Before proceeding with the software installation, please make sure that your projector software version is: V3.09 (Settings>About>Software version>"U0320-XXX" to check the software version)
Software Function Improvement Points:
① Solve UI interface problem ( WLAN keyboard "u" and "i" capitalization)
② Optimize keystone correction function
③ Add projector HDMI ARC/HDMI CEC function (for HDMI connect the soundbar, use the projector remote to control the soundbar on/off, and volume adjustments)
④ Manual focus improves adjustment accuracy
Step 1: Please prepare a USB flash drive, the format of the USB must be FAT 32 and the capacity of the USB must be more than 4G;
Note: The USB flash drive is empty and cannot have other files.
Step 2: The installation package V3.18, please download the file from the link:
Step 3: Copy the "MstarUpgrade9255BGA.bin" upgrade file to the root drive of the USB flash drive;
Step 4: Power on the projector and insert the USB flash drive into the USB port of the projector, it will pop up a prompt "The upgrade file is detected, and the system will restart the upgrade";
Note: Power on the projector and make sure the projector recognizes the USB flash drive;
Step 5: The projector will be restarted and the upgrade process will be displayed as below;
Step 6: Please don't power off the projector during the upgrade process, the projector will automatically restart after the upgrade is completed. And then use the remote control to click on Settings>About>Software version>"U0320-V3.18" to check the software version;
Note: After the upgrade is completed, please immediately unplug the USB drive and it is recommended to delete this software installation package, otherwise it will automatically enter the upgrade mode again when booting up.