You came here for a "BETTER" download. The download alone isn't better. The jailbreak is.
Once on 3.73, follow these steps (as of the latest scene standards):
Rename the file. Change it to PSP2UPDAT.PUP (Vita uses a different internal name).
Copy to your Vita via QCMA.
If you are looking to "download BETTER," you are likely weighing the pros and cons of Official Firmware (OFW) vs. Custom Firmware (CFW). Here is why 3.73 might be the "better" choice depending on your needs:
Only proceed if you own the device legally and understand the risks.
Once you have the PSP2UPDAT.PUP file on your memory card: Ps Vita Firmware 3.73 Download BETTER
Post-Update Check: Go to Settings → System → System Information. It must read "System Software 3.73."
PlayStation Vita Firmware 3.73, released on October 16, 2019, was primarily a minor "stability" update designed to improve system performance. While it is no longer the latest official firmware (superseded by version 3.74 in May 2022), it remains a significant milestone for the handheld's modding community. Official Download & Installation
Sony no longer provides a direct, prominent standalone download link for 3.73, as their official support pages now default to the latest version, 3.74. You came here for a "BETTER" download
Standard Method: Most users update via Wi-Fi directly on the device under Settings > System Update > Update using Wi-Fi.
Manual Method (Advanced): For those requiring exactly version 3.73, the update file (PSVUPDAT.PUP) is often hosted on third-party driver repositories like Softpedia, though these are not official Sony sources.
Safe Mode: If a system is "soft-bricked," firmware can be reinstalled by entering Safe Mode (holding Power + PS Button + R-Trigger) and selecting Update System Software. PS Vita System Software (US) Rename the file