Mi4c Android 5.1.1 To 7.0


Nov 22, 2015
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ok...
PS C:\adb> fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.049s]
i have TWRP 3.1.1.0 installed

does that mean that my bootloader is locked and i cant flash 6.12.22
do i need to unlock first?
/ im pretty sure i have rooted phone. why "deice tampered" is faulse?
Yes your bootloader is locked ...unlock it via Official unlock tool...but how did you install TWRP if the bootloader is locked ? Use the unlock tool and check the status again ....
Sent from my Mi-4c using Tapatalk
 
Last edited:
Jan 12, 2018
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Thanks, so the important step I was missing seems to be the official way of unlocking the bootloader. I also tried flashing from 7.2.9 to miui 9 (7.9.2) but that didn't work so it was probably the bootloader.
ok
I tried to follow the instructions given in post 170 but after step 5 the phone wont boot. Stuck at the MI logo for over 30 minutes. The bootloader is also blocked now when checking in fastboot.
i have same problem.
after flashing 7.2.9 step 5 stuck to mi logo.. No boot to system.
bootloader is locked
trying to unlock with unlock tool and result is:
veryfying device-OK
unlocking - NO "Current account cant unlock this device"
2. i cant flash TWRP via fastboot- error "Partition flashing is not allowed""

/before 3 days i unlock bootloader officialy way before starting post 170 procedure of upgrading/
What to do?
pls help with exact steps
 
Feb 1, 2018
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ok


i have same problem.
after flashing 7.2.9 step 5 stuck to mi logo.. No boot to system.
bootloader is locked
trying to unlock with unlock tool and result is:
veryfying device-OK
unlocking - NO "Current account cant unlock this device"
2. i cant flash TWRP via fastboot- error "Partition flashing is not allowed""

/before 3 days i unlock bootloader officialy way before starting post 170 procedure of upgrading/
What to do?
pls help with exact steps
Hello!

I have the same problem as you and I do not know how to solve it. I can only enter fastboot mode and I can not unlock the bootloader even if I have permissions.

Have you found the solution ?.

If you have any ideas, it would be very helpful.

Thank you
 
Apr 28, 2015
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From latest beta xiaomi.eu 6.12.22 I update to first android 7 xiaomi.eu 7.2.9 the bootloader locked. Now no twrp. Mi unlock stuck on 99% current account cannot unlock this device. I'm pretty sure I'm with the right account... Everything is prepared in pc, in mi cloud etc. I read I can unlock even if xiaomi.eu is the rom, is this right or I must install china beta rom??? What if with latest china beta locks EDL and I can not return to 5.1??? if something goes wrong


Sent from my MI 4W using Tapatalk
 
Last edited:
Nov 22, 2015
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From latest beta xiaomi.eu 6.12.22 I update to first android 7 xiaomi.eu 7.2.9 the bootloader locked. Now no twrp. Mi unlock stuck on 99% current account cannot unlock this device. I'm pretty sure I'm with the right account... Everything is prepared in pc, in mi cloud etc. I read I can unlock even if xiaomi.eu is the rom, is this right or I must install china beta rom??? What if with latest china beta locks EDL and I can not return to 5.1??? if something goes wrong


Sent from my MI 4W using Tapatalk
You can unlock it again on Xiaomi EU ROM...you must use the correct account that's on the phone ...
 
Apr 28, 2015
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You can unlock it again on Xiaomi EU ROM...you must use the correct account that's on the phone ...
Of course is the same account. USB debugging, enable OEM unlock... Everything is done. Except there is no Mi unlock status to pair device and account.

Sent from my MI 4W using Tapatalk
 
Feb 14, 2018
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For those that cannot unlock bootloader offcial way (user cannot unlock this device error message):

same problem as @Kockata - This user cannot unlock this device for 2 weeks now. I was able to go to miui9 though but max I can go is 7.9.14 - 7.9.21 gives me bootloop.

Those are steps to get to 7.9.14 xiaomi.eu

xiaomi.eu

1. Flash 5.1 android with unlocked bootloader
5.12.17 -> miFlash - libra_images_5.12.17_20151126.0000.5_5.1_cn -- (https: // androidfilehost.com/?fid=24438995911972289)
- go to fastboot
- use MiFlash to install 5.12.17
if there is partition not allowed error just run in cmd as administrator
fastboot oem edl
when flashing finishes restart phone and wait for phone to start to system than restart to fastboot

check if bootloader is unlocked
fastboot oem device-info

2. If it is unlocked install this twrp - found it in this thread (thanks @slimozis) it allows you to flash android 5 and 7 + works even after you get your bootloader locked. (https : // androidfilehost.com/?fid=673791459329071444)
fastboot flash recovery twrp-20180106-1033.img
fastboot boot twrp-20180106-1033.img

3. When in TWRP Copy
xiaomi.eu_multi_MI4c_7.2.9_v8-7.0.zip
xiaomi.eu_multi_MI4c_7.9.14_v9-7.0.zip
to internal Storage

now install from TWRP 7.2.9 - than wipe davik/cache (not sure if needed but I do it every time)
reboot to system

when phone starts go to update app and reboot to recovery
now install 7.9.14 - wipe davik/cache
reboot to system

This is where I stopped. trying to install 7.9.21+ always ends up in bootloop. Anyone any ideas how to go further? Have locked bootloader and working TWRP 3.1.1

T.

PS. @mnikolce I installed all sort of fastboot dev roms and didn't get edl mode locked.
 
Last edited:
Likes: mnikolce
Apr 28, 2015
288
181
67
For those that cannot unlock bootloader offcial way (user cannot unlock this device error message):

same problem as @Kockata - This user cannot unlock this device for 2 weeks now. I was able to go to miui9 though but max I can go is 7.9.14 - 7.9.21 gives me bootloop.

Those are steps to get to 7.9.14 xiaomi.eu

xiaomi.eu

1. Flash 5.1 android with unlocked bootloader
5.12.17 -> miFlash - libra_images_5.12.17_20151126.0000.5_5.1_cn -- (https: // androidfilehost.com/?fid=24438995911972289)
- go to fastboot
- use MiFlash to install 5.12.17
if there is partition not allowed error just run in cmd as administrator
fastboot oem edl
when flashing finishes restart phone and wait for phone to start to system than restart to fastboot

check if bootloader is unlocked
fastboot oem device-info

2. If it is unlocked install this twrp - found it in this thread it allows you to flash android 5 and 7 + works even after you get your bootloader locked. (https : // androidfilehost.com/?fid=673791459329071444)
fastboot flash recovery twrp-20180106-1033.img
fastboot boot twrp-20180106-1033.img

3. When in TWRP Copy
xiaomi.eu_multi_MI4c_7.2.9_v8-7.0.zip
xiaomi.eu_multi_MI4c_7.9.14_v9-7.0.zip
to internal Storage

now install from TWRP 7.2.9 - than wipe davik/cache (not sure if needed but I do it every time)
reboot to system

when phone starts go to update app and reboot to recovery
now install 7.9.14 - wipe davik/cache
reboot to system

This is where I stopped. trying to install 7.9.21 always ends up in bootloop. Anyone any ideas how to go further? Have locked bootloader and working TWRP 3.1.1

T.

PS. @mnikolce I installed all sort of fastboot dev roms and didn't get edl mode locked.
I will try to flash latest china dev fastboot rom (android 7) then will try to unlock bootloader and flash twrp 3.1.1.0 > Xiaomi.eu 8.2.1, I have the permission to unlock, so we'll see...

Sent from my MI 4W using Tapatalk
 
Feb 14, 2018
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I will try to flash latest china dev fastboot rom (android 7) then will try to unlock bootloader and flash twrp 3.1.1.0 > Xiaomi.eu 8.2.1, I have the permission to unlock, so we'll see...

Sent from my MI 4W using Tapatalk
Tried that - same error in unlock tool at 99% account cannot unlock this device - but hope it works for you.
 
Mar 3, 2018
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I wonder is there any Mi4C working on 8.3.2. I cant unlock bl, i have a permission about 3 weeks. If i install android 7 for example 8.3.2 phone is in a bootloop. So i have still 6.12.22
 
Likes: mnikolce
Apr 28, 2015
288
181
67
I wonder is there any Mi4C working on 8.3.2. I cant unlock bl, i have a permission about 3 weeks. If i install android 7 for example 8.3.2 phone is in a bootloop. So i have still 6.12.22
There is but at someone who unlocked before. I quit searching for a solution, installes 8.2.1 china beta, installed playstore and this is how my friend will use it

Sent from my MI 4W using Tapatalk
 
Jan 14, 2016
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Try to use firmware

xiaomi.eu_multi_MI4c_V8.5.1.0.NXKCNED_v8-7.0.zip

This works updating directly from xiaomi.eu_multi_MI4c_7.2.9_v8-7.0.zip

I don't know what is the actual issue. Some versions seem to work while others don't.