Bricked Google Pixel 4a 5G (.mbn file needed)

[x-fox]

Hello all,
today, i tried to downgrade from Android 12 to Android 11. I have followed this official guide: https://developers.google.com/android/images#bramble

I unlocked bootloader and did the flash-all command but the proccess stoped here and phone didnt restart. I realized i downloaded wrong firmware - for google Pixel 4a (non 5G version). Phone is now bricked and i have only one choice - flash the eMMC memory through Qualcomm Flash tool (GPST/QFIL). But i need the correct firehose file for the phone model - file named like prog_emmc_firehose_8936.mbn. I cant get it anywhere for pixel 4a 5G. So my phone is now just paperweight.

I have read simmilar stories from Pixel 3 users after they did OTA updates.

Does anyone please have the correct .mbn file for Pixel 4a 5G or know how to get it from working phone?

Can somebody help me please? Is there any other solution other than getting new phone? Thank you all for support!

 

[bellatrixue]

Are you able to fastboot. If you are open the flashall and run the command by itself. Would that work. I think if you flash radio again over it. Should be ok

 

[x-fox]

Are you able to fastboot. If you are open the flashall and run the command by itself. Would that work. I think if you flash radio again over it. Should be ok

I can't get into fastboot. I'm stuck in Qualcomm download mode. I have second pixel 4a 5G, but I don't know how to extract the mbn file out of it.

 

[V0latyle]

Unfortunately Google does not make QPST files available for the Pixel series.

Wish they did, though.

 

[smokejumper76]

I wonder if OP could use Pixel 5a MBN (if it exists). 5a and 4a5g are near identical, and if his BL is unlocked it should just flash over. If OP can get any response from that, then dump factory flash over. Then,hopefully any wipes done to his modem/persist/fsg, etc partitions can be regenerated/recopied over rom the backup partitions from its interal normal operations of slot duplications or staging for upgrades/downgrades. I dunno.

 

[smokejumper76]

Collection of All Qualcomm EMMC Programmer file Download

Qualcomm Prog eMMC Firehose file Mbn loader is mainly used to repair Qualcomm phones in many scenarios. You can use it for Flashing Firmware,

droidsolution.com

?

 

[smokejumper76]

[GUIDE] How to dump and write back the storage on most of Qualcomm devices

This is a generic guide that could be suitable for many Qualcomm based devices, once the phone can be triggered to EDL mode. To make sure this guide will work as expect, following requirements are needed: - Know how to trigger the phone to EDL...

forum.xda-developers.com

I think if you can find a similar MBN it might work.

edit this looks interesting: https://android.stackexchange.com/questions/225868/need-help-unbricking-my-google-pixel-sailfish (diff device)

Driver Binaries for Nexus and Pixel Devices | Google Play services | Google Developers

developers.google.com

List of devices using Qualcomm Snapdragon systems on chips - Wikipedia

en.wikipedia.org

 

[sophomor1c]

Hey, do you solve it?
I've flashed my 4a_5g with a non 5G version flash-all , and it's now nothing more than a brick:< . Just as what you did here

 

[koreyb]

Unfortunately Google does not make QPST files available for the Pixel series.

Wish they did, though.

I've got one for the 4a (assuming you mean mbn?). I found it trying to find a method to unbrick mine.

I know this is dead, just figure it may help somebody else that might come across this from a search and to say mbn might be available for 5g version somewhere since this one is, or if they're looking for pixel 4a mbn.

Pixel 4a mbn

Edit: I see now .xml files are required as well, I assume those are the files you mean since I can't find them anywhere. I'm shocked there is no solution to unbrick a pixel. Sheesh.

 

[V0latyle]

I've got one for the 4a (assuming you mean mbn?). I found it trying to find a method to unbrick mine.

I know this is dead, just figure it may help somebody else that might come across this from a search and to say mbn might be available for 5g version somewhere since this one is, or if they're looking for pixel 4a mbn.

Pixel 4a mbn

Edit: I see now .xml files are required as well, I assume those are the files you mean since I can't find them anywhere. I'm shocked there is no solution to unbrick a pixel. Sheesh.

I wish I could say I agree, but the reality is manufacturing has evolved to the point that smartphones are all but disposable. It's cheaper for the manufacturer to just replace dead devices with new ones than it is for them to maintain aftermarket repair support.

 

[Bapr]

Anyone with a solution here?
I've flashed my 4a_5g with a non 5G version boot.img
My phone hard bricked with the bootloader unlocked and I need help on flashing firmware. My PC still detects it as Qualcomm HS-USB QDloader 9008.

 

[shubanali]

Anyone with a solution here?
I've flashed my 4a_5g with a non 5G version boot.img
My phone hard bricked with the bootloader unlocked and I need help on flashing firmware. My PC still detects it as Qualcomm HS-USB QDloader 9008.

any solution you find?

 

[alex_in_xda]

Bricked my Pixel 4A(5G), Need firehose file please. Tried the .mbn posted here with QFIL and i get sahara errror "...error: is_ack() 1227 invalid status field 41..."

 

[Bapr]

Im attaching some QualCom firehose programmers but not sure how that would help you