A Nokia 5235 can be unlocked using an unlock code. A Nokia 5235 unlocked will work on all GSM phone networks. By default all Nokia 5235′s that are SIM based come with a SIM lock that prevents them from working with any SIM card than the default provider. The free unlock instructions provided in this phone guide will remove this SIM lock from your Nokia 5235 and effectively unlock it.
Since you will need an unlock code for your Nokia 5235, you will also need your Nokia 5235′s IMEI number which is used to calculate your unlock code. You can find the IMEI number by typing *#06# and hitting enter on your 5235. You can then probably call up your phone carrier’s support line and request an unlock code. In exchange they will request your Nokai 5235′s IMEI number which you just attained. If you want to learn more about getting free Nokia unlock codes read my previous phone tutorial.
Once you have a working unlock code, you can use the following instructions to unlock your Nokia 5235:
How To Unlock Nokia 5235
1. Power on your Nokia 5235
2. Type #PW+UNLOCKCODE+1# (Where UNLOCKCODE is your unlock code you acquired earlier)
3. Your Nokia 5235 mobile phone will say “SIM Restriction Off”
4. Enjoy your Nokia 5235 unlocked!
You can see the full specifications of the Nokia 5235 by going here.