Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to use your samsung galaxy tab as a phone [title] Check for sim card support. [step] Galaxy tablets have two versions: one that supports a sim card and one that doesn't. Refer to the tablet's user manual to see whether the android device you have supports the said feature or not.

Ending1: [title] Download the samsung, iphone, and android device software. [step] These are available either in the phone app drawer (" more info ") or on the tablet home screen. Ending2: [title] Install smart app downloads to your tablet. [step] The app itself is not connected to your telephone or mobile. Ending3: [substeps] You can also look around the sides of the tablet or behind its battery for any slot that a sim card might fit in. It's a small slot only a little larger than that of a memory card, and is very easy to find. Ending4: [substeps] Tablets are only compatible with phones that support each version of the device. If the tablet you use has a different feature, it doesn't operate as well as to support each version.

Answer format: ending1/ending2/ending3/ending4