Alright, let's try the Lotustalk hive mind for this one.
I installed a BOE REV300 (it's fast) a couple of weeks ago in my 2007 Elise and while my dash worked before the install, I lost speedo, tacho, odo, and gas gauge post install. Warning lights are still functional. I've been worked with Andrew and Phil to try and resolve, so far it looks like the next step will be to ship my ECU back to test to see if they have full functionality using my ECU in one of their cars.
Steps I've taken:
Opened the clam back up and rechecked every plug ensure a good connection
Attempted to do a speedo reset, but the dash didn't respond at all. No firmware shown on screen.
Checked the 7.5 amp fuses under the dash (all seem fine)
Disconnect battery for 10 minutes.
I have not removed the dash cowl, but given that this area wasn't touched I can't see being as issue.
From what I've read in the forums, the fuse block under the dash has something to do with this. I've checked these fuses and they seem to be fine, but I noticed on my last drive that the tap-a-circuit I have connected here isn't charging my phone, so I'm thinking this entire block doesn't have power. Is that possible? What is the source of power for this block? Is it like a sub-panel that connects to the main fuse panel under the access panel? If so, which circuit should I check?
Pic is not of my install. Just what I could find online.