I am running into this exact issue. I have a X 2.6 CE installed in an v1.0 box.
I have a v1.6 box with a Xenium SP Ice chip installed in it. The 1.6 works great and has for the past few years. The 1.0 is the one I tried flashing and it's now fragging.
Could I hot swap the chips? If I'm not mistaken, the SPIce is only for v1.6 of the box. I do not want to screw up my box to fix my friends.
Any help would be appreciated.