I just thought I would share my nightmare when updating to ANNA (22.14)
I had previously debraned and hacked my phone using the guide on this site and yesterday 18/08/2011, I received a message on my phone telling me I had a software update.
I connected my phone to my pc and used NSU (Nokia Software Updater) to update my phone which all went fine but when I started to use my phone it was very slow, wouldn't go on the internet and had many other problems including the branding was back
I have removed an app called TweakS which allows you to edit a lot of settings on previous firmware versions (not anna) as well as RomPatcher+ and I am currently downloading Euro2 Blu firmware from NaviFirm and will flash with Phoenix.
I will let you know if my phone is back to normal after the re-flash.
For now, DO NOT USE NSU or Ovi Suite to update your firmware!!! or else you may have the same problems!