Develop Bugs

[Q] Install ROM with locked bootloader

I have unlocked my bootloader to root and install CWM. I have installed CM9 and now I want to give AOKP a go. Since installing CM9 I have relocked my bootloader, just for the sake of it. Can I install the AOKP via update.zip without needing to unlock the bootloader again, or do I necessarily have to have it unlocked?
There is a program in the market that lets you lock and unlock without even restarting the phone, so it's not about having to unlock it. It's just more of a proof of concept kind of question
Thanks
Aphis

IonAphis said:
I have unlocked my bootloader to root and install CWM. I have installed CM9 and now I want to give AOKP a go. Since installing CM9 I have relocked my bootloader, just for the sake of it. Can I install the AOKP via update.zip without needing to unlock the bootloader again, or do I necessarily have to have it unlocked?
There is a program in the market that lets you lock and unlock without even restarting the phone, so it's not about having to unlock it. It's just more of a proof of concept kind of question
Thanks
Aphis
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Dont think you need to relock it as long as you have recovery already.. that would be the only reason to unlock it in the first place as far as im concerned. You should be fine.

relock bootloader with customised rom or rooted OxygenOS?

Hi
I noticed OnePlus 3 does NOT allow user to have fully working phone when one re-lock bootloader with customised recovery or modified ROM. I would only assume there is security feature put in and checking the integrety of the ROM during boot. Did OxygenOS get digitally signed? Does this mean we don't have any method to root the OxygenOS and yet keep bootloader locked?
The reason I like to keep bootloader locked is becuase it's much more secure, otherwise, anyone can took the phone reflesh the recovery and have full access to my contents. Once they are done, they can simply swap it back without me notice anything.
I have done this with Nexus 5.
Any ideas for achieve below as end result?
* bootloader locked, running OxygenOS, and have SuperSU installed
* bootloader locked, running any ROM, and have phone rooted
Thanks

You could try to root your phone with KingRoot, which allows having your device rooted without a Custom Recovery or unlocked device.

Do we know what method is KingRoot using for this?

Can i lock the bootloader after installing a custom rom?

i was wondering if i unlocked the bootloader and installed a custom rom i`m not willing to change soon, can i lock the bootloader again while i have this rom?

iHookar said:
i was wondering if i unlocked the bootloader and installed a custom rom i`m not willing to change soon, can i lock the bootloader again while i have this rom?
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Certainly you can if you are prepared for a bricked device later. I mean, it is not advisable to lock the bootloader if you have a custom ROM since any issues arise later, you will not be able to solve them. In addition, even if you manage to unlock the bootloader again in such a scenario, you will lose all your data including files, photos, videos etc.

If you properly sign the firmware, you don't even have to unlock the bootloader, see https://forum.xda-developers.com/oneplus-3t/how-to/guide-custom-kernels-roms-recoveries-t3572525

root and unlock bootloadrr

Hi!
I buy this phone today. I am familiar with root and install twrp but on Samsung devices. This is my first xaomi phone.
Can someone help me to unlock this bootloader and install twrp and custom ROM.
Is it possible to do this without PC? I don't have PC i and I want to do that without PC?
What is the first thing that I need to do?

tze_vitamin said:
Hi!
I buy this phone today. I am familiar with root and install twrp but on Samsung devices. This is my first xaomi phone.
Can someone help me to unlock this bootloader and install twrp and custom ROM.
Is it possible to do this without PC? I don't have PC i and I want to do that without PC?
What is the first thing that I need to do?
Click to expand...
Click to collapse
You can't unlock it without PC neither to install TWRP. First you need to bind your Mi account to phone then to proceed with Xiaomi unlocking tool. Currently they give authorization to unlock after 360 hours following the 1 step.

Question Re-lock device

Hello all,,
i unlock my device and install twrp,, and flash miui eu rom, now i want re-lock my device how can i do it, because some apps not working in unlock (root) device
Regards

almuhajir said:
Hello all,,
i unlock my device and install twrp,, and flash miui eu rom, now i want re-lock my device how can i do it, because some apps not working in unlock (root) device
Regards
Click to expand...
Click to collapse
Firstly, you shouldn't re-lock your device while you are running something "custom" on it.
And in case you switched from Chinese to Global, no matter that it is a stock one, neither.
You should completely return to stock and re-lock device either through fastboot commands or using the option "Flash all and lock" through Mi Flash tool.

technically it is possible to relock the bl on some phones and some roms (graphene os for example)
the process is ... let's say complicated. and risky.
as subway said, no do not try to relock if you want to run a custom rom.

Thanx Dear,
i found the problem, its in Magisk, i disable it and every thing goes normal