Reinstall PS4™ and PS5™ system software using Safe Mode (US)
PS4 Pro finally died today. Won't accept reinstall file. Hopefully don't have to wait too long for a PS5. Farewell old friend : r/playstation
Image] PS4 stuck in an endless safe mode loop. Says that I need to connect a USB containing the ver 6.51 update file, I have done this and still won't start up.
How to Resolve PS4 Error Code CE-34788-0 (Update File Cannot Be Used) - TechQuack