FREE Nokia DCT4 Unlock code Calculator!
If you want to unlock one of the following Nokia phones then please read on:
1100, 2300, 3100, 3200, 3300, 3510, 3510i, 3650, 3660, 5100, 6100, 6220, 6230, 6310, 6310i, 6510, 6600, 6610, 6650, 6800, 6810, 6820,7200, 7210 ,7250, 7250i, 7600, 7700, 7650, 8310, 8910, 8910i, N-GAGE (and all US/Canadian Variants of those listed)
Update!!
Cybers software will now unlock 3650's on AT&T. (I have updated the provider list). A new method of calculating codes for Virgin (UK), Fido (Canada) or Debitel (Denmark) has been discovered. Cybers software detailed on this tutorial CAN NOT unlock these! I am happy to calculate the correct code for you (for free). All you need to do is register for my new forum and place a post in the general GSM section stating your IMEI (the handsets 15 digit serial number - found under the battery), model of Nokia and the network your phone is locked to.
Click here to register to my forum and post your code request!
Alternatively if you want to calculate the codes for these difficult networks yourself then please download and use the New SmartDCT4Calc or use the latest version of CyberGSM's software version 2.7! These are the best Nokia unlocking software!
For all other networks please use the standard tutorial below:
Please read ALL this tutorial before you start entering any codes into your phone - will prevent any dissapointment :-)) !
Finally It has been released for free!! Anyone can now calculate their own DCT4 Nokia unlock codes. Download CyberGSM and Hollowmans software HERE! (this is their latest release 1.4). I have chosen Cybers software (there are many others now - see my downloads section) because it seems to work on all Windows operating systems including XP! Also it is the most stable and user friendly!
To calculate the correct unlock code you will need to enter into the software three pieces of information about your locked phone:
1) Lock type:
This is either 2 or 5. Always select 2 unless your handset is a 7650, 3650, 3660 N-gage, 6600 in which case select 5.
2) IMEI
The 15 digit serial number of your handset. This can be found by pressing *#06# into your handset.
3) Network provider
This refers to the network your handset is locked too. For UK providers
Orange = 23433
T-Mobile = 23430
Vodafone = 23415
O2 = 23410
Virgin = 23400 (although can vary from handset to handset)
The latest version of Cybers software makes selecting the correct network code very easy indeed! Just select the network your handset is locked to using the drop down listboxes.
You can view a page containing a complete world wide list for all network provider codes HERE. (thanks to Yeldar)
Ready?
Step 1
Unzip cyber & hollowmans software and double click the file named: DCT4 Calculator 1.4.exe
Step 2
Complete the IMEI field, and then select the country and network your handset is locked too using the drop down list boxes. Now you need to select a lock type: either 2 or 5. Always leave this as type 2 UNLESS the phone you want to unlock is a 7650 or 3650 in which case select type 5. You will also See a check box - make sure this REMAINS checked (as this means the software will calculate the latest version 2 codes not the older less reliable version 1 codes) See the screen shot below!