https://dus01.psp2.update.playstation.net/update/psp2/image/<region>/<date>/psp2updat_<version>.pup
: When a Vita gets stuck in a "bootloop," copying this file to a specific internal directory ( ux0:data/PSP2/UPDATE/ psp2updat pup download link
If your PS Vita’s automatic update fails or the console is stuck in a boot loop, you can manually place the update file on a Memory Card or use QCMA (Open Source CMA) on a PC to force an update. https://dus01
Connect your Vita to the PC via USB, go to Settings > System Update > Update by Connecting to a PC , and follow the prompts. For PlayStation TV (Using USB): psp2updat pup download link
On your Vita, go to Settings > System Update > Update via PC .
