CIC constantly rebooting

[Cyrix2k]

The CIC is constantly rebooting about every minute or so on my dad's 2013 X5 35i (replacement for the '09 I wrecked in the other thread). It was working fine, we flashed the DME with MHD, and it worked fine on the test drive. After that it sat for two days and my dad reported the sunroof & all the windows opened when he unlocked the car (I think), then iDrive was in a constant boot loop. It will show the BMW logo, display the iDrive menu, and even some systems work like the radio and the nav for about 30 seconds until it reboots.


I've done the following to troubleshoot:

1. Tried to reset by holding the volume knob in for 30 seconds. It will reset, but then continues to boot loop.
2. Scanned with ista/d and when I time it right, it will communicate to the CIC & CIC gateway. It shows no codes. When it is rebooting, both the CIC and the gateway are offline.
3. I tried clearing the codes on both the CIC & gateway + the rest of the ECUs in the vehicle. It comes back all green, no codes. I also reset the CIC from ista.
4. I pulled every fuse I could find related to iDrive then put them back in. No change.
5. I pulled the hard drive from the CIC and it continues to exhibit the same behavior.

At this point I'm at a loss - any ideas? Or is it time for a new CIC? How are the android replacements? Do they work with the HUD for nav, show oil level / system faults, and have the EQ for premium sound? Do they work without a functional CIC?