Well, with help of some forums all around the world I finally got to flash an older firmware back. Not that I had any problems; TomTom5 works great using 3 different BT GPS modules. But I forgot to backup my Dutch T9 dll so I wanted to revert. The trick with TomTom is 2 way: At first, when pairing your GPS module, do NOT bind an outgoing COM-port on it, TomTom does this for you. If you bind a com-port yourself (apart from the default outgoing COMport (6 in my case)) TomTom cannot open an additional port to the GPS module and will refuse to work.
At second, when having TomTom installed on your SD and applying a new firmware, everything on your phone will be deleted ofcourse. TomTom REQUIRES the \storage\My Documents\TomTom folder to exist, and there MUST be a file inside! It doesn't matter even if you put a music file in there, but there MUST be a file in there. If not, you will not get past the 'warning' screen of TomTom. This is true for both legal and 'patched' versions of TomTom. Reinstalling TomTom from the original CD ofcourse fixes this...
Now for going back to older firmware:
first go to http://sourceforge.n...jects/nbftools/
and get version 0.3 of the NBFTools.
then go to http://arisme.free.fr/TyphoonNBFTools/
and get the NBFTools remote client
and get http://web.orange.co...l?id=sm_1137635
Ok, you've probably already noticed it's not your average firmware upgrade with all those tools
Here goes some:
- unzip/unrar all downloaded files.
- connect using USB and make sure your ActiveSync connection is working (you don't need to register your phone, but you must be connected)
- copy the TyphoonNBFTools.dll file to the ROOT of your phone (not in Storage or on your SD, REALLY the ROOT)
- install cert.cab on your phone to get the required certificate
- copy the resetrapipolicy file on your phone or SD and run it (it seems to do nothing but it does)
- run the TyphoonNBFTools on your PC. If the titlebar does not say 'emergency flash available' you made a mistake somewhere.
- Now it's time to use the orange rom. You could use Winrar to extract the RUU_typho_v188.8.131.52_v184.108.40.206OrangeUK_S.nbf file, OR you can just run the setup until the screen which shows the phone pops up, browse to 'c:\documents and settings\\local settings\temp dir, there should be a folder named pftxx.x which contains the files. Copy the nbf file to your desktop or another location.
- Within the NBFTools click 'file --> open' and open the just saved NBF file.
- I'm not sure if this step is required for the SPL flash, but I changed model name to QTEK 8020 and I erased the operator field. Can be done through the 'edit header data menu. Be sure to do a recalculation of the hash, even if the tool reports it has already recalculated one.
- Now right-click on the SPL in the bottom window and click 'emergency flash'. There will first be a test before the actual flash is done. If the test fails, do NOT even try to flash or your phone will NEVER boot again.
- After the flash is done, just reboot your phone. It acts like normal but now has an older boot-loader.
- That it! Now you can use your original updates, even the older ones, to flash your phone!
You might even want to use NBFTools again if you want to flash a rom which was not intended for your specific phone model, but that is described in the start-port of this thread.
Any questions? Feel free to ask! (but from friday I will be on holidays for 2 weeks )
Edited by Rataplan626, 21 June 2005 - 09:39 PM.