Not turning on after updating

Hi!

Does the recovery mode still work? You can enter it by doing the following (Make sure that the console is completely off):

Press and hold the PS button, "R" trigger and the power button simultaneously untill the PS logo appears. If nothing happens after 60 seconds, it's fully bricked.

When it's fully bricked, there is not much to do about I'm afraid... A motherboard replacement is required at that point unfortunately.

You can follow this guide to replace it: PS Vita Slim Motherboard Replacement - iFixit Repair Guide

They are not that expensive anymore. You can buy one from AliExpress here: Firmware Below 3.6 Original USA 3G WiFi Motherboard for PS VITA PS VITA for PSV 1000 Mainboard Board Metal Replacement - AliExpress 44

Or here: Original USA Version Mainboard PCB Board Motherboard Replacement Parts For psvita 1000 psv ps vitaor nintend 3ds new 3dsxl - AliExpress 44

If you need anything else, please let me know!

Sounds like the update might have failed and bricked the device. The orange light means it’s getting power, but the system isn’t booting. Try a hard reset or booting into recovery mode if possible. If that doesn’t work, you may need help from the manufacturer or a repair shop.