Question about Samsung Galaxy Tab 2 7in. WiFi Tablet, 8GB

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Why does my samsung 2 tablet have to be powered off to charge

Must be powered off to charge

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Difficult to diagnose without more information on the device's operating system version and what apps are installed on the device.

A faulty (or mischievous) app may keep your device so busy it'll use up electric charge more quickly than a simple wall charger can replenish. Under normal conditions, a full charge should be good for roughly 7 hours of mild tablet use. Is battery life dramatically shorter than this, even if you don't actively use it? Does it get unusually hot?

Other causes may be faulty hardware (battery, charging circuitry, charger, cables or connector); my gut feeling is on the misbehaved app, though.

Posted on Mar 20, 2014

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My 7 inch Samsung galaxy tablet will not come on.


have you tried turning off tablet with charger plugged in and letting it charge up. You should see a battery symbol come onto the screen with a pulsing level indicating the battery is being charged. hold in power till unit turns off then plug in charger cable into tablet and switch on charger at power point . Do not try and push power switch to power up tablet see if screen indicates charging is occurring. I have experienced this exact problem on a samsung tablet !

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Try Resetting the Device Cache Partition by booting in to Recovery Mode.

o turn ON in Recovery Mode:

Step 1: Power off device completely (You Might need to Keep it on charge)
Step 2: Press and Hold "power" + "Vol up" for 5 sec
Step 3: Notice it flash boot screen twice
Step 4: Enter recovery menu use vol up and down to navigate
Step 5: Press power button for confirmation
Step 6: Wipe cache partition.

if clearing the cache partition doesn't help, you can also try resetting your device by formatting it to factory settings (ALL DATA WILL BE DELETED). for this Repeat the Steps upto 5, then use Step 6: Wipe data and clear cache.

Post Thanks if it helps

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Hi, I charge my samsung tablet, may or may not use it. the battery icon does not show correctly. some times it says that "charge the battery" but i leave it aside and after for example one hour i check the...


You are likely running an old version of the firmware / ROM. See if Samsung has a new version, or if you are comfortable with rooting visit XDA Developers forums to learn how to get a newer version with more up to date power management and battery conditioning updates.

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Samsung galaxy tab 2 10.1 brought today and charging through computer keeps flashing a battery but then disappearing and making a disconnected sound from computer what do i do?


Samsung galaxy is a powerful device which require at least a 2A charger to charge it well. computer can only deliver 0.5A and thus is not enough power to charge your tablet. Connect it to the wall AC charger that come with the tablet and you'll be able to charge it just fine

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1 Answer

When I try to charge my samsung galaxy tablet a yellow triangle pops up on the battery sign


I had this same thing. The Batter image had a red line on the right side and the yellow triangle had an explanation point in the middle.

I searched the net and found a few solutions.

1. Hold the power button down for 30 seconds.

2. Hold the power button down and the volume down button at the same time for 30 seconds.

3. Just let it charge and over night and it should go back to normal.

I did all 3, in the order I wrote them. While in step 3, after about 5 minutes I pressed the power button and it showed that it was charging normal.

Hope this helps.

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