Hi, I have the T-Mobile H830 Variant. I'm try to relock my bootloader because I have to take it back soon. I've already fully Unrooted my device but my bootloader is still unlock. I was wondering did anyone know of any way possible to relock the bootloader. It would be much appreciated if someone could point me in the right direction. Thanks in advance!
I'm wondering the samething. Might have to do it the same way you unlocked it. I used fastboot to unlock the bootloader. How did you unroot it.
Boot to fastboot mode then thru an adb shell, type the following: fastboot oem lock
Note this will erase your entire device.
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I have use [XOOM][Wingray][STOCK]An easy way to return your XOOM to its *original* state but, at least step, i had push down bottom.. so i dont know if my wingray has bootloader locked or unlocked... can anybody help me??
thanks!
edudu1414 said:
I have use [XOOM][Wingray][STOCK]An easy way to return your XOOM to its *original* state but, at least step, i had push down bottom.. so i dont know if my wingray has bootloader locked or unlocked... can anybody help me??
thanks!
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LOCKING BOOT LOADER
You need ADB so follow these steps.
To lock your boot loader you definitely need to have a proper connection between your device and computer.
To re lock your boot loader you need to:
1. Turn off your device
2. Hold your volume down button and press the power button. (KEEP HOLDING YOUR VOLUME DOWN BUTTON) You will see a white screen with fastboot written on it.
3. Navigate with your volume up or down to fastboot and press the power button to select it.
4. Connect your device with your computer,
5. Open the terminal in your computer and type in 'adb devices',
6. Type in 'fastboot oem lock' without quotes and your device is locked again, you will see relocked.
but i don't know the status of my bootloader.. if i have bootloader unlocked, i can re-use the zip to back to stock, that it includes relock bootloader
and if i have bootloader locked, i will unlock it
how i can know if it is unlocked or locked? thanks!
edudu1414 said:
but i don't know the status of my bootloader.. if i have bootloader unlocked, i can re-use the zip to back to stock, that it includes relock bootloader
and if i have bootloader locked, i will unlock it
how i can know if it is unlocked or locked? thanks!
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Click to collapse
You could try flashing a custom recovery to it. If it works, then your bootloader is unlocked.
edudu1414 said:
but i don't know the status of my bootloader.. if i have bootloader unlocked, i can re-use the zip to back to stock, that it includes relock bootloader
and if i have bootloader locked, i will unlock it
how i can know if it is unlocked or locked? thanks!
Click to expand...
Click to collapse
Only try to flash a custom recovery. If it works, you have unlocked bootloader.
Remember that locking back your bootloader can brick your tablet, and that locked bootloader is not needed for the updates.
I unlocked twice my unlocked bootloader and notting happened, it said "it's already unlocked" or something similar, but do at your own risk.
i dont flash a recovery yet but.. i can enter to android system recovery <3e>
does this mean that i have bootloader unlocked?
thanks!
EDIT. i flash twp2 and it works.. so i hadn't have my bootloader locked..
sure, i'm gonna flash ICS.. no more JB now
Okay so, first things first:
I can boot into both Recovery AND Fastboot
ADB Sideload does NOT work in my TWRP
Tampering bit is true and bootloader unlocked is false
My problem now is;
I need to unlock my bootloader because right now, my phone has no OS. I can't unlock it though because neither fastboot oem unlock works nor through the OPO Toolbox/Toolkit.
I can't flash anything to it right now and I need to find a way to unlock my bootloader, whenever I try to unlock it, it reboots to TWRP.
Please help. <3
adb push yourrom.zip /sdcard
Then just pick the ROM you just copied onto your phone storage using the above command in TWRP and you should be fine.
If that doesn't do the job then you can always use the brick recovery download tool.
Karthaan said:
Okay so, first things first:
I can boot into both Recovery AND Fastboot
ADB Sideload does NOT work in my TWRP
Tampering bit is true and bootloader unlocked is false
My problem now is;
I need to unlock my bootloader because right now, my phone has no OS. I can't unlock it though because neither fastboot oem unlock works nor through the OPO Toolbox/Toolkit.
I can't flash anything to it right now and I need to find a way to unlock my bootloader, whenever I try to unlock it, it reboots to TWRP.
Please help. <3
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Click to collapse
Did you try flashing the OPO factory image and then start from scratch?
Hoe do I unlock after I've already relocked the bootloader, is it just oem unlock bootloader with a command prompt? Also, if I do this, will my data be erased? And if so, can't I make a backup so I don't loose it?
Im seeing people are rooted and stuff but i dont see anywhere how to unlock the bootloader and root the phone? I have the GM1917 version right from oneplus. Thx
I have the one from TMobile. I got it unlocked but need to get this stupid unlock.bin file from them and it takes weeks I'm told. If your phone isn't TMobile... You should be able to flash TWRP to the b slot and root with magisk. It's what I was going to do until it told me I cannot just OEM unlock from bootloader menu. Boooo
Turn on oem unlock from developer options then put phone in fastboot mode and connect to PC. Fastboot oem unlock is the command you'll run.
This is the case, I have a problem with the Flash ROM, now the phone can go into fastboot, but there is no Recovery, and the phone's bootloader is locked.
You're going to have to give a bit more detail if you want help from this community.
For example:
What phone variant do you have?
What did you have on your phone when it was running properly? i.e stock android, locked bootloader, rooted etc.
What 'Flash ROM" do you mean a factory image or custom ROM?
What had been trying to do to your phone i.e upgrade from Android 9 to 10 by sideloading an image?
Had you previously unlocked the bootloader?
I'm not saying that I will ultimately be able to resolve your issues but the more info you give the more likely someone here will.
Now,my pixel 3 can not work,the bootload is locked.when I select recovery by fastboot,The phone noticed me can not find vaild operating system,the device will not start.
I used to unlock the bootloader, it is because I locked the bootloader that this situation has occurred.
Can you unlock the bootloader again in fastboot?
wangdaning said:
Can you unlock the bootloader again in fastboot?
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When I lock my devices bootload,then this devices auto wipe data, so I think oem unlock is not open.And I can not unlock bootload.