Cant unlock bootloader after 7.0 update - Xiaomi Mi 4C

Hi, i have following problem.
I have installed MIUI EU Rom with Android 5.1.1 with Root and unlocked bootloader.
With Titanium Backup i freeze some Mi Apps, like Mi Account
After that i installed newest Update of MIUI EU Rom with Android 7 with Update function, not with twrp. i lost root and my bootloader is locked.
I received the unlock code from xiaomi and want to unlock bootloader. But for that i have to link my device with my xiaomi account.
The problem is, that i cant unfreeze the mi account app, because i lost root
I found no other way, to unlock my device or get root.
Downgrade don't work, factory reset don't work, reboot to recovery don't work
Device shutdown and must be started manually every time. After Reboot it stays on current rom without any changes
Any idea how to unfreeze or reinstall my mi account app, link my device to xiaomi account or to unlock my device?

You have to erase all the data and reinstall the last build.
Then reconnect to your Miui account.

Kéno40 said:
You have to erase all the data and reinstall the last build.
Then reconnect to your Miui account.
Click to expand...
Click to collapse
But how can i do that?
I cant access recovery or flash things with fastboot
I cant flash a rom with Updater App. Phone restarts, shutdown und must be restartet manually. Rom not changes
When i try "factory reset" in settings, phone shuts down, same thing. Nothing changed
It seems, like revovery is not working anymore and i cant flash new one because bootloader is locked.
Is there an option to reset data by fastboot?
Does "fastboot erase userdata" work with locked bootloader?
And will it unfreeze "Mi Account", because its a system app, not a user app?

Mitools via fastboot. You'll have to erase all

Related

Downgrade

So I updated my FRD-L04 to the Nougat Beta, and while I was following the instructions and Flashesd the Update. For some reason I lost TWRP and cant boot into recovery, my bootloader is unlocked.....however in developer options OEM Unlock is grey out and i cant enable it.... So when ever i try to run a command through fastboot it says is not allow.... and when i try ti re-lock the bootloader i get FAILED (remote: root type is risk)... I try to roll back package from Huawei website but that also fails..... Now i dont know what to do.
I am in the same boat. Did the new beta via twrp. My usb debug was greyed out but i was able to to get it to turn on for short moments.
I have now lost twrp and now the phone wont even boot the the Android 7 beta os!
I have fastboot but when i try to fastboot flash system or cust they both fail. My bootloader is still unlocked tho.
edit: I downloaded the beta flashable zip and the update that is seperate. I took out the boot recovery cust and system from them and was able to flash them via fastboot. The phone now boots back to the android 7.0 beta. Phew!!!!!
Now to attempt downgrade to 6.0 adn get twrp back
You should look for a downgrade package
Since you have lost TWRP, I think you will have to reinstall it and root your device again.
DarkGuyver said:
Since you have lost TWRP, I think you will have to reinstall it and root your device again.
Click to expand...
Click to collapse
I tried thta multiple times, but when i flash recovery it says its not allow, again i think is because i can enable oem unlock on settings
You should look for a downgrade package
CronaMell said:
You should look for a downgrade package
Click to expand...
Click to collapse
Like I mention on my initial post I have already tried the downgrade package..but it does not work. I can't enable oem unlock since is grayed out ... my boot loader is unlock and I can't use the phone but NFC Bluetooth etc does not work.. I even tried to flash the downgrade package recovery and boot image through fast boot but it's not allow since I can't enable oem unlock...
I'll research a bit and see If I can find something

What happens if I disable OEM-Unlock in developer settings?

I already unlocked the bootloader, happens anything if I turn off oem unlock in developer settings or will the bootloader relock?
Maik_ said:
I already unlocked the bootloader, happens anything if I turn off oem unlock in developer settings or will the bootloader relock?
Click to expand...
Click to collapse
Turned it off once by accident but turned on again.. Nothing changed
I don't think anything changes unless u relock it via fastboot, which at that point as long as u can boot back into the OS, u can always unlock it again, relocking bootloader will format ur data and u will no long be rooted or have twrp installed
locking your bootloader with root etc installed can cause major problems so before doing that you should flash a stock firmware otherwise you will be locked out
Why would you want to do this? There is no benefit to it if you plan to stay rooted.
Need to find something to do. You bored
iElvis said:
Why would you want to do this? There is no benefit to it if you plan to stay rooted.
Click to expand...
Click to collapse
I want to disable developer options, but if I do that OEM-Unlock automatically turns off and I don't want to reboot because I dont want that I lock myself out.
Your cat will get knock up..........again!
Maik_ said:
I want to disable developer options, but if I do that OEM-Unlock automatically turns off and I don't want to reboot because I dont want that I lock myself out.
Click to expand...
Click to collapse
Just turning off Developer Options won't relock your bootloader. You can only do that manually in fastboot. But you'll also lose USB debugging, which means adb won't work anymore in case something goes wrong. (But leaving USB debugging on all the time isn't the best idea anyway.)
Hello everyone
I think I did that mistake
I have twrp installed on my phone Samsung SM-G532F . my phone was working just fine but I have locked the oem for no reason .
now when I turn off the device and tried to turn it on it shows { Custom binary blocked by FRP. (boot. img) }
and when I open recovery mode it shows { Custom binary blocked by FRP. (recovery. img) }
the download mode is working and shows that the FRP lock is on .
I tried to flash the stock recovery with odin but since the FRP is locked it failed .
the adb is not working because the device cannot boot , even the battery symbol when I plug my phone with a charger is not displayed and shows the error { Custom binary blocked by FRP. (boot. img) }
any ideas will help a lot .
omer123137 said:
Hello everyone
I think I did that mistake
I have twrp installed on my phone Samsung SM-G532F . my phone was working just fine but I have locked the oem for no reason .
now when I turn off the device and tried to turn it on it shows { Custom binary blocked by FRP. (boot. img) }
and when I open recovery mode it shows { Custom binary blocked by FRP. (recovery. img) }
the download mode is working and shows that the FRP lock is on .
I tried to flash the stock recovery with odin but since the FRP is locked it failed .
the adb is not working because the device cannot boot , even the battery symbol when I plug my phone with a charger is not displayed and shows the error { Custom binary blocked by FRP. (boot. img) }
any ideas will help a lot .
Click to expand...
Click to collapse
You cannot boot with a custom recovery and a locked bootloader. As to how to fix this, you need to ask in the Samsung forums. This is for OnePlus 6.
If you have a oneplus look in the forum for msmdownloadtool and follow the steps, you can revive your phone.
If your phone its a samsung, search in samsung forums for a tool to unbrick your phone.
iElvis said:
You cannot boot with a custom recovery and a locked bootloader. As to how to fix this, you need to ask in the Samsung forums. This is for OnePlus 6.
Click to expand...
Click to collapse
I was finally able to solve this issue with flashing the official firmware with odin . now I will never touch the oem unlock button ever again :laugh: . but thank you for your reply .
---------- Post added at 07:27 PM ---------- Previous post was at 07:22 PM ----------
Toni Moon said:
If you have a oneplus look in the forum for msmdownloadtool and follow the steps, you can revive your phone.
If your phone its a samsung, search in samsung forums for a tool to unbrick your phone.
Click to expand...
Click to collapse
I downloaded and flashed the official firmware with odin and it worked . thanks for the reply
I did this once on my OnePlus X, disabled oem unlocking in developer options. phone and recovery worked fine. I did a backup. Flashed a new rom to test it. The rom had AOSP recovery in the zip, overwriting twrp (opx has separate recovery partition). I flashed gapps affter the rom and the setup wizard was crashing so I could not boot in the home screen. Tried TWRP, its gone. Tried to boot to twrp via fastboot, oem locked. Had to do hard brick reset. Backup and data, gone.
TLDR, you should leave it on, unless you are on stock firmware.
After flash a rom you must flash twrp recovery again, restart in recovery and flash gapps and magisk
First of all you have to flash combination file associated with your device model through ap slot of odin.
Then your phone will turn on and you can access settings through which you can turn on oem unlock.
Then you can install your desired rom into your device
Sinankhan.official said:
First of all you have to flash combination file associated with your device model through ap slot of odin.
Then your phone will turn on and you can access settings through which you can turn on oem unlock.
Then you can install your desired rom into your device
Click to expand...
Click to collapse
This isn't a Samsung device.
Maik_ said:
I already unlocked the bootloader, happens anything if I turn off oem unlock in developer settings or will the bootloader relock?
Click to expand...
Click to collapse
I also accidentally turned off oem in rooted phone , Does my bootloader locked or I can safely reboot
I restored the stock firmware using Odin, but now I see that the bootloader is still unlocked.
When try to lock it again the system says: "If OEM unlock is turned off, your phone will be reset to factory default settings after restart. This will erase all of your data... " etc.
My question is: will the firmware be still in place? I don't mind everything being wiped, because most of it will be restored anyway when I login to Google and Samsung again.
SamarSS123 said:
I also accidentally turned off oem in rooted phone , Does my bootloader locked or I can safely reboot
Click to expand...
Click to collapse
No

Find device storage corrupted

i unlocked my Note 7 pro's bootloader using the official unlocking method...flashed and tried couple of custom roms and wanted to get back to stock miui cause netflix wasn't working on unlocked bootloader...so flashed miui 10.3.13.0 latest rom using mi flash tool and clicked the button called "clean all and lock"...when booted up a mesaage is showing "Find device storage corrupted.Your device is unsafe now"...it's not showing me the screen where i used to give my mi account password(this device is associated with an existing mi account).......now i have to enter mi account password every time i reboot my phone and that message is poping up on bottom of the screen...no other hardware issue though.
try resetting from official recovery as bootloader is locked.
gursewak.10 said:
try resetting from official recovery as bootloader is locked.
Click to expand...
Click to collapse
tried it but the same issue exists.....

SYSTEM HAS BEEN DESTROYED Urgent Help needed!!!!!

I was using Pixel expierence rom but then i decided to lock my bootloader again so i was flashing redmi note 7 pro through mi flash tool but was laptop got off between the process and after that i booted my phone again into bootloader mode and unlocked the bootloader and tried flashing the rom through mi flash tool but after flashing completed it boots and says "SYSTEM HAS BEEN DESTROYED"
I tried almost everything but not finding solution to solve it
if i unlock the bootloader phone boots normally but when i lock bootloader i get the SYSTEM HAS BEEN DESTROYED message
help me in Locking my bootloader with Stock Miui rom
twrp bootloader accessible
mrstarnge said:
I was using Pixel expierence rom but then i decided to lock my bootloader again so i was flashing redmi note 7 pro through mi flash tool but was laptop got off between the process and after that i booted my phone again into bootloader mode and unlocked the bootloader and tried flashing the rom through mi flash tool but after flashing completed it boots and says "SYSTEM HAS BEEN DESTROYED"
I tried almost everything but not finding solution to solve it
if i unlock the bootloader phone boots normally but when i lock bootloader i get the SYSTEM HAS BEEN DESTROYED message
help me in Locking my bootloader with Stock Miui rom
twrp bootloader accessible
Click to expand...
Click to collapse
Boot into Fastboot mode and flash MIUI using the Mi Flash tool (make sure to untick the lock bootloader sign)
Naveenthemi said:
Boot into Fastboot mode and flash MIUI using the Mi Flash tool (make sure to untick the lock bootloader sign)
Click to expand...
Click to collapse
i did that phone works fine but whats the point if i cant lock my bootloader
mrstarnge said:
I was using Pixel expierence rom but then i decided to lock my bootloader again so i was flashing redmi note 7 pro through mi flash tool but was laptop got off between the process and after that i booted my phone again into bootloader mode and unlocked the bootloader and tried flashing the rom through mi flash tool but after flashing completed it boots and says "SYSTEM HAS BEEN DESTROYED"
I tried almost everything but not finding solution to solve it
if i unlock the bootloader phone boots normally but when i lock bootloader i get the SYSTEM HAS BEEN DESTROYED message
help me in Locking my bootloader with Stock Miui rom
twrp bootloader accessible
Click to expand...
Click to collapse
I have two Redmi Note 7 Pro devices. (Global Devices - A.K.A Indian Variant)
first device is unlocked but no custom rom installed like ever
second device is unlocked with lots of custom rom history
While trying to relock my bootloader with MIFLASH (clean all and lock) and Global firmware 11.0.8
First device firmware flash worked perfectly and bootloader is set to lock state - (Widevine status is L1 )
Second device as stated in OP . Flashing success but device showing "SYSTEM HAS BEEN DESTROYED". If i unlock the bootloader of the device then it boots normally but device is in unlock state (widevine status L3)
I think some modifications might have happened to some system partitions which causes the VBMETA - SRCLIST check failure.
ANY DEVS PLEASE LOOKS INTO THIS ISSUE ...
Yeah someone out there I"m trying to relock bootloader bcoz to get access to my corporate mails , netflix HD content and GPAY
(On other hand magisk is having CTS profile check failure as google changed the approach to check the unmodified system)
mrstarnge said:
i did that phone works fine but whats the point if i cant lock my bootloader
Click to expand...
Click to collapse
If you wanna lock your bootloader then don't untick the option, use MiFlash along with lock devide option. That should give you stock ROM and a locked bootloader, but don't try this on a custom ROM.
Naveenthemi said:
If you wanna lock your bootloader then don't untick the option, use MiFlash along with lock devide option. That should give you stock ROM and a locked bootloader, but don't try this on a custom ROM.
Click to expand...
Click to collapse
Its common sense bro that i can only flash stock miui rom through miflash and i did that only with clean all and lock option but it hasnt worked yet
Naveenthemi said:
If you wanna lock your bootloader then don't untick the option, use MiFlash along with lock devide option. That should give you stock ROM and a locked bootloader, but don't try this on a custom ROM.
Click to expand...
Click to collapse
There is no harm having unlocked bootloader with miui stock you still secured and still gets all updates pushed by Xiaomi.
I recently flashed rom miui by mi flash tool and with unlocked option on and as I started from fresh got latest update 11.8.0 hope so but you do one thing uninstall the mi flash tool and reinstall it then do the same steps again you will get successful
CHETAN9 said:
There is no harm having unlocked bootloader with miui stock you still secured and still gets all updates pushed by Xiaomi.
I recently flashed rom miui by mi flash tool and with unlocked option on and as I started from fresh got latest update 11.8.0 hope so but you do one thing uninstall the mi flash tool and reinstall it then do the same steps again you will get successful
Click to expand...
Click to collapse
Yeah never said there's a problem..just that if you try it on a custom rom it will brick the device..
CHETAN9 said:
There is no harm having unlocked bootloader with miui stock you still secured and still gets all updates pushed by Xiaomi.
I recently flashed rom miui by mi flash tool and with unlocked option on and as I started from fresh got latest update 11.8.0 hope so but you do one thing uninstall the mi flash tool and reinstall it then do the same steps again you will get successful
Click to expand...
Click to collapse
I tried it 100 times not worked
I'm still searching for a way....
BuGGy said:
I'm still searching for a way....
Click to expand...
Click to collapse
I have talked to some developers and they have said its happening to everybody due to some issue by Redmi side you cant rollback from anrdoid 10 custom rom to miui 11 android 9 based you have to wait till redmi releases miui 11 based on android 10 then you can lock the bootloader or you can use edl mode
Did you find any solution to this?
mrstarnge said:
I have talked to some developers and they have said its happening to everybody due to some issue by Redmi side you cant rollback from anrdoid 10 custom rom to miui 11 android 9 based you have to wait till redmi releases miui 11 based on android 10 then you can lock the bootloader or you can use edl mode
Click to expand...
Click to collapse
Even EDL mode isn't a solution.
One of my known violet user went to service center and they failed to revive the phone even from EDL flashing. At last they changed the mobo.
Hope this gets fixed after miui 12 with android 10 comes.
P.s : i lost all my hope of relocking the bootloader & i don't think so that android 10 update from Xiaomi will fix this.
Lets hope it gets fixed
I always use the fastboot method to restore original system. Works 100% of the time. It has scripts to flash stock without lock
mrstarnge said:
I have talked to some developers and they have said its happening to everybody due to some issue by Redmi side you cant rollback from anrdoid 10 custom rom to miui 11 android 9 based you have to wait till redmi releases miui 11 based on android 10 then you can lock the bootloader or you can use edl mode
Click to expand...
Click to collapse
may be it wont work.....I've tried to flash my mobile with stock flash file and have to unlock bootloader to boot my phone but the same process for my frnd phone worked sucessfully without unlocking the bootloader......but it aint work for me......!
does this mean that if i am running a android 9 pie custom rom i can relock the bootloader
BuGGy said:
Even EDL mode isn't a solution.
One of my known violet user went to service center and they failed to revive the phone even from EDL flashing. At last they changed the mobo.
Hope this gets fixed after miui 12 with android 10 comes.
P.s : i lost all my hope of relocking the bootloader & i don't think so that android 10 update from Xiaomi will fix this.
Click to expand...
Click to collapse
Well brother I ran into the same problem "System Destroyed" but with BL Locked, there's a way to fix it
check this out :
[ Fix ] System has been destroyed [ Bootloader Locked ]
Hello Folks !! I ran into this error "system has been destroyed" when I tried to flash Stock MIUI 12 using Mi Flash with "clean all and lock" option checked, it seems if you have ever flashed a custom Rom like Pixel UI etcetera on Violet there's...
forum.xda-developers.com
Mi 7 system has been destroyed what can I do

How can I install MIUI back my redmi 9a?

I had used miflash to reinstall it but didn't check it run "flash_all_lock.bat" and it lock again. I don't have the account to unlock it, what can I do?
just search - google/bing are your friends
SIMILAR PROBLEM
danielchang1109 said:
I had used miflash to reinstall it but didn't check it run "flash_all_lock.bat" and it lock again. I don't have the account to unlock it, what can I do?
Click to expand...
Click to collapse
if u have custom recovery just flash miui recovery rom after flash format data and reboot to system or maybe create new account and unlock with it?
account is pinned to device, so he won't be able to unlock the same device

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