This makes the browser display a login prompt, but it doesnât display any other text thatâs in the response. (It only displays that response text if the user clicks âCancelâ.) When the user enters some credentials, the browser resubmits the same request to the same URL, plus it also adds this extra header: Authorization: Basic username:password. Note that the username:password bit is actually Base-64 encoded.
Sim card hold contacts, so pretty much everything will remain on your phone besides your contacs and your MEID which is your phone number.
Definition: SIM Card â SIM is short for Subscriber Identity Module. SIM cards are small removable smart cards that are used in many cell phones to store data like a customer's mobile phone number, the mobile phone company they use, and address book information.elated: More on the iPhone 4 SIM. The SIM card on iPhones can be removed by inserting a bent paperclip into the tiny hole in the SIM tray. On the iPhone 4, the SIM tray is on the phone's right side. On other models, it's on the top of the phone.