Does windows phone 10 roll back delete all the content on the phone?

[Richard Atkinson1]

Does windows phone 10 roll back delete all the content on the phone?

 

[Harrie-S]

Yes.

 

[RumoredNow]

Any time you flash the OS and Firmware from scratch it will delete whatever resided on the phone.

However, you can still restore a backup during the setup process. I assume you saved a backup just before embarking in Insider?