how to hard brick my phone to qhsusb_bulk mode??

[codGmer]

Hello,

i have flashed the wrong bootloader and now i my bootloader is oem_locked, and i have no OS.
I cannot flash anything. how to hard brick my phone to qhsusb_bulk mode so i can flash another bootloader to fix my problem?

Can i open and short my phone somehow to be able to get into the Qualcomm Download mode?

 

[codGmer]

 

[codGmer]

EDIT: mistake second post.

 

[nlpl931]

www(dot)droidsavvy(dot)com/unbrick-qualcomm-mobiles/
forums(dot)oneplus(dot)net/threads/fix-qhsusb_bulk-brick-on-the-opo.408420/
Check out these two pages, see if they can help you.
(I can't post outside links yet)

 

[codGmer]

www(dot)droidsavvy(dot)com/unbrick-qualcomm-mobiles/
forums(dot)oneplus(dot)net/threads/fix-qhsusb_bulk-brick-on-the-opo.408420/
Check out these two pages, see if they can help you.
(I can't post outside links yet)

That is the problem i don't know how to enter the QHSUSB_BULK mode on my phone because i can only accesss fastboot

 

[nlpl931]

Have you tried erasing about, modem, persist... partitions, and then flashing the appropriate images?

 

[codGmer]

Have you tried erasing about, modem, persist... partitions, and then flashing the appropriate images?

i cannot im affraid. Bootloader is locked, and i cannot unlock it.

When i try to unlock it says that i need to enable oem unlock but i have no android installed..

 

[nlpl931]

Actually it's not qhsusb_bulk mode that you need, you need QDloader mode which can be accessed through the qhsusb_bulk mode. If you run Windows,
#1. CMD(admin)
#2. bcdedit.exe -set load options
DDISABLE_INTEGRITY_CHECKS
bcdedit.exe -TESTSIGNING ON
#3. Reboot your computer keeping​ your phone connected to the computer
#4. On booting go to device manager
#5. You should see a new device entry with QHSUSB_BULK under Qualcomm devices(or any other Qualcomm entry)
#6. This is the QHSUSB_BULK mode that you can use to get into QDloader mode using appropriate drivers, as in the links I posted.
I'll look for more info, if I can help you?

---------- Post added at 12:11 AM ---------- Previous post was at 12:09 AM ----------

i cannot im affraid. Bootloader is locked, and i cannot unlock it.

When i try to unlock it says that i need to enable oem unlock but i have no android installed..

Try going through the process of unlocking bootloader....and I have a feeling that it will work, since you don't need to boot your phone for unlocking the bootloader. You can find guides for that....

 

[codGmer]

Actually it's not qhsusb_bulk mode that you need, you need QDloader mode which can be accessed through the qhsusb_bulk mode. If you run Windows,
#1. CMD(admin)
#2. bcdedit.exe -set load options
DDISABLE_INTEGRITY_CHECKS
bcdedit.exe -TESTSIGNING ON
#3. Reboot your computer keeping​ your phone connected to the computer
#4. On booting go to device manager
#5. You should see a new device entry with QHSUSB_BULK under Qualcomm devices(or any other Qualcomm entry)
#6. This is the QHSUSB_BULK mode that you can use to get into QDloader mode using appropriate drivers, as in the links I posted.
I'll look for more info, if I can help you?

---------- Post added at 12:11 AM ---------- Previous post was at 12:09 AM ----------



Try going through the process of unlocking bootloader....and I have a feeling that it will work, since you don't need to boot your phone for unlocking the bootloader. You can find guides for that....

ill try the steps. But the unlocking is not going to work because the first step is use

fastboot oem get_unlock_data

returns this:

so i cannot unlock my phone by the official way.

 

[nlpl931]

Then I guess you will need to jump through all those hoops...

 

[codGmer]

Then I guess you will need to jump through all those hoops...

What hoops? Those steps?

 

[codGmer]

#5. You should see a new device entry with QHSUSB_BULK under Qualcomm devices(or any other Qualcomm entry)

none of those show up, because i can only boot into fastboot not the black screen with flashing light.

 

[jalbarran]

Did you manage to fix it?

Did you manage to get your phone fixed? Mine is doing the same thing you said, I can not flash anything, and the "qualcomm unbrick" guides do not work for me, I dont see any Qualcom Loader in my Devices Manager, but I do see an Android Device when I plug it to my pc.

I can only get to fastboot mode, can not flash anything, my bootloader is locked, and it trhows the same error (read datablock error) when I try to unlock it.

Thanks in advance

 

[david_7]

same situation

Did you manage to get your phone fixed? Mine is doing the same thing you said, I can not flash anything, and the "qualcomm unbrick" guides do not work for me, I dont see any Qualcom Loader in my Devices Manager, but I do see an Android Device when I plug it to my pc.

I can only get to fastboot mode, can not flash anything, my bootloader is locked, and it trhows the same error (read datablock error) when I try to unlock it.

Thanks in advance

Could you solve the problem friend? I am also in that situation, greetings

 

[DrDexter]

Try to choose QCOM mode in a bootloader

 

[HeethJain21]

I too had the same problem and solved it.

You can't reboot into bootloader so can't flash stock firmware. I had the same problem and was able to solve it using few tutorials.

Here is a youtube video to solve this problem: https://www.youtube.com/watch?v=m2NqpY6X-X4
Watch the entire video. He had a proper running device and then purposely bricked his device to bring into the same state as your device.
Then he solved it.

Here is the xda thread that was used to create the above video: https://forum.xda-developers.com/moto-g4-plus/help/solved-unbrick-hard-bricked-dead-t3585016

The above video was made using this xda thread and I am not the owner of the video or the thread.
I would suggest watch the video and follow it as its more continent.


Note: there was a step in the above mentioned thread which was to be done. I did it and faced problem (the computer then didn't even recognize the device as qhsusb_bulk and showed "usb device not recognized"). Had to reset my pc and then skipped that step. That step is also skipped in he youtube video.

These are the two lines which I skipped writing in cmd and it worked:
bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS
bcdedit -set TESTSIGNING ON

---------- Post added at 08:34 AM ---------- Previous post was at 08:28 AM ----------

Did you manage to get your phone fixed? Mine is doing the same thing you said, I can not flash anything, and the "qualcomm unbrick" guides do not work for me, I dont see any Qualcom Loader in my Devices Manager, but I do see an Android Device when I plug it to my pc.

I can only get to fastboot mode, can not flash anything, my bootloader is locked, and it trhows the same error (read datablock error) when I try to unlock it.

Thanks in advance

Did you try unlocking the bootloader? If you are able to do that then you will be able to flash. I don't know why device is unable to flash stock firmware with locked bootloader

 

[jalbarran]

Could you solve the problem friend? I am also in that situation, greetings

I had to buy another phone! I just couldn't fix it in any way.

I even took it to a guy who works fixing phones, and he said it had the motherboard bricked! And there's no solution for that, other than buying another board (expensive!!)