Inserting a SIM card into an iPhone 5 without the tray is not advisable, as the tray is specifically designed to hold the SIM card securely and ensure proper connectivity. Attempting to insert the SIM card directly into the phone without the tray could damage the device or the SIM card itself. If the tray is lost, it's best to obtain a replacement from Apple or an authorized service provider.
no
No
No.
Yes, but only if you unlock you iphone
You put a sim card in it.
Yes, Yes you can.
any AT&T phone that can take that sort of sim card.
Yes, you can put pizza directly on the oven rack without a tray, but it may result in a crispier crust and potential mess from any toppings that may fall.
As long as it is AT&T, yes.
Put all your notes into an SD card
Look at the top edge of the iphone 3g. there is a long button, and a headphone hole. See the tiny hole between the two? stick a small object, such as the little pick that comes with it, in the hole, and the sim card holder will pop out.
If your 3GS is locked, you can't insert a SIM card.