I've got to give one of the units back and need to decide which.
Since it's possible to flash CW recovery using ODIN both locked/unlocked bootloader devices, is there a benefit to having an "unlocked" bootloader?
I've been able to flash both locked/unlocked as well install Kernels..
I understand, nvflash can't be used on locked bootloader units.. but it seems (from what I understand and have read via searching), most everything can be accomplished via ODIN + CW.
Thanks!
scmguru said:
I've got to give one of the units back and need to decide which.
Since it's possible to flash CW recovery using ODIN both locked/unlocked bootloader devices, is there a benefit to having an "unlocked" bootloader?
I've been able to flash both locked/unlocked as well install Kernels..
I understand, nvflash can't be used on locked bootloader units.. but it seems (from what I understand and have read via searching), most everything can be accomplished via ODIN + CW.
Thanks!
Click to expand...
Click to collapse
Lock vs unlock means that if you are unlock you can flash kernels made for ubuntu and other linux distro. Locked bootloaders are generally limited to the samsung kernel so it would be harder to flash other things and make some serious mods that would require nvflash.
Thanks for the reply. Will keep unlocked. Cheers.
Hello,
is it possible to relock bootloader after ulocking it? I need it due to the warranty.
in short, No. please search the forum for details, as this is discussed.
i suggest you just try the luck sending the phone in and not mention anythong about the bootloader. of course should flash to stock rom if that still can be done
Sent from my LG-P769 using xda premium
@stanislavdavid
Why you want the warranty? Want to sell it later? Or did it already got any fault?
mrmathematica said:
in short, No. please search the forum for details, as this is discussed.
i suggest you just try the luck sending the phone in and not mention anythong about the bootloader. of course should flash to stock rom if that still can be done
Sent from my LG-P769 using xda premium
Click to expand...
Click to collapse
I think, he did not say he is sending to service center. He just said he needs it for warranty (in future).
See how smart these new pals are. May be we are all idiots to unlock it without giving a second thought. lolz
I do not have yet any fault, I just want to try alternative rom and I want to have way back to stock rom
My last phone had after 3 month of use some problem and I must return it. So I just want to know if it is possible
I thought that flashing the stock u-boot & x-boot will re-lock the bootloader.
http://forum.xda-developers.com/showpost.php?p=37250265&postcount=10
http://forum.xda-developers.com/showpost.php?p=39761686&postcount=30
Maybe this should be in a sticky post somewhere. I have seen a few people ask about re-locking the bootloader.
If this works, we should start collecting u-boot & x-boot images.
There is no way to relock bootloader. Here is good post about bootloader and omap4430, it applies to L9s. In our case ics xloader ,uboot or both simply don't recognize that bootloader had been unlocked and it just appears locked.
I see. Thanks you.
So, you guys with unlocked bootloader, have no problem with fact that your devices have no warranty?
If you don't mention the unlocked bootloader to the customer service and your device has an unrooted stock ROM, there is only a few chance that they check the bootloader if it is for an hardware issue.
It only requires a little bit luck .
If i will make root by this:
http://forum.xda-developers.com/showthread.php?t=2173465
With locked bootloader, then install cwm. May I then install cyanogenmod and if something goes wrong may i return to original stock rom together with warranty?
Sent from my LG-P760 using xda app-developers app
stanislavdavid said:
If i will make root by this:
http://forum.xda-developers.com/showthread.php?t=2173465
With locked bootloader, then install cwm. May I then install cyanogenmod and if something goes wrong may i return to original stock rom together with warranty?
Sent from my LG-P760 using xda app-developers app
Click to expand...
Click to collapse
cwm requires unlocked bootloader
I think you need to install the "CWM Recovery" bootloader to flash a custom ROM. And with a locked bootloader, you can only have a bootloader signed by LG (not a "CWM Recovery" one).
However, you can try this : http://forum.xda-developers.com/showthread.php?t=2095825
It is a "CWM Recovery" which is not directly placed inside the bootloader (instead, it adds a step on Android start). When I tried it on my P760 (when it still had a locked bootloader), it failed (but you can still try).
OperationNT said:
I think you need to install the "CWM Recovery" bootloader to flash a custom ROM. And with a locked bootloader, you can only have a bootloader signed by LG (not a "CWM Recovery" one).
However, you can try this : http://forum.xda-developers.com/showthread.php?t=2095825
It is a "CWM Recovery" which is not directly placed on in the bootloader. When I tried it on my phone, it failed (but you can still try).
Click to expand...
Click to collapse
Actually that recovery will not work on jb,
Ok, that's why it failed for me.
Now, you have your answer, you must stay on ICS if you wish to keep your bootloader locked with CWM Recovery.
However, I would be curious to know what happens if a JB ROM (custom or stock) is installed through using this "locked bootloader CWM Recovery".
OperationNT said:
Ok, that's why it failed for me.
Now, you have your answer, you must stay on ICS if you wish to keep your bootloader locked with CWM Recovery.
However, I would be curious to know what happens if a JB ROM (custom or stock) is installed through using this "locked bootloader CWM Recovery".
Click to expand...
Click to collapse
I received "Security Error" when attempting to boot when I tried this a while back. It just won't work because the kernel needs to be signed by LG.
So may I at least root phone or even root is not possible without unlocked bootloader?
Sent from my LG-P760 using xda app-developers app
Root is possible with boolloader, try this method (it worked fine for me while I wasn't on an unlocked bootloader) :
http://forum.xda-developers.com/showthread.php?t=2173465
relocked
stanislavdavid said:
Hello,
is it possible to relock bootloader after ulocking it? I need it due to the warranty.
Click to expand...
Click to collapse
You do not know resealed on, it is true that and forth they have forgotten to write never to can be relocked
sometihing new
Hello, does anybody know something new about bootloader relock?
stanislavdavid said:
Hello, does anybody know something new about bootloader relock?
Click to expand...
Click to collapse
Not possible yet.
I thought it was necessary to unlock the bootloader on android phones before i could root them and flash different roms. A buddy of mine had rooted his old s3 but forgot to unlock the bootloader, so when he tried restarting it, it soft bricked. For the longest time I thought you had to unlock the bootloader then root the phone in order to flash custom roms, have I been wrong all this time?
Think of the Loki workaround as a way to trick the bootloader into flashing improperly signed files. Its like using a credit card on the bolt of a locked door. The door is still locked but you get through anyway.
brizey said:
Think of the Loki workaround as a way to trick the bootloader into flashing improperly signed files. Its like using a credit card on the bolt of a locked door. The door is still locked but you get through anyway.
Click to expand...
Click to collapse
And what are the risks of using the loki tool if you use it correctly? if there is an OTA update to the phone, will it mess it all up?
You don't you the tool...the developers do. And technically, it is only used for flashing a recovery and flashing ROMS with the recovery. You can root without unlocking the bootloader because there is an pre-release official rootable kernel than can be flashed with Odin. It flashes because it is legit.
So I should be able to just go to the how to root page on here http://forum.xda-developers.com/showthread.php?t=2290798 and follow the instructions and flash one of the roms as usual?
yes,go ahead
A REQUEST TO DEVS
There are different sources for developing roms now,but some of them have a MM bootloader which needs to be re unlocked again.so i request devs to add the status of bootloader(will their rom keep the bootloader unlocked or will it lock it).This would be very helpful for me and some others as i see there is always questions on the roms threads about the bootloader status.
PLEASE MAKE IT CLEAR:fingers-crossed:
AND DONT JUST IGNORE THE POST IF YOU THINK THIS MUST HAPPEN ATLEAT COMMENT ABOUT IT?
Try this and feel free to help
How to unlock relocked bootloader?
The same way you unlocked it first. Or restore a backup that you made with unlocked bootloader.
Hello, If we restore à backyp, the bootloader is unlocked ?
Yes, if you made a full backup. I made mine with Alka TWRP, and restoring (never restore firmware partition!) sets the bootloader back to unlocked.
Ok thanks I restored everything just not the firmware, it's that ?
Check it yourself. Put it in fastboot mode, and do "fastboot oem device-info".
hey everyone. trying to OEM unlock the TWRP bootloader. When I type "fastboot OEM unlock" it will reboot into TWRP bootloader, and nothing unlocks. I know this because when I type "fastboot oem device-info" it says "unlocked FALSE".
I have OEM unlock and USB debugging enabled.
This is a phone with previously successfully installed CM13, and now I'm trying to revert to stock/unrooted. I can't seem to flash the recovery at all here because I can't get the damn thing to unlock.
Any ideas?
Did you lock the bootloader ? If your flashing Roms and custom recoverys imagine its already unlocked. Bootloader won't lock itself. If you want full stock just flash any OS2 firmware with twrp. You can worry about stock recovery after. I would just leave the bootloader unlocked won't hurt anything.
I had the same issue not long ago. Finally, i used the mega unbrick guide, but warning, all the data is lost
Ps: Sorry for bad english
hey, thanks for the response. I have been following the following tutorial (and others similar for installing CM13):
(great, website won't let me post it here... it's the unlockr oneplus x guide)
so yes, I originally flashed the stock recovery and replaced it with the one from the tutorial. There were a few hiccups during setup, which may have affected why I can't easily update nightly now, so now I'm trying to revert to the unrooted stock state so I can try from scratch, hopefully fixing the issues I'm seeing now. The problem is that I can't flash the recovery using the stock recovery... I can't even update the damn recovery because it's locked. Is this what is meant by a 'soft brick' ?