I have tried to replaced the new sim as advised but my network lock asking for a password. I'm getting stuck from here and don't recall what it is whereas looking again on the letter VM sent to me recently which only found the security pin number and personal unblocking key. I have wondered whether this is the code I need to input for the network as for my password. When I use these please should this not the case?
Thank you for your suggestion. I'm still confusing whether my personal unblocking key which is printed on the card sent from VM is the same as my password for me to type it in in order for the network to be active. So far I have made 2 attempts with default password but failed and have not tried the unblocking key yet. So this will be the final attempt if it is incorrect will block totally!? I'm using an old model of Samsung SGH- X460. It will be useful to know how to input the password in either for a series number or letter should it include.