brother can u please share the link of 9.0.7 ota zip file...plz :)
I found it here https://www.getdroidtips.com/oxygenos-9-0-7-oneplus-6t/
Use server 1.
There is also one here:
Hello friend, finally what version did you come back to? You wanted to go back to 9.0.7, but this version does not appear in this thread (https://forum.xda-developers.com/oneplus-6t/how-to/tool-6t-msmdownloadtool-v4-0-oos-9-0-5-t3867448 -0-5-t38...
Worked like a charm!!! Thanks a lot stavros67 !!! :)