How to selecet Mobile network manually in Android, iPhone, Blackberry, Windows Phone, Feature Phone

Android:
Setting > Wireless and Network > Mobile Networks > Network Operator > Search Networks >Etisalat / KSA 03 / 4003
iPhone:
Setting > Carrier > Uncheck 'Automatic' sign > Select > Mobily / Etisalat / KSA 03 / 420 03
Blackberry:
Manage Connection > Mobile Network Options > Network Selection Mode > Manual > Select Automatic Mode When Manually Selected Network is Not Available > No > Select > Mobily / Etisalat / KSA 03 / 420 03
Windows Phone:
Settings > Cellular > Network selection > Mobily / Etisalat / KSA 03 / 420 03
Feature Phone:
Menu > Setting > Network Selection > Manual > OK > Mobily / Etisalat / KSA 03 / 420 03