Unable to write/delete to any share. Reading works fine

Hi All,

I have had my ReadyNAS 104 for a few years now and it has been very dependable as I use it only for backups and a file share.

Yesterday I noticed my auto backups where failing as I was not able to write to the share anymore that was mapped.

As far as I know there has been no changes and I have checked on multiple computers and accounts and I am running firmware 6.2.5

I have tried to change file access but have only been getting errors 2002030001 and 1007130001 when I try as below

I then ran the OS reinstall via the boot menu but nothing changed.

If I go into the admin webpage and into my shares and delete or change files they will act like they've accepted my command but the files will stay in the folder and no changes actually happen.

I have now tried to update the firmware to 6.4 or higher and that fails too (this was a previous issue though due to invalid checksum) and have tried to install the .deb program as per https://kb.netgear.com/29974/ReadyNAS-OS-6-RN100-RN2120-cannot-update-due-to-invalid-checksum but this also fails to install the app

This means I cannot update firmware to see if that fixes it.

I also tried to turn sharing services like SMB off but also get error 15002030001 doing that

In gereral it seems like I cannot make any changes to the system and it is in read only mode for all users even admin on the web portal.

Please help me as I have over 6TB of data that I will lose with a factory reset

Thanks