After last two updates I have experienced problem with constantly device restarting. Device automatically restart or power off after sim pin menu appear. After that, device boot in recovery mode and suggest me reset settings or try to boot again. If I choose try again, device start boot process, successfully display google and GOS logos, and restart after sim pin menu appear. The only way to successfully boot, is remove sim card before power on. If after successfully booting without SIM, I’ll try to put sim card, after sim pin menu appear, I will have the same behaviour with restarting in recovery mode. In that case, the only solution for me to use device is following steps:
1) Remove sim card
2) Turn on device
3) Airplane mode on
4) Insert sim card
5) Enter sim pin
6) Disable airplane mode
Sorry for possible mistakes, English is not native for me. Very appreciated for your help.