So as being a kind of Symbian enthousiast myself, still using a Nokia E72, I decided to collect some Symbian software and some usefull trics here, free for everyone to download.
I found the explanation and tools on Symbian Underground. The use of Norton is the easyest, however I noticed that Norton does not want to startup if there is no working simcard in the phone. This method will allow you to install unsigned sis installers and give you access to hidden system folders. The goal is to install Rompatcher, a program to make changes in system files at runtime to remove certain restrictions. Rompatcher requires some files present in system directories that are not writable for users, but there is a workaround. It is based on the fact that anti-virus tools have write access to all directories. Hackers have succeeded in puting the required files in the quarantine list of the virusscanners, so a simple restore will put them there.
Symbian hack by Norton Security. By CODeRUS.
Now you can apply other patches as well. Just copy the patch file (usually with extension .rmp) to C:\Patches on the phone and it will show up in Rompatchers menu. Remember that these patches can be model and even software version specific, so if it works on one phone it might not work on another. One usefull patch I found for my E72 was a patch to remove the audio beep when recording a phone conversation.
|Patch||Comfirmed working on these phone models||Function|
|RemoveBeepE72.rmp||Nokia E72||Remove beep while recording a phone call|
|ActiveFile_1.44_S60_3X_5X-basic.sisx||File manager. Signed installer so no rooted phone required, but with limited access.|
|ActiveFile_1.44_S60_3X_5X-extended_unsigned.sis||File manager with extended rights. Developer certificate or rooted phone required.|
|ActiveFile_1.44_S60_3X_5X-manufacturer_unsigned.sis||File manager. Full access, rooted phone required.|
|AlternateDjVu_1.06_S60v3_signed.sisx||A djvu (a format mostly used for scanned books) viewer.|
|bubue_books_1207_231002.sisx||An epub reader.|
|CorePlayer-1.36.7427-unsigned.sisx||A videoplayer that plays most common videoformats and remembers where you stopped last time. Much better than the Realplayer that Nokia includes in its software. Unfortunately the development has ceased. An Android version was promised but never released.|
|dedit9_0.76_r12.sis||A text editor.|
|FieldTest_9.2_new.sisx||Fieldtest. Shows data from the network, a program comparable with the Netmonitor program on the 3310.|
|GoogleMaps-3.2.0.sisx||Google Maps client. The one without the already cancelled Google Wave.|
|Joikusoft JoikuSpot Premium v.3.10(977) s60v5 S^3 Express Signed by AirSac.sis||A program to make a WIFI hotspot from your phone.|
|largetime-1.04.sisx||An open source screensaver that shows a large clock. The sourcecode is here.|
|northpole0.86.sisx||A compass for phones with a magnetometer like the E72.|
|PhoNetInfo_4.0.0.sisx||Shows information from the phone and the network.|
|putty_s60v3_1.5.2.sisx||Putty is a ssh client More information on the Symbian version can be found here.|
|sic_ftp_3rd.sisx||An ftp client.|
|SIP_VoIP_3_1_Settings_S60_5_x_v1_0_en.sis||Advanced VOIP settings for S60v5 phones.|
|SIP_VoIP_3_1_Settings_Symbian_3_v1_0_en.sis||Advanced VOIP settings for Symbian^3 phones.|
|SIP_VoIP_3_x_Settings_v2_0_en.sis||Advanced VOIP settings for S60v3 FP2 phones like the E72.|
|SIP_VoIP_Settings_v1_2_en.sis||Advanced VOIP settings for S60v3 and S60v3 FP1 phones like the E51.|
|Skype_S60_3.0_v220.127.116.11.sisx||A Skype client for S60v3 (the non-touchscreen phones).|
|skype_S60_5.0_v2.0.06.sis||A Skype client for S60v5 (the touchscreen phones).|
|Symella_1.41_2009-12-11.sisx||A Gnutella client (watch your data usage!). The sourcecode is here.|
|SymTorrent1.50_2011-03-05.sis||A torrent client (watch your data usage!). The sourcecode is here.|
|Youtube_2.4.10.sisx||Youtube client for Symbian.|
Smartphoneware has a nice collection of Symbian programs available. You can download free trials, and here is a free keygen to register them.
|Jar file (actual program)||Jad file (sometimes required)||Description|
|cryptosms1.1.1.jar||cryptosms1.1.1.jad||A program to send encrypted sms, with elleptic curve public key's. See Cryptosms.org for more information.|
|Youtube_Downloader_v1.1_10.jar||-||A Youtube downloader.|
The last file for Europe, with empty data, is called 18.104.22.1682.europe.cdt. You can rename the 22.214.171.1244.europe.cdt file to 126.96.36.1992.europe.cdt to prevent the updater from overwriting it if you run Nokia Maps in online mode.