lg g4 wont go into download mode - G4 Q&A, Help & Troubleshooting

got an lg g4 that works fine however it refuses to go into download mode. volume up and power button does nothing.

And What is With Fastboot?
Where do you got the LG from`?
maybe a Frankenstein.

dethrat said:
got an lg g4 that works fine however it refuses to go into download mode. volume up and power button does nothing.
Click to expand...
Click to collapse
Take out the battery and put it back on the phone.
Connect the phone to the computer while pressing volume up. Keep volume up pressed until you see "download mode" screen.

Related

[Q] HELP! Lost download mode! LG E970

Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Dreadingdawn said:
Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Click to expand...
Click to collapse
Use the KDZ Updater with the latest firmware version of your phone...
First, download and install the latest lg driver. (your phone must be unplugged when installing)
Second, download the LG E970 kdz.
Third, "google" and install the kdz updater.
Fourth, put your phone in "Download mode" by pressing both volume keys and plug into usb port (wait 2-3 seconds, your computer will load the driver)
Fifth, open the kdz updater and select "3GQCT" in type...and "CS_Emergency" in phone mode. Then browse & select the kdz you've just downloaded...and press the Launch button. It should take about 8-10 minutes to complete...your phone will reboot around param.94 then you can unplugged it and let it boot normally.
Finally, make a "factory reset" to erase all previous data and plug your phone to wall charger to gave him some fresh blood.
Give us some feedback & good luck :good:
Sent from my AOSP on geeb_att_us using xda premium
Dreadingdawn said:
Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Click to expand...
Click to collapse
Try to get in donwload mode pushing together volume+ and volume- and then plug in the usb cable (to your pc) do not release the buttons until you see the download mode logo on the screen. The phone has to be off before doing the procedure if it wont turn off , push the power button for something like 15 sec, should go off that way
Good luck and in the event that you can't go in download mode anymore , take it to assistance. It's the only way.
JasonBourne.Qc said:
Use the KDZ Updater with the latest firmware version of your phone...
First, download and install the latest lg driver. (your phone must be unplugged when installing)
Second, download the LG E970 kdz.
Third, "google" and install the kdz updater.
Fourth, put your phone in "Download mode" by pressing both volume keys and plug into usb port (wait 2-3 seconds, your computer will load the driver)
Fifth, open the kdz updater and select "3GQCT" in type...and "CS_Emergency" in phone mode. Then browse & select the kdz you've just downloaded...and press the Launch button. It should take about 8-10 minutes to complete...your phone will reboot around param.94 then you can unplugged it and let it boot normally.
Finally, make a "factory reset" to erase all previous data and plug your phone to wall charger to gave him some fresh blood.
Give us some feedback & good luck :good:
Sent from my AOSP on geeb_att_us using xda premium
Click to expand...
Click to collapse
Rockguy40 said:
Try to get in donwload mode pushing together volume+ and volume- and then plug in the usb cable (to your pc) do not release the buttons until you see the download mode logo on the screen. The phone has to be off before doing the procedure if it wont turn off , push the power button for something like 15 sec, should go off that way
Good luck and in the event that you can't go in download mode anymore , take it to assistance. It's the only way.
Click to expand...
Click to collapse
Hey thanks for the help guys :good: but it's not even charging anymore and has died lol so i'm gonna let the nice folks over at mobiletechvideos.com JTAG it. Again thanks!! :fingers-crossed:

Stock, can't get into recovery/download modes

Hi guys. Im pretty experienced with android but this one has me stumped. My buddies brother has a stock/non-rooted optimus g e971 on Rogers. He changed his screen lock password and forgot what it is. Of course he never register a Gmail account so I can't recover that way. I figure no problem. Shut down, pwr+vol down to factory reset. Well nope doesn't work. It flashes the lg logo twice then boots like normal.
Ok so I figure I'll just put it in download mode/fast boot to do the factory reset. Tried pwr+vol up. Nope. Vol up+vol down+pwr. Nope. Vol up+vol down and plug usb+pwr. Nope. It just flashed the lg logo twice then boots like normal. I've tried multiple variations of each holding the pwr for different lengths of time, always with the same result.
Anyone have any suggestions? It's not bricked, and the vol keys are working, it just won't go into any modes.
also I dont know if he has hardware encryption enabled (of if thats even an option on this device) but would that even prevent me from getting into factory reset / download mode?
Also I check that the vol rocker is working. when it is on but screen is off, if i click the vol rocker either way it wakes the screen.
I have a similar problem.Here's a thread I made about it http://forum.xda-developers.com/optimus-g-intl/help/enter-download-mode-t2883542.A couple of guys had some ideas.None worked in my phone but maybe you're luckier.
If you haven't done that already you should try going into download mode by pressing power up+down and plug the cable, don't press the pwr button.
If you find a solution pls let me know .
Yup, you shouldn't need to press the power button for download mode.
First, make sure you have the LG United Mobile drivers installed on the PC you're using. Then plug your USB cable into the PC (not the phone yet). Simultaneously press and hold the Vol +/- buttons, and hold for 10 seconds. Then while still holding the vol buttons, connect the micro usb to the phone.
Drivers:
http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425
sir Impecable said:
I have a similar problem.Here's a thread I made about it http://forum.xda-developers.com/optimus-g-intl/help/enter-download-mode-t2883542.A couple of guys had some ideas.None worked in my phone but maybe you're luckier.
If you haven't done that already you should try going into download mode by pressing power up+down and plug the cable, don't press the pwr button.
If you find a solution pls let me know .
Click to expand...
Click to collapse
I can't get into download mode using that method. It just boots like normal.
ff_29 said:
Yup, you shouldn't need to press the power button for download mode.
First, make sure you have the LG United Mobile drivers installed on the PC you're using. Then plug your USB cable into the PC (not the phone yet). Simultaneously press and hold the Vol +/- buttons, and hold for 10 seconds. Then while still holding the vol buttons, connect the micro usb to the phone.
Drivers:
http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425
Click to expand...
Click to collapse
Doesn't work either. If I hold +/- for 10 sec then plug in the usb it flashes the lg logo twice, then goes to the battery charging screen. If I hold +/- for 20 sec then plug in the usb it flashes the lg logo twice then boots like normal.
after reading this post i went and tried if i also cant get into the recovery and the same happened to me, the LG logo just flashes and nothing happens. mine is stock E975 (4.4.2).
worked for me.
burnski said:
Hi guys. Im pretty experienced with android but this one has me stumped. My buddies brother has a stock/non-rooted optimus g e971 on Rogers. He changed his screen lock password and forgot what it is. Of course he never register a Gmail account so I can't recover that way. I figure no problem. Shut down, pwr+vol down to factory reset. Well nope doesn't work. It flashes the lg logo twice then boots like normal.
Ok so I figure I'll just put it in download mode/fast boot to do the factory reset. Tried pwr+vol up. Nope. Vol up+vol down+pwr. Nope. Vol up+vol down and plug usb+pwr. Nope. It just flashed the lg logo twice then boots like normal. I've tried multiple variations of each holding the pwr for different lengths of time, always with the same result.
Anyone have any suggestions? It's not bricked, and the vol keys are working, it just won't go into any modes.
Click to expand...
Click to collapse
i also have a stock 4.4.2 E975 and i also cant go to the recovery, but i happened to have found this video on youtube, it worked for me :victory:
he pressed again the power and volume down button simultaneously after the LG logo appeared.
https://www.youtube.com/watch?v=24Zq047J60c
ff_29 said:
Yup, you shouldn't need to press the power button for download mode.
First, make sure you have the LG United Mobile drivers installed on the PC you're using. Then plug your USB cable into the PC (not the phone yet). Simultaneously press and hold the Vol +/- buttons, and hold for 10 seconds. Then while still holding the vol buttons, connect the micro usb to the phone.
Drivers:
http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=UW00120120425
Click to expand...
Click to collapse
j4yd3n said:
i also have a stock 4.4.2 E975 and i also cant go to the recovery, but i happened to have found this video on youtube, it worked for me :victory:
he pressed again the power and volume down button simultaneously after the LG logo appeared.
https://www.youtube.com/watch?v=24Zq047J60c
Click to expand...
Click to collapse
Still nothing. Did exactly the same thing, tried a dozen times, just boots like normal.
burnski said:
also I dont know if he has hardware encryption enabled (of if thats even an option on this device) but would that even prevent me from getting into factory reset / download mode?
Also I check that the vol rocker is working. when it is on but screen is off, if i click the vol rocker either way it wakes the screen.
Click to expand...
Click to collapse
971 hardware encryption it? Are you sure there is no equipment to unlock BL
Solitarily said:
971 hardware encryption it? Are you sure there is no equipment to unlock BL
Click to expand...
Click to collapse
Android has SD card encryption disabled by default - but if it was enabled it shouldnt disable recovery/fastboot - right?
Even if the bootloader is locked, i should still be able to get into fastboot/download mode, and/or recovery, right?
burnski said:
Android has SD card encryption disabled by default - but if it was enabled it shouldnt disable recovery/fastboot - right?
Even if the bootloader is locked, i should still be able to get into fastboot/download mode, and/or recovery, right?
Click to expand...
Click to collapse
Even SD encryption is enabled, it will not affect enter fastboot mode / download mode
Solitarily said:
Even SD encryption is enabled, it will not affect enter fastboot mode / download mode
Click to expand...
Click to collapse
That's what i figured, but i didn't know if there is some quirk with this device i wasn't aware of.
Is it possible i have a corrupt boot loader? Again this device I'd completely stock.
anyone?

LG G4 bootloop. Can't go into recovery/safe mode and pc isn't recognising phone usb

My LG G4 goes to the 'LG Life's Good" loading screen and just stays there. The light swirls around the LG logo repeatedly and the devices sometimes vibrates once or twice when I press the back buttons a lot.
I have tried going into recovery mode and safe mode and they don't work. Also, my PC doesn't connect via USB to the phone while it is in this state.
Any ideas?
so how did this happen? did you try to root, flash anything? Is the phone on stock firmware? lp, or mm? give us something more
How did you try to enter recovery? Try to hold power+volume down, when lg logo appears release power but NOT volume down. Wait 1 sec then press power again (while still holding volume down) this is the correct way to enter the recovery
It may be related to ILAPO issue:
http://forum.xda-developers.com/g4/help/lg-g4-stuck-bootloop-t3268734
it got the bootloop need to be sent for repair. it must have warranty... please provide your sirst 3 digits of srial numbe on back of phne.

v500 Stuck Bootlooping - Cant Access TWRP

Hi all,
Have a brand new (to me) v500 that i bought and was able to root, flash twrp, and flash crdroid on yesterday. Today i flashed standard AOSP but now i'm stuck in a bootloop and cant figure out how to access twrp any more. Previously with crdroid on it i was accessing the bootloader/twrp via an app. So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.
Bump - $10 USD to whoever can help me solve this first
To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Sent from my Pixel 3a using Tapatalk
---------- Post added at 12:58 PM ---------- Previous post was at 12:55 PM ----------
RUGGNATION said:
Hi all,
Have a brand new (to me) v500 that i bought and was able to root, flash twrp, and flash crdroid on yesterday. Today i flashed standard AOSP but now i'm stuck in a bootloop and cant figure out how to access twrp any more. Previously with crdroid on it i was accessing the bootloader/twrp via an app. So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.
Click to expand...
Click to collapse
To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Sent from my Pixel 3a using Tapatalk
RUGGNATION said:
Hi all,
(---cut---) So far all i can get to come up using hardware buttons is the download mode, and ADB isn't recognizing the device.
Any advice? I tried following a guide to revert to stock using the LG Support Tool but cant find the R&D tools to complete the tutorial.
Any help is appreciated.
Click to expand...
Click to collapse
Have you tried LG Flash Tool 2014?
b0li said:
To enter twrp via buttons on v500:
Press and hold Power Button + Volume Down
When the LG logo shows up, release the power button only
Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
When the factory reset screen appears, release your hold on all buttons
Follow On Screen Indications to make factory reset, but instead you enter twrp
Click to expand...
Click to collapse
Using that combination of buttons doesnt bring up any menus, i see the LG logo and then either holding the power button shuts down the tablet or it tries booting into Android, which then loops.
ze7zez said:
Have you tried LG Flash Tool 2014?
Click to expand...
Click to collapse
I did but ive been unable to get it to work and/or find the right file to load into it.
RUGGNATION said:
I did but ive been unable to get it to work and/or find the right file to load into it.
Click to expand...
Click to collapse
V50020f_00.kdz
Download LG Official Stock ROM / Firmware [U.S.]
or
Enter the serial number XXXXXXXXXXXXX into the link
http://csmg.lgmobile.com:9002/csmg/b2c/client/auth_model_check2.jsp?esn=LGXXXXXXXXXXXXX
and you will receive a link to the ROM.
ze7zez said:
V50020f_00.kdz
Download LG Official Stock ROM / Firmware [U.S.]
Click to expand...
Click to collapse
Thanks for the link, so far i havent been able to get my computer to recognize the usb connection when in download mode. I'm using the OEM cable and downloaded the drivers in the LG Flash Tool thread, but no luck.
RUGGNATION said:
Using that combination of buttons doesnt bring up any menus, i see the LG logo and then either holding the power button shuts down the tablet or it tries booting into Android, which then loops.
Click to expand...
Click to collapse
b0li gave an invalid TWRP entry instruction.
Read How to enter recovery mode using key combination post #2.
In TWRP, do advanced wipe without internal storage.
Before you flash the ROM, check its checksum carefully to see if it is identical to the one on the server.
ze7zez said:
b0li gave an invalid TWRP entry instruction.
Read How to enter recovery mode using key combination post #2.
Click to expand...
Click to collapse
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.
RUGGNATION said:
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.
Click to expand...
Click to collapse
It turns off because you hold 3 keys and don't release them.
You must press them simultaneously and then release them immediately.
ze7zez said:
It turns off because you hold 3 keys and don't release them.
You must press them simultaneously and then release them immediately.
Click to expand...
Click to collapse
That did the trick, can't believe it was just because i wasn't pressing the keys exactly right. I was able to get back into TWRP and reflash the ROM so now everything is working. Still having trouble getting usb to recognize the device, so i can't flash anything else on there at the moment.
PM me your paypal or venmo
RUGGNATION said:
Still having trouble getting usb to recognize the device, so i can't flash anything else on there at the moment.
Click to expand...
Click to collapse
Perhaps the problem is not the usb socket or cable.
Blow out the socket with compressed air and try again.
If that doesn't work, then your OS may be a problem.
In this case, try [LIVE-ISO][FWUL]adb/fastboot without any installation and driver issues.
I tried another computer too, same result - the tablet recognizes the connection so it starts charging, and despite the USB settings in dev options being set for MTP, it doesn't connect.
I'll try your link later, but it seems like its a problem with the tablet compared to computer.
RUGGNATION said:
I tried the corrected key combination, but no menus pop up, I either hold the power and vol up/down buttons until the device turns itself off, or it boots to the Android logo and then loops.
Click to expand...
Click to collapse
You can always transfer data using microSD or via WiFi tethering.
If via WiFi, I recommend the SwiFTP server - simple and reliable.
I tried to update Lineage and am running into an issue now where as soon as the LG logo pops up, a message that says "Secure booting error! Cause: boot certification verify" pops up almost immediately so I can't use the hardware buttons to get into TWRP. Any ideas around this one? Thanks again all!

Samsung Galaxy A50 Issue after Update

Hey People,
maybe someone of you can help me.
I made a normal Update of my Phone 5 days ago after the Update my Phone went off and now it shows a Blue Screen with the Information that something went wrong while the Update.
I tried to repair it with the Smart Switch Pc Software but it don't worked.
I gave it to the store where i bought it but they want that i pay for the fix. Honestly i didn't tried to root it because i needed it for work.
Had someone that issue and can help me how i can fix that by myself?
Kind Regards
Saint
yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone
download mode
yamen_tn said:
yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone
Click to expand...
Click to collapse
I am trying that on my A505UI and it only puts me in SAFE MODE.
fototakerWNY said:
I am trying that on my A505UI and it only puts me in SAFE MODE.
Click to expand...
Click to collapse
That's because only the first part is needed. Just turn off your phone normally and then turn it on simultaneously pressing Volume Down and Power.
It finally worked after....
pripyaat said:
That's because only the first part is needed. Just turn off your phone normally and then turn it on simultaneously pressing Volume Down and Power.
Click to expand...
Click to collapse
Thanks for your reply. I did as you suggested but that gave me a normal boot. I tried as someone else suggested, pressing power+UP volume and that did finally get me to recovery mode! Played around with that for half hour
Thanks again! Now if only can get the transfer working in OTG!!!
yamen_tn said:
yes you probably can fix it easy
connect your phone to a pc with the usb cable
hold vol- and power to force the phone to reboot.
when the phone shut down, rapidly hold vol+ and vol- .the phone should enter download mode
use odin software to upload the latest firmware of your phone
Click to expand...
Click to collapse
Hey that worked for me Thank you

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