Mesa 7i90HD no comunication/ update erprobte on 2nd mesa

Hi, trying to get my 7I90Hd to talk to my mesaflash request. By now i think i screwed up flashing two spi images to it. At least it is not responding to the PI and spi nor vie epp and Lpt on a PC. I belive to have tried all i foind but nothing.... I now had the idea to flash a bit file for the 7i90hd with epp image to a 7i80db to the secondary eeprom and resolder that to the 7i9hd. Would that work or do borads use uncompatible memory formats in the eeproms? This solution is for me the most easy on.... i  cant jtag an update... so i think this should work.....
I tried sudo mesaflash --device 7i90hd --spi --addr /dev/spidev0.0 -- readhdmi running on the latest Pi5 image 01/2026 
and sudo ... --epp --addr 0x378  and also 0x778 trying jumper 3 in S and P in all combos.... and kind of gave up after all my hours of testing...
Any better idea?
The lpt cable is a 1:1 cable LPT to mesa.

The spi is a pi - mesa 5 cable setup
11(mesa) 23 pi clk
13 - 21 SPIn
15 - 19 SPout
17 - 24 CS0

I also swapped 13 and 14 just to make sure thats also no issue...

Do the installed SPI firmware images load properly? (init and done light off)

If you need SPI, these should work unless there is a hardware issue of some kind.

A very simple hardware test would be to assert (ground) /CS
and see if the 7I90HDs MISO pin is driven low

Init and done Flash up and pwr stays on with w3 in S and M.
I will try the CS low test tomorow.