Install nemesis service suite
- Install nokia conectivity cable driver attached (this is necessary only if your pcsuite is one of latest versions)
- Connect phone via USB
- Open Nemesis and click on magnifying glass on the right
- Click on "phone info" icon and "permanent memory" tab on the lower right near "Fbus info" tab
- Click on "write" button
- Then choose to open the "Lifetimer.pm" file which you extracted somewhere before and wait for the moment
- That's it! Reboot the phone and type *#92702689# and SURPRISE! Now you have 0 hours of talk.
This works with all newer nokia phones!