Upgrade Nokia N95 to v20 firmware

25 February, 2008

After waiting for ages, I have just upgraded my 3-branded N95 (3 are a UK provider) to an unbranded v20 firmware. I think this means I’ve lost some of the X-Series stuff that 3 bundled, but I never used any of it, so I don’t really care.

I also came very very close to bricking the phone a number of times, which will teach me not to try it at 2am without planning in advance. However, this is roughly the process I took. It’s not perfect, I probably do Very Bad Things, but I’m 95% satisfied with the outcome.

N95 on v20 firmware

The instructions I followed were these (there are even some screenshots, unlike this wodge of text), but they don’t apply perfectly to the v12 -> v20 upgrade, although I am going to quote something, as it applies here:

Before I continue: a disclaimer: this is not supported by Nokia or by your service provider. The following procedure is undertaken entirely at your own risk and I take no responsibility if your phone ends up as a rather expensive doorstop.

Some rules (the last one won’t make any sense yet):

The steps:

The next time you put your memory card in it will attempt to initialise any applications you might have installed on it. They won’t all work. You will probably end up with some weirdly named installer files like 0000ards.sis – you should be able to delete them using the Application Manager.

The outcome:

Your N95 now runs v20 firmware. The benefits are a much, much faster camera, faster GPS, assisted-GPS, better memory management, auto-lock when you close the slider, good integrated search of all your content, better podcast integration with the music player, music player resumes a track from the position when you exited it last, and probably lots more that I haven’t noticed yet.

Also, I obviously messed something up because my SMS were previously stored on my memory card, but they’re now on the phone memory, with no apparent way of moving them back (s60v3 no longer has the C:SystemMail which you used to be able to just copy to E:System). Also I lost my podcast subscriptions (although not the mp3s), so it’s lucky I blogged about them recently.

The danger:

If you get a “Phone startup failed – contact the retailer” message after doing a restore of any part of your data, all is not lost, it just means that you restored some data which is not compatible with this firmware (you have, however, probably lost that data forever). Do this:

  1. Turn the phone OFF
  2. Press the Green call answer button, the * button, and the ‘3’ button together.
  3. Whilst holding them, then press the power button, and keep holding the other 3 buttons.
  4. Wait till the phone reboots.

many thanks to Google and “floatlite” for that tidbit.

This was the first time I’d done a firmware upgrade on a phone. It did not go smoothly, and I wouldn’t expect it to go smoothly next time either. My best advice is to make sure that any critical data is backup up separately on your PC in a plain-text format if possible (not just via PC Suite backup – this is a black hole from which you cannot retrieve data whenever you like).

See other posts tagged with general mobile n95 nokia and all posts made in February 2008.


27 February, 2008 at 11:30

Did you lose access to the unlimited Skype facility that Three offer? I’m guessing you did because you mention that you lost a few XSeries features. I absolutely rely on unlimited Skype calling, so wouldn’t want to lose that!

27 February, 2008 at 13:15

Doing the firmware upgrade wipes all your pre-installed apps so I no longer have Skype on my phone, but as far as I know it’s possible to reinstall it via Planet 3.

For what it’s worth, I typically use Fring for all my VoIP needs.

27 February, 2008 at 13:42

Thanks for the information, I will make some more enquiries before I go ahead with this. I also use Fring, but don’t have an unlimited data contract, so keep my Fring usage to when I have WiFi nearby, and use Three’s Skype otherwise.

03 March, 2008 at 05:37


I heard there is a sis package that will let you backup ALL your applications before you upgrade (instfast) however, there is no certificate for those i found on the internet.
any solution? thanks a milion

03 March, 2008 at 08:18

Nope, no idea sorry! You’ll have to wait until Nokia sort out the self-signing mess or apply for one yourself!

10 March, 2008 at 20:26

thanks for this it worked a treat! what theme is that? i like the wallpaper!

18 September, 2008 at 21:26

Thanks for this I’m doing it right now.
As for the backup options I would recomend using MOBILedit to backup everything.
I think I’ll be able to get everything back from it:
Phonebook, organizer, messages, even the files.

I ‘ll send new comment when I’m done 🙂

06 October, 2008 at 21:54

where did you get that wallpaper from?

07 October, 2008 at 12:27

It’s the FunSVG theme from here.

Göte Brström
04 December, 2008 at 21:34

It is now great after upgrading the firmware, Nokia N95 can find satellites in a few seconds! Before up to one minute!

Regards Emeritus Göte Burström