So I’ve just bought HI10 XR yesterday, and accidentally update firmware for H6 pen from here http://chuwi.mediafire.com/file/s293h143a6camg7/Phoenix-hid-update-G109D_20200324.zip/file
And suddenly my touchscreen were not accurate
Seller where I bought the tablet told me to reinstall windows from this source http://chuwi.mediafire.com/file/c93rfihlkpsisk5/ZW-JX-10-S101GWR100-GA86C-009-B.rar/file
But no change, my touchscreen still not accurate
Then i wondering, to think how easy to upgrade these firmware (and config), is there a way to rollback the firmware?