Hi, I’m using serveral wifi kit 32 V3 . On all of them the LCD display have issues. On one the brightnes of individuell letters is significant different on other some lines are missing and aon another some lines are quite dark others are bright. When the boards were new all was working fine.
The strange thing is that all of them have issues in the meantime.
Any hint ?
Klaus
It depends how old the displays are and how often they light up the same pixels. In my experience, these displays have a limited life. I have some (not Heltec displays, but the same type) that are several years old now and are pretty much dead in certain areas because they have been on 24/7, most of the time with the same or just minor variations of the same text on the display—those areas/letters are now pretty much invisible.