Go here https://www.clubimate.com/t-DEVICE_JAM_UPD.aspx

I can't get the exact download address because i've registered my jasjar. You need to register and download the latest o/s for your ppc. It should be one that ends in wwe(WorldWide English). It takes about 30 mins for the install but it will be nice and shiny and new (:

And i've never heard of settings being lost due to lack of recharge???