Why do I get a SIM error only after midnight?

[spasticnapjerk]

SIM Error - Only After Midnight

I'm having the strangest problem with my 920. It never has had any SIM errors at all, but about a month ago, I would wake up in the morning with the phone displaying a SIM error. This happens every night, after midnight. Rebooting fixes the problem. I tried rebooting the phone around 3:30 in the morning, but after a while it would display the sim error again. It never happens during the day.

Any help?

It's a Nokia 920 unlocked ATT RM-820 (I'm pretty sure), running Windows Developer 8.1, using TIGO service in Honduras.

Thanks in advance!

Drew

 

[nTrud3r]

Re: SIM Error - Only After Midnight

It may be an issue with your SIM card, your SIM card slot or your current version of WP.
If it works on another phone at that time, the problem is either the SIM slot or your WP version.
Also, why do you have to be on your phone at midnight?