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LCD Screen ParameterFix

Use this guide to resolve pixel/display issues on VapeTM vending machine screens by flashing the LCD parameter config file via USB

Before You Begin

The USB drive must be completely empty and formatted as FAT32 before copying the config file. Any other files or incompatible formats may prevent the board from reading the drive.

What You Need

Item

Details

USB Drive

Empty — no other files present

Config File

ys_lcd_param.txt (attached to this document — see below)

Android Board

Red board (the main controller board in the machine)

Step-by-Step Instructions

1. Prepare the USB drive — Ensure the USB drive is completely empty. Format it if necessary to remove all existing files.

2. Copy the config file — Save ys_lcd_param.txt (attached to this document) to the root of the USB drive. Do not place it inside any folder.

3. Insert the USB into the Android board — Plug the USB drive into the USB port on the red Android board.

4. Wait for the LED to flash — The LED on the Android board will begin flashing. This indicates the board is reading the config file. Wait approximately 15 seconds.

5. Screen restarts automatically — The screen will restart on its own once the config has been applied. Do not unplug or power off during this process.

6. Verify the fix — Once the screen comes back up, confirm that the pixel/display issue has been resolved.

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