This is the safest method for the latest version. You can typically find the "PS Vita System Software Update" page on the official PlayStation website.

On the Vita, go to > System Update > Update by Connecting to a PC . Method 2: Safe Mode Installation If your Vita won't boot properly: Turn off the device.

Follow the on-screen prompts to pull the file from your computer. Important Tips for a Successful Update

If you are installing a new proprietary Sony memory card or an SD2Vita adapter for the first time, a fresh firmware file is often required. Where to Safely Find a Psp2updat.pup Download

If your Vita’s software becomes corrupted and you need to reinstall the firmware via "Safe Mode."