What you should know is that if you check your phone network settings, it's always on DUAL MODE which means it automatically access Edge and 3G which makes it difficult for the phone to have network on it whenever the area your are has limited network services.
All you have to do is goto Ctrl. Panel (Control Panel) ' Settings ' Scroll down' Click on Phone' Scroll down ' Click on Network ' Now Click on Network Mode ' You will see three types i.e Dual Mode, UMTS(3G), GSM Choose the GSM and immediately you will start having Full network on your phone again, you can follow the same process to switch back to either Dual Mode or UMTS(3G) - See more at: http://www.gistplanet.com/2012/02/solution-to-network-problemissue-on.html#sthash.VWEAxQ3V.dpuf
Warning :
Do not enter any wrong unlock codes on your Nokia E5 mobile phones. If
you enter over a certain amount of wrong unlock codes on your Nokia E5
mobile phone, your phone may get hard locked and sometimes become
unusable.
1 - Switch on your Nokia E5 without any sim card.
2 - Don't bother as to what is displayed on your Nokia E5.
3 - Compose #pw+CODE+1#.
4 - The Nokia E5 would then display the message "SIM Restriction Off" and will be unlocked!
Note :For Nokia E5 mobile phones locked to the network Fido or Rogers in Canada follow these instructions :
1 - Switch on your Nokia E5 without any sim card.
2 - Don't bother as to what is displayed on your Nokia E5.
3 - Compose #pw+CODE+7#.
4 - The Nokia E5 would then display the message "SIM Restriction Off" and will be unlocked!
The letter p appears if you press the button star(*) three times quickly
The letter w appears if you press the button star(*) four times quickly
The symbol + appears if you press the button star(*) two times quickly
The CODE you need to enter is the unique unlock code for your Nokia E5
Each Nokia E5 mobile phone has an unique unlock
code. You can buy the unique unlock code for your Nokia E5 mobile phone
using the form above.
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