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New in MI4C

Hello everyone.
I live in Brazil and I bought at the Aliexpress MI4C Xiaomi. I haven't received it yet, but I've already started researching ways to use it with another ROM than the original. The seller sends the device with google apps and multilanguage option. So, he makes some modification in the ROM, and says to not update the ROM officially on Xiaomi servers.
I see a lot of complaints about the Chinese bloatwares in ROM and so I wanted to install one that was good, but nothing with applications in Chinese or unnecessary ones.
My question is: in this case the bootloader is already unlocked?
In the meantime, I sent my request for unlocking bootloader to Xiaomi and received the SMS containing a link. As soon as I get the cellphone I intend to do the procedure. There is a risk of bricking the phone?
I’ll do appreciate good links with how-to and good ROM to daily use.
Thank you.

The seller shipping a modified ROM and telling you not to update the official would suggest your bootloader will not be locked. For now only flashing the latest official China dev builds will lock your bootloader.
Getting pre-approved for unlocking couldn't hurt though I guess.. just in case. You might need to have a working Xiaomi framework in your ROM to register your phone once though. If your ROM does not have the xiaomi services, I would suggest either Xiaomi.eu or sMiUI as a ROM, both are pretty much stock MIUI with some chinese bloat trimmed.
But most likely you will not need to unlock your bootloader anyway. You will need to check your bootloader through adb anyway before doing the steps to flashing a new ROM. You will best be flashing your recovery through adb, the instructions can be found through most ROM pages or simply searching TWRP Mi 4C. The command to check if it's unlocked is
Code:
fastboot oem device-info
A very extensive directory can be found in the INDEX thread, first in this forum.

Logic_ said:
The seller shipping a modified ROM and telling you not to update the official would suggest your bootloader will not be locked. For now only flashing the latest official China dev builds will lock your bootloader.
Getting pre-approved for unlocking couldn't hurt though I guess.. just in case. You might need to have a working Xiaomi framework in your ROM to register your phone once though. If your ROM does not have the xiaomi services, I would suggest either Xiaomi.eu or sMiUI as a ROM, both are pretty much stock MIUI with some chinese bloat trimmed.
But most likely you will not need to unlock your bootloader anyway. You will need to check your bootloader through adb anyway before doing the steps to flashing a new ROM. You will best be flashing your recovery through adb, the instructions can be found through most ROM pages or simply searching TWRP Mi 4C. The command to check if it's unlocked is
Code:
fastboot oem device-info
A very extensive directory can be found in the INDEX thread, first in this forum.
Click to expand...
Click to collapse
you cannot check the bootloader locked or not by that way. My phone when checking this, gets the input "bootloader unlocked: false" but I can flash other recovery freely.
in his case, he is using a modified rom, it means his bootloader is not yet unlocked. Right now, if he wants to come back to chinese rom, he should use Mi flash to flash his phone. If he wants other rom like CM13, he should download the latest TWRP and the rom, put the rom into his phone storage. Then try to go to fastboot to flash the recovery, then go to the recovery and flash the rom.

tuanhung303 said:
you cannot check the bootloader locked or not by that way. My phone when checking this, gets the input "bootloader unlocked: false" but I can flash other recovery freely.
in his case, he is using a modified rom, it means his bootloader is not yet unlocked. Right now, if he wants to come back to chinese rom, he should use Mi flash to flash his phone. If he wants other rom like CM13, he should download the latest TWRP and the rom, put the rom into his phone storage. Then try to go to fastboot to flash the recovery, then go to the recovery and flash the rom.
Click to expand...
Click to collapse
Ah, that might be incorrectly reporting indeed. In any case when trying to flash recovery, if you're locked it'll simply fail and won't be harmful.
But why would you think his bootloader is not unlocked? If he's using a modified rom, it was probably flashed through fastboot or a custom recovery, both require the bootloader to be unlocked.
But even if he was not on a modified rom, stock Mi 4c have always come bootloader unlocked. Someone would have to have gone out of their way to lock the bootloader and I doubt any reseller would do that, they would risk a lot of refunds from angry customers.
I strongly advise against using miflash to flash any official rom unless you have no choice, since then there's a chance you WILL lock your bootloader. For now only dev builds are locking it, but the next stable release might very well too.
The first step should be to flash TWRP
The second step to stay away from Official China build
The third step to keep away from Official China build
The fourth st...

^ sorry my bad.... I was not focused. Actually I mean his bootloader is unlocked .
The safest way is flashing via computer, using mi flash or flash twrp image. You are right

1. Ur phone not lock bootloader
2. U can flash custom recovery...(TWRP)
3. "MUST" Stay away from official MIUI ROM
4. Flash whatever u want...sMiui, CM13, etc,etc
5. Remember Point No.3
***Btw, download official Fastboot ROM and keep it to ur drive, for just in case if u want to sell it again

Hello. Thank you all. I just received my phone. Great, btw. I'll read again and again all instructions and try. Thanks again!

Cadimarco said:
Hello. Thank you all. I just received my phone. Great, btw. I'll read again and again all instructions and try. Thanks again!
Click to expand...
Click to collapse
Even as a last resort to getting your phone working if you did something wrong, please don't install the newer official roms, it's the mistake I did this weekend now I have a locked phone with a rom that has force-closes everywhere and absolutely no way back.

vletrmx21 said:
Even as a last resort to getting your phone working if you did something wrong, please don't install the newer official roms, it's the mistake I did this weekend now I have a locked phone with a rom that has force-closes everywhere and absolutely no way back.
Click to expand...
Click to collapse
yes, or the safer way is always flash the latest chinese rom via miflash. twrp does not like Chinese roms

tuanhung303 said:
yes, or the safer way is always flash the latest chinese rom via miflash. twrp does not like Chinese roms
Click to expand...
Click to collapse
No
No No
No No No
No No
No
No.
Don't flash the latest chinese rom.
No.
The only scenario where you would want to use miflash to flash a chinese rom would be as a last resort to flash the fastboot version of V7.1.6.0.LXKCNCK to restore your phone. Any later version will lock your bootloader.
If you don't care about locking your bootloader and the arduous process of unlocking it, you're easier off just taking all the latest updates OTA via the updater.

Hello everyone. Thanks for the help. In fact my bootloader was unlocked. I flashed twrp 3.0.0.3 and flashed the CM13 teamluminial, Android 6.0.1. Excellent. Thank you.

Hi!
Same scenario here..
I will receive Mi 4c with the Bootloader Unlocked, Rooted and the Multilanguage ROM.
But I have already received from Xiaomi after my request also the number for the official unlock procedure but now I'm a bit confused..
Do I have to unlock the bootloader once and for good with the official way?
Because I've read that the unofficial way isn't so secure in long term.
Do I have to install from the Updater the latest Cina Dev ROM and after that to proceed with the official unlock? Or it is better to use the Fastboot ROM?
Please could some one tell me in any case what to do ?
Thanks !

If you don't flash something that will lock your BL, no need to Unlock.

Ok first I must check the status of the bootloader to be sure that it is unlocked (via cmd control or cpu-z)
And after that can I choose an unofficial weekly miui.eu international ROM and install it?
Can I download and also update every week via Updater this ROM without issues?
At the moment my problem with flashing is that I don't have my pc (the one I have now runs win xp) and I don't want to stuck with the eventually malware or fully spammed modified rom of the reseller..
Which options do I have?

How does TWRP nandroid work with no sd card?

stillsober said:
How does TWRP nandroid work with no sd card?
Click to expand...
Click to collapse
TWRP works perfectly. The backup is simply stored in your internal storage。

which honor 6x firmware i need to use?

I need some help with my Honor 6x. I'm trying to get a solution or procedure to reset my phone. the firm where says generic _a15 when connecting it to the computer. The manager won't update it either just keeps giving me a fail error. I have tried to root it but I think since the software is wrong it's not taking the root. can anyone help or point me in the direction o what I need to do. If this has already been answered My apologies and can I get the link. thank you.

Do you have an unlocked bootloader? What's your Android version?

Mannan Qamar said:
Do you have an unlocked bootloader? What's your Android version?
Click to expand...
Click to collapse
yes, the boot loader is unlocked. I believe it was rooted before. android 7.0

slimjimz81 said:
yes, the boot loader is unlocked. I believe it was rooted before. android 7.0
Click to expand...
Click to collapse
Flash the two small update zips via TWRP
Not the update.zip which is 1+ GB in size but the two small zips via TWRP

I been trying to get twrp to take but it keeps giving me the erecovery.

slimjimz81 said:
I been trying to get twrp to take but it keeps giving me the erecovery.
Click to expand...
Click to collapse
What command you use. You have Android 7 or 8 right now

Android 7.0 I have been using that app. That boots it into recovery then tries to flash it. I tried to get the adb cmd to work but it doesn't find the file. I know this all sounds like gibberish but that's why I'm lost.

How to unbrick you NOKIA 6 TA-1021 and 1033.

This works only if you have working Fastboot AKA Download mode and you have unlocked your bootloader .
First download this --> https://github.com/StollD/NOST/releases/download/v0.6/NOST-v0.6.exe
Its a latest one and the working one. If you have LOST LA installed just unistall it. That doesnt work at all.
Then you need to download this FIRMWARE --> https://drive.google.com/uc?id=1smpap8mB0RZNk1j_HD0IJUX5LjFzKC4a&export=download
Then istall NOST and extract ZIP file. Launch NOST and select next. Make sure you phone is connect to your pc and it is fastboot mode "download mode" and find your phone. If it does then just click next. Now select the extracted nb0 file and go next.
If i remember right there is normal and rescue install method and some other too. I use the normal method. Then just go and start the install. Every first time it do something to my phone but give me the error and did not pass the install. But when i try it again it works just fine and finish the install. Then your phone should just do a reboot and voila, you have a stock nokia firmware installed succesfull.

After i do that, and my Nokia 6 1021 start, its download first PIE version and installed. After that i can do OTA install the latest PIE version. And i still can have my fastboot a live. So if you have like i have unlocked bootloader you can flash the latest TWRP and latest stable MAGISK 19. Then you have a working ROOT your phone
I just use "fastboot flash recovery recovery.img". Then "FASTBOOT REBOOT" and straight push volume up and power button together so long that your phone go twrp. If you fail its install stock recovery back. You can try again. I Try couple of time and i get it
Now my phone have latest PIE and latest MAGISK.

You need an unlocked bootloader for that.

Yakia said:
You need an unlocked bootloader for that.
Click to expand...
Click to collapse
For what?? Unbrick you phone, NO!
But if you want magisk and twrp yes.

Yes you do need an unlocked bootloader for unbricking the phone, i've tried that and it isn't working without an unlocked bootloader.

DoggyStar said:
For what?? Unbrick you phone, NO!
But if you want magisk and twrp yes.
Click to expand...
Click to collapse
is your phone has unlocked bootloader, this cannot done if you dont have unlocked bootloader.
you must flash december 2017 update first in my experience.

frnsl3 said:
is your phone has unlocked bootloader, this cannot done if you dont have unlocked bootloader.
you must flash december 2017 update first in my experience.
Click to expand...
Click to collapse
You don't need to have unlocked bootloader to flash December 2017 update. Just boot on the recovery and update that on your SD card.
Still you don't need unlocked bootloader!

DoggyStar said:
You don't need to have unlocked bootloader to flash December 2017 update. Just boot on the recovery and update that on your SD card.
Still you don't need unlocked bootloader!
Click to expand...
Click to collapse
If everything goes well yes but if it doesn't boot (as I had when I had unlock the bootloader), it won't be able to use NOST because you need an unlocked bootloader to use it and flash the nb0

arl0ng said:
If everything goes well yes but if it doesn't boot (as I had when I had unlock the bootloader), it won't be able to use NOST because you need an unlocked bootloader to use it and flash the nb0
Click to expand...
Click to collapse
Why you need to have unlocked bootloader to use nost?
Nost only need working fastboot.

DoggyStar said:
Why you need to have unlocked bootloader to use nost?
Nost only need working fastboot.
Click to expand...
Click to collapse
NOST refuses to flash your phone if your bootloader isn't unlocked critically. The old OST would just try to flash but never make any progress which confuses inexperienced users.
Click to expand...
Click to collapse
https://forum.xda-developers.com/no...t-improved-version-ost-la-6-0-4-v0-4-t3875574

arl0ng said:
https://forum.xda-developers.com/no...t-improved-version-ost-la-6-0-4-v0-4-t3875574
Click to expand...
Click to collapse
This is different version what i use. I use version 0.6. Not that LA version.

arl0ng said:
https://forum.xda-developers.com/no...t-improved-version-ost-la-6-0-4-v0-4-t3875574
Click to expand...
Click to collapse
And yes, you are right. Nost see if i have critically unlocked phone. So that doesn't work without unlocked bootloader.
My bad

DoggyStar said:
And yes, you are right. Nost see if i have critically unlocked phone. So that doesn't work without unlocked bootloader.
My bad
Click to expand...
Click to collapse
Yes that's what I was trying to tell you, I think you can edit your thread.

Yakia said:
Yes that's what I was trying to tell you, I think you can edit your thread.
Click to expand...
Click to collapse
Thanks man, I edited.

My phone is hard bricked.
Recently I was continuously charging my phone with power bank. One night I forgot to put my phone on charge and it got discharged fully. I tried starting it in morning but it got stucked at Nokia logo, I tried getting it into recovery mode to reset it but was not able to because i haven't connected it to power before. Afterwards I connected it to my laptop whose charger was having earthing problem and giving shocks. In between trying to put my phone into recovery mode along with connected to laptop, the current passed through my phone for 2 times. And that was the last moment i had seen my phone's screen lighted, and then full blackout.
I have taken it to service center first, the person tried installing the software on phone again and confirmed phone is being detected by PC but unable to install software. They had given only one option to change the motherboard to fix it.
Then i tried getting it repaired at local shops, where a person told me internal memory IC has been shorted. Another person at different shop tried repairing it and was also not able to fix and said lastly that motherboard is dead.
I think maybe Hardware kernel got disturbed, so is there any method to install the hardware kernel again?

have you Nokia 6 TA-1033 SS firmware rom download link?

Links are dead

Not able to lock my bootloader again in my Redmi Note 7 Pro

I sucessfully installed Orange Fox Recovery in my Redmi Note 7 Pro (violet). But then after that I wanted to go back to the stock rom so I flashed it with Mi Flash. The Rom which I flashed was Global Stable Fastboot Rom (Version 11.0.8.0) but after flashing an error appeared that the system has been destroyed. Then I tried to unlock my bootloader, that took place successfully and my phone booted but the bootloader was still unlocked, I want to lock my bootloader. But whenever I do this the System Gets Destroyed.

You probably have the Chinese version and are flashing the Indian rom. Try to flash the Chinese rom and lock the bootloader and see if it works.

Harsh Ahuja 2509 said:
I sucessfully installed Orange Fox Recovery in my Redmi Note 7 Pro (violet). But then after that I wanted to go back to the stock rom so I flashed it with Mi Flash. The Rom which I flashed was Global Stable Fastboot Rom (Version 11.0.8.0) but after flashing an error appeared that the system has been destroyed. Then I tried to unlock my bootloader, that took place successfully and my phone booted but the bootloader was still unlocked, I want to lock my bootloader. But whenever I do this the System Gets Destroyed.
Click to expand...
Click to collapse
U cant relock ur bootloader bruh ri8 now.

sourav24071999 said:
U cant relock ur bootloader bruh ri8 now.
Click to expand...
Click to collapse
When it can be relock again?

sourav24071999 said:
U cant relock ur bootloader bruh ri8 now.
Click to expand...
Click to collapse
Then when can I relock my bootloader again? Because I want to lock my bootloader

dark3578 said:
You probably have the Chinese version and are flashing the Indian rom. Try to flash the Chinese rom and lock the bootloader and see if it works.
Click to expand...
Click to collapse
No, I never had the China Version it is the Indian Version. Can u send me the link of the Chinese Rom

Harsh Ahuja 2509 said:
Then when can I relock my bootloader again? Because I want to lock my bootloader
Click to expand...
Click to collapse
Let's see.. no info yet

I am also having the same issue. I have tried multiple methods. I flashed Chinese rom, and then tried relocking the bootloader. It did not work.
I also tried flashing MIUI 10, and after flashing the fastboot rom of MIUI, I tried relocking bootloader. It did not work as well.
I want to relock my bootloader.
After unlocking bootloader I am facing just one issue, that is, my internet goes off (volte signal + internet) while receiving an incoming call. While it does not goes off and internet works fine when making outgoing calls. Are you also facing this issue? I am using Airtel.
Also, can someone please help us out?

I have did same it will work for me with unlocked bootloader and got a little issue with accessibility player in youtube
Not a big deal ?

need help and information please

hello everyone i want to ask if i can relock the bootloader after changing my poco x3 nfc rom from turkish to global rom
unlock bootloader then i flash the global rom
can i now type in faceboot fastboot oem lock
or it will damage my phone

AmirHRC said:
hello everyone i want to ask if i can relock the bootloader after changing my poco x3 nfc rom from turkish to global rom
unlock bootloader then i flash the global rom
can i now type in faceboot fastboot oem lock
or it will damage my phone
Click to expand...
Click to collapse
I have already answered this question in this thread. Read it carefully and be sure to use the Turkish MIUI variant. Basically your original MIUI version and variant to avoid a possible hard-brick.

Slim K said:
I have already answered this question in this thread. Read it carefully and be sure to use the Turkish MIUI variant. Basically your original MIUI version and variant to avoid a possible hard-brick.
Click to expand...
Click to collapse
you didn't understand me well
i want to change my turkish rom miui12.0.5
to global rom miui 12.0.7
and if i do that can i relock the bootloader

AmirHRC said:
you didn't understand me well
i want to change my turkish rom miui12.0.5
to global rom miui 12.0.7
and if i do that can i relock the bootloader
Click to expand...
Click to collapse
Probably not. I don't know anyone who tried that and succeeded. The thing is, in an unlocked state, the Bootloader (HLOS to be exact) will ignore all errors that are related to custom firmware. Once locked again, you run the risk of a fatal error and will be transferred to EDL mode, which you can't get out from without a Xiaomi verified account (essentially hardbricking your device).
Tell you what, try doing this the opposite way. Lock the bootloader with the turkish 12.0.5.0 fastboot MIUI first, then try to flash the global version 12.0.7.0 through fastboot or recovery and see what happens. That way you don't risk a hardbrick (avoiding repair shop costs), you can always unlock again anyways.

Slim K said:
Probably not. I don't know anyone who tried that and succeeded. The thing is, in an unlocked state, the Bootloader (HLOS to be exact) will ignore all errors that are related to custom firmware. Once locked again, you run the risk of a fatal error and will be transferred to EDL mode, which you can't get out from without a Xiaomi verified account (essentially hardbricking your device).
Tell you what, try doing this the opposite way. Lock the bootloader with the turkish 12.0.5.0 fastboot MIUI first, then try to flash the global version 12.0.7.0 through fastboot or recovery and see what happens. That way you don't risk a hardbrick (avoiding repair shop costs), you can always unlock again anyways.
Click to expand...
Click to collapse
my phone is new and is already on turkish miui 12.0.5 with locked bootloader
i want to unlock bootloader and flash the global rom than relock it
it will work or no

AmirHRC said:
my phone is new and is already on turkish miui 12.0.5 with locked bootloader
i want to unlock bootloader and flash the global rom than relock it
it will work or no
Click to expand...
Click to collapse
As i've replied before i personally don't know and have not known a case where it succeeded. Why are you afraid of trying? Most will not help you with something if you don't try it yourself first, try it with your bootloader locked as is and if it doesn't work forget about unlocking and locking again.

Slim K said:
As i've replied before i personally don't know and have not known a case where it succeeded. Why are you afraid of trying? Most will not help you with something if you don't try it yourself first, try it with your bootloader locked as is and if it doesn't work forget about unlocking and locking again.
Click to expand...
Click to collapse
I will try yes but you cant use any flash method without unlocking bootloader it's known

AmirHRC said:
I will try yes but you cant use any flash method without unlocking bootloader it's known
Click to expand...
Click to collapse
I don't know if this will work or not. Try going to updater app and pressing download latest release. Then stop it and open internal storage. There should be a folder called downloaded_rom or something similar. Try placing the global rom recovery version there, delete the one that is there and see what happens. Maybe you can toggle update now or flash through MIUI recovery.
If does not work, then i can't help you further. Maybe others who have tried it can.