50g port 1 corrupted?

[franz.b]

Hi everyone. I have a problem on a 50g. When I reset it (ON-F3) it says "invalid card data", but there is no SD card inserted. From the file manager I noticed that port 1 doesn't even have a free byte and upon entering the list there are 6 files with names made up of random characters. I can't access port 1 from the LIB menu and the error is "insufficient memory". Trying to delete the files from the file manager I get no results...
Can anyone help me?
Thanks in advance.

[Joe Horn]

Try executing the PINIT command. Fastest access: just type it out and press ENTER. It initializes all existing ports. Its description in the AUR: "PINIT is particularly useful when a third-party library has corrupted memory. It stores and then purges an object in each internal port. This has the effect of initializing each port without disturbing any previous-stored data, while removing any invalid objects."

[franz.b]

Thank you! it worked perfectly! ?
Could the problem have been caused when changing the batteries? or is it due to the installed libraries?

Thanks again!