Phone went into overheat shutdown, but is not overheating. (Not on a charger) Galaxy S6

[DenisP]

Phone locked up and shut down from alleged overheat but isn't even slightly warm.  Some troubleshooting research led me to find a small piece of a charging cord plug in the charging port.  After removing the small metal tab, phone went dead.  Put it on a charger and the android system tried to update but then showed errors and went to a diagnostic page.  After resetting the graphics, phone finally came on, but shortly showed the overheat message again and locked out all apps.  Can't even power the phone down.

[vzw_customer_support]

That's not good to hear. It's important to have a functioning device. A Private Note will be sent to assist you further. -BrittanyC_VZW