Develop Bugs

[Q] Can I root without unlock the bootloader or to locked it again?

Hello guys, sorry because may be this is the 50th time someone ask this question but the situation change every day. Yesterday I won from lottery and decide to go from G3 to G4. My model is European H815, I want to ask you can I root G4, change the recovery and e.t.c. without unlocking the bootloader? And also if I unlocked it is their any way to locked it again or to use my warranty? Thank you!!

well you can only root using low effort root(google it or find it here ) But to change recovery you have to unlock bootloader
No there is no way confirmed to relock your bootloader
GOOD LUCK

Thank you! If I root by this way and download Flashify and try to change recover what will happen ? Thank you!

without bootloader unlocked nothing will chnage ( recovery wont be installed ) and when you reboot your phone it will get u error (authentication error #9) as i remember and you will have to flash new firmware using lg flash tool 2014 so i dont recommend you do so
if u wanna change recovery unlock ur bootloader
you are welcome anytime

I did not get it, I hope you can light me up:
1. Doing root using low effort root means rooting without unlocking bootloader? (because I flew over the thread and did not read anything about it)
2. If I do unlock Marshmallow's bootloader, what happens when I downgrade to Lollipop via flashing proper KDZ? (I would guess that the unlocked bootlader will be overwritten!? So flashing Marshmallow again would end up in a locked bootloader, doesn't it?)
thanks

You can root lollipop without unlocking bootloader but with marshmalow you can't, you have to unlock the bootloader.
You need an unlocked bootloader for custom recovery.
Bootloader unlocking is a one way operation , you can't go back.

China to custom rom

Hello, my question is nearly same the last one from arifmiui. I'm thinking about buying this phone, i read how too unlock bootloader, flash twrp and install custom. My question is, no problem for doing this with china firmware ? Thx

Same thought
bretzelpopo said:
Hello, my question is nearly same the last one from arifmiui. I'm thinking about buying this phone, i read how too unlock bootloader, flash twrp and install custom. My question is, no problem for doing this with china firmware ? Thx
Click to expand...
Click to collapse
I'm thinking on doing the same, if someone knows please reply. Dunno if it'll work because the china version uses different radio bands.

some questions.

hi and hello all. its been a while.
just picked up a unlocked 6.1 ta1045 .
first question is its fully carrier unlocked and updated to 9. can i bootloader unlock? The paid way still?
also if unlocked is it reversible? like can i still flash stock firmware and update?
is firmware even available?
what pc apps do you use?
anyone.......................................anyone bueller?

Question Carrier ROM not updating since miui 12.5.5. Is there anything I can do to fix this?

Hi, my carrier purchased 'Lisa' came with its ROM showing as version RKOEUBY.
My carrier isn't keeping up with updates so was wondering if I can just flash the ROM RKOEUXM without unlocking the bootloader?
I have my banking apps etc on this phone so am reluctant to unlock the bootloader unless absolutely necessary.
If anyone else has found an easy way to solve this would be grateful for your feedback.
Many thanks

rockyrobin said:
Hi, my carrier purchased 'Lisa' came with its ROM showing as version RKOEUBY.
My carrier isn't keeping up with updates so was wondering if I can just flash the ROM RKOEUXM without unlocking the bootloader?
I have my banking apps etc on this phone so am reluctant to unlock the bootloader unless absolutely necessary.
If anyone else has found an easy way to solve this would be grateful for your feedback.
Many thanks
Click to expand...
Click to collapse
Hi !
The best way is to download the zip of your European ROM from the Xiaomi site and try to install it from the update utility in your phone's settings. If that doesn't work, you'll have to unlock your bootloader, install the ROM you want with the flash utility, and choose the relock option before the install starts. Then you will be on an official Xiaomi ROM, with your bootloader locked and you will have updates from Xiaomi and no longer from your operator.
Bill

Hi,
I confirm that manually flashing the European ROM does not work (in my case at least), so I am stuck on MIUI 12.5.6 with RKOEUSF ROM.
If anyone finds a way to upgrade to the official version without unlocking the bootloader, and therefore not breaking the warranty, I would be grateful if you could share it.
Thanks

Hi !
From the moment you want to install a new ROM, you have no choice but to unlock your bootloader. You can then reblock it. Afterwards, I don't know if the warranty is impacted because you go through the official unlocking from Xiaomi.
Bill

Thanks Bill,
I've just tried flashing the zip of my ROM and the phone just quits the update after a long pause, saying that it cannot verify update.
Guess I'll have to unlock the bootloader. There's plenty of info about how to do this, but I've noticed a number of people complaining about the flash process.
When they apply the update, at the end they get an error message. The only way they get round this is with an edit of the settings of miflash.
Is this something I need to worry about?

Just been reading about these errors and it appears that they are caused by the path to the ROM file having too many characters.
Placing the ROM file in your C: folder solves this.

I've bought a Redmi Note 8 Pro and the devices is locked by Xiaomi

Hello there, I've bought this model.
There was a custom ROM flashed on it when I get it.
I've flashed it back by the Stock Firmware.
Then I saw that the device is locked by Xiaomi.
What can I do?
The best option would be to unlock it with the Stock Firmware on it, so I would have any other Option,.
If this isn't possible I would like to know how I can flash a custom ROM on it.
The bootloader is also locked, so please help me.
Bye, JonnyBoy84

JonnyBoy1984 said:
Hello there, I've bought this model.
There was a custom ROM flashed on it when I get it.
I've flashed it back by the Stock Firmware.
Then I saw that the device is locked by Xiaomi.
What can I do?
The best option would be to unlock it with the Stock Firmware on it, so I would have any other Option,.
If this isn't possible I would like to know how I can flash a custom ROM on it.
The bootloader is also locked, so please help me.
Bye, JonnyBoy84
Click to expand...
Click to collapse
return it and ask for a refund you has been scammed

JonnyBoy1984 said:
Hello there, I've bought this model.
There was a custom ROM flashed on it when I get it.
I've flashed it back by the Stock Firmware.
Then I saw that the device is locked by Xiaomi.
What can I do?
The best option would be to unlock it with the Stock Firmware on it, so I would have any other Option,.
If this isn't possible I would like to know how I can flash a custom ROM on it.
The bootloader is also locked, so please help me.
Bye, JonnyBoy84
Click to expand...
Click to collapse
Ask seller for unlock bootloader again (Official way) and remove his account from phone. (But I don't think he had, maybe he got the phone by unofficial way also)
Or you can use free unofficial tool to unlock it (Unofficial way, easy to find on YouTube).
Then choose one custom rom from forum.
Follow guide and enjoy the rom