Xenon ROD 0022 Post-Bus Code 0xA8 after Hardware Modification

[moejoe]

Hi there ,

after reading several threads in this board I cannot find any solution for my Problem.
It is a Xenon box with CB 1888. I could boot Xell and the old orignal dash and got CPU-Key.
After that I have noticed that ethernet is death and I do not have removed R6T3.
So removing R6T3 and install missing resistor R1B9 in TX_CLK of ethernet chip ended up in ROD 0022.

I put all back to the original state, but same error 0022. The error occurs 30-40 seconds after starting the box.
Now Xell original NAND and or XBR or freeboot will not boot into dash.

Reading CPU post code @FT6UX gave me 0xA8 or 0x15 depending on pin count

FT6U1   POST[7]/POST[0]
FT6U7
FT6U6
FT6U5
FT6U4
FT6U3
FT6U2
FT6U8   POST[0]/POST[7]

Now I do not know where to find this code to check what is wrong with this Board?
Did I fried the CPU or Southbridge?

Anyone who can help?

Regards, moejoe