how do I fix my General Mobile AndroidOne Security update loop?

[Android Central Question]

Since last night, my phone is stuck in a loop where it constantly reboots to perform a security update. I've had about 10 cycles of this loop as of right now, and each time my phone boots, the phone will say the update is completed, work for about 2 minutes and then reboot again and go through the same loop.

Any ideas why this might be and how to fix it?