Jailbreak for Nokias discovered
WORKING ON a hot tip from a reader, the INQ has discovered a means of jailbreaking Nokia handsets – like the N95 – which are restricted by operators in the range of applications they offer.
The most notorious example of this practice has been the removal of the 'Internet Telephony' app on Wi-fi enabled Nokia handsets. That's meant that VoIP software – such as Truphone, won't work. Well they will now.
The tip directed the INQ to a British site called B-phreaks which offers a handy Nokia utility tool called the Nemisis Software Suite. One of the facilities which this app offers is the ability to pick a different product code and install that into the handset.
This tiny change effectively jailbreaks the handset, enabling its owner to go onto the Nokia web site and download the very latest version of the Nokia firmware. In the INQ's case, the N95 jumped from version 13 to version 21.
The tool for installing the new firmware is the 'Nokia Software Updater' which is freely available on the Nokia web site.
To our great delight when the new software was installed, the Internet Telephony app made a magic appearance and Truphone's software started working fine.
Here's a crazy thing, though. When a handset's firmware is updated, naturally it loses any personal data stored on the phone. Such as all of your contacts and telephone numbers. To prevent this from happening, it's possible to store all user data on the handset's memory card and then restore it again.
Bizarre side-effects mean that if you do this restore, the Internet telephony app disappears again. So just copy all the telephone book entries to the memory card and then copy them back to 'Contacts' again.
Incidentally, this whole procedure isn't for the feint hearted and it is entirely possible to corrupt the handset's firmware completely. Especially if you let the battery go flat during the 15 minute installation process. So be warned. Carrying out this modification almost certainly will invalidate the handset's warranty.
Curiously, the hack was originally outlined as a means of installing Nokia's Music Edition software on old N73 handsets which didn't possess it.
The full hack is outlined in this blog. µ
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Most users of the afore mentioned handset have been using this application for some time now as a way of 'de-branding' thier handset and enabling newer funtionallity. (Flash lite 3 streaming anyone??. )
You may have problems if you need to repair your phone and take it back to your Network provider, but the advantages far outweigh the cons, esp if your network provider is sluggish in releasing branded S/W for your phone.
Some of us have been using NSS for years to debrand nokias .
Just did this on my N82 the other day to get the latest firmware, as O2 haven't provided an upgraded firmware and the latest vanilla Nokia one adds geotagging as well as fixing a few bugs.

Works like a charm although I can confirm it takes a good long while (it took at least 10 minutes to download the new firmware.) I just left the phone plugged in to the charger whilst it went.

Newer nokia phones will even keep the settings too so no need to even restore from the memory card.

One thing I did find though, I needed to install an older version of the nokia updater to get NSS working, the newest versions drivers seemed not to work with NSS.
This hack's been kicking around for many moons, try googling 'N80 to N80i upgrade. I updated the firmware on an N80 to the N80i (Internet edition) for similar reasons a good year ago. 

Get with it guys !
Hi,

Is this tool useful to break the network lock?
Blimey i used this program to change the branding on my orange phone sometime last year 'cos Orange would only let me update to v13 of the software when v21 (with various performance enhancements) appeared.. iir it didn't take much googling to find! very cool tho took seconds to do. unlocking is another story entirely tho!
Glad to be of service :-D
Lots of us have been using NSS for years to debrand Nokias... :)
Since getting my first n-series phone, I've used nss to debrand about 20 of my friends phones so they get the generic Nokia firmware. Works a treat. :)
No, sorry mark, network lock is something else entirely!

I haven't found an easy way of doing that with software. Although you can always give Simable a try.
Okay guys, I knew from the date of the post that it's an old hack. However, the implications are new. For example, the settings wizard makes an appearance. Which makes the SIMable unlock an even easier affair. Incidentally, trying to use NSS to unlock a Nokia is pointless since SIMable will break rhe lock but not your warranty. Incidentally, if you want to save yourself time unlocking Nokias, backup an unlocked Nokia to a memory card. Put that in a handset you want to jailbreak and then restore. All those missing apps should reappear.
Hi - to you wiseguys, I have used NSS on my Vodafone branded Nokia N95 8GB to get another product code. A plus would be if the "Internet Telephone" suddenly would appear as well. As I understand I need to upgrade my firmware (mine is V 15.0.015) in order for the new product code to work (and perhaps also the Internet Telephone to appear?) but there is no new update when I use Nokia Software Upgrader. Is there at all any "explain-like-I-am-a-3-year-old" guidance out there on this?
Thanx guys.