Error code: 1A51
<- BackI2C communication error (Between elements on ASIC and SUB)
The I2C communication error between the Main Board and SUB Board has occurred.
Check the connection between the Main Board and the SUB Board if there is any loose or slant connection, or ripped terminals or the breaking of the FFC.
Replace the FFC between the Main Board and SUB Board.
Replace the SUB Board.
Replace the Main Board.