[SOLVED] Unbrick with locked bootloader

Ultimatum99

Member
Apr 26, 2015
28
4
0
As the title reads, I am stuck in a bootloop I guess coming from uninstalling more system apps than was probably wise.

I tried to flash via Mi Flash but I get a "can't flash a locked phone" error.

I also tried to connect to Mi PC Suite on Fastboot but it doesn't recognize the phone as connected (although the PC itself does and Mi Flash did too).

What options do I have?

Much appreciated,

Ultimatum

SOLUTION:
  • Download latest Fastboot ROM and decompress
  • Download and install MiFlash
  • Open MiFlash
  • Shut down the phone
  • Power on with Power + Vol Up.
  • Download Mode
  • Connect phone to computer, let it install the drivers if necessary
  • Refresh MiFlash, phone should show up (for me, Device showed as COM 10)
  • Browse the ROM
  • Tick Flash all except data and storage
  • Advanced > clear nvflash_all.bat
  • Flash
  • Enjoy!
Credit goes to Robertmvp
 
Last edited:
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Ultimatum99

Member
Apr 26, 2015
28
4
0
I am using Windows 10 64 bit. Moreover, I have installed ADB drivers separately (although these seem to come with the Mi Flash utility too).
I think it's intended behavior not to be able to flash via Fastboot with the bootloader locked? I was hoping to be able to restore via Mi PC Suite but it can't seem to see the phone, although the computer does and Mi Flash does too.
 

Ultimatum99

Member
Apr 26, 2015
28
4
0
"I also tried to connect to Mi PC Suite on Fastboot but it doesn't recognize the phone as connected (although the PC itself does and Mi Flash did too)."

For some reason, Mi PC Suite is not detecting the phone.
 

noersetiawan

Senior Member
Aug 15, 2013
124
31
0
Jakarta
SOLUTION:
  • Download latest Fastboot ROM and decompress
  • Download and install MiFlash
  • Open MiFlash
  • Shut down the phone
  • Power on with Power + Vol Up.
  • Download Mode
  • Connect phone to computer, let it install the drivers if necessary
  • Refresh MiFlash, phone should show up (for me, Device showed as COM 10)
  • Browse the ROM
  • Tick Flash all except data and storage
  • Advanced > clear nvflash_all.bat
  • Flash
  • Enjoy!
Credit goes to Robertmvp
Hello there,
I faced the same situation, but unfortunately in download mode, the phone is not detected in MiFlash, it detected as QHSUSB_BULK in Windows. Phone is detected while in fastboot and normal mode, but not in download mode. Do you have any idea what to do?
I expect this is a driver issue, but I can't figure out what.. I'm using Windows 64 bit, disabled driver signature enforcement, and installed all driver from MiFlash installation (there were 3 of driver notification prompt).
 

Ultimatum99

Member
Apr 26, 2015
28
4
0
Hello there,
I faced the same situation, but unfortunately in download mode, the phone is not detected in MiFlash, it detected as QHSUSB_BULK in Windows. Phone is detected while in fastboot and normal mode, but not in download mode. Do you have any idea what to do?
I expect this is a driver issue, but I can't figure out what.. I'm using Windows 64 bit, disabled driver signature enforcement, and installed all driver from MiFlash installation (there were 3 of driver notification prompt).
You need to update QHSUSB_BULK to the Qualcomm driver.

Device Manager > Select QHSUSB_BULK > Update Driver Software > Find manually the location of the driver, most likely: C:\Program Files (x86)\Xiaomi\MiPhone\Qualcomm\Driver

The driver should now appear as Qualcomm something, and Mi Flash should be able to see the phone.

Does this work?
 

noersetiawan

Senior Member
Aug 15, 2013
124
31
0
Jakarta
You need to update QHSUSB_BULK to the Qualcomm driver.

Device Manager > Select QHSUSB_BULK > Update Driver Software > Find manually the location of the driver, most likely: C:\Program Files (x86)\Xiaomi\MiPhone\Qualcomm\Driver

The driver should now appear as Qualcomm something, and Mi Flash should be able to see the phone.

Does this work?
Hi,
Thank you for the help. Unfortunately it doesn't work straight away, fortunately this leads me to the right direction, after I tried to point the driver to Xiaomi directory, a window dialog says the driver is 32 bit thus noninstallable for my PC, then I looked around for 64 bit driver for Qualcomm, installed it. I can finally install the driver but the phone is detected as unknown USB device, after removing it from Device Manager, restarted my PC, and tried again, it's still the same, on the third try it finally detected properly. It's working now, thank you very much.

Really weird why did MiFlash comes with noninstallable driver.
 
Last edited:

Garu8

Senior Member
Dec 20, 2013
65
11
0
New Delhi
As the title reads, I am stuck in a bootloop I guess coming from uninstalling more system apps than was probably wise.

I tried to flash via Mi Flash but I get a "can't flash a locked phone" error.

I also tried to connect to Mi PC Suite on Fastboot but it doesn't recognize the phone as connected (although the PC itself does and Mi Flash did too).

What options do I have?

Much appreciated,

Ultimatum

SOLUTION:
  • Download latest Fastboot ROM and decompress
  • Download and install MiFlash
  • Open MiFlash
  • Shut down the phone
  • Power on with Power + Vol Up.
  • Download Mode
  • Connect phone to computer, let it install the drivers if necessary
  • Refresh MiFlash, phone should show up (for me, Device showed as COM 10)
  • Browse the ROM
  • Tick Flash all except data and storage
  • Advanced > clear nvflash_all.bat
  • Flash
  • Enjoy!
Credit goes to Robertmvp
My 3s prime is locked bootloader, developer option off, oem disable thus not able to flash as device is in bootloop.
 

jokerpappu

Senior Member
Sep 24, 2013
1,704
589
113
kathmandu
My 3s prime is locked bootloader, developer option off, oem disable thus not able to flash as device is in bootloop.
you have to flash in edl mode not fastboot so google on how to take redmi 3s into edl mode then you can flash the rom in locked bootloader.in redmi 3 we use volume up and volume down and power button.press all three at the same time and it will take u to edl mode.screen becomes all black but if you plug it to ur computer and press refresh in miflash then it will show as com 10 or 20.thats for redmi 3.maybe redmi 3s has the same steps
 

Garu8

Senior Member
Dec 20, 2013
65
11
0
New Delhi
you have to flash in edl mode not fastboot so google on how to take redmi 3s into edl mode then you can flash the rom in locked bootloader.in redmi 3 we use volume up and volume down and power button.press all three at the same time and it will take u to edl mode.screen becomes all black but if you plug it to ur computer and press refresh in miflash then it will show as com 10 or 20.thats for redmi 3.maybe redmi 3s has the same steps
I have already tried to switch to edl mode using cmd with "fastboot oem edl" command but it enter bootloop. It happen because oem is locked alongwith usb debugging as I didn't unlock developer option.
 

jokerpappu

Senior Member
Sep 24, 2013
1,704
589
113
kathmandu
I have already tried to switch to edl mode using cmd with "fastboot oem edl" command but it enter bootloop. It happen because oem is locked alongwith usb debugging as I didn't unlock developer option.
then you should buy a usb cable which has a button in it which forces xiaomi devices to boot into edl mode.i forgot its name but i think you can google to find it
 

Garu8

Senior Member
Dec 20, 2013
65
11
0
New Delhi
then you should buy a usb cable which has a button in it which forces xiaomi deveot into edl mode.i forgot its name but i think you can google to find it
I believe you are talking about dfc a.k.a deep flash cable. I have searched alot I couldn't find it on any e-commerce site except alibaba which doesn't ship at my place. Can yousuggest any seller or website if you ever came across selling dfc cable? Deep flash method is the only last resort for my problem other than sending phone to service centre. Could you suggest any website to make dfc cable manually?;as I have searched youtube but non of the method mentioned in it seemed liable to me.
 

jokerpappu

Senior Member
Sep 24, 2013
1,704
589
113
kathmandu
I believe you are talking about dfc a.k.a deep flash cable. I have searched alot I couldn't find it on any e-commerce site except alibaba which doesn't ship at my place. Can yousuggest any seller or website if you ever came across selling dfc cable? Deep flash method is the only last resort for my problem other than sending phone to service centre. Could you suggest any website to make dfc cable manually?;as I have searched youtube but non of the method mentioned in it seemed liable to me.
i saw it on ebay also.i think that seller will ship worldwide to any country.

here is the link

http://www.ebay.com/sch/i.html?_fro...le.TRS0&_nkw=xiaomi+deep+flash+cable&_sacat=0
 

james1089

Senior Member
Jan 14, 2010
1,909
399
0
blackpool
You don't need deep flash cable use button combo to put in edl mode. From device manager update driver for QHSUSB_BULK. \After that reboot pc with driver signature disabled, then open mi flash and phone should be recognised. Just found the thread I used to remove vendor rom.
http://en.miui.com/thread-254606-1-1.html

JUST MAKE SURE YOU DOWNLOAD THE ROM FOR YOUR DEVICE!:crying:
 
Last edited:

Garu8

Senior Member
Dec 20, 2013
65
11
0
New Delhi
You don't need deep flash cable use button combo to put in edl mode. From device manager update driver for QHSUSB_BULK. \After that reboot pc with driver signature disabled, then open mi flash and phone should be recognised. Just found the thread I used to remove vendor rom.
http://en.miui.com/thread-254606-1-1.html

JUST MAKE SURE YOU DOWNLOAD THE ROM FOR YOUR DEVICE!:crying:
As I have already said edl mode won't work since developers option was not activated as edl requires oem activated. I had already tried all the methods.
By the way thanks to u all at xda as I have successfully flashed new rom using deep flash cable method...
 
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Novice12

New member
Sep 10, 2017
1
0
0
Nexus 10 rooted in a bootloop

Hi folks! I'm a newbie with this stuffs so I'll do my best to explain the issue. I've recently rooted my Nexus 10 with Nexus root toolkit 2.1.9( I believe). All was fine until I turn it off and back on. Now I'm in a bootloop. I could use the Unroot+flash command but my windows 7 won't detect the device. It only detect it when my tablet is connected and turn off. In that case shows as MTP. Can anyone help me reinstalling the driver or else? Thank you
 

krasCGQ

Recognized Contributor
Apr 13, 2015
5,433
4,934
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Kendari
kud.my.id
Hi folks! I'm a newbie with this stuffs so I'll do my best to explain the issue. I've recently rooted my Nexus 10 with Nexus root toolkit 2.1.9( I believe). All was fine until I turn it off and back on. Now I'm in a bootloop. I could use the Unroot+flash command but my windows 7 won't detect the device. It only detect it when my tablet is connected and turn off. In that case shows as MTP. Can anyone help me reinstalling the driver or else? Thank you
Hi,
This is Redmi 3 section. The correct section for your device is here. Please explain your issue there. Good luck!

Sent from my Redmi 3 using XDA Labs
 

ASP007

Member
May 10, 2014
6
0
0
Unbrick Xiaomi Redmi 3s prime with unlocked boot loader

Hi all,

I've a Xiaomi redmi 3s prime with rooted and unlocked bootloader. I tried unrooting from SuperSu and the phone is in bootloop now. I had TWRP recovery mod installed and a nandroid back up in my phone. But, I can't even enter the recovery mode now. Fast boot is working. Please help me to unbrick it without losing the data or recover the nandroid back up at least.

Thanks!!
 

shayan4shayan

Senior Member
May 21, 2013
70
5
0
As the title reads, I am stuck in a bootloop I guess coming from uninstalling more system apps than was probably wise.

I tried to flash via Mi Flash but I get a "can't flash a locked phone" error.

I also tried to connect to Mi PC Suite on Fastboot but it doesn't recognize the phone as connected (although the PC itself does and Mi Flash did too).

What options do I have?

Much appreciated,

Ultimatum

SOLUTION:
  • Download latest Fastboot ROM and decompress
  • Download and install MiFlash
  • Open MiFlash
  • Shut down the phone
  • Power on with Power + Vol Up.
  • Download Mode
  • Connect phone to computer, let it install the drivers if necessary
  • Refresh MiFlash, phone should show up (for me, Device showed as COM 10)
  • Browse the ROM
  • Tick Flash all except data and storage
  • Advanced > clear nvflash_all.bat
  • Flash
  • Enjoy!
Credit goes to Robertmvp
look
you got bootloop and its very very different from brick

update your title