Can mod chips colide ???

[H.H]

Hi,
Installed yesterday a V4 no-solder chip. Doesn't work !
I had an S-Box USB mod chip, which I understand works with one jumper wire which is soldered to the main board.

When I try to boot with the AR2 and the new chip I can't get anything to work.

Can it be that the two can't work together ? Do I need to remove the old jumper wire so the V4 will work ???

Thanks a lot.
H.H