Aug 17, 2011 for Nokia N8 users with a knack for tinkering around; Symbian Belle, the new firmware that the files had to be pulled until it can be resolved. Dec 9, 2011 The aging Nokia N8 is to take a draught from the well of eternal youth in early 2012 with a software update to Symbian Belle. Xeon Belle Refresh v111.040.1511 Custom firmware for Nokia N8 has been updated to v3.5.1. We had How to Flash Official Symbian Belle on Nokia. If you are using Symbian Anna Leaked Firmware or Symbian Belle Leaked Firmware you might be interested to revert back to the original firmware, however.