ps5开机就提示连接了太多的usb设备

是bug, 重建数据库。试试

第一次听说还有这种bug。好奇查了一下：

“Too Many USB Devices Connected To PS5” Error – How Do You Fix It?
The fixes for this error are usually pretty simple, but the worse your case, the more complex the fix will most likely be.

Unplug any USB cords currently plugged in
Sometimes the simplest solutions are the best ones. If you have multiple USB cords plugged into your console at the same time, all sending power to a separate device, your console may just be perfectly fine and really does have too many USB devices connected, so just them out, and try not to leave them plugged in for extended periods.
Use a different USB cable
Not everything will be your PS5‘s fault, and getting this error code could be an example of that. Sometimes just trying a different cable will be enough to tell you the first one is probably faulty in some way, and you shouldn’t use it with your PS5.
Turn your console off and on
As always, turning it off and turning it on again is a staple fix for many software issues and the same is true here. Rather than just pressing the restart button, turn your console off and unplug each cord for 15 seconds, then plug them back in and turn it on again.
Reset your console
If none of the above fixes have helped, what has also been known to work is resetting your console. This is always an unfortunate fix to have to attempt, because it means wiping all your console’s data and needing to re-download everything again, but at least your saves and purchases will be safely tied to your account and in the cloud.
Send it into Sony
Unfortunately, if absolutely none of the above fixes have worked at this point then you are most likely dealing with a faulty USB port, something you’d have to get under the PS5 hood to fix, likely by just replacing it with a new one. This means sending the console into Sony for repairs, and should only be tried as a final effort.