Is a firmware update necessary

[FatOldManWithAC2]

Finally got my C2 (until then I was FatOldManWithAFuze+) and found the UI to be extremely unintuitive. The worst part was the browser windows followed closely by the Now Playing Screen. I liked the browser in the review by the Hulk Smash guy (BruceBanner) so I downloaded it with a different menu and NPS (not the vertical ones he has). It makes the C2 pretty much the easiest UI I have ever used. Now that I wrote a novella here I can get to my question. Since I was so excited to try out my C2, I loaded it and put on the custom UI before updating the firmware from the stock (1.12). Question is if I update will I have to reload the UI and my mp3s or is it really necessary to update the firmware if it works as is?

[CrowdAds]