
There is currently no information confirming that your current cell phone provider would know that your cell phone has been unlocked. Meanwhile if you were to take your cell phone in for servicing to your network vendor, they can physically access the features on your mobile phone, and can get it to display the phone’s current lock status.
Your current cell phone provider probably would not care if you unlock your mobile phone as long as you do not break your current cellular service contract. That is one of the bizarre things about unlocking your cell phone that makes locking your cell phone so unnecessary.
Your current cell phone provider locks your mobile phone to their network to prevent you from breaking your contract with them and taking your business elsewhere.
It is perfectly fine that the name of the previous network service provider appear on your mobile phone, even after you have unlocked. The logo has been programmed into your phone by the original service provider as a splash screen before it was sold to you. This logo has no impact on your unlock service.
Unlocking your phone reverses the electronic barrier put in place by the original service provider. Unlocking your phone does not effect your splash screen and vice versa. The good news is you can get remove the splash screen. See if you can find it in the phone’s manual on how to change the splash screen, or consider calling the mobile phone manufacturer and have them give you step-by step instructions on how to remove the splash screen off the phone.
For a complete list of countries and GSM networks where you can use your unlocked phone click here.
GSM services are available in over 207 countries.
Check the GSM World web site to see if the country you are interested in has GSM service available, and what frequency the GSM service(s) work on.
North American GSM cell phones work on 1900 MHz and sometimes also 850 MHz. Most other countries have GSM networks on 900 or 1800 MHz.
Check on the website of your mobile phone manufacturer to see which frequencies your model phone supports.