Factory Bad Block

Hello there!
My calculator was stuck in the middle of the loading and also could not start the DIAGS menu, so I bought an TTL-USB to try to solve the problem however, I saw that bad block that you can see on the image https://imgur.com/bMf86i4.
I have tried to reboot it in the DOC + ENTER + EE mode but np matter what function I use it end up at the beginning no matter how much time passes.
Hope you can help me!
Thanks in advance
My calculator was stuck in the middle of the loading and also could not start the DIAGS menu, so I bought an TTL-USB to try to solve the problem however, I saw that bad block that you can see on the image https://imgur.com/bMf86i4.
I have tried to reboot it in the DOC + ENTER + EE mode but np matter what function I use it end up at the beginning no matter how much time passes.
Hope you can help me!
Thanks in advance