Disk w/ update Won't Download Fully - PS5

@EA_Aljo @I have try cleaning the cd many times. I have contacted sony support and try rebuilding the database from safemode, restoring games liscences, restarted my routeur and ps5 (unplugging them for 5 minutes). But nothing worked. They eventually told me they could not help me and to contact ea support. I tried to delete and reinstall the game many times, always with the same issue. There are no external peripheral other than the controller connected to the ps5.

Just to be clear, here's how the game crash. 

Clean the cd --> insert it into the ps5 -> get an error 'can't install' --> boot the game from the ps menu --> optical drive start and the install start, the error disappears --> cancel the update from download menu otherwise it crash the install once completed. --> install complete, i can now play the full game offline. --> install the update with a message saying its complete. --> the game goes back into installation, it get stuck at 97%. I get an error CE-100005-6. I can then only play the option available from while the install is completed. It's like if the game was trying to overwrite the update.

I will be testing with another disk game on friday. It would narrow the option that the optical disk is faulty. I'm still doubtful because, i can install the game without the update.

My last resort is to do a factory reset.

Thanks for the help!