Can a sim card it self be locked?
A SIM card is locked by 2 or 4 passwords
PIN1 and PIN2 are programmable by the end user the code is 4-8
digits long usually you have 3 attempts to get the code right, if
you lock PIN1 or PIN2 out you then need the PUK1 or PUK2 which is
the PIN UNLOCK KEY which is an 8 digit code provided by your
Service Provider get this code wrong 10 times and its time to buy a
new SIM card
Well this depends on what kind of "lock" you mean. A SIM card can be password protected (usually 3-6 characters long) by going into the Security Settings on your phone which is usually where you can chgange your phone's lock as well if it has one.....if you enable a SIM password this password is saved onto the SIM card itself which is a good security issue because if somebody steals your SIM card they can't just simply put it in a new phone and be ready to go....they'd have to know your SIM password in order to even get the phone to fully load up and connect to the network. Another thing that can be done is a SIM card can be locked due to someone putting in a wrong password too many times....if you ever get to this screen on a cell phone call customer care because if you try too many times you will fry your SIM card which would mean you have to shell out another $20 or so.....if that doesn't sound like what you meant than to my knowledge the answer is no but otherwise I hope this helps
Phone says no preferred SIM when I have one SIM in it. It's duos and I can't do anything in SIM card settings?
Can you change or spoof the IMEI of an unlocked GSM phone in order to use it with a SIM card that's locked to a different phone?
A SIM is not "locked to a phone" -- the phone is locked to use only SIMs for a specific network. In other words, any SIM will work in any unlocked phone. A locked phone will work with any SIM from the network it is locked to. Changing the IMEI (which is rumoured to be possible, but I am not sure) wouldn't make any difference -- if the phone is unlocked, you can already use…
You just got a blackberry that is open to any network but it wont accept my sim-card it says invalid sim card what do you do?
I just unlocked my phone. and put an optus sim in it to make sure it was unlocked. will the phone be locked to optus now?
It will, but only if the pay as you go SIM card actually works in the phone. Most phones these days tend to get locked to the network they were provided with, and sometimes even locked to the particular SIM they were provided with. Obviously, even if it does work OK, the monthly SIM will still need to be cancelled if you don't wish to continue paying for it.
It all depends if the phone is sim locked. There are never any restrictions on sim cards only on the phones you can use them in. If you have a phone that you want to use was originally from Telstra either prepaid or from a previous contract it wont be a problem however if your phone was previously for example on a Optus contract your mobile MAY be sim locked. It is not always the…
If you bought a cell phone would you be able to use a different SIM card that has already been activated for a Nokia phone to put in the razor phone?
As of version 3.0 of the iPhone OS there is an option under Settings -> Mail, Contacts, Calendars -> Import SIM Contacts. Obviously you need the sim card in the iPhone to allow this to happen Also be aware that if your iPhone is locked to a carrier, it will not let you import contacts from a different carrier's SIM card. (tested on iPhone 4, iOS 4.1)
I bought an unlocked Sony Ericsson s500i if I insert my old ATT GoPhone's SIM card into my new phone will the new phone get locked to ATT?
If a Nokia 6280 on 3 network is unlocked to use the O2 SIM while abroad can it be re-locked if you don't put the 3 SIM back?
Yes you can, but only if the new phone is not "network locked" or is locked in the same network that provided you the SIM card. Also, the new phone has to be compatible with the networks used by your provider, most important to use the same frequency bands, but also other services as internet access, mobile banking and so on.