Check Ps Vita Serial Number [better] Here

For PCH-1000 units, the serial number can be cross-referenced with the Sony internal database (now largely leaked or archived) to identify units that utilized specific battery connector designs prone to failure. Early serials (lower 7-digit suffix) often require battery terminal cleaning or shim adjustments to boot.

If your sticker has worn off or been removed, you can retrieve the serial number using a PC and a USB cable. check ps vita serial number

Similar to the 1000, the sticker is found on the bottom edge , near the micro-USB port and headphone jack. For PCH-1000 units, the serial number can be