Samsung service center trinidad

First of all, it is recommended to try and charge your tablet for at least 1 hour. Now try to start the tablet and if that does not start, then follow the step given below:
- Use a small, thin object, such as a paperclip, to press the recessed reset button located on the bottom of the tablet.
- If done correctly, the tablet will power off and restart once and you will able to see the screen.
If tablet still do not charge or start, it is recommended to contact 'Samsung Service Center' for further assistance or repair:
http://www.samsung.com/us/support/contact

GuruAid.com

You do not say what model it is
Check out the manual for your tab
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Take it to a service center for repairs, unless you know how to service it yourself.

Take it to a service center.

Sounds like corrupted firmware. Just switch OFF the device, and take the battery out from its compartment, and re-insert it after 10 minutes and check. If it do not help you, contact the authorized service center for Samsung Mobiles.
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Definitely, it has a problem with the LCD. Well, if that was already opened by the service center maybe, the reassembly of the device is not proper (maybe you were right, you got screwed by negligent service repair guy). But let me ask you, does that repair center an authorize repair center of Samsung devices in your place? Try to go to an authorize repair center, so you won't worry much about your tablet. That's my only advice 'coz I think it will be the best for your tablet and for you, too. 'Coz, if I will advice you to pry your tablet and go into technical stuff you might probably lost and your problem will get worst. But if you have the guts to do it, just use a precision tools and check if the LCD connections is properly connected by those repairmen you have deal with. And it is much better if you have a tablet lcd tester. But I'm pretty sure you wont try to exert an effort to buy a tester since you wont use it much. So, as I've said try to go to a certified Samsung service center.

my mama said that mayb ur need a new charger cuz Samsung is sending me a new 1 and I think that\'s y. I hav a 7 inch tab 2 n I love it but it stop charging so I don\'t no whats wrong but im getting a new charger so its all good and guppy now :) ill keep u updayted cuz I think its the chargers falt not the tablets!! idk if not then ill just reset my tab and cry my eyes out cuz that sucks big time I meen really who wanna reset there tablet? not mee! but what the hell..mayb a new charger will help the little baby...

Your device needs repair.

Contact Samsung for your nearest authorized repair center.