Develop Bugs

Unlocking bootloader

Guys I'm using redmi note5pro (India) running on miui 9.5.19...I want to unlock bootloader..
please anyone tell me if i unlock bootloader then warranty will void or not??
And there is any impact of anti rollback if i unlock bootloader..
I just want to install google camera..pls rply guys...
thanks

I unlocked mine on 9.5.19 itself. So you can do it even if you're anti 4. Just don't flash any firmware update zip. :good:
There's a thread for all about anti FAQ I suggest you read that. For warranty if you go to service center with stock then you're good otherwise they'll charge. If you go totally bricked then there're 50-50 chances.

Even I also want to know this. Somebody, please help us.

I'm on 9.5.13. I unlocked bootloader rebooted to setup ROM again (unlocking will factory reset your ROM as well as wipe your internal storage). After setting up, rebooted into fastboot and then followed the TWRP recovery installation process (for ARB3) and flashed then booted into TWRP (followed this but these won't work for you as you're in ARB4) from fastboot and continued with flashing lazyflasher, magisk 16.0 and then C2API zip (to enable camera2 API for Gcam) and reboot. After reboot, installed the Arnova's GCAM port (GoogleCamera-Pixel2Mod-Arnova8G2-V8.1.apk). its working fine for rear and for front, I had to enable 'Use classic Smartburst" and then front too worked.
Edit: For Op's case, only TWRp installation process will be different and rest all would be same. Make sure you never downgrade your miui rom only upgrade otherwise it will brick. If someday, you move to custom rom make sure to remeber the miui version you were on so that in case you plan to come back, you'll have to flash the same miui rom (so keep the last miui rom zip somewhere in case you plan to go back)
Hope this helps!

Some questiona.

Hello everyone. Mi max 3 is my first xiaomi device, so I do not basically understand anything about the devices. Before I had an Honor X2 (Huawei) and the process is a bit different. So here are some questions:
1- How do I backup the original recovery?
2- When I went to check if the rollback was active, no information appeared, so does it mean it is not active? (the miui version is 9.6.7.0 OEDMIFD)
3- If I back up via twrp of the original rom, can I restore it normally over another ROM or have some procedure to be done before?
In your opinion, is it worth installing the resurrected kernel?
I will unlock the bootloader soon and I need this information to learn about this device. Thanks and sorry for the lousy English (Google translator).

Germano1980 said:
Hello everyone. Mi max 3 is my first xiaomi device, so I do not basically understand anything about the devices. Before I had an Honor X2 (Huawei) and the process is a bit different. So here are some questions:
1- How do I backup the original recovery?
2- When I went to check if the rollback was active, no information appeared, so does it mean it is not active? (the miui version is 9.6.7.0 OEDMIFD)
3- If I back up via twrp of the original rom, can I restore it normally over another ROM or have some procedure to be done before?
In your opinion, is it worth installing the resurrected kernel?
I will unlock the bootloader soon and I need this information to learn about this device. Thanks and sorry for the lousy English (Google translator).
Click to expand...
Click to collapse
1 - When you do backup within twrp you just select recovery as well. I think this is the same with every twrp, not device specific.
2 - Seem like you have a global version taking this from your post and the version you have. I don't think you have anti rollback activated. However as there is no official global version released by xiaomi no one really knows what to expect.
In additional I cannot really understand your reason why you want to unlock your bootloader if you have an official version?? Some people may kill for that version here . Be careful though what you would install after you have the BL open because lots of the newer roms got ARB enabled.
3 - If you have permissions on all the partition once you installed twrp then backing up the current rom and restore it should work fine.

Newbie here! Have some questions about twrp, custom roms and ARB.

Hello Redmi Note 5/Pro users!
I was browsing the forum looking for the available custom ROMs for our device and decided that I wanted to try Pixel Experience, so I started looking through guides to unlock BL, flash twrp and then flash a custom ROM. Thing is, I'm a little bit confused.
First of all, I've read the post about how ARB works, and I still can't find the answer that I'm looking for, or probably I still can't understand how ARB works at all. Let's say I unlock BL, boot twrp, flash twrp, and then I flash a ROM like Pixel Experience. What is the safest way to get back to MIUI? As of my understanding I will only brick my phone IF I flash an older version of MIUI, thing is, what is "older" exactly? I'm sitting on MIUI 10 V10.2.2.0.OEIMIXM right now, If I wanted to flash MIUI again should I flash any newer build (when it comes out) to the one I'm sitting now (or the same)? Also, what precautions should I take when doing so? (I've read someting about encryption that I don't understand at all).
Secondly, does this guide still work for the current MIUI version and ARB version (I'm on 4)? I've read some comments saying that the part of flashing twrp is not updated and others saying that everything still works perfectly, can someone confirm this please?
That's it for now, thanks in advance for your patience and let's keep this community awesome!

Aleejo26 said:
Hello Redmi Note 5/Pro users!
I was browsing the forum looking for the available custom ROMs for our device and decided that I wanted to try Pixel Experience, so I started looking through guides to unlock BL, flash twrp and then flash a custom ROM. Thing is, I'm a little bit confused.
First of all, I've read the post about how ARB works, and I still can't find the answer that I'm looking for, or probably I still can't understand how ARB works at all. Let's say I unlock BL, boot twrp, flash twrp, and then I flash a ROM like Pixel Experience. What is the safest way to get back to MIUI? As of my understanding I will only brick my phone IF I flash an older version of MIUI, thing is, what is "older" exactly? I'm sitting on MIUI 10 V10.2.2.0.OEIMIXM right now, If I wanted to flash MIUI again should I flash any newer build (when it comes out) to the one I'm sitting now (or the same)? Also, what precautions should I take when doing so? (I've read someting about encryption that I don't understand at all).
Secondly, does this guide still work for the current MIUI version and ARB version (I'm on 4)? I've read some comments saying that the part of flashing twrp is not updated and others saying that everything still works perfectly, can someone confirm this please?
That's it for now, thanks in advance for your patience and let's keep this community awesome!
Click to expand...
Click to collapse
1. More info abt arb 4 and 3: https://en.miui.com/thread-2340434-1-1.html
2. Basically you can flash any rom with arb 4 (not necessary newer than your current rom version)
3. Yes, this guide still works but you'll need to enter fastboot flash antirbpass dummy.img on fastboot before flashing twrp, just google whyred dummy.img and you'll find it.
Sent from my Redmi Note 5 Pro using XDA Labs

RN8Pro EEA TWRP & Root

So,
I have a RN8PRO running MIUI 11.0.3, on Android 9 (PGGEUXM)
From my understanding, it says global on about phone, but this is really EEA.
My question is, do all Global TWRP and Magisk support EEA?
How do I know this is a chinese device running PGGEUXM?
Has anyone put TWRP and rooted there phone running this software?
What is the best TWRP for this device? Should I go for the Official one or are there better ones that perhaps support OTA updates?
Why do some guides tell you to disable AVB where as others don't?
Code:
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
And why do some guides tell you to delete "recovery_fromboot.p"
My ultimate goal would be to have a custom recovery and root on stock MIUI.
I'm hoping someone could clear this up and perhaps reduce the rate of bricking phones! I will be using AgentFabulous preloader & lk.img as well in a preventive measure!
Tia!

I have the global model as well, LR-TWRP is what you want as most others will give you a black screen. If/when you upgrade to Q, there's an LR-TWRP that supports that too. Nice thing is, it comes with AVB and dm-verity feature built in. The regular Magisk will work fine too.
I removed the recovery_boot file as it would flash stock recovery on reboot if I didn't. Try it without and see.

wang1chung said:
I have the global model as well, LR-TWRP is what you want as most others will give you a black screen. If/when you upgrade to Q, there's an LR-TWRP that supports that too. Nice thing is, it comes with AVB and dm-verity feature built in. The regular Magisk will work fine too.
I removed the recovery_boot file as it would flash stock recovery on reboot if I didn't. Try it without and see.
Click to expand...
Click to collapse
Okay thanks, that clears quite a few things up, I believe in that case I'm going to follow pritish1998 guide on this, as he is uing LR-TWRP. I'm so out of touch it's been years since I've done any of this previously owning an s7 edge for 4 years.

Question A bunch more questions from a noob

As title really, never flashed a custom ROM (at least not since my Galaxy S2) and while wait the 7 days to unlock the bootloader i'm trying to gather as much info as possible. So here goes;
1) Whilst I wait for the bootloader to unlock can I still turn off my phone and swap sim cards or will it reset the timer?
2) My Poco F3 is on MIUI Global 13.0.7.0 (SKHEUXM) - do I need to downgrade to 13.0.3.0 as per the instructions here?
3) The instructions for installing Crdroid lists an optional step for installing "DFE" but I cant seem to find out what DFE actually is.
4) Is it important to know if my phone has an A/B partition system and if it is how do I check for it?
5) After installing Magisk what other modules/tools/apps do I need to ensure Google Pay/Wallet will work as it seems a recent update has made it harder to fix.
6) Are there any bits of advice you can give for a avoiding a bootloop and/or bricked phone situation? Are there any common mistakes people make leading to a bootloop or bricked phone?
I think that's everything for now
Thanks

Goooober said:
As title really, never flashed a custom ROM (at least not since my Galaxy S2) and while wait the 7 days to unlock the bootloader i'm trying to gather as much info as possible. So here goes;
1) Whilst I wait for the bootloader to unlock can I still turn off my phone and swap sim cards or will it reset the timer?
2) My Poco F3 is on MIUI Global 13.0.7.0 (SKHEUXM) - do I need to downgrade to 13.0.3.0 as per the instructions here?
3) The instructions for installing Crdroid lists an optional step for installing "DFE" but I cant seem to find out what DFE actually is.
4) Is it important to know if my phone has an A/B partition system and if it is how do I check for it?
5) After installing Magisk what other modules/tools/apps do I need to ensure Google Pay/Wallet will work as it seems a recent update has made it harder to fix.
6) Are there any bits of advice you can give for a avoiding a bootloop and/or bricked phone situation? Are there any common mistakes people make leading to a bootloop or bricked phone?
I think that's everything for now
Thanks
Click to expand...
Click to collapse
1) Yes.
2) No, 13.0.3.0 is the required minimum, you can always use higher.
3) It disables forced encryption.
4) Poco F3 is A/B.
5) If any issues arise, you can always hide magisk and use safetynet fix.
6) When people don't follow installation instructions properly.

Dfe is disable force encryption but i dont think it works for android 12 so no need to flash it

ApexPrime said:
Dfe is disable force encryption but i dont think it works for android 12 so no need to flash it
Click to expand...
Click to collapse
It works, with DFE you can flash files from internal storage in twrp. But it also compromises phone security, so it's recommended not to use it.

If my phone is A/B do i have to do anything different when i flash Crdroid in TWRP?

Goooober said:
If my phone is A/B do i have to do anything different when i flash Crdroid in TWRP?
Click to expand...
Click to collapse
Almost all modern phones now ship with A/B partitions. So no, just follow the instructions given by the rom developer.

1. I unfortunately can't answer.
2. I wouldn't, 13.0.3 to 13.0.7 is very minor
3. DFE = Disable-Force-Encrypt = Android by default is encrypted.
DFE.zip removes the Boot-argument responsible for encrypting the Userdata-partition on the first boot, located in /vendor/etc/fstab
4. Poco F3 has an A/B-Partitionlayout. Most phones released with ~Android 10+ have A/B.
5. Personally, with the recent change, I tried many things to get GPay to work, got fed up with the Cat & Mouse Game with Google, and locked my BL.
6. If you flash using Fastboot Mode and the Flash aborts during a Partition-flash, don't reboot your phone, because otherwise your phone may never reboot back into Fastboot etc, and only show a Black screen.
ApexPrime said:
Dfe is disable force encryption but i dont think it works for android 12 so no need to flash it
Click to expand...
Click to collapse
It works on Android 12.
Goooober said:
If my phone is A/B do i have to do anything different when i flash Crdroid in TWRP?
Click to expand...
Click to collapse
No difference.
Further Notes about DFE:
If you don't use DFE before First Boot, userdata-partition gets encrypted, which means, beyond that, only TWRP SKKK will be able to access the userdata-partition.
If you decide to flash DFE once, you must flash it directly after every Update in TWRP, otherwise your phone may bootloop. At least that was the case for me! Before an update I decided I want my storage encrypted, but I got a bootloop. ^^
I wouldn't use DFE. Just leave it encrypted.

cyanGalaxy said:
5. Personally, with the recent change, I tried many things to get GPay to work, got fed up with the Cat & Mouse Game with Google, and locked my BL.
Click to expand...
Click to collapse
If you lock your bootloader after flashing a custom ROM does the custom ROM still work as intended or do you have to go back to stock?

Goooober said:
If you lock your bootloader after flashing a custom ROM does the custom ROM still work as intended or do you have to go back to stock?
Click to expand...
Click to collapse
Your phone will bootloop if you do that, because locked bootloader prevents custom roms from starting, thus it can only be used on stock roms.

Goooober said:
If you lock your bootloader after flashing a custom ROM does the custom ROM still work as intended or do you have to go back to stock?
Click to expand...
Click to collapse
No, I don't use a Custom ROM anymore. I'm back to Stock ROM, MIUI 13.0.7 for Europe.
Don't lock the BL with a Custom ROM. Only the Official ROM. Otherwise you risk hardbricking your phone.