I cannot do anythings since I cannot enter into download mode.
I pressed volume key + and - and insert the usb cable to computer. There is nothing happened, computer dose not show the devices attached and the phone stay in the LG logo screen.
Also, I cannot use adb commands to force the phone enters into download mode as it shows nothings under "List of devices".
Is there any methods I can go into the download mode???
Thank you!
Click to expand...
Click to collapse
If your phone shows LG start screen, it should go into Download mode. I had similar problem few days ago while I was testing some kernel patches, it just froze on the LG screen. Solution was to unplug it, remove it's battery, SIM & SD (you don't have to remove SIM & SD, I just work that way) , make sure it's off, return battery back, press Vol + & Vol - at the same time and plug-in the USB cable.
Before that, make sure you have installed LG Unified driver (can be obtained via LG's software from support site), because without that Windows won't recognise your device.
After that, once you make your phone usable with Freegee/whatever you use to install initial recovery, flash official TWRP, because others are too old - that Philz CWM is old but still working with Lollipop but not work good and is tends to lock itself into a bootloop if you use hardware keys to enter; that other one, from GPRO_recovery APK is not supported and not working well (for me since day one), so it should be replaced as soon as possible.
Also, I can suggest you to flash your phone from stock 4.1 (not KitKat), root, flash recovery via freegee and after reboot update to latest official TWRP via Flashify.

hawkwind212 said:
Your boot loader is broken. Gonna have to get to the down load mode and reinstall either the or the stock. You can probably flash the recovery with .IMG file with lg flashing tool. Nerdy blond's twrp is one of those files that you can use. You can even try installing it first with the adb shell command, you can get the instructions at the same place where you download.
http://forum.xda-developers.com/showthread.php?t=3144369
Click to expand...
Click to collapse
ShadySquirrel said:
If your phone shows LG start screen, it should go into Download mode. I had similar problem few days ago while I was testing some kernel patches, it just froze on the LG screen. Solution was to unplug it, remove it's battery, SIM & SD (you don't have to remove SIM & SD, I just work that way) , make sure it's off, return battery back, press Vol + & Vol - at the same time and plug-in the USB cable.
Before that, make sure you have installed LG Unified driver (can be obtained via LG's software from support site), because without that Windows won't recognise your device.
After that, once you make your phone usable with Freegee/whatever you use to install initial recovery, flash official TWRP, because others are too old - that Philz CWM is old but still working with Lollipop but not work good and is tends to lock itself into a bootloop if you use hardware keys to enter; that other one, from GPRO_recovery APK is not supported and not working well (for me since day one), so it should be replaced as soon as possible.
Also, I can suggest you to flash your phone from stock 4.1 (not KitKat), root, flash recovery via freegee and after reboot update to latest official TWRP via Flashify.
Click to expand...
Click to collapse
Thank you for your detail reply.
I have tried to reinstall the LG driver and try to enter download mode again.
The screen is still stuck on LG logo and I cannot find the device in hardware manager (cannot recognize it).
I cannot do anythings until it can recognize it.
(Is it the bootloader is broken? and can I fix it?)
Thank you very much and waiting for your reply soon.:good:

pchuen said:
Thank you for your detail reply.
I have tried to reinstall the LG driver and try to enter download mode again.
The screen is still stuck on LG logo and I cannot find the device in hardware manager (cannot recognize it).
I cannot do anythings until it can recognize it.
(Is it the bootloader is broken? and can I fix it?)
Thank you very much and waiting for your reply soon.:good:
Click to expand...
Click to collapse
Which version of Windows are you using? It should be displayed under Serial ports in Device manager (named something like LGE Serial device) and LGFlashTool should recognise it immediately. I can't make you a screenshot/check for real name because I'm running Linux right now and can't reboot.
Also, try with another cable/port, remove all other android drivers you may have (Samsung's, Google's...) and disable antivirus.

ShadySquirrel said:
Which version of Windows are you using? It should be displayed under Serial ports in Device manager (named something like LGE Serial device) and LGFlashTool should recognise it immediately. I can't make you a screenshot/check for real name because I'm running Linux right now and can't reboot.
Also, try with another cable/port, remove all other android drivers you may have (Samsung's, Google's...) and disable antivirus.
Click to expand...
Click to collapse
It does not work on Windows 7 and XP.
I did not find any LGE XXX under Serial ports part.
Thank you!

pchuen said:
It does not work on Windows 7 and XP.
I did not find any LGE XXX under Serial ports part.
Thank you!
Click to expand...
Click to collapse
Hm.... Phone shows that it have entered download mode? Black screen, centered gray message and "DOWNLOAD MODE" red text?

ShadySquirrel said:
Hm.... Phone shows that it have entered download mode? Black screen, centered gray message and "DOWNLOAD MODE" red text?
Click to expand...
Click to collapse
No... nothing happens, just showing LG logo...

pchuen said:
No... nothing happens, just showing LG logo...
Click to expand...
Click to collapse
OK, it doesn't enter download mode. So, step by step:
- remove battery and leave it for 15-30 seconds, return battery
- press Vol+ and Vol- at the same time and keep them pressed,
- plug USB cable in while keys are pressed
It should immediately put you into download mode, with no LG screen, just black screen with gray box and red text I've described to you.

ShadySquirrel said:
OK, it doesn't enter download mode. So, step by step:
- remove battery and leave it for 15-30 seconds,
- press Vol+ and Vol- at the same time and keep them pressed,
- plug USB cable in while keys are pressed
It should immediately put you into download mode, with no LG screen, just black screen with gray box and red text I've described to you.
Click to expand...
Click to collapse
I understand what download mode screen is.
I followed your methods, bur I still cannot enter it and the computer cannot recognize that.
Sorry for disturbing :crying:

pchuen said:
I understand what download mode screen is.
I followed your methods, bur I still cannot enter it and the computer cannot recognize that.
Sorry for disturbing :crying:
Click to expand...
Click to collapse
So, whatever you try to do, phone just shows LG logo, not even a message in an upper left corner?
I'm running out of ideas. I have exact same variant (E988) but only time it didn't want to enter download mode this way was when cable I was using was broken...

ShadySquirrel said:
So, whatever you try to do, phone just shows LG logo, not even a message in an upper left corner?
I'm running out of ideas. I have exact same variant (E988) but only time it didn't want to enter download mode this way was when cable I was using was broken...
Click to expand...
Click to collapse
I have changed the cable, but it is the same.

LG G8 STUCK IN Qualcomm HS-USM QDLoader 9008

Today I Bricked My LG820Qm
I was updating my Lg g8 using LG UP, When the Process on 64% my PC power off
After that my phone stuck in Qualcomm HS-USM QDLoader 9008
Any solution to come out from this mode to Downloaded Mode so that i can update using LG up.
I was updating G820QM10i_00_NAO_US_OP_0401 to G820QM20b_00_NAO_US_OP_1224
My LG up LGUP_Lab_Frame_Ver_1_16_0_3

Can you try to switch to download mode by press&hold VOL+ while inserting the USB cable (connected to PC). Phone needs to be off while doing so.

tron1 said:
Can you try to switch to download mode by press&hold VOL+ while inserting the USB cable (connected to PC). Phone needs to be off while doing so.
Click to expand...
Click to collapse
I tried not working
If i press&hold VOL+ while inserting the USB cable still my phone come with Qualcomm HS-USB Mode
thanks for your reply

What happens if you press&hold VOL- (furing the whole procedure) push the power button until the phone vibrates, release the button und press&hold the power button?

tron1 said:
What happens if you press&hold VOL- (furing the whole procedure) push the power button until the phone vibrates, release the button und press&hold the power button?
Click to expand...
Click to collapse
Which ever combination, Vol- + power phone power of
with in sec it boot to Qualcomm mode

I don't know where to ask so I'm gonna try here. My G820N is stuck on Android 10 beta. Whenever I flash an official kdz, it only allows for emergency calls. Can't do anything. Any help would be appreciated

Following, in right here with ya.

atsuisofu said:
Following, in right here with ya.
Click to expand...
Click to collapse
Try entering download mode with phone disconnected from USB cable.
Also try to see if it gets recognized by LG-UP or by LG Bridge. These 2 softwares don't need download mode to be able to flash, just the phone to be recognized on some PORT.
Try also factory reset hard menu. Also try switching between Slot A and Slot B. There is also this backup method. Phone is not dead on one of those slots.
If nothing works (but slot a slot b should 100% work) , wait for the firehose, it's just around the corner. That will restore the phone back 100%.
For more info search v50thinq on telegram app. :good:

I can t get to download as it freezes and without the USB cable it doesn't even try and enter. I appreciate the recommendations. I was thinking of the a/b seit hbut without the use of fastboot I am at a loss of how to switch between the two as I thought the system chose and the switch happened upon rebooting once a system had been selected ie as in turning the unit off after loading the os set a flag to go to the opposite system upon completing the inftframs and boot sequence.

vikramanananda said:
Which ever combination, Vol- + power phone power of
with in sec it boot to Qualcomm mode
Click to expand...
Click to collapse
Hi, i'm facing the same problem today, my QM will not go into any mode other than the Qualcomm mode. Were you able to recover your phone finally ?

vikramanananda said:
Which ever combination, Vol- + power phone power of
with in sec it boot to Qualcomm mode
Click to expand...
Click to collapse
did you ever get it fixed. im having the same problem.

johnnycm77 said:
did you ever get it fixed. im having the same problem.
Click to expand...
Click to collapse
me too, do you fix it?

vikramanananda said:
Today I Bricked My LG820Qm
I was updating my Lg g8 using LG UP, When the Process on 64% my PC power off
After that my phone stuck in Qualcomm HS-USM QDLoader 9008
Any solution to come out from this mode to Downloaded Mode so that i can update using LG up.
I was updating G820QM10i_00_NAO_US_OP_0401 to G820QM20b_00_NAO_US_OP_1224
My LG up LGUP_Lab_Frame_Ver_1_16_0_3
Click to expand...
Click to collapse
So, if the device, as you say, lost power during an update like that, then almost assuredly you have at least one, if not numerous corrupted partitions.
And, it's specific partitions on the device that allow it to enter download mode. One of these most know about or have heard of is the laf partition. But other have to be there also for it to work, I don't remember exactly what the others off the top of my head, but that info is easily found.
The key thing you need (or any others commenting same prob), is to be able to enter EDL mode and have qfil installed and recognizing the device. If you can get that far, it would be easy to find the correct partitions you could flash with qfil and then immediately go from qfil to download mode.
Many many people have done this. Just get qfil set up (see guides section) and get the device recognized. that takes some effort but it's def doable.