I have a GLC24064 with markings "Rev 1.2" and "24064B1 Rev. C"
However, when powered up the LCD displays a splash screen for the GLK24064-25.
When using LCD Tester, i get error messages like"cannot detect LCD type", cannot read version number, cannot read serial number. It detects the LCD type as 0x0 instead of 0x13.
Sending commands using the LCD tester results in garbled text on the screen. No commands work as they should.
I am using 5 V supply to the 4 pin connector, and an RS232 cable.
Whats wrong?