LG G4 can't fastboot/reboot bootloader - G4 Q&A, Help & Troubleshooting

Ola!
I'm playing with a LG G4-H815.
When using `adb reboot bootloader`, the phone just boot on normal mode.
When doing the Volume Up + Power button thing, I manage to land on Download Mode but nothing happens, `fastboot` does not detect the phone. And I get this popup:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Reset Factory doesn't work either. Does nothing but reboot the phone as if nothing happened.

_who said:
Ola!
I'm playing with a LG G4-H815.
When using `adb reboot bootloader`, the phone just boot on normal mode.
When doing the Volume Up + Power button thing, I manage to land on Download Mode but nothing happens, `fastboot` does not detect the phone. And I get this popup:
Reset Factory doesn't work either. Does nothing but reboot the phone as if nothing happened.
Click to expand...
Click to collapse
Did you tried https://forum.xda-developers.com/g4/help/boot-bootloader-fastboot-t3738850 ?

lucki1000 said:
Did you tried https://forum.xda-developers.com/g4/help/boot-bootloader-fastboot-t3738850 ?
Click to expand...
Click to collapse
Yes, that's the Volume Up + Power buttons thing. I manage to land on this mode as described in the OP.

_who said:
Ola!
I'm playing with a LG G4-H815.
When using `adb reboot bootloader`, the phone just boot on normal mode.
When doing the Volume Up + Power button thing, I manage to land on Download Mode but nothing happens, `fastboot` does not detect the phone. And I get this popup:
Reset Factory doesn't work either. Does nothing but reboot the phone as if nothing happened.
Click to expand...
Click to collapse
And which os did you use?

Related

Uh-oh...

So my rooted phone has been vibrating recently for no reason. I googled it and came up with "power down, reboot to recovery, navigate with the buttons to wipe cache, then reboot".
I did that, selected yes to continue, and it's been doing this for a while. I'm ticked because I usually research everything pretty heavily and did not this time. What should I do now? How long might I expect this to take?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
bob60626 said:
So my rooted phone has been vibrating recently for no reason. I googled it and came up with "power down, reboot to recovery, navigate with the buttons to wipe cache, then reboot".
I did that, selected yes to continue, and it's been doing this for a while. I'm ticked because I usually research everything pretty heavily and did not this time. What should I do now? How long might I expect this to take?
Click to expand...
Click to collapse
you are in Download mode not recovery mode
to enter recovery press vol+ + home + power at the same time, when u see Samsung logo remove ur finger from power only and wait till recovery starts
Thank you! Can I do that here or do I need to get out of download first?
Heck, how do I just get back to regular operation? I need to research a lot more on this...
Fixed! I took off my case this time; I think my Defender was screwing up the volume button pushing.
bob60626 said:
Thank you! Can I do that here or do I need to get out of download first?
Heck, how do I just get back to regular operation? I need to research a lot more on this...
Click to expand...
Click to collapse
Firstly - I am glad you solved your problem.
Now - If you ever need to get out of Download mode then just pull the battery.

I need help!

Hello I have got a problem
I have tried to update the software on my device through lg pc suite and now its stuck on this:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I tried to pull the battery but it still turns on to this..
what to do? :crying:
Gabbyh28 said:
Hello I have got a problem
I have tried to update the software on my device through lg pc suite and now its stuck on this:
I tried to pull the battery but it still turns on to this..
what to do? :crying:
Click to expand...
Click to collapse
Need more info. What device do you have? Are you rooted, using a custom recovery?
Jank4AU said:
Need more info. What device do you have? Are you rooted, using a custom recovery?
Click to expand...
Click to collapse
I got D855 not rooted
whts custom recovery?
Gabbyh28 said:
Hello I have got a problem
I have tried to update the software on my device through lg pc suite and now its stuck on this:
I tried to pull the battery but it still turns on to this..
what to do? :crying:
Click to expand...
Click to collapse
try going with the button combination into recovery and doing a hard reset, if that doesn't work flash the appropriate kdz file
how to enter recovery via buttons
Now, press and hold Power and Volume down buttons at the same time.
When the LG logo appears, release the keys.
Immediately press Power and Volume Down buttons again until the Hard Reset menu will be displayed.
Press Power button once and confirm the hard reset operation (this will not be necessarily if your LG G3 is running on a custom recovery image).
That’s it; now your LG G3 will boot into recovery mode.

H818P Unable to enter Download mode, fastboot works fine

When i press Vol Up and plug in USB cable to computer, the phone starts with "Download mode" text and blue dots below it. But it doesn't proceed further from there.
Fastboot mode works fine though. I started having sudden bootloop, So i decided to reflash the KDZ using LGUp tool via download mode but to my surprise I can't get into Download mode beyond "Download mode" text screen.
Any help ?
same u what must do?
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
anyone can suggest what must do?dont go firmware update
15min in fregetor its ok
i had it befor i changed usb cable ..
the old one was work fine with data but not work with update .
so i changed to small long (15 cm ) usb cable and it work great.
salimbaba said:
When i press Vol Up and plug in USB cable to computer, the phone starts with "Download mode" text and blue dots below it. But it doesn't proceed further from there.
Fastboot mode works fine though. I started having sudden bootloop, So i decided to reflash the KDZ using LGUp tool via download mode but to my surprise I can't get into Download mode beyond "Download mode" text screen.
Any help ?
Click to expand...
Click to collapse
Could you solve the problem? mine does not come out of fastboot mode. Thank you
fmmarotte said:
Could you solve the problem? mine does not come out of fastboot mode. Thank you
Click to expand...
Click to collapse
I gave up on it, and left it over night. It booted into download mode next morning. So maybe just let it cool a bit. a couple of hours should do.

Samsung SM-975F remained on this screen, it does not open

My phone is stuck on this screen and it won't turn on. It doesn't go into download mode either, how can I turn it on.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Press and hold volume up + volume down + power button all at the same time until the phone turns off and powers back on. Once the phone starts to reboot, let all 3 buttons go at the same time. That should do it.
Thank you, I tried this but didn't get any results.
buqqi said:
My phone is stuck on this screen and it won't turn on. It doesn't go into download mode either, how can I turn it on.
View attachment 5277275​
Click to expand...
Click to collapse
Samsung note 10+ 5g not booting after firmware update
Hi, I have applied firware update for years without problems but today I am stumped. I tried to update todate from 6ETLL firmware to the newer 6FUBD both Android 11. Set up Odin using 3.14.4 and started ok. Then I had the install stopping and...
forum.xda-developers.com
Reboot Phone in Download Mode:
- 1st plug-in USB-cable to your Note10+!!!,
- push Volume Up + Volume Down buttons, while pushing them plug-in USB-cable into PC
I will try and give information, I hope you will
I've tried all the posts but when I say start in odin, the phone restarts and gives an error
buqqi said:
My phone is stuck on this screen and it won't turn on. It doesn't go into download mode either, how can I turn it on.
View attachment 5277275​
Click to expand...
Click to collapse
After all these devices that Ive owned, the very same thing occurred when I was updating the S22U firmware using official SmartSwitch software from same PC for many years.

Question Fold3 Keeps rebooting again and again

So my phone keeps restarting and it actually opens up and nothing happens until I unlock the phone. Once I do unlock it, everything freezes and it reboots.
Any solutions guys?
A recording of what happens
have you tried to wipe the Cache from in recovery?
The phone is not loading the recovery as well. Not sure if I'm doing it right but I keep holding power and volume up when it is off, but it just boots normally.
Getting a message "PDP ... Backup Fail"
Update: I could enter the recovery by connecting the phone to the PC and wiped the cache.
Yet, the issue still there.
Maybe time to do a factory reset ?
OP, have you modified the system at all? Unlocked bootloader, rooted, and/or installed a custom recovery or OS?
Also have you added any new apps ? Maybe you added something that isn't playing nice.
You could try to boot to safe mode:
Simultaneously press and hold the
Side button
and
Volume down button
(right edge) until the 'Power off' prompt appears on the screen then release.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Touch and hold
Power off
until the 'Safe mode' prompt appears then release.
To confirm, tap
Safe mode
.
This process may take up to 30 seconds to complete.
Upon reboot, 'Safe mode' appears in the lower-left of the unlock / Home screen.
With Safe Mode enabled, ensure Airplane Mode is turned off then test device and app functionality.

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