Hi again Deird01
Thanks for updating the thread, and pleased to see your box is now performing correctly.
Whenever a box is swapped out you lose recordings and series links.
For future reference if you ever want to perform another factory reset. (Settings > System > Factory Reset)
It's actually misnamed and only a partial system reset and not a complete factory reset. You are given 2 options
Keep Recordings
Format Disk
If you choose the second option (Format Disk) you lose everything, the same as factory resettting a computer hard drive. I suggest always trying the Keep Recordings option first.
Choosing Keep Recordings, means you won't lose your recordings and any planned recordings or series links you've set up. You will have to sign into your apps such as iPlayer, Prime, Netflix and ITVX again. Also Match frame rate and Standby power consumption will go back to their default settings if you have changed them.