Hyerpixel 4 square no display on Pi3 A+ Bullseye/Buster

Hi,

I think I’ve tried all possibilties in the support documents and github pages getting it to work, but it’s never shown anything on the display, only the backlight illuminates. I’ve tried both Buster and Bullseye.

Here is some troubleshooting info:

pi@raspberrypi:~ $ dmesg | grep ft5
pi@raspberrypi:~ $ ls /dev/i2c-*
/dev/i2c-2
pi@raspberrypi:~ $ i2cdetect -y 2
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --

trying all the GL driver options gets slightly different results but never leads to the screen working

I wish I’d got an hdmi monitor now, I didn’t think it would be so difficult to get it working, is there a way to confirm if it’s a faulty screen?
Many thanks :)