You probably enter calibration mode by mistake or the LCD panel has forgotten its calibration parameters. There are two ways to solve this:
- Press the screen very rapidly 20 times.
- On a blank microSD card (8 GiB max), create a folder
DWIN_SET. In this folder, create a
CONFIG.TXTfilewith the following content:
- I found method #1 difficult so in general, I use method #2.
- Previously I said here to create
CONFIG.TXTin the root of the microSD card. This is wrong. It has to be inside a
CONFIG.TXThas to contain
TP_CORRECTand nothing else.