I read online downgrading on locked bootloader will brick the phone, but for G3, specifically sprint, none of tutorials on downgrading mention anything about bootloader. So does it mean you can downgrade G3 even on locked bootloader? Specifically Im asking about Ls990 sprint model, if downgrading from firmware ZV6 to ZV4? Or Zv8 to Zv4? Thanks
Kashi88 said:
I read online downgrading on locked bootloader will brick the phone, but for G3, specifically sprint, none of tutorials on downgrading mention anything about bootloader. So does it mean you can downgrade G3 even on locked bootloader? Specifically Im asking about Ls990 sprint model, if downgrading from firmware ZV6 to ZV4? Or Zv8 to Zv4? Thanks
Click to expand...
Click to collapse
It's my first time to hear downgrading a device would brick the phone... It would either be a success or a fail(will abort and nothing will be changed). It should work via kdz, unless lg did something to prevent a downgrade.
Sent from my HTC One M9 using Tapatalk
Related
Ok so I just bought the LG G3 AT&T version and it already have the OTA version of lollipop. Is it still possible to unlock the bootloader or am I locked out? Do I need to do a TOT back to old firmware or what? Thanks!
joshuadjohnson22 said:
Ok so I just bought the LG G3 AT&T version and it already have the OTA version of lollipop. Is it still possible to unlock the bootloader or am I locked out? Do I need to do a TOT back to old firmware or what? Thanks!
Click to expand...
Click to collapse
You can root and install TWRP without downgrading.
http://forum.xda-developers.com/lg-g3/general/guide-update-to-lollipop-root-bumpd-twrp-t3048845
Hello there!
I have a locked H815 and I've had many issues with it, especially when I upgraded to 6.0 and V20D. I've got it back from repairs and it's been downgraded to Android 5.1.
I saw that it's ok to use LGUP and flash 5.1 and 6.0 firmwares and that doesn't require an unlocked bootloader nor root.
Now, I want to ask if I unlock my bootloader, will I still be able to receive OTA updates? Or updates through LG Bridge?
Also, if I install a custom ROM right now, will I be able to successfully flash the stock firmwares and have the phone as it was just with an unlocked bootloader?
Thanks!
Peshyy said:
Hello there!
I have a locked H815 and I've had many issues with it, especially when I upgraded to 6.0 and V20D. I've got it back from repairs and it's been downgraded to Android 5.1.
I saw that it's ok to use LGUP and flash 5.1 and 6.0 firmwares and that doesn't require an unlocked bootloader nor root.
Now, I want to ask if I unlock my bootloader, will I still be able to receive OTA updates? Or updates through LG Bridge?
Also, if I install a custom ROM right now, will I be able to successfully flash the stock firmwares and have the phone as it was just with an unlocked bootloader?
Thanks!
Click to expand...
Click to collapse
i beleive so, but youll also loose warranty.
raptorddd said:
i beleive so, but youll also loose warranty.
Click to expand...
Click to collapse
Thanks! That's what I wanted to know.
Hey all. So basically I recently purchased the H815T Australian optus model. It was initially on Lollipop but updated to MM & I need root so I can restore all my data from my previous device but seems I need to unlock the bootloader. Unfortunately it couldn't be done because the H815T isn't supported on the LG unlocking website. Is there another way to unlock the bootloader or rooting it? Please help guys, I really need to retrieve my data but can't do so till there is a method to root. Or would I have to downgrade to Lollipop & root? I'd immensely appreciate some assistance with this, cheers.
Stevo001457 said:
Hey all. So basically I recently purchased the H815T Australian optus model. It was initially on Lollipop but updated to MM & I need root so I can restore all my data from my previous device but seems I need to unlock the bootloader. Unfortunately it couldn't be done because the H815T isn't supported on the LG unlocking website. Is there another way to unlock the bootloader or rooting it? Please help guys, I really need to retrieve my data but can't do so till there is a method to root. Or would I have to downgrade to Lollipop & root? I'd immensely appreciate some assistance with this, cheers.
Click to expand...
Click to collapse
no bootloader unlock yet....
you need to be on LP.
but... you also need to know if you can downgrade. i for instance cant. there antirollback version you need to find out . if you can..
raptorddd said:
no bootloader unlock yet....
you need to be on LP.
but... you also need to know if you can downgrade. i for instance cant. there antirollback version you need to find out . if you can..
Click to expand...
Click to collapse
Thanks for your help. I really enjoy being on Marshmallow so don't really want to downgrade. Thankfully I got most of my whatsapp messages through google drive backup & most of the other apps did have some form of cloud storage. I'm gonna stick to MM till a rooting method does eventuate.
Hey guys. I had a VS986 back when it was 13B and all I did was downgrade to stock with LGUP and i flashed a rooted stock room, i remember doing something with chainfire "Flashfire" at the time because there is a locked bootloader issue and a custom recovery is not available..?|
Well now i have a new LG G4 VS986 that is 2BA. Can I root the 2BA or do i need to use the LGUP to downgrade to a specific version (like 13b?). And then what is the rooting procedure? YES, I tried to look it up, but i havent been following development for so long I am out of the loop and so much info from the gate is ALOT to take in.
So can someone PLEASE give me a quick run down of the rooting VS986_2BA procedure, and I can figure it out from there- Im not asking anyone to do the work for me, just alittle help. Or a link that could point me in the correct direction. I just dont want to have a new brick! Thank you!!
If you want to root 2ba you need to unlock the bootloader
https://forum.xda-developers.com/g4/general/unlock-unlock-lg-g4-device-usu-t3760451
Make sure you read the instructions and warnings because the bootloader unlock is permanent!!
Do not flash the baceband packeage you don't need it and your SIM won't be detected after flash
After you do that you should know how to get to fast boot mode and you need to flash this patch boot imge https://drive.google.com/file/d/1GH00BeWsEtKE2Ea34dXLmeMUC4Ts8XEI/view?usp=drivesdk
Here's the command
Fastboot flash boot (filename).img
And that's it all you have to do is install Magisk Manager from the play store
If you need any help please quote me
I thought that the VERIZON varient of the LGG4 had a permanently locked bootloader and was/is impossible to unlock?
robles4242 said:
I thought that the VERIZON varient of the LGG4 had a permanently locked bootloader and was/is impossible to unlock?
Click to expand...
Click to collapse
Not as of March 2018. https://forum.xda-developers.com/g4/general/unlock-unlock-lg-g4-device-usu-t3760451
I did it to my Verizon LG G4 and am now on Marshmallow, rooted by Magisk, and running XPosed. It's not a "double-click, next, next, finish" process. Read the entire OP in that link. And here is my summary of what I did https://forum.xda-developers.com/showpost.php?p=76691955&postcount=1063.
Oh wow that's awesome, I didn't know that was possible. But since you personally confirm it then I'm going to check out those links!
I wish I knew about this a month ago, I just downgraded mine and my girlfriends phones and flashed the rooted 13b system images.
Thanks for the info! ?
I just purchased a Verizon LG G8 that is unlocked and want to use it on Metro. I haven't gotten the phone yet but I would like to (if it's possible) flash a unbranded firmware. I'm confused about whether I can use LGUP or LG flash tool to do this. Can someone please tell me if this can be done and if so what is the best firmware to flash to have it unbranded with minimal bloat?
I miss the good old days on XDA where people actually came on XDA and there was always someone able to help out. I feel like that doesn't exist anymore. Too many phones and too many different carriers.
I don't think there's a patched LGUP to do this for LG G8 yet.
lentm said:
I don't think there's a patched LGUP to do this for LG G8 yet.
Click to expand...
Click to collapse
Holy shiit, someone actually answered my question! That is insane! Thanks for the info man!
Is there a y method that currently works to flash firmware on the LG g8? I would like to flash the stock unlocked carrier unbranded firmware.
There is no way to flash through LGUP or any other tools currently but you can unlock boot-loader root and install firmware package through twrp but doesn't work for T-Mobile or Metro
awireless said:
There is no way to flash through LGUP or any other tools currently but you can unlock boot-loader root and install firmware package through twrp but doesn't work for T-Mobile or Metro
Click to expand...
Click to collapse
How are you unlocking bootloader and rooting?
Shtiff1 said:
How are you unlocking bootloader and rooting?
Click to expand...
Click to collapse
There is a thread for it and same thing at the g7 thread. Just use octoplus jtag pro to flash the v35 engineering boot-loader to device and from there you can unlock boot-loader and do all the stuff. If you dont have octoplus jtag pro there is a guy who will do it for you he charges i dont know how much though.