I have a Samsung Galaxy S4 Active that I synced to my old employers Gmail service (my work email was service was hosted by Gmail).

Now I've left the employer, they've understandably deactivated my Gmail account. However, this has caused me loads of issues with my phone because every app was linked to the old Gmail registration that it can no longer perform.

Does anyone know of a way to reset or change the settings?

I have a new Gmail account for my private use so could use that, if only I could avoid having to delete everything I have on my phone!

Many thanks in anticipation for your help!