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.
iOS: Understanding the SIM PIN. &NewLine; You can lock your SIM card so that it canât be used without a Personal Identification Number &lpar;PIN&rpar;. You can use a SIM pin to prevent access to cellular data networks.In order to use cellular data, you must enter the PIN whenever you swap SIM cards or restart your iPhone or iPad &lpar;Wi-Fi &plus; Cellular models&rpar;.hen restoring the device, you will need to unlock the SIM card to complete the restore process. The device and iTunes display the following prompts to notify you: To complete the restore process: 1  Disconnect the device from your computer. 2  Tap Unlock on the device.