I got my mini 9 from vodafone AU with their integrated WWAN, and installed OS X using the DellEFI 1.2a5 method, all good, works fine.
So i bought a Sierra Wireless 880U USB modem (same as the 881U, just the euro version so it works better in AU) and pulled out the miniPCIe modem to replace the dell 5530 (so i can get signal strength info etc in X)
I stick the new card in, screw it down and hook up the antennas, hook it up, power up the mini...and nothing.
Not a peep. the power light comes on, ten seconds later, turns off again.
I pull the card (MC8780) and it powers up fine.
I tried the pin20 tape trick, still no dice.
Any ideas guys? its flashed with the generic 880U GPS-enabled firmware... neg sad
- the MC8775 works so why doesn't the MC8780?