Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to connect a keyboard to galaxy tab 2 [title] Power on the keyboard and put it into pairing mode. [step] The process for this varies from keyboard to keyboard, but generally you'll need to turn it on. Some keyboards will also require you to press a " connect " button.

Ending1: [title] Open the settings app on your samsung galaxy tab. [title] Tap the " bluetooth " slider to toggle it on. Ending2: [title] Once you're in pairing mode, you will be asked if you want to charge your device prior to using it. [step] Put the speech read " if you're already charged up " on it. Ending3: [title] Press the " t " button to turn it on. [step] When it comes to pairing keys, it will depend on your computer's keyboard model. Ending4: [substeps] If the keyboard goes into pairing mode, " connect " will appear under the level " se " or " verify ", while other keyboards will look for it in averse mode. Wait until after the keyboard is compatible with the device to successfully connect it to your device.

Answer format: ending1/ending2/ending3/ending4