sir whenever i download any application my cellphone displays this message " no user certificates on SIM and Mobile" i have Nokia 7210 supernova. what does it mean?
buy a new Sim card or consult a local mobile phone store
a phone with these two facility can work in GSM with sim card and can work without sim card in cdma mode
sims card error means your sim card is put in your phone wrong.
go fck yourself
A cellular phone, no matter what the provider, requires a SIM cart to be operational. Your provider may be able to give you a new SIM Card for the phone, if it is unlocked to work with that network.
Sims are a card that holds the phones number and basic information. A sim free one just does not have this option so a store has to switch numbers from phone to phone.
A SIM free phone is one that does not have a SIM card included with the phone. This type of phone may not be able to be used with all networks. Some networks require a SIM card.
that means you have saved a number onto your phone not your sim.
A sim free mobile is a mobile phone that can be bought which is unlocked to any network. i.e: can be used on any network, and not specifically one eg; o2. ~ AshJordan
It may mean either the contacts on the SIM are dirty OR the SIM hasn't been inserted correctly - in which case, wipe the contacts with a soft cloth, and re-insert it into the phone.
Yes, that is usually the case with a SIM phone.
my phone says sim barred when i try to send a text