If you want to debrand the Optus E71

or are just generally fuicked off that you cant update the firmware

Simple change the product code of the phone to an unbranded one and then use nokia’s own software update service to update your phones firmware.

1) get the

2) Nemesis Service Suite
This is an application that actually does the changing of the product code. It can (preferably) be downloaded from the maker’s site BPreaks.brinkster.net for the latest version. (left hand side, downloads section)

3) change your product code from xxxxxxxx to xxxxxxxxxx using

NOKIA FIRMWARE FINDER-BEST TOOL

est tool for search the latest firmware your nokia.
Easy to use just 4 step
- choose nokia type (ex. E63 RM-437)
- select the latest firmware are available
- select firmware release for your country
- select firmware do you need (ex. only mcu, ppm or complete)
download

5) then use the Nokia Software Updater to update the firmware to the new phones correct firmware