Hello,
The 110Hz FW is currently for 8K+ with serial number 206 and up.
If you failed to upgrade the 110Hz FW, and wish to revert back to 260FW, please don’t use the firmware located in Pitool folder.
Please kindly hit this link for the 260Hz FW.
If you met with any problems, please PM us.
Sincerely,
Quorra.Pimax