Hello GOKUL,
May I know if these issues only happen in BIOS311? or in BIOS309 as well?
1.USB issue: may I know what kind of external device you connect to? and only data transfer is not working?
transferring media data or non-media data?
2.touchpad issue: please kindly check if the touchpad driver has been updated.
officialsite3.display issue: may I have a picture or video of it?
and does all these issue happened in Safe mode?
Thank you.