CLASSIC MOBILE KNOWLEDGE • PRESERVED SINCE 2002Independent Nokia unlocking resource
Nokia unlocking • Since 2002

Free Nokia unlock codes.
Classic guides, preserved.

Unlock supported classic Nokia phones with our free code calculators. Explore the original guides to network unlocking, security codes, data cables and flashing — preserved from the early days of UnlockMe.

For supported legacy handsets — not modern smartphones
Illustration of a classic navy Nokia handset showing Unlocked, beside an open padlock.

Network unlock calculator

Generate network unlock codes for supported DCT3 and DCT4 Nokia models using the original UnlockMe calculator.

Open calculator →

For supported classic Nokia models and original UK networks.

Security code calculator

Forgotten the handset security code? Try the historic master-code tool for compatible Nokia models.

Open calculator →

Legacy devices only. Compatibility varies.

Guides from the golden age.

Explore the original Nokia unlocking, flashing and data cable guides from the early days of UnlockMe.

01 / DCT3

Unlocking with a data cable

Older Nokia handsets, cables and tools.

Read guide →

02 / DCT4

How DCT4 unlocking worked

Codes, boxes and the early unlocking scene.

Read guide →

03 / SOFTWARE

Nokia firmware flashing

A look back at firmware and flashing.

Read guide →

04 / HARDWARE

Data cables explained

F-BUS, M-BUS and connectivity.

Read guide →

05 / HISTORY

Unlock code variants

Version 1, Version 2 and Griffin.

Read guide →

06 / HELP

Frequently asked questions

Start here if you’re new to the archive.

Read guide →

THE UNLOCKME STORY

From data cables to free unlock codes.

When many Nokias were tied to one network, unlocking often meant a data cable and specialist software. Free calculators changed that: for supported handsets, a code based on the IMEI and network could remove the restriction from the keypad.

Since 2002, UnlockMe has helped explain those tools through practical guides and downloads, following discoveries shared by software authors and GSM forums.

Read the full UnlockMe story →

FROM THE ORIGINAL SITE NEWS

9 JULY 2003

DCT4 codes go free

After reporting £60 calculators that March, UnlockMe announces a free DCT4 release.

29 JANUARY 2004

DCT3 follows

MONO’s free online calculator lets supported older Nokias be unlocked without a cable.

22 MARCH 2009

UnlockMe’s own online tool

The site launches its free online calculator for older Nokia handsets.

News & updates

A new chapter for UnlockMe, with the original site news preserved below.

Latest updates

29 October 2026 · Site bulletin

A new chapter for UnlockMe

UnlockMe is getting a refresh. The new WordPress site is taking shape on staging, with a cleaner layout, easier navigation and a renewed focus on preserving the original Nokia tools and guides.

The existing live calculators remain available while work continues. The original site news is being kept here too — a record of the releases, experiments and discoveries that made the early mobile unlocking scene so interesting.

From the UnlockMe archives

Historic site news · 2003–2017

Original updates from UnlockMe’s early years, preserved as part of the site’s history. References to downloads, services and external websites reflect what was available at the time.

These are historical announcements, not current offers. Old prices, telephone services and download links may no longer be valid.

Update 01/1/2017

The site has had problems with Google / chrome. I have now fixed these and will also fix the download links soon (i need to find the source files)U

Update 28/11/2011

So Nokia have finally relaeased their first windows Phone 7 device – Nokia Lumia 800. This comes loaded with the latest OS 7.5 (AKA Mango). Check out my unlock Nokia Lumia 800 & 710 article HER E.

Update 22/03/2009

I have finished my online unlocker. This can be used to calculate unlock codes for older Nokia handsets. Of course It's FREE! Online Unlocker HERE .

Show all historic updates — 32 more entries

Update 07/02/2009

I have updated the Nokia software versions section . The table in this section shows the latest version for all Nokia BB5, DCT4 & DCT3 handsets. Also a small update to the 3G iPhone section , explaining V2.2.1 and YellowSn0w.

Update 07/01/2009

I have updated the 3G iphone section – FREE software unlock solution now available even for software version 2.2

Update 27/11/2008

I have put together a simple tutorial on you to unlock your 3G iPhone using Unlock SIM's. Apple are making it harder with newer software versions but it can still be done. Read my iPhone unlocking guide here.

Update 10/11/2008

Updated security code section. Added an online tool to generate your Nokia master code. This will let you reset your security code. Click here to try it.

Update 03/11/2008

Started to build a "Nokia Unlock Wizard". The plan is to offer visitors a list of all options that are available to them to unlock their Nokia phone. The unlock method will be dependant on the Nokia Model. Also working on my own online unlock code calculator. IT WILL BE FREE ! Finally I have Started to put together a Nokia generation list .

Update 20/10/2008

Beginning to update web site – built this in dreamweaver. Hope to improve the look with time.

Update 08/01/2007

Nokia ASIC 11 handset, can't be unlocked by code. These include: 1110i, 1112, 1600, 2310, 2610. Read my article HERE.

Update 28/10/06

Nokia Security Code generator added. Have you forgotten your security code? No problem this little gem of a program will generate help! Download and tutorial HERE !

Update 26/06/04

Hollowman's unlock calculator has now been updated to version 5.4 Get it from the downloads section Now!

Update 17/05/04

Another update to Hollowman's unlock calculator. Version 5.1 is now available. Get it from the downloads section Now!

Update 25/03/04

I have finished my new project. For those that need to calculate codes away from a computer (or simply don't have the time to use the programs featured on here) I have set up hotline service that will calculate unlock codes LIVE during the call. 0906 550 1281 Calls cost £1 per minute. Mobile costs may vary. If you can't get through on your mobile, call from your home or office phone. You must be 16 or over. The average call length is approximately 5 minutes. Be sure to have the bill payers permission before calling.

Update 11/02/04

Finally you can now calculate Nokia DCT3 unlock codes free! Even without the need for an internet connection. Check out Unique's excellent software, you can get it from my downloads section. I have also added the latest update to Cybers software (now version 3.5) and SmartDCT4Calc (now version 2.18). For information on how to use DCT3 unlock code software read my new section: www.unlockme.co.uk/dct3free.html

Update 9/02/04

Many updates! I have updated the downloads section and added a new free version of SmartDCT4Calc, the latest version of MadOS so anyone can calculate DCT3 and DCT4 Nokia unlock codes directly from a 3310 (just flash a small file to your phone). I have even finished writing my unique article on the history of DCT4 codes and the reason why we have different code variants, read it here! I have updated the links section, there are now two free online unlock code calculators that will generate DCT3 codes!

Update 29/01/04

FREE NOKIA DCT3 CODES INSTANTLY! Well its finally happened!! A free Nokia online unlock code calculator for DCT3 Nokia's has been released!!! (All thanks to MONO). check out his site: http://www.trycktill.com/eng/ and also check my basic tutorial for beginners: www.unlockme.co.uk/dct3free.html

Update 19/01/04

CyberGSM has updated his Nokia DCT4 unlock code calculator AGAIN. check out the downloads section to get version 2.7. This version now allows users to enter in their own Box serial ID (advanced users only will need this facility but a great inclusion).

Update 16/01/04

Check out the downloads section for CyberGSM latest DCT4 calculator Version 2.5! I have added a News / Articles section, I will add to this when I get more time. Software Versions section updated check here! I have also updated both the data cable section and the links section.

Update 06/12/03

I have finally found time to write a detailed FAQ section that will be helpful to new all newbies! Read it HERE. I have also updated the DCT4 list in the data cable section.

Update 27/10/03

This is the long awaited upgrade of CyberDog and Hollowmans DCT4 calculator (the previous version 1.4 is featured on my tutorial). Nokia unlocking has never been so easy! Just when we thought an unlock code calculator could not get any better Hollowman surprises us all! This will not only calculate Nokia codes but will also calculate codes for Siemens ST55, CL50 and Panasonic GD55! This is still a beta version so please post any bugs in the support forum so hollowman (the author) can view the feed back! See the screen shot below. Get it from the downloads section Now!

Update 18/10/03

I have just uploaded possibly the best DCT4 calculator yet (without a doubt the most up to date)! Its called SmartDCT4Calc. This unlock code calculator will even provide the correct codes for you to unlock the Nokia N-Gage (locked to virgin UK)! You can find this in the downloads section now!

Update 09/07/03

The DCT4 Nokia Unlock code calculator has been released for FREE!

Update 07/07/03

WORLD GSM EXCLUSIVE FOR ME!! I HAVE SUCCESSFULLY DISCOVERED HOW TO ACTIVATE ALS ON ALL DCT4 HANDSETS USING JUST A M/F BUS CABLE. (ALL PREVIOUS SOLUTIONS REQUIRED THE HANDSET TO BE FLASHED!) CHECK OUT MY LINE TWO SECTION TO SEE HOW!!!

Update 24/06/03

Free unlocking offer has now been suspended until I get more time. I have almost finished my DCT3 flashing tutorial – I will upload it as soon as possible. I will also update the MCU matrix to include all the latest software versions this week.

Update 02/05/03

Downloads section now includes flash files for Nokia DCT3 handsets(along with much more)!! Check out the downloads section HERE I have also updated the software versions table so that you can see if your Nokia phone has the latest version or not! (its now very clear and distinguishes between DCT3 & DCT4) See the MCU matrix section HERE

Update 15/4//03

FREE Nokia Unlocking Now Running! (see above) Also small update to the DCT4 unlocking section. New auto-detecting 'super clips ' have been released. NB. These 'super clips' supercede the previous swordfish clips.

Update 30/03/03

Finally finished writing the blacklist/barred handset section. Its an informative read (even if i do say so myself). Check it out here!!

Update 25/03/03

DCT 4 unlocking section has been slightly updated! You can now own your own DCT4 unlock code calculator for as little as £60 in p&p!! Visit the DCT4 unlocking section HERE . I have also updated the activating line two section and confirmed the difficulty in activating line two on newer DCT4 handsets! Read about it HERE . MCU Matrix also updated, do you have the latest software version in your Nokia Handset? Check HERE

Update 6/03/03

Site is moving on nicely. I have added a very useful table called MCU Matrix . This table shows you the latest software versions of all Nokia handsets. Also I have finally finished the Line Two (ALS) tutorial .

Update 19/02/03

The unlocking scene for Nokia DCT4 handsets has moved forward quickly over the last 3/4 weeks so I have updated my DCT4 unlocking section so that it now contains the most up to date information on the web. New unlock clips have been released that will unlock absolutely ALL DCT3 and DCT4 handsets INCLUDING 6310i v5.22 and the 3510i. Code generators are now available for as little as £90! For more details check out my DCT4 unlocking section HERE

Update 17/02/03

Its been a while since i have had time to update the site, but its on the move again. I have finished the security code section see HERE

Update 29/01/03

DCT4 flashing page is now online HERE , I will continue to update it and tweak it to polish it up.

Update 29/01/03

NFADER 1.4 released and available for download. Now supports all DCT3 handsets including 3210. Fading LED's tutorial updated. See the tutorial HERE

Update 23/01/03

I have updated the Best GSM sites section. This now has links to the best GSM forums and some great sites to download your nokia flash files. Also some good sites to purchase cheap unlock solutions click HERE to go to the GSM Sites section.

Site counter

397 hits