Oxygen OS 11 - No PDC and QPST connection

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mxtuu222

Member
Dec 23, 2018
30
23
Hi,
After successful update to Android 11 on Oneplus 8 Pro, I cannot find the modem in PDC tool or QPST as before.

The device was described in Windows devices list as IN2012 without any drivers so I installed manually latest Qualcomm drivers and chose Android Modem 9020 which was recommended by some guys using beta. Unfortunately, I still cannot change modem settings via PDC.

I don't have a root on my phone and would like to stay that way.

Do you have any new guide for Android 11 how to acquire that functionality for changing modem in PDC? Thanks
 

Zayatoshi

Senior Member
Aug 25, 2014
318
72
FRANCE
Hi PDC does not detect my oneplus8 pro running android 11 .. everyone seems in this case, and no solution has been found yet

Envoyé de mon IN2023 en utilisant Tapatalk
 

xda9791

Member
Feb 7, 2020
15
3
That is true I have oneplus 8 pro IN2020, i used to have access to full-port switch and rndis,diag switch before oxygenos 11, now after updating to oxygenos 11, no longer i can access it my computer won't detect it anymore via PDC tool or QPST.
 

efex

Senior Member
Jul 15, 2008
601
211
Göteborg
OnePlus 8 Pro
OnePlus 9 Pro
Maybe this isn't what you're talking about, but works fine here (stable 11.0.0).
*#801# to enable full-port switch.

Edit: tested PDC, also working.

Edit2: Missed that no root part. I am rooted and have engineermode enabled, that would probably be the difference. :)
 
Last edited:

kazlow

Senior Member
Mar 9, 2008
103
8
Would you mind sharing how you got QPST working please? Mine only says (Phone Uknown) and if I open EFS explorer its empty.

i got qpst to work watching a french video but its useless for us in uae we need pdc to connect , simply changing the courier policy wont give us volte or enable 5g. i only had volte and 5g enabled on os 10 when i was able to use pdc . lost it all in beta 1 then beta 2 volte came back automatically then lost both again in beta 3
 

kar200

Senior Member
Mar 28, 2008
360
46
Dubai
i got qpst to work watching a french video but its useless for us in uae we need pdc to connect , simply changing the courier policy wont give us volte or enable 5g. i only had volte and 5g enabled on os 10 when i was able to use pdc . lost it all in beta 1 then beta 2 volte came back automatically then lost both again in beta 3


EDIT: I found the video if anyone else is interested. It's in french

https://www.youtube.com/watch?v=6DtH0-PZQMw
 
Last edited:

exthomeboy

Member
Apr 13, 2015
10
0
Thanks a lot ! it worked for me on IN2020 OS11 ! and i was able to replace the carrier policy file, Still Struggling with PDC full port switch access.

With this Video i was also able to activate 5G but to activate Volte is necessary to use PDC as i was not able to connect the Oneplus 8T (KB2003) with my PC.
Do you know another method to activate volte? Thanks
 

Zayatoshi

Senior Member
Aug 25, 2014
318
72
FRANCE

Zayatoshi

Senior Member
Aug 25, 2014
318
72
FRANCE
Absolutely not. The only solution to relock the bootloader is to use the MSM tool. This will cause data to be erased and the bootloader to be locked. Your Oneplus will be reset to factory configuration.
automatically manipulation to activate the volte and vowifi will be lost.
 

GetDiz

Member
Apr 5, 2015
19
3
Same for the IN2020 model that I am using.
Seems like Android 11 or OnePlus themselves are blocking the QPST port, and the only solution so far needs the device rooted.
https://forum.xda-developers.com/oneplus-8-pro/help/help-pdc-recognizing-phone-android-11-t4166849
I have a rooted device, running 11.0.1.1IN11BA
The mentioned method didn't work for me.
Volte and vowifi and 5g was working perfectly before that update.
Still can't get the phone to be recognized.
 

hadid90

Senior Member
Jan 2, 2010
215
12
i got qpst to work watching a french video but its useless for us in uae we need pdc to connect , simply changing the courier policy wont give us volte or enable 5g. i only had volte and 5g enabled on os 10 when i was able to use pdc . lost it all in beta 1 then beta 2 volte came back automatically then lost both again in beta 3

Hello sir

how to use PDC to enable 5G in UAE ?? can you link me to a guide for that ???
 

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