You mentioned "upd" in your search. This likely refers to .upd files or firmware updates.
Unlike a standard SSD where you flash a firmware file provided by the manufacturer, Phison controllers work differently. The "firmware" is often bundled into a configuration package.
If the MP Tool shows a red failure, don't panic. 80% of failures are fixable. phison ps225107ps2307 upd
Do not just download the first tool you see. You need to identify the Flash ID (e.g., 98 3A 98 A3 76 51 for Toshiba TLC).
How to check:
The most interesting aspect of the PS2307 is its role in the global Fake Flash epidemic.
Scammers realized that the PS2251-07 firmware could be manipulated to report false capacity to the computer. You mentioned "upd" in your search
This controller was so prevalent in these scams that a massive community project called "FlashDrive.ru" and tools like H2testw became essential utilities just to combat PS2307-based drives.