Activation of new glo SIM card is necessary, else your glo sim will not work even after successful sim registration at a dealers shop or glo office.
To activate your new glo SIM, simply dial the USSD Code : 125 on the glo line.
If you hear anything like “Welcome to Globacom…”, it simply means your glo line has been activated and you can start using it for calls, messages and for internet browsing.
Remember, you must have successfully registered your SIM before this can work. If not, if you dial 125, you will be told to go and register the glo line.