Upgrading Internal Hard Drive on Firmware 4.05.
1st step replace the Internal Hard Drive:
Fat:
https://www.ifixit.com/Guide/PlayStation+4+Hard+Drive+Replacement/24717
Slim:
https://nl.ifixit.com/Teardown/PlayStation+4+Slim+Teardown/73193?lang=en
Follow til 0:30 sec don't go any further.
Pro:
2nd Step getting the right Recovery Firmware 4.05 and...
Upgrading Internal Hard Drive on Firmware 4.05
1st step replace the Internal Hard Drive:
Fat:
https://www.ifixit.com/Guide/PlayStation+4+Hard+Drive+Replacement/24717
Slim:
https://nl.ifixit.com/Teardown/PlayStation+4+Slim+Teardown/73193?lang=en
Follow til 0:30 sec don't go any further.
Pro:
2nd Step getting the right Recovery Firmware 4.05 and...
Upgrading Internal Hard Drive on Firmware 4.05