if i lock my bootloader, can i unlock it again? - Moto G4 Questions & Answers

i used the code from motorolla to unlock it...but i'm curious, if i lock the bootloader would i be unable to unlock it again?
would i need to use the unlock code again? or would a simple "fastboot oem unlock" work?

I've wondered that question myself for awhile now. Maybe someone can jump in and help us. Also if I flash bootloader update does it need a new code.

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[Q] Need Confirmation Please

Around last week when I first got my carrier locked Xperia PLAY, I purchased a network unlock code which I was able to unlock it with. So, then I flashed it with the UK Generic .184 FTF file with FlashTool to get rid of all the junk that my carrier included with it and rooted it using the GingerBreak APK.
Now, my question is, since I've network unlocked my PLAY, completely debranded it and rooted it, would I be able to unlock my bootloader now? From what I've read, since my device was originally locked from my carrier, that it never had Fastboot installed on it, which is needed to unlock my bootloader. But I also read that being able to unlock the bootloader on my Xperia PLAY shouldn't even matter because it's already set to S=OFF. Could someone please enlighten me on this?
You can't unlock your bootloader with the current method, it depends on two things: can your phone connect with fastboot when in bootloader mode AND is your IMEI number registered with SE to get the required unlockcode.
No you can only unlock GSM phones ie sim fee none network locked ones, unlocking the sim carrier wont count sadly
svenk919 said:
You can't unlock your bootloader with the current method, it depends on two things: can your phone connect with fastboot when in bootloader mode AND is your IMEI number registered with SE to get the required unlockcode.
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Yes, I went to their How-To page on the SE Developer's site and was able to get an unlock code by providing my IMEI and other info. When I try to detect it with Fastboot and my PLAY in bootloader mode, Fastboot just hangs at <waiting for device>.
waz000000 said:
No you can only unlock GSM phones ie sim fee none network locked ones, unlocking the sim carrier wont count sadly
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Click to collapse
Cool, thanks for confirming that!
But does it even matter if I'm able to unlock my bootloader? Because I've read somewhere that the PLAY's are set to S=OFF.
From my understanding an unlocked bootloader is necessary for costum roms, if you're content with root and themes unlocking the bootloader won't be that important to you I guess.
I'm pretty content with being able to install custom themes with it only rooted. But I want to be able to overclock it, and that involves flashing a custom kernel to be able to do so, correct?
Flava0ne said:
I'm pretty content with being able to install custom themes with it only rooted. But I want to be able to overclock it, and that involves flashing a custom kernel to be able to do so, correct?
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Click to collapse
afraid so (as it stands atm) there probably will be a way to flash without an unlock at some point though.

[Q] Fastboot say's " failed, must be rooted" when I attempt recovery

When I try to acces recoveryPLAY or try to unlock the bootloader I get the "failed, phone must bee rooted" I just flashed everything to 2.3.3 before I was rooted and haad a unlocked bootloader, but relocked it to update OTA, now none of the fastboot stuff is working. Anyone have any ideas? I would really really appreciate any help.
You have to unlock the bootloader again. I had the same problem.
Sent from my R800x using XDA App
IfI could unlock the bootloader I would. The unlock code is not working. Its the same code I used over a month ago to unlock my bootloader before I relocked it to update.
Whether I am trying to unlock the bootloader or fastboot recoveryPLAY both come back with "failed, phone must be rooted".
Probably a silly question, but, do you have the unlock command line correct, and have you verified if fastboot is working properly? Try 'fastboot -i 0x0fce getvar version'. It should return a version number if fastboot is working properly.
Sent from my R800x using XDA App
Yes, I have checked everything 4 times and the fastboot getvar is showing the phone is connected. Even using flashtool to flash back to 2.3.2 then trying to use the fastboot commands gives the same results.
Is there a 2.3.2 .FTF files that has root embedded that I can try and flash and see if that works?
What does it say when you try to unlock the bootloader?
Sent from my R800x using XDA App
I have already listed what it says. "Failed, phone must be rooted".
This repsonse is for both commands to either unlock the bootloader or boot into recoveryPLAY.img
And yes my bootloader unlock code is correct when i type it in, and when I used it before the OTA to unlock my bootloader. So the code is the correct code.
That's very strange. If all your command lines are correct, and you are inputting the correct code, it should be working. I only got that message when trying to boot a recovery image without unlocking. Sorry, I don't know what to tell you now.
Sent from my R800x using XDA App
thats okay. I just really hate having no root access and a locked bootloader. I would at least like to have root so I can use TB. I appreciate your attempts to assist me. Thank you
Anyone have any ideas for a solution to this or why this is happening? Everyone else seems to be able to reroot and unlock the way they have always done, except for me nothing is working.....
Bootloader unlock request spits out this:
<bootloader> Unlock phone requested
FAILED <remote: oem unlock failed!>
finished. total tim: 0.003s
Is there a FTF file that has root embedded into it I can use with flashtool? Fastboot is not accepting my code lines for either recoveryPLAY or my attempts to unlock the bootloader.
bump.......
Just realized about 10 minutes ago the unlock code IWas using was for my old xperia play. I found the code that pertained to my current phone and it still gives me the same results.....damn
Can you try wontanserver to go back to 2.3.2?
never heard of it, is it free? Looks like its a website or something
wow.... I am so unintelligent sometimes. I have been fighting with getting this phones bootlaoder to unlock and then it came to me, I am not typing it in caps. So I did and BAM!!!!!! bootloader unlocked. Guess since the 2 months I last unlocked it my brain got soggy like a bowl of runny oatmeal
Ya its free and imho the easiest way to flash any stock firmware from every region. The wontanserver program has it all.
K, I will save that for later. Thank you.
IS your phone R8OOX? ask alejandrox -whatever his name is for you to unlock it
edit: glad you fixxed it
I finally got my bootloader unlocked last night. I was misinterpreting a "0" (zero) as a "O" as in Oh. Got my phone updated i 2.3.3 with root and bootloader unlocked. I would like to thank everyone for their help. Guess I should get me eyes checked.

Relock bootloader without Unlock code

The S8 (G950F) I own came with unlocked bootloader, is there a way to relock it with out the unlock code?
algnerd said:
The S8 (G950F) I own came with unlocked bootloader, is there a way to relock it with out the unlock code?
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Why would you want to relock it? But if you wish to do so, you'll need to firstly enable developer options, once done go to settings then developer options, then you will see oem unlock, if that switch is to the right then boot loader is unlocked, to relock bootloader just press and move so that switch is to th3 left
sofir786 said:
Why would you want to relock it? But if you wish to do so, you'll need to firstly enable developer options, once done go to settings then developer options, then you will see oem unlock, if that switch is to the right then boot loader is unlocked, to relock bootloader just press and move so that switch is to th3 left
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Because, google play says that my device is uncertified and I can't install Netflix
algnerd said:
The S8 (G950F) I own came with unlocked bootloader, is there a way to relock it with out the unlock code?
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Click to collapse
You're mixing up two different things, oem unlock that unlocks the bootloader is disabled on the g950f, you have to enabled it yourself. The unlock code is for carrier locks, totally different thing. You might as well root it now and use magisk to hide root from netflix.
algnerd said:
Because, google play says that my device is uncertified and I can't install Netflix
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That happens when you have root, nothing to with unlocked bootloader
sofir786 said:
That happens when you have root, nothing to with unlocked bootloader
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That's the thing, I wasn't rooted but I had unlocked bootloader and it wasn't working.
Now that I've rooted it using Magisk, the device is "certified"

Relock bootloader

Hi, I need to send my p smart to huawei service due to battery problems.
My phone is rooted with bl unlocked and, it seems, my warranty is void.
If I remove root and relock my bl, my phone will be accepted regardless of the rooting?
Unfortunately no, because the bootloader status is RElock, not lock. Lock bootloader with DC Unlocker, because the program lock bootloader and change status to lock with 4 euro
Ok thanks, that actually seemed the only way.
If I use dc unlock to lock the bl, do you know if it makes my unlock code unusable for a future unlock and root? I mean, if I want to root my phone again, can I use the standard procedure (using my unlock code, twrp and so on) or do I have to use necessarily DC unlock?
Zioward said:
Ok thanks, that actually seemed the only way.
If I use dc unlock to lock the bl, do you know if it makes my unlock code unusable for a future unlock and root? I mean, if I want to root my phone again, can I use the standard procedure (using my unlock code, twrp and so on) or do I have to use necessarily DC unlock?
Click to expand...
Click to collapse
If you want unlock the bootloader again you can if you have a unlock code
Hey, did you Lock the bootloader again? If yes, could you give me a quick guide on how to do it? I unlocked mine some time ago and cant quite figure out how to lock it again now!
if have to dig this up. i can't relock my bootloader for some reason. is there an up to date method? flashed official through erovery. bootlocker and frp are unlocked atm.

need help about unlock bootloader key

Hi there, I need to unlock bootloader, but I need a key. I try to find somewhere in Huawei's website but can't find it who to ask.
I need unlock bootloader to root my phone. I need it for to use root to searching for lose picture.
How can got this key?
Lolerhy said:
Hi there, I need to unlock bootloader, but I need a key. I try to find somewhere in Huawei's website but can't find it who to ask.
I need unlock bootloader to root my phone. I need it for to use root to searching for lose picture.
How can got this key?
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Click to collapse
Hello,
there's no longer an official way to get the bootloader unlock code, You can get the code with dc-unlocker.com or hcu-client.com (paid services - 4euros).
P.S.: I'm afraid root won't help you. Unlocking bootloader will erase all your data , since Android 7 it is impossible to bypass this process.
this make me sad.

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