crowpanel 7" V3.0 touch function is not working

edited July 3 in Elecrow HMI Display

Question:
I have one of your crowpanel 7" V3.0 touch screens and i get get the touch function working
I had the screen displaying but when i then tried to get the touch to work the screen went blank again.


Answer:
Pls view the following :

  1. please test it using our 3.0 factory firmware (link below). This will help troubleshoot whether it's a hardware issue.

https://github.com/Elecrow-RD/CrowPanel-7.0-HMI-ESP32-Display-800x480/tree/master/factory_firmare/hmi7.0-factory-firmware-3.0

Operation Instructions:
https://github.com/Elecrow-RD/CrowPanel-7.0-HMI-ESP32-Display-800x480/tree/master/factory_firmare

  1. If the issue persists, please check if the touch ribbon cable on the back of the device is properly connected and intact. Pls also reconnect this ribbon cable. Please send us a photo of the back of the board.

Here is how to reseat the ribbon connection:

a. Lift the black latch

b. Gently remove the ribbon cable from its socket

c. Examine the ribbon cable, latch, and socket for damage

d. Reinsert the ribbon cable firmly

e. Press down the black latch to lock it down

In the image below, the blue circle indicates the hardware version, and the black circle indicates the touch ribbon cable.

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