shmoun
commented
1 year ago It was some time ago that i flashed my STN-E31HA displays through the wire, so just to be sure I took a fresh one and repeated from memory.
- GND -> GND or big battery negative pad on the board
- TX -> SWS
It worked. I refreshed the firmware. Don't forget to set the model to BWR_154 afterwards through the OTA flasher.
I tried to flash one of my STN-E31HA displays, but I didnt notice RX and SWS are separate pins on this board. I tried flashing with the following connections;
RX to TTL Converter TX NRST to RTS
the flasher said flash was succesful, however there was no light flashing during the process and the contents of the display have not changed.
Then I noticed the separate SWS pin, so I tried again with the following connections;
SWS to TTL Converter TX NRST to RTS
Now the light was flashing during the process, and again I get a message that flashing was succesful. The green light blinks, but the contents of the display still havent changed.
Did I mess up or am I missing something?