Develop Bugs

[Q] How to enter recovery mode using key combination?

I can use "adb reboot recovery" to enter TWRP 2.7 recovery mode, but I want to use key combination, please tell me how to that.

Hold Power + Vol Down > Wait until LG Logo pops up and release from both buttons > quickly hold Power + Vol Up + Vol Down again
It will pop up with some message about reset to factory settings, but it's all a bluff.
Hit Power x3 times to confirm and you'll get to TWRP recovery

Thanks, it works.
actually I enter this factory reset mode before, but i just don't know it a "fake".

so will this erase all data or not?

Jasiekor said:
so will this erase all data or not?
Click to expand...
Click to collapse
That will depend on whether you've installed TWRP or not.
If you've still got the original recovery it will wipe it like it says it will, if you've got a custom recovery it will take you to it.
The standard recovery isn't a recovery like you're expecting it to be, if just has a way of resetting things to default without allowing you to do anything extra. OEM don't like giving people options but want a way to reset to defaults that the customer can use before needing to return a faulty unit which might not be faulty. If that makes sense.

Pman said:
Hold Power + Vol Down > Wait until LG Logo pops up and release from both buttons > quickly hold Power + Vol Up + Vol Down again
It will pop up with some message about reset to factory settings, but it's all a bluff.
Hit Power x3 times to confirm and you'll get to TWRP recovery
Click to expand...
Click to collapse
Thought I'd lost recovery after flashing the lp rom. Sorry for the bump! Many thanks and lol at the 'bluff' factory reset!

Fullmetal Jun said:
Thought I'd lost recovery after flashing the lp rom. Sorry for the bump! Many thanks and lol at the 'bluff' factory reset!
Click to expand...
Click to collapse
No problems, happy to help

Fullmetal Jun said:
Thought I'd lost recovery after flashing the lp rom. Sorry for the bump! Many thanks and lol at the 'bluff' factory reset!
Click to expand...
Click to collapse
From what I can tell, it's not a "bluff". It seems that the stock recovery partition would just automatically do a factory reset, so it warns you before booting the recovery partition. Seeing as you're non-stock, it just boots into TWRP/CWM. It's a valid warning that's simply set up in a weird way.

i hard rest my lg stylo but when i did it erased all my key comob how did i get them back

crystalgirl20977 said:
i hard rest my lg stylo but when i did it erased all my key comob how did i get them back
Click to expand...
Click to collapse
You don't.
We'll you might be able to but you're going about it the wrong way.
First you need to find the right forum for your device, then you read, followed by more reading.
At some point you've hopefully discovered that you should have done all this reading before you reset your device.
Also before pressing the post button on your next post, read it first to make sure it makes sense.

Thank you very much, I tried other combinations found on some web pages that failed. This one worked!

Issue remains.
Pman said:
Hold Power + Vol Down > Wait until LG Logo pops up and release from both buttons > quickly hold Power + Vol Up + Vol Down again
It will pop up with some message about reset to factory settings, but it's all a bluff.
Hit Power x3 times to confirm and you'll get to TWRP recovery
Click to expand...
Click to collapse
I got myself in a pretty bad situation. I have the stock rom. I am trying to get that back using recovery but it's not working. Only factory reset screen. This tablet stopped working in 2015. It cannot write ANY data ANYWHERE. Can't take pics, Can't take screenshots, Can't download apps. Nothing. I really want my tablet back... :/

CharaGloom said:
I got myself in a pretty bad situation. I have the stock rom. I am trying to get that back using recovery but it's not working. Only factory reset screen. This tablet stopped working in 2015. It cannot write ANY data ANYWHERE. Can't take pics, Can't take screenshots, Can't download apps. Nothing. I really want my tablet back... :/
Click to expand...
Click to collapse
I'm probably not the best person to help, however if you put a new post up with more details on what you have access too, the community will be able to help out.

CharaGloom said:
I got myself in a pretty bad situation. I have the stock rom. I am trying to get that back using recovery but it's not working. Only factory reset screen. This tablet stopped working in 2015. It cannot write ANY data ANYWHERE. Can't take pics, Can't take screenshots, Can't download apps. Nothing. I really want my tablet back... :/
Click to expand...
Click to collapse
Install LG software on your computer first. Then with the tablet completely off, hold VolUp and plug the tablet into the computer. That will enter LG download mode. Use the LG software on your PC to install the latest firmware available for your device. From there you can use the guides on this forum to go custom if you so desire.

[SOLVED] How do I boot into stock recovery?

From a full power off, how do I boot into stock recovery? I've tried multiple button configurations and none work.
EDIT:
I called T-Mobile and they said:
1. Power off
2. Press and hold the Vol - and Power button until the LG boot screen appears.
3. Release the Power button ONLY. Do not release the Vol - button.
4. After 1 second, press and hold the power button again. You should see the white recovery screen.
Use the Vol+/- to navigate and Power to select.

This brought up a Factory data reset menu on my H815.

Brings up factory reset on T-mo version H-811

That is the LG factory recovery.

thank you this worked

With a Verizon model, I had to keep holding both Power and Vol - until the recovery screen appeared. If I released and then re-held Power, as described above, it did not work.

When I hold down power and vol down, it boots to an IMEI display screen. It shows a long barcode. Can't get to recovery with the hold, release and hold down again the power and volume down buttons. Frustrating.

I love you so much right now. It boots into what appears to look like a default LG G4 factory reset page. For me, i clicked reset, and then yes, and surprisingly it brought me to where i wanted to go. TWRP Recovery.

THANK YOU!!!

amd206 said:
I love you so much right now. It boots into what appears to look like a default LG G4 factory reset page. For me, i clicked reset, and then yes, and surprisingly it brought me to where i wanted to go. TWRP Recovery.
Click to expand...
Click to collapse
I love you!
Your comment just saved me from doing a complete factory reset!
I never clicked "Yes" in the Factory Reset phone option because I thought it would do just that. Instead it took me to TWRP!!

gonsa said:
I love you!
Your comment just saved me from doing a complete factory reset!
I never clicked "Yes" in the Factory Reset phone option because I thought it would do just that. Instead it took me to TWRP!!
Click to expand...
Click to collapse
This is funny because It just factory reset my phone.

joesee said:
This is funny because It just factory reset my phone.
Click to expand...
Click to collapse
oh no!
how come it has different outcomes..
sorry to hear that.
Sent from my LG-H815 using Tapatalk

gonsa said:
oh no!
how come it has different outcomes..
sorry to hear that.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
The difference was that you have twrp recovery and he didn't. The question pops for both, but for those that have the original recovery it will do the factory reset.

worked
worked for me, but the first screen is the one where it ask if i want to factory reset, i had to pick YES, then again confirm, and then i was in TWRP

gonsa said:
I love you!
Your comment just saved me from doing a complete factory reset!
I never clicked "Yes" in the Factory Reset phone option because I thought it would do just that. Instead it took me to TWRP!!
Click to expand...
Click to collapse
joesee said:
This is funny because It just factory reset my phone.
Click to expand...
Click to collapse
And I get a factory reset as well on my H811, even though TWRP was already installed and working on the recovery partition.
Something else funny going on, the OS seems to kill TWRP after the next one or two boots tho. Maybe I need to set the TWRP option to allow change of the system partition to read/write? (Since apparently it writes something there that prevents the OS from killing the custom recovery after it's been installed)

Exabyter said:
And I get a factory reset as well on my H811, even though TWRP was already installed and working on the recovery partition.
Something else funny going on, the OS seems to kill TWRP after the next one or two boots tho. Maybe I need to set the TWRP option to allow change of the system partition to read/write? (Since apparently it writes something there that prevents the OS from killing the custom recovery after it's been installed)
Click to expand...
Click to collapse
I've learned a lot with LG phones over the past few weeks.
The biggest thing is.. when you first flash over TWRP, you HAVE to reboot into recovery before you try rebooting the system, or else the bootloader will overwrite the TWRP install and replace it with the factory recovery.img. (You probably already know this.) To make sure it boots into TWRP first, since fastboot doesn't have a "reboot-recovery" command.. I just pull the battery then do the button combination to boot directly into TWRP. Doing this allowed me to say "YES" to the question "Do you want to factory reset the phone".
I don't know how many times I've wiped my phone because of this:
1. flash TWRP.
2. reboots (tries to hold the finger combo but failed - and didn't know it)
3. gets asked question - "do you want to factory reset the phone"
4. I hit YES expecting it to take me to TWRP - but instead it wipes the phone and puts stock recovery back on.
Just do this:
1. flash TWRP.
2. PULL THE BATTERY
3. Use finger combo to boot recovery.
4. When asked "do you want to factory reset the phone" - hit YES
5. TWRP boots in like 5 seconds.
This has worked now for my G4 and my V10 since they both have this issue. The V20 however does not (my current phone) - so hopefully LG is done with this crap!!
Good luck!

joesee said:
The biggest thing is.. when you first flash over TWRP, you HAVE to reboot into recovery before you try rebooting the system, or else the bootloader will overwrite the TWRP install and replace it with the factory recovery.img. (You probably already know this.)
Click to expand...
Click to collapse
What was happening on my H811 was that it was either corrupting the recovery partition afterwards or just invalidating it or something because instead of getting back the stock recovery, I'd get the scary "broken robot" screen when trying to boot into recovery.
joesee said:
To make sure it boots into TWRP first, since fastboot doesn't have a "reboot-recovery" command.. I just pull the battery then do the button combination to boot directly into TWRP. Doing this allowed me to say "YES" to the question "Do you want to factory reset the phone".
I don't know how many times I've wiped my phone because of this:
1. flash TWRP.
2. reboots (tries to hold the finger combo but failed - and didn't know it)
3. gets asked question - "do you want to factory reset the phone"
4. I hit YES expecting it to take me to TWRP - but instead it wipes the phone and puts stock recovery back on.
Click to expand...
Click to collapse
The technique I've learned to appreciate (which apparently is a new thing, and is now the suggested method for installing via fastboot according to the twrp.me website) is to load a copy of TWRP into RAM to do the flashing and rebooting. ("fastboot boot [TWRP_IMAGE_NAME]")
I try to avoid battery pulls as much as possible but I have never relied on them on a phone the way I have done over the last week (just had my G4 for about a week now) due to these funky mechanisms that LG has for getting into recovery/bootloader/download mode.
joesee said:
Just do this:
1. flash TWRP.
2. PULL THE BATTERY
3. Use finger combo to boot recovery.
4. When asked "do you want to factory reset the phone" - hit YES
5. TWRP boots in like 5 seconds.
This has worked now for my G4 and my V10 since they both have this issue. The V20 however does not (my current phone) - so hopefully LG is done with this crap!!
Click to expand...
Click to collapse
TBH I am fearful of even trying it now. (Especially since I just read about how a nandroid backup done from TWRP doesn't backup anything on the /data partition, either.. )
Which makes me even more appreciative of LineageOS's "advanced reboot" power button menu. :good:
One of the problems in my view with this LG system is that it can be very difficult to reliably press both the power and volume at the same time on this phone due to it's unusual placement of those buttons. Much harder than on a phone with those buttons on opposite sites of the device. Not to mention this silly "press both these, then release one, then 1s later press that one again" stuff.
And due to the way they designed these sequences, which among other things often have no way to easily escape them (can you imagine having this on a phone with a non-removable battery?? ), but worse, have defaults that progress to another state without any user interaction (because of the limitations of this control logic - eg, if you boot to bootloader but can't escape and don't do anything in 2 minutes, the device automatically reboots), I personally have to wonder if this doesn't make a significant contribution to the infamous bootloop issues that lots of people are having with recent LG's like the G4, G5, V20, etc.
joesee said:
Good luck!
Click to expand...
Click to collapse
Thanks.

Broken android when trying to enter recovery

Hi!
Today I unlocked bootloader and installed a custom rom and everything went fine.
Now, when I tried to flash the camera mod app, I couldn't enter TWRP. When trying to do it with the restart option it shows a broken android and I have to remove battery to get the phone running again. Manual (holidng down vol button + power button, as well as holding down buttons and releasing them for 1s) is also not working.
The phone works fine, but I would like to have TWRP working.
Can I just reinstall twrp like the first time?
Thank you

Jojo5678 said:
Hi!
Today I unlocked bootloader and installed a custom rom and everything went fine.
Now, when I tried to flash the camera mod app, I couldn't enter TWRP. When trying to do it with the restart option it shows a broken android and I have to remove battery to get the phone running again. Manual (holidng down vol button + power button, as well as holding down buttons and releasing them for 1s) is also not working.
The phone works fine, but I would like to have TWRP working.
Can I just reinstall twrp like the first time?
Thank you
Click to expand...
Click to collapse
What device? H811? Needs to know more about what software you flashed.
If you can get into fastboot you can push twrp there.

Hmmm i flashed xperia phones locked bootloader twrp on my h818 and i got this error too so it means it changed the recovery but can't start it?
Sent from my LG-H818

Vseprz said:
What device? H811? Needs to know more about what software you flashed.
If you can get into fastboot you can push twrp there.
Click to expand...
Click to collapse
H815 EUR. I installed the 2.8.7.0 and the 2.8.6.1 from https://dl.twrp.me/h815/. I tried it multiple times with these 2 versions and everytime I get the same error.
Connecting it to pc and entering recovery works without a problem, though.
Edit: I flashed Genisys 3.7

Jojo5678 said:
H815 EUR. I installed the 2.8.7.0 and the 2.8.6.1 from https://dl.twrp.me/h815/. I tried it multiple times with these 2 versions and everytime I get the same error.
Connecting it to pc and entering recovery works without a problem, though.
Edit: I flashed Genisys 3.7
Click to expand...
Click to collapse
So you can get into twrp with "adb reboot recovery"?
Your problem is you can not access it from neither the rebooter app nor the hardware buttons?
When using the harware buttons, hold vol down then press and hold power until the logo shows up. Release power for a second then press and hold again.

Vseprz said:
So you can get into twrp with "adb reboot recovery"?
Your problem is you can not access it from neither the rebooter app nor the hardware buttons?
When using the harware buttons, hold vol down then press and hold power until the logo shows up. Release power for a second then press and hold again.
Click to expand...
Click to collapse
Correct, I can get in twrp with "adb reboot recovery"
I was releasing both the volume and power buttons. Tried it again, but I came to a menu where I could only choose whether to delete all data (factory reset) or not. When choosing NO, the phone proceeded to boot normally.

Jojo5678 said:
Correct, I can get in twrp with "adb reboot recovery"
I was releasing both the volume and power buttons. Tried it again, but I came to a menu where I could only choose whether to delete all data (factory reset) or not. When choosing NO, the phone proceeded to boot normally.
Click to expand...
Click to collapse
That menu is perfectly normal. You have to select okay. Because you have a custom recovery it will not factory reset your phone but rather boot you into twrp.

Vseprz said:
That menu is perfectly normal. You have to select okay. Because you have a custom recovery it will not factory reset your phone but rather boot you into twrp.
Click to expand...
Click to collapse
Oh wow thank you very much. Everything works now

Booting into TWRP

I can't seem to boot into TWRP without using a computer to adb reboot recovery etc
is it possible?
am i being an idiot?
please help
sorry new to LG's only ever had a samsung

billy_hilton said:
I can't seem to boot into TWRP without using a computer to adb reboot recovery etc
is it possible?
am i being an idiot?
please help
sorry new to LG's only ever had a samsung
Click to expand...
Click to collapse
Just power off the phone. Power it back on with pressing the volume button down and the power button at the same time, when the LG logo appears release the power button for a couple of seconds and press it again till you boot into the factory reset menu. Then you just have to select yes two times and then your phone will boot up TWRP Recovery. Don't be afraid of the factory reset menu, this is how the LG G4 boots into TWRP, it wont reset your phone. :good:

Mr.FREE_Bird said:
Just power off the phone. Power it back on with pressing the volume button down and the power button at the same time, when the LG logo appears release the power button for a couple of seconds and press it again till you boot into the factory reset menu. Then you just have to select yes two times and then your phone will boot up TWRP Recovery. Don't be afraid of the factory reset menu, this is how the LG G4 boots into TWRP, it wont reset your phone. :good:
Click to expand...
Click to collapse
ah okay thank you so much was scared of that yes button :')

billy_hilton said:
ah okay thank you so much was scared of that yes button :')
Click to expand...
Click to collapse
No problem, it was also new for me to boot up de factory reset menu to get into TWRP. But now you know how to do it with your G4 :good:

Samsung i747 Hardware button broken and BOOTLOOP after ODIN

After flashing with ODIN, my phone is stuck with a samsung logo. I tried flashing it several times but the bootloop exists. Also, I can start my phone in download mode only, no recovery mode is showing (vol up+home+power button). Then I tried TWRP but nothing works. It would be great if anyone suggested something. :crying:

Which hardware button is broken?

audit13 said:
Which hardware button is broken?
Click to expand...
Click to collapse
The volume up button. before proceeding to download mode, there is a confirmation message that says press vol up to proceed to download mode, I have to press continuously 15/20 times to do this.

You can use a USB jig to get into download mode.

audit13 said:
You can use a USB jig to get into download mode.
Click to expand...
Click to collapse
Yeah, I have got into download mode and flashed with odin several times, but the bootloop continues.

You probably need to perform a factory reset from stock recovery which, I assume you can't do since the volume up button is broken.

audit13 said:
You probably need to perform a factory reset from stock recovery which, I assume you can't do since the volume up button is broken.
Click to expand...
Click to collapse
umm, any idea/suggestions? Thanks a lot by the way.

Are you flashing with reset selected in Odin? Can't think of any other way to do a factory reset.

audit13 said:
Are you flashing with reset selected in Odin? Can't think of any other way to do a factory reset.
Click to expand...
Click to collapse
Could you please elaborate and guide me through the process?

Sorry, I meant to say select the auto-reboot option. Sometimes, after flashing a stock ROM with auto reboot selected, the phone will go into recovery and perform a wipe of at least cache.
If auto reboot doesn't solve the issue, I'm not sure what else to suggest other than fixing the volume button or replacing the motherboard.