Question Unlock bootloader security concerns - Redmi Note 10 Pro

Hello to everyone,
I wanted to unlock the bootloader of my device so I can modify it and I tried to follow the steps given by Xiaomi.
1] enable OEM unlock in developer settings,
2] connected my device to PC
3] signed in xiaomi unlocking tool
then a warning about security changes appeared before finalise the unlocking stating that i will lose fingerprint unlocking service of my phone.
The question is if someday I decide to return my phone to full stock state will fingerprint and the other security services return as functioning?
Thank you in advance.

Yeah you'll be fine. You will have to downalod rom image form xiaomi website, downalod xiaomi flashing tool, connect phone in fastboot mode and flash original os. Phone will be like brand new

And i don't remember that my fingerprint scanner had any problmes, now i have custom rom installed and its perfectly fine

Wociej said:
And i don't remember that my fingerprint scanner had any problmes, now i have custom rom installed and its perfectly fine
Click to expand...
Click to collapse
Thank you for the info. It's just what Xiaomi Unlock Tool reports I couldn't know.
The reason I am asking is because I need fingerprint services and NFC for my work.
Thanks again.

alexakispantazo said:
Thank you for the info. It's just what Xiaomi Unlock Tool reports I couldn't know.
The reason I am asking is because I need fingerprint services and NFC for my work.
Thanks again.
Click to expand...
Click to collapse
it will work... no issues with biometric sensor...

alexakispantazo said:
Thank you for the info. It's just what Xiaomi Unlock Tool reports I couldn't know.
The reason I am asking is because I need fingerprint services and NFC for my work.
Thanks again.
Click to expand...
Click to collapse
Will you install custom rom?

Wociej said:
Will you install custom rom?
Click to expand...
Click to collapse
I will try some custom roms and if they won't have the features I want I'll try the Indonesian region rom for mi apps. Also, I know I shouldn't relock the bootloader with custom roms, but can I relock it with different regions official roms?

alexakispantazo said:
I will try some custom roms and if they won't have the features I want I'll try the Indonesian region rom for mi apps. Also, I know I shouldn't relock the bootloader with custom roms, but can I relock it with different regions official roms?
Click to expand...
Click to collapse
Don't, bad idea.

alexakispantazo said:
Hello to everyone,
I wanted to unlock the bootloader of my device so I can modify it and I tried to follow the steps given by Xiaomi.
1] enable OEM unlock in developer settings,
2] connected my device to PC
3] signed in xiaomi unlocking tool
then a warning about security changes appeared before finalise the unlocking stating that i will lose fingerprint unlocking service of my phone.
The question is if someday I decide to return my phone to full stock state will fingerprint and the other security services return as functioning?
Thank you in advance.
Click to expand...
Click to collapse
Yes, everything works fine. If you want a close to stock experience flash xiaomi.eu, and everything will work. Fingerprint, facial recognition, nfc and banking apps will work perfectly fine, nothing to be worried about

Related

Getting my device in few days need help

Guys getting my device in few days need some help
How can I install Google store iam little nervous to root this device
Is that safe to use default rom?
yajur said:
Guys getting my device in few days need some help
How can I install Google store iam little nervous to root this device
Is that safe to use default rom?
Click to expand...
Click to collapse
Chances are Google will come pre-installed, problem is with vendor rom as well just follow the guides (in the guide section, you don't have to root if you flash genuine Chinese ROM don't even need TWRP. If you want EU ROM then TWRP is needed but not root, need to flash dm-verify before first boot if you don't root. If you go Chinese ROM can get Google from mi store.
Hi,
Your device should come with a Vendor ROM pre-installed which already has all the Google apps built in.
Its okay to use the vendor ROM if you dont mind not getting any updates. Just check with Malwarebytes to see if there is any malware. Malwarebytes flagged the default MIUI Notes app as a downloader trojan for me and a few others.
I personally wouldnt advice being on the Vendor ROM but thats just my opinion.
Anyway, as you wait for your phone to arrive, you can try applying for an Unlock code using the guide posted by underlines.
I would recommend switching to the EU ROM as it is a very clean and stable ROM with no bloatware. You can also refer to the guide I've posted if you wish to switch to the EU ROM from a Vendor ROM.
Its simple and as long as you follow the steps, you shouldn't face any issues.
Thanks guy I keep you posted.
How can you check if boot loader is unlock already
cheapshot789 said:
How can you check if boot loader is unlock already
Click to expand...
Click to collapse
fastboot OEM device-info
Boot your phone in fastboot mode and from command prompt type the above, assuming you have adb and fastboot installed on PC
guys got my device
How to find my rom in vendor rom or official rom ?
in the model number i can able to see MIUI global stable 8.0.8.0.0(MAHCNDI)
yajur said:
guys got my device
How to find my rom in vendor rom or official rom ?
in the model number i can able to see MIUI global stable 8.0.8.0.0(MAHCNDI)
Click to expand...
Click to collapse
You have a Vendor ROM on the device. Follow one of the guides and flash a ROM of your choice!
As long as you follow all the steps carefully, you shouldn't face any issues.
satishp said:
You have a Vendor ROM on the device. Follow one of the guides and flash a ROM of your choice!
As long as you follow all the steps carefully, you shouldn't face any issues.
Click to expand...
Click to collapse
Thanks for the reply
I applied for bootloader unlocking and it possible to flash official rom with bootloader locked?
yajur said:
Thanks for the reply
I applied for bootloader unlocking and it possible to flash official rom with bootloader locked?
Click to expand...
Click to collapse
Did you check whether bootloader is locked? There is a possibility that it is already unlocked.
And yes, you can flash official ROM via fastboot mode even if your bootloader is locked but it requires a special flash cable. Another way is to flash via EDL mode which bypasses a locked bootloader but this is a risky process and is usually only recommended as a last resort. Anyway none of the official ROMS have GAPPS built-in so I'd suggest its best you wait till you get the unlock code if your device isnt already unlocled.
satishp said:
Did you check whether bootloader is locked? There is a possibility that it is already unlocked.
And yes, you can flash official ROM via fastboot mode even if your bootloader is locked but it requires a special flash cable. Another way is to flash via EDL mode which bypasses a locked bootloader but this is a risky process and is usually only recommended as a last resort. Anyway none of the official ROMS have GAPPS built-in so I'd suggest its best you wait till you get the unlock code if your device isnt already unlocled.
Click to expand...
Click to collapse
oem device-info came fales only i already requested for unlocking i think i have to wait only.

Trojan found in the vendor rom

Hi All, I have received my mi mix today and it got pre-installed with vendor ROM MiUi 8.0.8.0.
I installed malware bytes and ran a scan and there is a trojan I found in the notes app and I am not able to delete that app.
I haven't got unlock code from Xiaomi :crying: . Till I get that I believe I will not be able to go to stable China ROM or EU ROM. Please correct me if I am wrong.
As I don't want to use the device with malware on it, does it mean I am stuck till I get the unlock key from xiaomi.
thehearty said:
Hi All, I have received my mi mix today and it got pre-installed with vendor ROM MiUi 8.0.8.0.
I installed malware bytes and ran a scan and there is a trojan I found in the notes app and I am not able to delete that app.
I haven't got unlock code from Xiaomi :crying: . Till I get that I believe I will not be able to go to stable China ROM or EU ROM. Please correct me if I am wrong.
As I don't want to use the device with malware on it, does it mean I am stuck till I get the unlock key from xiaomi.
Click to expand...
Click to collapse
This is not something new and has been reported by other users including myself. Even though Malwarebytes detects it as a Trojan, no one has reported any harm from that app and it is not confirmed that it is a Trojan.
Anyway, even I wanted to be on the safer side and didn't use the device until I had flashed a safe ROM. Luckily I had applied for the unlock code before I placed my order, so I had the code by the time I received the device.
It is technically possible to bypass bootloader and flash the official firmware. To bypass a locked bootloader, you need the deep flash cable or flash via EDL mode. Both these methods, especially flashing via EDL is only advised as a last resort. Using EDL is not usually recommended as there is a risk of permanently bricking the device. I wouldn't recommend these methods especially if you are new to flashing.
As of now, you can first check whether your bootloader is already unlocked by following instructions in one of the guides. If you're lucky and bootloader is already unlocked, you can flash one of the official ROMS.
If not, I would suggest that you wait till you receive your unlock code.
satishp said:
Using EDL is not usually recommended as there is a risk of permanently bricking the device. I wouldn't recommend these methods especially if you are new to flashing.
As of now, you can first check whether your bootloader is already unlocked by following instructions in one of the guides. If you're lucky and bootloader is already unlocked, you can flash one of the official ROMS.
If not, I would suggest that you wait till you receive your unlock code.
Click to expand...
Click to collapse
Thanks a lot . As I am totally new, I also didn't want to go the EDL route and I don't have the required cable either.
I will wait till I get the unlock code. In how many days did you get your unlock code.
thehearty said:
Thanks a lot . As I am totally new, I also didn't want to go the EDL route and I don't have the required cable either.
I will wait till I get the unlock code. In how many days did you get your unlock code.
Click to expand...
Click to collapse
I got the sms around 3days after I applied for the code. You can expect to receive yours in 3-5days from the date you applied.
thehearty said:
Thanks a lot . As I am totally new, I also didn't want to go the EDL route and I don't have the required cable either.
I will wait till I get the unlock code. In how many days did you get your unlock code.
Click to expand...
Click to collapse
Don't try EDL it's disabled on mix. There is a simple guide on going from vendor rom to which ever you want, no updates coming your way with vendor rom.
jazz452 said:
Don't try EDL it's disabled on mix. There is a simple guide on going from vendor rom to which ever you want, no updates coming your way with vendor rom.
Click to expand...
Click to collapse
Sure, thanks a lot. I am not going to try EDL at all. Want to first learn how to flash with TWRP first .
Waiting now for the unlock code Every time I get a message, I hope its from xiaomi sending the unlock code.
thehearty said:
Sure, thanks a lot. I am not going to try EDL at all. Want to first learn how to flash with TWRP first .
Waiting now for the unlock code Every time I get a message, I hope its from xiaomi sending the unlock code.
Click to expand...
Click to collapse
Did you check it wasn't already unlocked
jazz452 said:
Did you check it wasn't already unlocked
Click to expand...
Click to collapse
I had a check right after I opened the phone from the box. But its locked .
showing "unlock : false".
I was really hoping that vendor unlocked the bootloader for installing the vendor ROM but they didn't. I guess they used some other method.

Xiaomi Mi Mix 2 Unlock security risks

Hi everyone,
I've recently unlocked my Xiaomi Mi Mix 2 that came with the chinese rom so that I could install the global rom.
I've been using it for a while and when I opened a banking app, I get the following message:
Warning
It seems your device has had unauthorized modifications to its operating system. Using this device for your banking could compromise the security of your personal information.
I didn't think unlocking the phone would be this much of a risk. I don't understand too much about the technology behind this so I wanted to see if anyone could explain whats happening and if I should refund my phone.
Thanks!
brian0306 said:
Hi everyone,
I've recently unlocked my Xiaomi Mi Mix 2 that came with the chinese rom so that I could install the global rom.
I've been using it for a while and when I opened a banking app, I get the following message:
Warning
It seems your device has had unauthorized modifications to its operating system. Using this device for your banking could compromise the security of your personal information.
I didn't think unlocking the phone would be this much of a risk. I don't understand too much about the technology behind this so I wanted to see if anyone could explain whats happening and if I should refund my phone.
Thanks!
Click to expand...
Click to collapse
You are probably using the global dev rom which doesn't pass Safetynet for various reasons. You shouldn't have any issues with the global stable rom.
Don't listen to the guy above. Flash Global Stable ROM if you haven't already and lock your bootloader. From then on all will be good.
Mr_Bartek said:
Don't listen to the guy above. Flash Global Stable ROM if you haven't already and lock your bootloader. From then on all will be good.
Click to expand...
Click to collapse
...
I said pretty much exactly the same thing as you?
It won't matter whether he uses Dev or Stable if his bootloader is left unlocked. He needs both Global Stable and a locked bootloader.
Mr_Bartek said:
It won't matter whether he uses Dev or Stable if his bootloader is left unlocked. He needs both Global Stable and a locked bootloader.
Click to expand...
Click to collapse
How do I lock my bootloader?? I've already unlocked my phone
brian0306 said:
How do I lock my bootloader?? I've already unlocked my phone
Click to expand...
Click to collapse
U don't need to lock the bootloader to get it to work, I'm on the global ROM with unlocked bootloader - safety net passes.
It also passes on Xiaomi EU ROM with unlocked bootloader. Just flash one of those ROMs, install magisk, and set magisk to hide.
@brian0306, have a look here: https://youtu.be/6u3Pg1JOXkI
brian0306 said:
Hi everyone,
I've recently unlocked my Xiaomi Mi Mix 2 that came with the chinese rom so that I could install the global rom.
I've been using it for a while and when I opened a banking app, I get the following message:
Warning
It seems your device has had unauthorized modifications to its operating system. Using this device for your banking could compromise the security of your personal information.
I didn't think unlocking the phone would be this much of a risk. I don't understand too much about the technology behind this so I wanted to see if anyone could explain whats happening and if I should refund my phone.
Thanks!
Click to expand...
Click to collapse
I am running Miui 9 global with unlocked bootloader and rooted with Magisk 14.3 and it passes safetynet and Android pay works just fine.
Guys, I know this is XDA but come on. Guy just wants a working phone without the hassle. He didn't ask for root or methods to bypass Safetynet with Magisk! Locking bootloader on an official Global Stable ROM is all he needs.
Mr_Bartek said:
Guys, I know this is XDA but come on. Guy just wants a working phone without the hassle. He didn't ask for root or methods to bypass Safetynet with Magisk! Locking bootloader on an official Global Stable ROM is all he needs.
Click to expand...
Click to collapse
You forgot to mention they also didn't ask for locking the bootloader either.
Do you really think someone who says this really cares about bypassing Safetynet?
I didn't think unlocking the phone would be this much of a risk. I don't understand too much about the technology behind this so I wanted to see if anyone could explain whats happening and if I should refund my phone.
Click to expand...
Click to collapse
Also, don't quote the post you are replying to if it's right above yours. It's bad netiquette.
Mr_Bartek said:
Do you really think someone who says this really cares about bypassing Safetynet?
Also, don't quote the post you are replying to if it's right above yours. It's bad netiquette.
Click to expand...
Click to collapse
Only the poster can decide if they care or not, it's better to have more options than 1.
It's not bad etiquette, it ensures that my comment addresses the comment I want it to address.
Mackay53 said:
Only the poster can decide if they care or not, it's better to have more options than 1.
It's not bad etiquette, it ensures that my comment addresses the comment I want it to address.
Click to expand...
Click to collapse
+1, installing magisk is definitely the easier fix. Won't need to wipe data or anything
@ssojyeti2, locking bootloader doesn't wipe data. Stop spreading misinformation. Also how is it easier if you have to flash (or at least boot TWRP) and then flash Magisk zip? To lock BL you need to run one command (fastboot oem lock) and you're done.
Mr_Bartek said:
@ssojyeti2, locking bootloader doesn't wipe data. Stop spreading misinformation. Also how is it easier if you have to flash (or at least boot TWRP) and then flash Magisk zip? To lock BL you need to run one command (fastboot oem lock) and you're done.
Click to expand...
Click to collapse
How exactly is that spreading misinformation?
Ssojyeti2 just clearly said that flashing magisk doesn't wipe your data or anything. Nothing about locking bootloader...
Mr_Bartek said:
@ssojyeti2, locking bootloader doesn't wipe data. Stop spreading misinformation. Also how is it easier if you have to flash (or at least boot TWRP) and then flash Magisk zip? To lock BL you need to run one command (fastboot oem lock) and you're done.
Click to expand...
Click to collapse
Stop being so butthurt bro
Mr_Bartek said:
Guys, I know this is XDA but come on. Guy just wants a working phone without the hassle. He didn't ask for root or methods to bypass Safetynet with Magisk! Locking bootloader on an official Global Stable ROM is all he needs.
Click to expand...
Click to collapse
Well said. I just got my phone and it's on the Chinese rom. I'm not a rom/flash xda member and I'm leaving my phone on the Chinese rom and stock. Bloat removed or frozen already with a 1.5gb update pending for download tonight (a nice option miui gave me) and a smaller update installed as I switched on the phone. I intend to keep this phone for a few years and I'm not f*cking with anything.
Gapps installed and working perfectly, including contacs sync which was an issue at some point. I haven't tried nfc yet but everything works including irrelevant apps asking for nfc access (lol). Nah, I'll stick with the Chinese rom until there's a compelling reason to change it.

ReUnlocking converted A2 (6X)

I have a converted A2 (+ARB 4), with UNLOCKED bootloader.
I read somewhere if you relock the BL , you will not able to UNLOCK it again ever after! (is it true?)
and other thing: If it try the MIUI BL Unlocker Official Application to unlock my device (even when it is still unlocked) what could be happen? (I've just followed the steps till the warning msg: "Unlocking Bootloader will erase user Data" ). (I read somewhere else that for unlocking miui devices you need to submit the request and you need to wait for a long time to get the code, and I was going to get the code for a case of necessity in future.)
I need to know how far I can play with these stuffs on my devices and left a practical way to recover a Bricked phone. ( I consider even TEST POINT as a practical option [tried once and it is damn easy and fun ] )
Im sorry bro but the actual model and serial code of your phone is a A2.And that means you probably wont unlock it it will give a hardware error.But pls try it and report.Dont worry there will be a fix!!
Tech_jetoncesaj said:
Im sorry bro but the actual model and serial code of your phone is a A2.And that means you probably wont unlock it it will give a hardware error.But pls try it and report.Dont worry there will be a fix!!
Click to expand...
Click to collapse
If it locked again my BL, what would be the solution? I didn't find any.
the mi unlock app requires a mi account with unlock permissions (account! not phone)
if you try to unlock an unlocked a2 you should either get unsuported - it's meant for miui devices - or already unlocked.
The app first checks the account and passes to further steps, then recognizes my phone, and warns me about wiping Data. ( At this step I declined and closed the app)
Your hypothesis seems correct, but if in any circumstances I would be left with relocked converted A2 , ist there any chance to reunlock it again?
that's why the test point method exists, for locked that you try to fastboot flash
I tried, and it just says: Device Unlocked, no need to reunlock again!
So now is it safe to lock my bootloader and try the app again?
if you lock the bootloader via fastboot commands it wont boot any more.
only way to safely lock is with miflash and you cannot miflash a wayne miui on a converted a2. it will see that it's the jasmine.
if you miflash the a2 fastboot rom it will relock ok - if the flashing works...might not cuz of the arb - but you wont be on miui any more.
what are you trying to do anyway?
i think what you dont understand is the unlock on miui and android one are the same end result but different steps. for miui you godda use the mi unlock, for and1 its just the dev options switch
laviniu_c said:
if you lock the bootloader via fastboot commands it wont boot any more.
Click to expand...
Click to collapse
So if I run the command and re-lock it by Fastboot, how can I re-unlock it again?
laviniu_c said:
only way to safely lock is with miflash and you cannot miflash a wayne miui on a converted a2. it will see that it's the jasmine.
if you miflash the a2 fastboot rom it will relock ok - if the flashing works...might not cuz of the arb - but you wont be on miui any more.
Click to expand...
Click to collapse
So do you mean there is no safety way to re-lock a converted A2 which runs MIUI ?
(and If I had a Banking app which needs a Locked BL to work, there will be no chance to run it at all?)
laviniu_c said:
what are you trying to do anyway?
Click to expand...
Click to collapse
As I said I want to know all the aspects of practical ways to deal with my phone, right now I am totally happy with it, but actually the opportunity of dealing with all these technical stuffs convinced me to buy this phone.
laviniu_c said:
i think what you dont understand is the unlock on miui and android one are the same end result but different steps. for miui you godda use the mi unlock, for and1 its just the dev options switch
Click to expand...
Click to collapse
I've heard that some ROMs may re-lock the phone, since then I would like to know if in any circumstances I would be stuck on that situation how can I re-unlock my phone.
any official miui rom that has the firmware folder in it might do it for example, so will bad ports....
try to use the magisk hide options to fix the banking app, add it to the list of apps for which it specifically hides root. add also the google services and make sure you pass the safetynet tests and your device shows as certified in the playstore settings. i think there were some modules to fix the bl check
laviniu_c said:
any official miui rom that has the firmware folder in it might do it for example, so will bad ports....
Click to expand...
Click to collapse
So lets assume it has been happened, what would be the procedure to rescue my phone? since as you said if the BL locked again it will not boot to OS.
laviniu_c said:
try to use the magisk hide options to fix the banking app, add it to the list of apps for which it specifically hides root. add also the google services and make sure you pass the safetynet tests and your device shows as certified in the playstore settings. i think there were some modules to fix the bl check
Click to expand...
Click to collapse
I would'nt like to root the phone, isn't there any other option?
if you lock the bootloader with any kind of non official rom for your phone (i.e. jasmine_sprout) which in your case is android one it wont boot. the end. only way out of that is the edl mode and miflash. that's the basic difference between locked and unlocked, it checks what os it loads and it makes sure the loaded os is the official rom for the phone. converting the a2 means it needs to be unlocked and you load a rom that's a ported miui10 from wayne to jasmine_sprout. if you flash the full rom, that has the locked bootloader from wayne which will fail to start since:
1 - the phone still isnt wayne
2- the rom isnt quite the official one (since it's renamed to work on jasmine)
3 - even if the phone was fully wayne, you dont really want the official mi 6x rom since that's china only. i.e. no google services
the only unknown in all this is the ARB, but edl should ignore that.
somehow i was under the impression you already have magisk (root/hide) up and running on the converted miui 10. yes, there are good miui 10 ports (for example xiaomi.eu) that give you the miui experience on a2 except they will never have the full ota support that the official rom has.
my advice? stick to the stock a2 rom. locked and full stock. the moment you need to start experimenting is when the android one support stops OR if you really want root.
if you wanted miui and you're outside china, mi 6x is still NOT the way to go. cuz it doesnt have an official global rom anyway. i dont get why everyone is jumping through hoops to get unofficial roms installed with stock support available.
laviniu_c said:
if you lock the bootloader with any kind of non official rom for your phone (i.e. jasmine_sprout) which in your case is android one it wont boot. the end. only way out of that is the edl mode and miflash.
Click to expand...
Click to collapse
So please consider these situations:
The phone is A2 converted to 6X &
The BL has been re-locked &
ARB 4 has been triggered
how can I use EDL mode to unlock it?
(I think miflash would not help because the LOCKED BL and the phone is actually A2)
(I think also Fastboot wont be able to unlock it since it is A2 Converted to 6X)
laviniu_c said:
yes, there are good miui 10 ports (for example xiaomi.eu) that give you the miui experience on a2 except they will never have the full ota support that the official rom has.
Click to expand...
Click to collapse
I'm afraid but I didt't get the point, now every week I receive Pie beta updates (besides there are stable versions too) which actually stable enough, almost Bug & Lag Free (it differs Rom to Rom, but believe me it is COOL ) , and by PitchBlack you can use direct update. (I prefer to install it by myself since I LOVE TWRP & its child PB). so what exactly we miss of original OTA service of XIAOMI?
laviniu_c said:
my advice? stick to the stock a2 rom. locked and full stock. the moment you need to start experimenting is when the android one support stops OR if you really want root..
Click to expand...
Click to collapse
But I think it wouldn't be an option for who has triggered ARB4! isn't it? (I read when you got ARB4 you must forget AndroidOne! even TestPoint won't help)
laviniu_c said:
if you wanted miui and you're outside china, mi 6x is still NOT the way to go. cuz it doesnt have an official global rom anyway. i dont get why everyone is jumping through hoops to get unofficial roms installed with stock support available.
Click to expand...
Click to collapse
Again I didn't get what do you mean, could you please explain it a bit more? (since my current MIUI 10.4 has almost everything)
http://bigota.d.miui.com/V10.0.2.0....0.PDIMIFJ_20181206.0000.00_9.0_02b8deeb6d.tgz this should work with the testpoint/edl method and miflash. (unless arb does something to stop it)
there's a few problems with your approach.
1) not official. any time the guys maintaining the custom rom can decide to stop producing it.
2) all work into these custom roms is voluntary. are they sometime better? sure, never said they werent but again, xiaomi/google/android have far far more resources at their disposal and while the phone is under the official period it will be maintained.
3) did you bother to read the first lines in any custom rom? they take 0 responsibility for whatever happens to your phone. they do not intend to break it, but they dont have to support you if you're in trouble either. if you dont have a valid warranty, that's understandable, you don't lose anything. but guess what? there are official vendors for xiaomi all over the world, offering official warranty. that holds as long as you're on STOCK.
4) though most custom roms are well intended, there is nothing assuring you there's nothing inside there that you dont want installed. you move your trust from xiaomi/google/android (which you can hold accountable) to whoever made that rom (who just carpet say, it's your phone you're doing the flashing, anything happens you're on your own). in most cases those devs don't mean harm, but they could and there's nothing to stop them (and they would never put in the hours of work if there was accountability for their action - i perfectly understand them. it's sortof like, i can try to do this, but because my work is not paid for by the end user they do not have any hold over me. it's correct and yet at the same time it's very very dangerous.). ever seen a custom miui built by a shop? i have, it's packed full of junk, bugs and malware. another thing here is testing. the official rom goes through a bunch of tests/beta versions. not saying it's perfect but it's better then the "known bugs: you tell me". custom rom devs cannot do it any other way, they dont have the time to test or the team to test.
5) the official devs don't have this option, they have a job and do it. it's a completely different approach.
this is not a rant against custom rom devs, i understand them 100%, they're trying to help. what i'm saying is there's always 2 sides to each story. there's no right or wrong, there's just what's best for each user. some of us will want the safe and easy way of the stock roms. some will want custom roms. in the end everyone is doing what they choose with their phone.
laviniu_c said:
http://bigota.d.miui.com/V10.0.2.0....0.PDIMIFJ_20181206.0000.00_9.0_02b8deeb6d.tgz this should work with the testpoint/edl method and miflash. (unless arb does something to stop it)
Click to expand...
Click to collapse
I think it will not work, the Actual duty of ARB4 is to preventing you to use these things! as much as I know after ARB4 you have two options: MIUI 10 or custom ROMs such as Havoc or so, for AndroidONE we need to wait a version of AndroidONE which be compatible with ARB4! otherwise flashing STOCK AndroidONE will simply brick your phone! THE whole IDEA of this THREAT is this!
And BTW as much as I know XIAOMI.EU is cooperating now with the XIAOMI ! besides we do not keep a phone for a whole life time, 2-3 years of supports would be far enough. and they do offer it right now!
and I would like to lock the BL for further security reasons but it seems to be impossible so far otherwise someone suggests a practical way for it.
I guess you need to contact me.
sz.hatef said:
If it locked again my BL, what would be the solution? I didn't find any.
Click to expand...
Click to collapse
Hey its not very good to talk here in xda.We can try some methods!
Chat with me in telegram.
 @blackgryphon1
Dont worry about brick,bcz im the only one who can unbrick,downgrade a xiaomi phone even if its arb4.
Feel free to contact me.
Also join my group i will be there too.
Since i cant post links,search this on telegram <<its my group>><<iT HAS A BLACK PHONE WALLPAPER AND IT HAS 86 MEMBERS!
Mi A2 & Mi 6X
Tech_jetoncesaj said:
Hey its not very good to talk here in xda.We can try some methods!
Chat with me in telegram.
@blackgryphon1
Dont worry about brick,bcz im the only one who can unbrick,downgrade a xiaomi phone even if its arb4.
Feel free to contact me.
Also join my group i will be there too.
Since i cant post links,search this on telegram <<its my group>><<iT HAS A BLACK PHONE WALLPAPER AND IT HAS 86 MEMBERS!
Mi A2 & Mi 6X
Click to expand...
Click to collapse
Just as I said, I would like to know the possible ways, currently I haven't any problem, could you explain it a bit , how could it possible to reunlock my BL if it get locked on MIUI?
ahem.
There is NO way to unlock an A2 device that has been converted to an 6X with ARB anti 4.
Your bootloaders are important in this case (xbl.elf and abl.elf). ARB and bootloader status is also managed here.
If you are using A2, with 6X system without ARB anti 4, that phone uses A2 bootloader. So if you lock your bootloader, it will brick to fastboot (The system has been destroyed / Press any key to shutdown). EDL will still accept any flashes without authentication. You may or may not be able to unlock it again through fastboot.
If you are using A2, with 6X system and firmware with ARB anti 4, that phone uses 6X bootloader. So if you lock your bootloader, it will brick to fastboot (The system has been destroyed / Press any key to shutdown). EDL will not accept any flashes without authentication*. You cannot unlock the phone through fastboot**.
*There is a workaround to this but you need to open your phone's back.
**Because MIUI devices need Mi Unlock to be unlocked, and Mi Unlock wants you to log in, and the system is not accessible, your phone will stay bricked.
You can still unbrick the phone with the above workaround, but you will be stuck with China MIUI and won't be able to unlock your phone's bootloader even if you logged in because your phone is not registered on Mi Unlock database (since Android One devices do not need/use Mi Unlock because of Google's enforcements).
Too long, didn't read?
Do not attempt to lock your phone. Even if you are on fully stock with your phone's own firmware. Locking is extremely risky due to the fact that even unlocking the bootloader corrupts the system integrity in some way.
Letzen said:
ahem.
There is NO way to unlock an A2 device that has been converted to an 6X with ARB anti 4.
Your bootloaders are important in this case (xbl.elf and abl.elf). ARB and bootloader status is also managed here.
If you are using A2, with 6X system without ARB anti 4, that phone uses A2 bootloader. So if you lock your bootloader, it will brick to fastboot (The system has been destroyed / Press any key to shutdown). EDL will still accept any flashes without authentication. You may or may not be able to unlock it again through fastboot.
If you are using A2, with 6X system and firmware with ARB anti 4, that phone uses 6X bootloader. So if you lock your bootloader, it will brick to fastboot (The system has been destroyed / Press any key to shutdown). EDL will not accept any flashes without authentication*. You cannot unlock the phone through fastboot**.
*There is a workaround to this but you need to open your phone's back.
**Because MIUI devices need Mi Unlock to be unlocked, and Mi Unlock wants you to log in, and the system is not accessible, your phone will stay bricked.
You can still unbrick the phone with the above workaround, but you will be stuck with China MIUI and won't be able to unlock your phone's bootloader even if you logged in because your phone is not registered on Mi Unlock database (since Android One devices do not need/use Mi Unlock because of Google's enforcements).
Too long, didn't read?
Do not attempt to lock your phone. Even if you are on fully stock with your phone's own firmware. Locking is extremely risky due to the fact that even unlocking the bootloader corrupts the system integrity in some way.
Click to expand...
Click to collapse
Thanks a lot, it explains everything and totally sounds right to me,
Just couple questions:
so in any circumstances it could be again usable just with a Chinese ROM, and so there will be no way to install Google Play on it, since there will be no custom recovery , no root accessibility , ... , It will be for ever with a Pure Chinese ROM (which practically would be unusable for us). Am I right?
Considering above situation, sending the device to a Xiaomi Center could help us to get back to any kind of global ROM (AndroidONE / MIUI) or not?
Right now I am totally happy with Xiaomi.eu MIUI BETA roms, no need to switch to other projects, I need to know is there any chance to stuck with a locked BL while attempting the new Beta ROMs? I use PitchBlack to flash new ROMs every week. Or if I want to ask it in short: How to prevent to get a Locked BL?
Thanks a lot again.
sz.hatef said:
Thanks a lot, it explains everything and totally sounds right to me,
Just couple questions:
so in any circumstances it could be again usable just with a Chinese ROM, and so there will be no way to install Google Play on it, since there will be no custom recovery , no root accessibility , ... , It will be for ever with a Pure Chinese ROM (which practically would be unusable for us). Am I right?
Considering above situation, sending the device to a Xiaomi Center could help us to get back to any kind of global ROM (AndroidONE / MIUI) or not?
Right now I am totally happy with Xiaomi.eu MIUI BETA roms, no need to switch to other projects, I need to know is there any chance to stuck with a locked BL while attempting the new Beta ROMs? I use PitchBlack to flash new ROMs every week. Or if I want to ask it in short: How to prevent to get a Locked BL?
Thanks a lot again.
Click to expand...
Click to collapse
does flashing a MIUI.eu beta ROM without deleting the firmware folder lock the bootloader ?
what's the benefit from not deleting the firmware folder?
i'm using a converted MI A2
thanks

chinese rom with locked bootloader to global rom possible?

Hello all,
Yesterday I received a k20 pro from china with an unlocked bootloader.
I wanted to get rid of the spy/bloatware so i went and tried to install twrp to install another ROM, but for some reason TWRP flipped when i installed it (i think i forgot to turn off encryption) and just decided to stop working altogether. Recovery did not work anymore and so i was stuck in fastboot (bootlooping). After some stressfull googling i found out, the only way to get the phone working again is by flashing the (only) fastboot ROM, which was the chinese variant.
I was so stressed out, i forgot to change the flash option in xiaomi flash tool to "clean all" instead of "clean all and lock"(which is the default, fu Xiaomi).
So now my phone has a chinese ROM and the bootloader is locked.
So my question is:
Once i get the bootloader unlocked again (which will take 1 week hopefully), will i be able to install the global ROM (once it is released) or a better, a non-spying ROM?
Also, i tried debloating the chinese rom, but everytime i apparently debloat too much and the phone just stops working and i need to do a reset.
Does anyone have a proper list of xiaomi applications that are safe to remove (trough adb)? the ones i found remove too much.
Thanks in advance.
Yes, once you unlock your bootloader again, you can flash indian global firmware, which has less bloats, google apps and services included, and poco launcher.
For debloating cn rom, there is a tool here, I'll find and link.
May use this for debloating- https://github.com/Saki-EU/XiaomiADBFastbootTools
kibria.mgk said:
May use this for debloating- https://github.com/Saki-EU/XiaomiADBFastbootTools
Click to expand...
Click to collapse
Hi, this is the program that i've been using for removing the xiaomi apps, however when some of the listed apps are removed the phone won't be able to restart anymore and i have to do a reset.
For now, i manually removed all the removable spyware by hand and installed blokkada to deny communication to xiaomi servers. I don't dare to remove a lot of system apps trough adb anymore since i had to reset my phone 5 times already... i just want to use it now...
Just endure the pain until bootloader is unlocked again then move over to the Indian rom, its much more tolerable.
Angelina7 said:
Just endure the pain until bootloader is unlocked again then move over to the Indian rom, its much more tolerable.
Click to expand...
Click to collapse
there no mi 9t pro rom yet ?
dev-DaT said:
Hi, this is the program that i've been using for removing the xiaomi apps, however when some of the listed apps are removed the phone won't be able to restart anymore and i have to do a reset.
For now, i manually removed all the removable spyware by hand and installed blokkada to deny communication to xiaomi servers. I don't dare to remove a lot of system apps trough adb anymore since i had to reset my phone 5 times already... i just want to use it now...
Click to expand...
Click to collapse
This is the safest option. Whilst waiting for bootloader unlocking I just uninstalled anything that could be and disabled anything else that could be disabled. There were still many things I wanted to remove that could not be uninstalled or disabled, but decided I could live with them for a week.
After your week is up, you've got many options. If you like MIUI but not the bloat and spyware, then there are MIUI custom ROMs that remove the junk, xiaomi.eu ROMs being one of the biggest. Otherwise there are AOSP based custom ROMs that are stable enough to use.
Aimara said:
there no mi 9t pro rom yet ?
Click to expand...
Click to collapse
No not yet, we are all waiting for it, it should be released soon.
Robbo.5000 said:
This is the safest option. Whilst waiting for bootloader unlocking I just uninstalled anything that could be and disabled anything else that could be disabled. There were still many things I wanted to remove that could not be uninstalled or disabled, but decided I could live with them for a week.
After your week is up, you've got many options. If you like MIUI but not the bloat and spyware, then there are MIUI custom ROMs that remove the junk, xiaomi.eu ROMs being one of the biggest. Otherwise there are AOSP based custom ROMs that are stable enough to use.
Click to expand...
Click to collapse
Yeah i guess ill have to endure being tracked 24/7 for a week ... thanks for all your responses. I am happy to know i can just go back to custom rom after the bootloader is unlocked.
I just hope i don't **** it up like last time.
How long it is currently to wait for bootloader unlock approval?
dpdp73 said:
How long it is currently to wait for bootloader unlock approval?
Click to expand...
Click to collapse
7 days for me
Hello, I have a cruel doubt. I was really wondering if after I unlock the bootloader (I have a Chinese rom) doing Global installation I can lock the bootloader? Because you have this possibility and I believe we received normally correct updates, can anyone help me?
phkopp said:
Hello, I have a cruel doubt. I was really wondering if after I unlock the bootloader (I have a Chinese rom) doing Global installation I can lock the bootloader? Because you have this possibility and I believe we received normally correct updates, can anyone help me?
Click to expand...
Click to collapse
NO.
If you try and lock the bootloader with anything that is not the original region you will hard brick the phone.
If you have a Chinese phone, then you can only lock the bootloader when installing an official Chinese ROM.
I think only the account used to unlock the blootloader can relock and re-reunlock it.
If you lock the phone, you won't be able to unlock it again with another account.
It is just a safety mechanism from xiaomi.
ntmalol said:
I think only the account used to unlock the blootloader can relock and re-reunlock it.
If you lock the phone, you won't be able to unlock it again with another account.
It is just a safety mechanism from xiaomi.
Click to expand...
Click to collapse
You don't need an account to lock the bootloader.
Provided that there is not a Mi account linked to a phone, then anyone who has the phone in their possession can unlock it.
When people have bought a phone already unlock, then accidentally locked it, they have been able to unlock it themselves if the seller has already unlinked the phone from the sellers Mi account
Robbo.5000 said:
You don't need an account to lock the bootloader.
Provided that there is not a Mi account linked to a phone, then anyone who has the phone in their possession can unlock it.
When people have bought a phone already unlock, then accidentally locked it, they have been able to unlock it themselves if the seller has already unlinked the phone from the sellers Mi account
Click to expand...
Click to collapse
So basically it is possible, if one gets a k20 pro flashed with global rom, that if the seller forgets to remove his account from the phone, you're stuck using ONLY other roms? In other words, in order to relock the bootloader and install official chinese rom, you need to contact the seller and ask him to go on his mi account to remove your phone?
android2819 said:
So basically it is possible, if one gets a k20 pro flashed with global rom, that if the seller forgets to remove his account from the phone, you're stuck using ONLY other roms? In other words, in order to relock the bootloader and install official chinese rom, you need to contact the seller and ask him to go on his mi account to remove your phone?
Click to expand...
Click to collapse
Yes there has been a few cases on these forums where this had happened.
However, you can still use official MIUI ROMs, you can still flash the Chinese ROM and lock the bootloader. The problem then is that you cannot unlock the bootloader again if the phone it's still linked to another account.
If you buy a Chinese phone with a global ROM, why would you then want to flash a Chinese ROM and lock the bootloader? You would be better off just buying the phone still with the Chinese ROM and locked, if that's what you wanted.
People have had problems because they've been flashing an official ROM with the Mi Flash Tool and accidentally left the flash option to flash and lock. When flashing with the Mi Flash Tool you just need to remember to change the default flash option every time you use it.
If you never relock the bootloader, then you will never have this problem and can still use official MIUI.
Robbo.5000 said:
NO.
If you try and lock the bootloader with anything that is not the original region you will hard brick the phone.
If you have a Chinese phone, then you can only lock the bootloader when installing an official Chinese ROM.
Click to expand...
Click to collapse
Ok, thanks for clearing up my doubts.
---------- Post added at 02:01 PM ---------- Previous post was at 01:58 PM ----------
I actually have another one. Can I install bootloader-unlocked update pscotes in the global rom on k20 pro without losing files, or everytime I have to install full rom?
phkopp said:
...
I actually have another one. Can I install bootloader-unlocked update pscotes in the global rom on k20 pro without losing files, or everytime I have to install full rom?
Click to expand...
Click to collapse
I'm not sure what you're asking. I'm guessing pscotes is a typing error.
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