Simple hack for S60 phones that enabled installation of unsigned SIS files! CODeRUS hack using Norton Security. For older version (S60 3rd etc.), a good option is also ROM Patcher+ 3.1.
OBSOLETE THE SITE IS NO LONGER AVAILABLE: Or register at Signed Symbian and sign SIS for your device identified by IMEI.


Version 0.9.1 (2013-08-20)

VersionFiles
S^3/Anna/BelleSIS
S50 5thSIS
S60 3rdSIS

For S60 3rd FP1 and older, you may need to install POSIX API component from Nokia OpenC plugin called PIPS: pips_s60_1_7_SS.sis (extracted from: Nokia Open C plugin)

Version 0.9.0 (2013-07-08)

VersionFiles
S^3/Anna/BelleSIS
S50 5thSIS
S60 3rdSIS
For S60 3rd FP1 and older, you may need to install Open C plugin (aka PIPS): pips_s60_1_7_SS.sis (extracted from: Nokia Open C plugin)

Version 0.8.0 (2011-12-30)

VersionFiles
S60 3rdSIS
Symbian^3SIS

Version 0.6.0 (2010-03-31)

VersionFiles
S60 3rdSIS
S60 UIQSIS

Version 0.5.3 (2009-12-21)

VersionFiles
S60 3rdSIS
S60 UIQSIS

Version 0.5.2 (2009-02-01)

VersionFiles
S60 3rdSIS
S60 UIQSIS

Version 0.5.1 (2009-01-23)

VersionFiles
S60 3rdSIS
S60 2ndSIS
S60 UIQSIS

Version 0.5.0 (2009-01-20)

VersionFiles
S60 3rdSIS
S60 2ndSIS
S60 UIQSIS

Version 0.4.0 (2009-01-17)

VersionFiles
S60 3rdSIS
S60 2ndSIS
S60 UIQSIS

Version 0.3.0 (2008-11-18)

VersionFiles
S60 3rdSIS
S60 2ndSIS
S60 UIQSIS