Before you proceed with installation on Nokia, please follow these instructions to disable Certificate Check on your mobile phone:

1) Open Application Manager
2) Choose Options, then Settings
3) Switch Software installation to *All*
4) Switch Online certificate check to *Off*

procedure:

   talkonaut-s60-3rd.sisx for Nokia's Symbian S60 3rd and S60 5th edition based mobile phones: 3250, 5300, 5320 XM, 5700, 5700 XM, 5800 XM (Tube), 6110, 6120c, 6121c, 6124c, 6210, 6220c, 6290, 6650, E50, E51, E60, E61, E61i, E62, E63, E66, E70, E71, E90, N71, N73, N75, N76, N77, N78, N79, N81, N81 8GB, N82, N85, N91, N92, N93, N93i, N95, N95, N95 8GB, N96, N97.

   talkonaut-s60-2nd.sis for Nokia's Symbian S60 2nd edition based mobile phones: N70, N72, N90

   talkonaut-s60-3rd.sisx for LG's Symbian S60 3rd edition based mobile phones: LG-KS10, LG-KT610, LG-KT615

   talkonaut-s60-3rd.sisx for Samsung's Symbian S60 3rd edition based mobile phones: I7110, i8510 INNOV8, SGH-G810, SGH-L870, SGH-i400, SGH-i450, SGH-i520, SGH-i550, SGH-i560

   talkonaut.CAB for Windows Mobile 5.x and 6.x.

For J2ME based phones please download:
   talkonaut.jad
   talkonaut.jar

For J2ME based phones with limitations on JAR size:
   mini version of talkonaut.jad
   mini version of talkonaut.jar

http://www.talkonaut.com/app/helio/talkonaut.html