Flash CM13 with locked bootloader - G4 Q&A, Help & Troubleshooting

Hello guys.
I'm really waiting for lg's bootloader unlock support for TWN version, but I got a question about that.
If I root my phone and using flashfy, can I flash CM13 with locked bootloader?

It wouldnt flash it would probably would brick your device and i wouldnt recommend it, Its an unsigned zip so yeah but trying to get safestrap on this thing would be nice

subkm said:
Hello guys.
I'm really waiting for lg's bootloader unlock support for TWN version, but I got a question about that.
If I root my phone and using flashfy, can I flash CM13 with locked bootloader?
Click to expand...
Click to collapse
Better don't do it, consquences may be very ugly.

Related

Unlocked Bootloader and rooted 4.0.4.062

Hi Guys, sorry for this noobish question
I have unlocked my bootloader R800i and rooted it using fastboot method
My question is, if i relock my bootloader, will i lose my root and will i be able to do OTA update for ICS coming end of April?
RezaFaliq said:
Hi Guys, sorry for this noobish question
I have unlocked my bootloader R800i and rooted it using fastboot method
My question is, if i relock my bootloader, will i lose my root and will i be able to do OTA update for ICS coming end of April?
Click to expand...
Click to collapse
You can have root without unlocked bootloader
but It makes me wonder why you would revert back to locked?
just wait for someone to make a ROM / nandroid and flash the new file lol.
OTA is for people who aren't used to fooling with there device
apparently i tried rooting but i cant root without unlocking bootloader, only after i unlocked the bootloader i manage to get root
so it is advisable to just keep my unlock bootloader and flash new roms using Flashtool?
RezaFaliq said:
apparently i tried rooting but i cant root without unlocking bootloader, only after i unlocked the bootloader i manage to get root
so it is advisable to just keep my unlock bootloader and flash new roms using Flashtool?
Click to expand...
Click to collapse
If you want a practically guaranteed method of rooting, yes that would be easiest. FTFs only come out like 1-2 weeks at most after the update is sent out anyway

[Q] question about bootloader

hi sorry for noob question.
i rooted my phone a while ago, and i think i remember unlocking bootloader but im not sure. i DO have TWRP recovery, does that mean that i had to unlock my bootloader to get it; thus it is unlocked?
thanks!
souvasaurus said:
hi sorry for noob question.
i rooted my phone a while ago, and i think i remember unlocking bootloader but im not sure. i DO have TWRP recovery, does that mean that i had to unlock my bootloader to get it; thus it is unlocked?
thanks!
Click to expand...
Click to collapse
Since u r rooted and already have custom recovery flashed,there's no need to do anything else..u can now flash custom rom of ur need via recovery.
International Samsung devices have an unlocked bootloader when you buy it.
So it's necesseray but already done by the manufacturer.

Cannot Seem To Install Custom Recovery. Rooted And I THINK Bootloader Is Unlocked

Cannot seem to install custom recovery. Rooted and I THINK bootloader is unlocked.
Hi everyone, I'm in dire need of help.
I believe my bootloader is unlocked and I'm rooted using the one click method. But no matter what I do I can't seem to get a custom recovery installed. Please help me and advise me on what to do.
itsmelabeed said:
Hi everyone, I'm in dire need of help.
I believe my bootloader is unlocked and I'm rooted using the one click method. But no matter what I do I can't seem to get a custom recovery installed. Please help me and advise me on what to do.
Click to expand...
Click to collapse
After you unlock your bootloader the splashscreen when booting has a WHITE background, not black. Unless you have seen and replaced the splashscreen then you haven't unlocked the bootloader and you can flash until the cows come home but it won't do any good...
ultramag69 said:
After you unlock your bootloader the splashscreen when booting has a WHITE background, not black. Unless you have seen and replaced the splashscreen then you haven't unlocked the bootloader and you can flash until the cows come home but it won't do any good...
Click to expand...
Click to collapse
Ah you're right. My bootloader isn't flashed after all. And even that isn't possible for some reason, neither the unofficial or official way is working
Oh my God, I don't know how but the official bootloader unlock tool just worked! Victory!
itsmelabeed said:
Oh my God, I don't know how but the official bootloader unlock tool just worked! Victory!
Click to expand...
Click to collapse
Congrats, just be aware now though that you are without warranty and won't be on the OTA list from ASUS...
ultramag69 said:
Congrats, just be aware now though that you are without warranty and won't be on the OTA list from ASUS...
Click to expand...
Click to collapse
Even if your bootloader is unlocked, still u will receive OTA updates.
My Z008 is unlocked and rooted. still i receive OTA updates. I just unroot and update the OTA and then re-root.
Siddk007 said:
Even if your bootloader is unlocked, still u will receive OTA updates.
My Z008 is unlocked and rooted. still i receive OTA updates. I just unroot and update the OTA and then re-root.
Click to expand...
Click to collapse
Official unlock tool or XDA unlock tool?
Once you unlock using ASUS's tool it removes you from the update server or so it has been said...
You can still download from ASUS site and flash through recovery but it generally don't get OTA's...
ultramag69 said:
Official unlock tool or XDA unlock tool?
Once you unlock using ASUS's tool it removes you from the update server or so it has been said...
You can still download from ASUS site and flash through recovery but it generally don't get OTA's...
Click to expand...
Click to collapse
I unlocked using xda unlock tool
Siddk007 said:
I unlocked using xda unlock tool
Click to expand...
Click to collapse
My point exactly. OP used official tool, no OTA for him...

How to pass LG G4 Marshmallow to CM13 or another custom ROM?

Hello, has passed a lot of time since my last thread. This time, I'm requesting your help about something that every time I read a related thread turns more complicated.
I just want to know if I can flash CyanogenMod 13 or another custom ROM if I have an LG G4 with official Android Marshmallow V20c (not rooted and with locked bootloader, because I don't know if I can take the risk), because I learned how to root and unlock the bootloader, but for example, CM13 needs a V20a stock ROM and when I flashed that version with LGUP I didn't have signal and com.android.process wasn't working.
I hope you can give me a vision, very easy to understand, because the threads are not very explicit.
Thanks and regards!
chrisdlc119 said:
Hello, has passed a lot of time since my last thread. This time, I'm requesting your help about something that every time I read a related thread turns more complicated.
I just want to know if I can flash CyanogenMod 13 or another custom ROM if I have an LG G4 with official Android Marshmallow V20c (not rooted and with locked bootloader, because I don't know if I can take the risk), because I learned how to root and unlock the bootloader, but for example, CM13 needs a V20a stock ROM and when I flashed that version with LGUP I didn't have signal and com.android.process wasn't working.
I hope you can give me a vision, very easy to understand, because the threads are not very explicit.
Thanks and regards!
Click to expand...
Click to collapse
As simple as possible: no!
With MM and locked BL you can't get root and you can't install any custom Rom.
Jens1969 said:
As simple as possible: no!
With MM and locked BL you can't get root and you can't install any custom Rom.
Click to expand...
Click to collapse
You don't understand me. I know how to unlock my bootloader and after that root my phone, but I'm not taking the risk because I flashed the V20A stock ROM to install CM13, but I didn't have cellular signal and because that I didn't try to unlock and root my phone.
Maybe this question is more useful: Can I install CM13 when I have a V20C stock ROM and not the V20A one?
Thanks and regards.
You can flash any custom rom if you have unlocked bootloader and custom recovery e.g. TWRP. Without that things you can't flash anything, because custom roms needs unlocked bootloader.
adamz667 said:
You can flash any custom rom if you have unlocked bootloader and custom recovery e.g. TWRP. Without that things you can't flash anything, because custom roms needs unlocked bootloader.
Click to expand...
Click to collapse
OK, now I understand that I can flash CM13 over V20C and not necessarily over V20A.
Enviado desde mi LG-H815 mediante Tapatalk
You can flash CM13 on any V20... (V10 being LP, V20 MM) as long as you have a MM base you can flash. However, as said above, you MUST unlock bootloader to flash CM, don't try and flash custom ROM without unlocked bootloader. You can unlock bootloader on any version as long as yours is one of the models with the ability.

how to check if my bootloader is unlocked?

i got asus zenfone 2 ww.194 z00a
maor23 said:
i got asus zenfone 2 ww.194 z00a
Click to expand...
Click to collapse
Assuming that you unlock the bootloader, root the phone and change the splash screen....
Reboot the phone.....
If Asus logo splash screen is black your bootloader is locked.
If Asus logo splash screen is white your bootloader is unlocked.
sway8966 said:
Assuming that you unlock the bootloader, root the phone and change the splash screen....
Reboot the phone.....
If Asus logo splash screen is black your bootloader is locked.
If Asus logo splash screen is white your bootloader is unlocked.
Click to expand...
Click to collapse
is black
so i do i unlock the bootloader?
maor23 said:
is black
so i do i unlock the bootloader?
Click to expand...
Click to collapse
Why do you want to unlock the bootloader?
For the time being, there is no way to unlock the bootloader in MM. May be in the near future.
If you want to unlock the bootloader in MM, you need to temporarily downgrade the bootloader to Lollipop, unlock the bootloader and upgrade back to MM by the patched bootloader.
sway8966 said:
Why do you want to unlock the bootloader?
For the time being, there is no way to unlock the bootloader in MM. May be in the near future.
If you want to unlock the bootloader in MM, you need to temporarily downgrade the bootloader to Lollipop, unlock the bootloader and upgrade back to MM by the patched bootloader.
Click to expand...
Click to collapse
i understood that if i want to upgrate to MM from LP i need a twrp and unlocked bootloader no?
maor23 said:
i understood that if i want to upgrate to MM from LP i need a twrp and unlocked bootloader no?
Click to expand...
Click to collapse
Yes
maor23 said:
i understood that if i want to upgrate to MM from LP i need a twrp and unlocked bootloader no?
Click to expand...
Click to collapse
No.
To upgrade to MM from LP your firmware has to be at least 184.
You can use OTA or download the MM from ASUS site and install the MM in ADB environment with adb sideload command.
Do not upgrade MM via TWRP. MM install package does not compatible with TWRP. However, there is guide to modified the installation script in order to work with TWRP. The guide was written a year ago for Lollipop .
If your intention is to use custom rom in MM then you need an unlocked bootloader with custom recovery like TWRP.
In that case you need to unlock the bootloader in lollipop before you upgrade to MM. Like I said, there is no direct way to unlock bootloader in MM.
If your intention is to have rooted MM, then you do not need to unlock the bootloader.
You do not need to install the TWRP. You can use tethered TWRP to flash the super su zip file.
sway8966 said:
No.
To upgrade to MM from LP your firmware has to be at least 184.
You can use OTA or download the MM from ASUS site and install the MM in ADB environment with adb sideload command.
Do not upgrade MM via TWRP. MM install package does not compatible with TWRP. However, there is guide to modified the installation script in order to work with TWRP. The guide was written a year ago for Lollipop .
If your intention is to use custom rom in MM then you need an unlocked bootloader with custom recovery like TWRP.
In that case you need to unlock the bootloader in lollipop before you upgrade to MM. Like I said, there is no direct way to unlock bootloader in MM.
If your intention is to have rooted MM, then you do not need to unlock the bootloader.
You do not need to install the TWRP. You can use tethered TWRP to flash the super su zip file.
Click to expand...
Click to collapse
hey man, thanks for the answer.
i did succsessfuly upgrade to MM, but i cant now root my phone..
do you know how can i root my phone
maor23 said:
hey man, thanks for the answer.
i did succsessfuly upgrade to MM, but i cant now root my phone..
do you know how can i root my phone
Click to expand...
Click to collapse
I answered your question in the other post.

Categories

Resources