[Q] Can I downgrade my bootloader if I unlocked it? - Moto X Q&A

Hi guys,
I have my moto x unlocked but I want to downgrade to 4.4.2 version, will my phone bricked?

Locked or unlocked does not matter. You can not download certain version of GPT.BIN and MOTOBOOT.IMG (motoboot contains bootloader and other parts).
Same warnings apply if you are locked bootloader or unlocked bootloader!!

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Questions about sunshine unlock tool

Hi, I am using VZW X with stock 4.4.2 and I would like to purchase BL unlock code from Sunshine tool. However I am not sure if this is permanent. So basically I have below questions:
1, If I flash stock 4.4.2 after unlocking BL using that tool, will my BL be locked again? (Flash BL with same version)
2, If I flash higher stock ROM like 4.4.4 or future Lollipop after unlocking BL using this tool, will my BL be locked again? (Flash BL with higher version)
My guessing to those would be no and yes. Thanks in advance for your time to read this or even kind enough to reply me
First off, the sunshine doesn't provide you with the unlock code. It unlocks it for you and that's all. OTA's and sbf's will not relock your bootloader <inert stock warning about never downgrading>. The only thing that will relock it is the explicit fastboot command. If you had the code you could unlock-relock-reunlock to your heart's content but I believe sunshine will only work to unlock the first time.
cntryby429 said:
First off, the sunshine doesn't provide you with the unlock code. It unlocks it for you and that's all. OTA's and sbf's will not relock your bootloader <inert stock warning about never downgrading>. The only thing that will relock it is the explicit fastboot command. If you had the code you could unlock-relock-reunlock to your heart's content but I believe sunshine will only work to unlock the first time.
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Thanks. Can I understand your word as after I purchase unlock from sunshine I can flash BL to current version or higher version and still keep it unlocked? And for your explicit command I believe you mean 'fastboot OEM lock', is it correct?
Yes. It has been posted recently a few times around this forum which bootloader codes correspond to which android version numbers. Always flash a matching or higher version to what you have and don't be tempted to get around that rule by only flashing parts of an sbf via fastboot. It's very risky and has bricked a lot of people's phones.
Yes, "fastboot oem lock" (or mfastboot oem lock) is the only way to end up with a relocked bootloader. Mind you that's "relocked". There is no way to go back to "locked" status to hide that you previously unlocked.
Remember that flashing SBFs and taking OTAs will unroot but you can always root again with an unlocked bl.
flaxton said:
Hi, I am using VZW X with stock 4.4.2 and I would like to purchase BL unlock code from Sunshine tool. However I am not sure if this is permanent. So basically I have below questions:
1, If I flash stock 4.4.2 after unlocking BL using that tool, will my BL be locked again? (Flash BL with same version)
2, If I flash higher stock ROM like 4.4.4 or future Lollipop after unlocking BL using this tool, will my BL be locked again? (Flash BL with higher version)
My guessing to those would be no and yes. Thanks in advance for your time to read this or even kind enough to reply me
Click to expand...
Click to collapse
To expand and add a little to what @cntryby429 has already said..
Unlike the standard/official way of unlocking the bootloader (getting the code and issueing a fastboot oem unlock uniquecode), using Sunshine to unlock the bootloader is exploiting a vulnerability on the phone. To put it another way, Sunshine is a "hack." You do not get the bootloader unlock code. Because its a Hack, it only works ONE TIME. So if you unlock with sunshine, then relock later, you will not be able to unlock again.
When unlocking the official way (using the bootloader unlock code), flashing roms and newer SBFs and OTAs does not re-lock you. Re-locking is only possible by following the process and doing a Fastboot Oem Lock. All reports so far have been, that if you use Sunshine while on 4.4.2 or lower, flashing 4.4.4 SBF does not relock you. I don't know enough about Sunshine, and I haven't seen it been said, so I don't know what will happen if/when Lollipop comes to the 2013 X. i.e I've not seen it asked/answered... What if lollipop for the 2013 X contains patches for the vulnerability exploited by Sunshine, will it undo Sunshine's effects and will you be locked again?
As for the Downgrade warning, and bootloader versions...
30.70 = original 4.2.2
30.71 = 4.2.2 OTA with camera update
30.B2 = 4.4
30.B4 = 4.4.2
30.B7 = 4.4.4
and see -> http://mark.cdmaforums.com/MotoX-Downgrade.htm

[Q] get back to stock lollipop without bootloader re-locking

Hello, i have an XT1058 ATT moto x i got 4.4.3 when i bought the bootloader was unlockable i did it using sunshine now i am on cm 12.1 nightlies. is it possible to revert to 4.4.4 without installing bootloader and if i get the lollipop update will it lock my bootloader again and if it does then will i be able to use sunshine to unlock it again ??
rjcrystal199 said:
Hello, i have an XT1058 ATT moto x i got 4.4.3 when i bought the bootloader was unlockable i did it using sunshine now i am on cm 12.1 nightlies. is it possible to revert to 4.4.4 without installing bootloader and if i get the lollipop update will it lock my bootloader again and if it does then will i be able to use sunshine to unlock it again ??
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all I know the Bootloader can not re unlock when you flash stock firmware or update OTA. So you dont need to relock BL after do anything ! Keep Bootloader Unlocked will help you custome your phone easier with root and more !
A certain thread called "[LOLLIPOP WARNING]Those Who Unlocked Via Sunshine or Purchasing a Code from China" says the following:
There is an Enable OEM Unlock option that is appearing in the Developer Options of the N6 and MX14 running 5.1 and if it is not checked, you cannot unlock your bootloader. If you unlocked via Sunshine or purchased a code for your device from the Chinese code seller, we do not know what is going to happen wrt this Enable OEM Unlock option for your phone if you upgrade to 5.1.
Until we do, it is safest to not upgrade and stay unlocked until 5.1 drops and the situation becomes clearer.
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There hasn't been any update on the thread since the 5.1 release for the Moto X, so if I were you I would wait... Sunshine has also a support line, so you could also send a ticket and directly ask if they can unlock your bootloader. I'm sure they have seen this case!
you had an xt1058 right ? you updated to 5.1, did your bootloader get relocked ?
It didn't, but I had a Rogers xt1058 that was BL unlocked directly by Motorola and not by Sunshine...
According to Motorola's website, at&t's Moto X cannot be BL unlocked officially, so that's probably why we cannot know what will happen if you update to 5.1.

unlocking bootloader for rom update

Hi, I have an moto g5s+ original (locked bootloader), but I'd like to remove the opertator apps without root changing. Can I flash a new rom retail in order to do that? In other words, changing firmware by fastboot or RSD needs unlocked bootloader? Thanks.
kades said:
Hi, I have an moto g5s+ original (locked bootloader), but I'd like to remove the opertator apps without root changing. Can I flash a new rom retail in order to do that? In other words, changing firmware by fastboot or RSD needs unlocked bootloader? Thanks.
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Click to collapse
Most likely the bootloader will need to be unlocked, to flash different carrier firmware
kades said:
Hi, I have an moto g5s+ original (locked bootloader), but I'd like to remove the opertator apps without root changing. Can I flash a new rom retail in order to do that? In other words, changing firmware by fastboot or RSD needs unlocked bootloader? Thanks.
Click to expand...
Click to collapse
No
I debranded my phone in locked bootloader

Relock bootloader?

Has anyone relocked the bootloader? I have downloaded stock firmware and followed the usual relock commands that worked on other Moto devices I've owned, but I am having no success in relocking the Moto g9 play.

Android 6.0 or better for locked bootloader

I'm stuck in 5.1
bootloader can't unlock
couldn't find compatible rom for locked bootloader.
Can anyone help me to find rom for locked bootloader please?​

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