Acer B223PWL Service Manual page 60

S12.Start writing. Click "Program" to start writing. When the
S13. Check the S/N in monitor user menu.
Press "MENU" and select "Information"—"SN", you can check the SN.
7.4 Troubleshooting.
S1. Can't write error.
S2. Try below few ways to cure can't write errors!
(1) AC on the monitor and turn on it.(Restart the monitor)
(2)Take apart the monitor and connect the 7pin of EEPROM to GND to diable write protection then write EDID
one by one.
(3)Set the Burn in on last to try again.
green "PASS" appear, the process is finished.
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