INF 40 Series - RepairGuide Mainboard Replacement
When the panel starts in AT View mode after replacing the mainboard, loading the correct firmware from below will correct this.
Firmware Download links
INF6540 Firmware Download:
Updated: May 18, 2022
INF7540 Firmware Download:
Updated: May 19, 2022
INF8640 Firmware Download:
Preparing the USB drive
Format a USB drive (FAT32)
From the links above, download the file specific to your display
- Extract the contents of that file and locate the Upgrade_811 folder
- Copy the Upgrade_811 folder to the root directory of a USB drive (do not
change the folders name)
USB drive setup with the Android firmware
- Replace the mainboard.
- Plug the prepared USB stick into the topmost USB 3.0 port on the side panel.
- Turn on the mains power to the screen.
- When the Commercial Display logo appears on the screen, press and hold the power button on the front panel until it starts blinking, and then release the button.
- The system starts up and the firmware upgrade will start as indicated below.
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- When it is done, it will ask you to set up the display again as if are just setting it up for the first time.
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If the firmware upgrade doesn't start, try a different USB.
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