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[Solved] How to Re-lock Bootloader and go back to stock?

Hello,
I want to relock the bootloader and go back to stock.
I tried flashing stock firmware using fastboot.
fastboot oem lock begin
flashed stock firmware
fastboot oem lock
But Bootloader is still unlocked.
I got message as first flash full stock system. Something like that. Don't remember as I tried this a week ago.
Any help will be highly appreciated.
Thank you in advance.
Edit : I also tried the Windows tool provided by one of the members but it failed too.
I used the same to unlock in the first place.

I think it depends on what you want to achive. While you might be able to re-lock the bootloader (which means it can't be flashed without being unlocked again), you will never ever get rid of the unlock message again. This - to my understanding - is an efuse which is permanently set. If you want to remove the unlocked bootloader boot message, I'd stay unlocked and would just flash a different boot logo (logo.bin) where the unlocked gfx are replaced with the standard gfx thus showing the standard boot logo.

I would like to relock the bootloader altogether.

I don't think you can. You can lock it but you can't remove the warning that it has been tampered with.

I don't care about the warning.
I just want to re-lock it.

Flashing the Official firmware for my Country - India did the job.
Last time I tried with firmware for ASIA.
I don't see any reason for that to fail but you never know.
Thanks for replying.

hey can you give me the link for that rom im also using the indian version but unable to lock the bootloader

unlock after relock

several questions in no particular order:
Does the "OEM Unlocking" toggle do anything on the XT1572?
If I issue the fastboot OEM LOCK command after having sucessfully unlocked the device before, do I need to go through the full data wipe+send oem data+flash unlock code process again?
Lastly, I was able to flash the MM firmware for my Single SIM AISA model XT1572 despite having the bootloader locked (I think).
Is that normal that I can flash the official moto firmware using just fastboot without having to tweak with anything else?
I presume that since the digital signatures are correct the bootloader has no issue accepting the MM files.
Not quite the end of the world if I have to wipe everything and start over (it's only been a day) but I regret not knowing earlier. Nor did I expect to get this far with a relocked boot loader. Was trying to add SuperSU and found that while I can overwrite flash the stock recovery I cannot flash TWRP.

psyvenrix said:
several questions in no particular order:
Does the "OEM Unlocking" toggle do anything on the XT1572?
If I issue the fastboot OEM LOCK command after having sucessfully unlocked the device before, do I need to go through the full data wipe+send oem data+flash unlock code process again?
Lastly, I was able to flash the MM firmware for my Single SIM AISA model XT1572 despite having the bootloader locked (I think).
Is that normal that I can flash the official moto firmware using just fastboot without having to tweak with anything else?
I presume that since the digital signatures are correct the bootloader has no issue accepting the MM files.
Not quite the end of the world if I have to wipe everything and start over (it's only been a day) but I regret not knowing earlier. Nor did I expect to get this far with a relocked boot loader. Was trying to add SuperSU and found that while I can overwrite flash the stock recovery I cannot flash TWRP.
Click to expand...
Click to collapse
As far as I am concerned relocking the bootloader wont wipe your data and yes about the question regarding the stock firmware
PS: Dont relock your bootloader once you unlock it the warranty doesnt come back even if you lock it again

XT1700 Fastboot oem unlock fails

I seem to have lost the ability to unlock the bootloader of my XT1700. I previously had unlocked the bootloader and installed TWRP and SuperSU, which took a while to figure out, but it worked. Today I tried to install a newer version of the stock firmware using SP flash tool (from here), which seemed to work fine, except now I find I am unable to reinstalled TWRP or SuperSU because I cannot unlock the boot loader.
When the phone boots, I still see the "device unlocked" message, and I have enabled oem unlocking and USB debugging in the developer options menu, however when I go into fastboot mode, if I run the "fastboot oem unlock" command, when the phone prompts me to press up or down, I get an "unlocking failed" error, and Fastboot reports "Unlock operation is not allowed"
Any ideas on how I can unlock this device again?

So it seems like those firmware images must have locked boot loaders. I ended up installing an xt1706 firmware instead (from here) and was able to unlock the boot loader successfully.
Anyone know where to get xt1700 stock firmwares with unlocked boot loader?

Relock bootloader problem - Still require signed boot.img? [QUALCOMM]

I'm trying to get one of my E4's ready to sell (I have two of them) and need to relock the bootloader so that the N/A message goes away. I reinstalled the stock firmware provided here using fastboot (and followed the appropriate oem locking steps) but at the very end I get:
Code:
Still require signed boot.img
I am assuming nobody has found a workaround for this as Lenovo hasn't provided official stock firmware and I haven't seen any posts about a solution? Would appreciate any insight.

Not possible currently, just let the buyer know that the bootloader is unlocked and it's root ready lol.

Is it still currently not possible to relock the bootloader?

AZImmortal said:
Is it still currently not possible to relock the bootloader?
Click to expand...
Click to collapse
fastboot oem lock_bootloader
Then go to Motorola.com grab a stock image
Fastboot flash boot boot.img and everything else too.
Fastboot flash
bootloader
oem
Boot
Logo
system
Etc....
I did this and had to use my code that they emailed me to unlock the boot loader again.

Bootloader Unlock

Hello all! I have been trying to unlock my bootloader on my SGP311. I have searched the threads, followed the instructions, and still have problems. i initially looked at my service menu to determine if it is unlockable and it said yes. I then went through the steps to unlock it and it kept saying failed. Then, it finally worked, and my tablet rebooted. i got dual recovery loaded and then proceeded to wipe and install lineageOS from recovery. recovery kept failing to install the new rom. i then had to reflash a stock rom because the tablet wouldnt even boot into recovery again. now my service menu simply says rooting status: unknown and says nothing about the bootloader. What the heck happened?

Gilly86 said:
Hello all! I have been trying to unlock my bootloader on my SGP311. I have searched the threads, followed the instructions, and still have problems. i initially looked at my service menu to determine if it is unlockable and it said yes. I then went through the steps to unlock it and it kept saying failed. Then, it finally worked, and my tablet rebooted. i got dual recovery loaded and then proceeded to wipe and install lineageOS from recovery. recovery kept failing to install the new rom. i then had to reflash a stock rom because the tablet wouldnt even boot into recovery again. now my service menu simply says rooting status: unknown and says nothing about the bootloader. What the heck happened?
Click to expand...
Click to collapse
You can't install LOS Rom from the dual recovery (XZDR). By flashing stock ROM, you bootloader may be locked again.
Check this guide to unlock it, and install LOS.

It simply will not let me unlock the bootloader anymore. And I can't seem to find a firmware that I can flash to get me to the appropriate version

so far, part of the problem is flashtool in androxyde still using the command fastboot -i 0x0fce oem unlock 0xkey. windows 10 denies this command every time and should be fastboot oem unlock 0xkey. But even doing so manually through the cmd prompt, it still will not let me unlock the bootloader. does anyone have a ftf file that has an unlockable bootloader? seems mine locked up completely when i reflashed the rom

Gilly86 said:
so far, part of the problem is flashtool in androxyde still using the command fastboot -i 0x0fce oem unlock 0xkey. windows 10 denies this command every time and should be fastboot oem unlock 0xkey. But even doing so manually through the cmd prompt, it still will not let me unlock the bootloader. does anyone have a ftf file that has an unlockable bootloader? seems mine locked up completely when i reflashed the rom
Click to expand...
Click to collapse
bootloader is in device, not in firmware, so no such firmware exist you ask for.