Acer RA19WAANU Service Manual page 33

ACER X193HQ
32
Go to cover page
Step-5 Select "64K" icon to load firmware image. There are two
HEX files. You only need to select "64K" to choose
"X203H_AAS_F001-EMEA.hex" and
"X203H_AAS_F001-EMEA_Extend.hex" will be loaded
in "64~96" automatically.
Step-6Press
6. Firmware Upgrade Process (continued)
button
The screen will show "PASS"
Check firmware version
Turn off the power,then press force on " POWER " and " E "
button at the same time then press on " MENU "button to
enter factory mode
Note: Please pay attention ,Don't change any parameter
which is measured by precise machine before shipping out