Arlo Pro 2 blinking blue and amber / SYNC button not working

[Skyfrog]

I've had the Arlo Pro 2 for many years now.

Unfortunately, the batteries were left to drain after leaving for a work assignment in another state.

Only one synced, the others I had to remove from the app and tried to manually sync, all but two failed.
One was flashing blue and amber and the other would not respond to the SYNC button.

So, I took them apart and experimented.  The outer casing is held together with four T5 or T6 screws.

The camera electronic module was held on with four Philips #000 or #00.

So, I swapped the camera modules and got one to work.  WooHoo.

If you are curious as to what's inside, here ya go: