Connecting To Diag Mode

[still_no_name]

I asked the same question in the device specific thread, but nobody could help me, so I'm asking here


I was trying to unlock a LTE band on my Redmi 4 Prime and therefore I tried to connect my phone in diag mode.

I used the usual method and typed that:
adb shell

adb shell
su
setprop sys.usb.config diag,adb

I accepted the su popup, but my phone still shows up as a normal device in my device manager.

The next thing I tried was typing *#*#13491#*#* into the dialer. There was a popup aswell ("usb config setting")

The two options are "DIAG,SERIAL_SMD,RMNET_IPA,ADB" and "MTP,ADB". In the background there's a small popup saying "success".

But my phone still shows up normally and not as qualcomm hs-usb diagnostics as it should be.

Can anybody help me?

 

[Pertti Kosunen]

http://en.miui.com/forum.php?mod=viewthread&tid=453709&page=1#pid8862705

Try button method. Take usb cable off, press and hold vol + and -, put cable to computer and release buttons. Screen stays black, but there should come Qualcomm port to device manager.

 

[still_no_name]

Diag mode for QPST, not EDL^^

 

[still_no_name]

SOLVED

I installed the newest Weekly and it worked (I was previously on the Weekly, switched to the Stable with a clean install and it didn't work).

 

[Pertti Kosunen]

Diag mode for QPST, not EDL^^

Didn't read enough...

Did you get any bands unlocked?

 

[still_no_name]

Didn't read enough...

Did you get any bands unlocked?

Nope, the value sticks, but I don't get a connection via band 20. Probably there's simply no B20 where I live; testing it out in the next days.

 

[Pertti Kosunen]

No, band 20 need different antenna, you might get some other bands working.