OnePlus 7 Pro stuck in EDL

[jahanzaiblohani]

Hello . I have OnePlus 7 pro I update it to android 12 and the next day something went wrong and my phone started an error Qualcomm crash dump something... Now it is stuck in EDL . Display none , power key And volume key works but keep booting in EDL even without connecting the USB cable . I flash the firmware with msm tool firmware flashed %100 but it didn't boot still in EDL .can someone guide me how to fix it

 

[jahanzaiblohani]

Can someone help!

 

[darksx]

Can someone help!

Hello,first thing i noticed is that msm tool finished with around 200 sec.i think that's not normal.I often use msm tool and every time finishes around over 300 sec.I see you have correct Qualcomm drivers.i'm not an expert but you must investigate a little bit more.good luck

 

[jahanzaiblohani]

Hello,first thing i noticed is that msm tool finished with around 200 sec.i think that's not normal.I often use msm tool and every time finishes around over 300 sec.I see you have correct Qualcomm drivers.i'm not an expert but you must investigate a little bit more.good luck

Drivers are correct and I was flashing it with USB 3.0 port .

 

[KyRol]

I would try older stock ROMs first. O+7pro have plenty of them regarding EDL/MSM mode.

Another thing are checksums. Try to check if your download was successfull by counting them from your side and by comparing what you have with provided download. It should match 1:1.

 

[jahanzaiblohani]

I would try older stock ROMs first. O+7pro have plenty of them regarding EDL/MSM mode.

Another thing are checksums. Try to check if your download was successfull by counting them from your side and by comparing what you have with provided download. It should match 1:1.

I have the old stock ROM which I flashed it in EDL but phone didn't boot when it is completed phone reboot too but not in normal mode in EDL again

 

[KyRol]

Most often people have bad experience with qualcomm drivers. So make sure that you have some released after 2020 year, as oneplus 7 pro was released in 2020 year. Another issue is related to usb 3.x, better avoid that and try USB 2.0 instead, most of people have best results with older interface of that kind. EDL is kind of old solution, so better to stay away with USB 3.x and use USB 2.0.

Have you got any idea your flash is successful in edl tool? Have you got clean results or warnings/errors?

To be honest with you, I have to use EDL too, because I did wrong upgrade. I used custom ROM instead of stock ROM. Now I have not access to fastboot nor adb via USB either.

try different EDL ROMs, I found 2 threads. one is here, second there. As almost nobody anserws our questions, I will let you know what I did if I do it successfully.

 

[KyRol]

Well, I discovered that I'm in pretty bad situation. In my case not only adb and fastboot does not works. It appears that EDL does not work either. Why? because I connected another oneplus phone over USB to PC and EDL mode was detected spot on. In case my o+7pro, well still same error as previously with adb/fastboot over USB. Something messed with USB on my phone at software side.

So I have to get motherboard get cheap. I do not thik that I can desolder flash or eMMC and revert that so easy.

Sorry Man, can not help you any
further. Turns out my issue is signifigantly other than yours.