Confirmed working on f940bt.
edit two files RPG0 and RPG1 and make the adjustments as below
1. Run 'supertestmode' from a freshly formatted (FAT32) SD card.
2. Copy RenewallFlib.dll from USER\PRG0\APL and USER\PRG1\APL to SD root.
3. Remove SD card from AVIC and edit RenewallFlib.dll from USER\PRG0\APL and USER\PRG1\APL as per monsterF9's guidance on a PC.
4. Insert SD card with edited RenewallFlib.dll from USER\PRG0\APL and USER\PRG1\APL back into AVIC.
5. Delete RenewallFLib.dll from USER\PRG0\APL and USER\PRG1\APL on AVIC.
6. Paste edited RenewallFlib.dll from SD card into USER\PRG0\APL and USER\PRG1\APL.
7. Remove SD card format it and copy Update, FIRMWARE and CARDINFO.cif onto it.
8. Insert SD card into AVIC and turn on ignition. Follow onscree instructions where you'll be prompted to enter a password. Enter PASSWORDPASSWORD
9. Sit back and wait for 25 minutes whilst the unit updates.
I needed to edit RenewallFlib.dll from USER\PRG1\APL.
Voor alle nederlanders onder ons, pm me voor evt hulp met je f940bt.
greetz Swalex