Things you need:
1.- Phoenix_Service_Software_2010_38_5_44210_ and Phoenix_Service_Software_2011.46.002.47246
-Phoenix Service Software 2010
-Phoenix Service Software 2011
2.- RM-596 version 25.007 and RM-596 version 11.005 from N8
-RM-596 version 25.007
-RM-596 version 11.005
3.- Your Phone firmware
-lowest version of your phone's firmware = Download it via navifirm
-the version you want to flash (if flashing from belle to anna, this would be anna) = Download it via navifirm
Credit to luis12luis
for origional post.I just make it more easy to understand and what i experience while downgrading my C7 from Belle to Anna....
and special thanks to Rana.Faisal
for provide me the file...Here is summary of the procedure...
1.Phoenix Service Software 2010
2.Phoenix Service Software 2011
3.RM-596[N8] version 25.007
4.RM-596[N8] version 11.005
5.lowest version of your phone's firmware
6.Anna firmware for ur phone[or any firmware that u want to use]
step by step[in this case it is C7]
1.Flashing ur C7 with RM-596 version 25.007(N8 firmware)[use Phoenix Service Software 2010][use update software button]Once done your phone will be bricked. DO NOT PANIC.
2.Flashng ur C7 with RM-596 version 11.005(N8 firmware)[use Phoenix Service Software 2010][use refurbish button]Once the flash is finished your pc should recognize your phone(some drivers will be installed but the phone's screen will be off)
3.Flashing ur C7 with the lowest version of ur C7 (C7 firmware)[usePhoenix Service Software 2011][use update software button]now the phone's screen should be on (at last).[/colour]
4.Flashing ur C7 with firmware version u want(C7 firmware)[use Phoenix Service Software 2011][use refurbish button]How to download your firmware from Navifirm?
Follow this guide - http://forum.symbian-developers.net/index.php?topic=843.msg4481#msg4481How to flash?
Follow this guide - http://forum.symbian-developers.net/index.php?topic=15.0Some more flashing guides incase you have any confusions:http://forum.symbian-developers.net/index.php?topic=841.0http://forum.symbian-developers.net/index.php?topic=842.0
Any help? Comment belowQuick Tip from an E6 user - PhaseP who used this method
Just finished taking an E6 from Belle to Anna. I had to take some different actions for the steps.
In step 3, I had to do a "USB Dead phone" with "No Connection" and "Refurbish".
In step 4, I had to do a "Update Software"
This was the only way to bring it back.