We are using LP8860-Q1 (D version).
We use software to control LCD modules shipped with PWM control at LCD manufacturers.
Check address 0x66, and if it is PWM control (bit1 = 0), write bit = 1 to switch to I2C control,
Check for 0x6E and write B1 if it is other than B1.
<Process flow>
Shipped by LCM maker PWM method 
Our assembly process power supply ON Address 0x66 PWM control bit1=0 check I2C control bit=1 written F2
Check address 0x6E and if it is other than B1 Shipment
Backlight did not turn on in the field Mileage about 4000km
<EEPROM Code check result>
EEPROM Code 0x660E
Other than that, it became 0E including 0x66.
<Inquiry>
1. Can't it be locked after writing to EEPROM?
2. I rewritten 0x66 to I2C control, but I would like to know why it becomes 0E.
3. What does this 0E code mean?
