New method to unstuck on EDL mode with Qualcomm HS-USB Diagnostics 900E

[Mrxyzl]

Well, today, I flash a wrong firmware on my RN3 pro RR 5.8.3, unlock unofficially and get brick. No fastboot, No recovery, long press power button only brought splash screen for a second then screen goes black again. When stick to PC only red led blinking, on Device manager show Qualcomm HS-USB Diagnostics 900E so no Miflash.
Okay after a whole morning, I found this method here http://en.miui.com/forum.php?mod=viewthread&tid=266598&highlight=900e.. I tried method 3 from that thread because the other are just unreadable. So here is the step:
1. Plug the phone to PC - Red led blinking
2. Hold both 3 button: Volume up, Volume Down, Power button for around 10s. Phone vibrate and show the Linux Penguin Icon (Qualcom mode)
3. Check in Device manager/Port , it show other (unfortunately not the 9008 as in the thread). I check with Miflash Phone is recognize but i Cant flash any thing
4. SO i tried using this method here (step 4 ) https://forum.xda-developers.com/showpost.php?p=69613342&postcount=3 and get into EDL mode with 9008 port. Voila!

Optional
5. Then I flash this TWRP and unlock officially from here https://forum.xda-developers.com/redmi-note-3/how-to/unlock-unofficially-install-zcx-twrp-t3586778 and the beast is up again ! :highfive:

So i post this here to help anyone stuck in EDL mode and dont have a DFC or dont want to use test point method.
hope this help .

 

[miguelang611]

Thanks for sharing.
I already have deep flash cable (btw I made it myself, it is easy) and I have used it some times... But it is good if u don't have the cable!!
Regards!

 

[Mr.Gamer]

Thanks a lot for this small post, it saved me from throwing this phone out of the window.
I could update MIUI using fastboot EDL, weirdely enough you cannot update official MIUI without unlocking the bootloader... WTF xiaomi

 

[marko1242]

Saved my ass man thank you i got a real headache from all the failed attempts but u did the job.

 

[Saeedbtech]

my Redmi 4 no response. wat I do now.
when I connect usb cable to phone to pc it's show direct edl mode or Qualcomm Snapdragon 9008 is connected in port .
so what happened it?
wat I do now pls help me.