Have you just tried doing something on the LCD? LCD.drawLine(0,0,100,100)
Is there no text displayed on the LCD at startup at all? Normally at startup Espruino should display some text in the top left. It's possible that the board has a different LCD to normal.
The 2.8 board is pretty useless really - it's got a surprisingly small processor given the LCD that it's got to drive. Given there's so little flash, code has to be left out to get Espruino (and the fonts/etc) in. Also, different batches of the same 'HY' boards seem to have different LCDs - the driver has to support several different controllers.
I think you've asked about compiling the software yourself? If so, you could try editing libs/graphics/lcd_fsmc.c and removing the '#ifndef SAVE_ON_FLASH' lines. This should add support for other LCD types and might make it start working.
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