Can you perform the following checks for me?: Does the TV show any image when you turn it on, like a flash or the LG screen? Can you try shining a flashlight on the TV when it's on to see if the screen is just really dim? One quick potential fix would be to reset the TV to factory settings. Let me know what happens
Hi! Sounds like the charging port may be damaged, either by coming off the motherboard inside the tablet or damaged inside the port itself where you plug your charger in. If you can solder it is a DIY project. If not, you may need to get it repaired by a pro.
Your post was sort of vague and I have a few questions for you before I can properly assist you. (1) Has it been water damaged or spilled on at any point? (2) Have you opened it before? (3) Has it fallen recently? (4) Was it working before? (5) Are the non working keys in on particular area as opposed to random keys everywhere? It sounds like a hardware issue to me - meaning that either the keyboard is messed up internally and would need replacing, or that the cable connecting the keyboard to the motherboard came loose.
Sounds like your hard drive may have died or your OS has corrupted. Either one means that, if you have any important data on the drive, you should definitely stop!!! trying to make it work, and bring it to someone who can help salvage your data. Good luck!
Often, with bad screens it's not even worth fixing. However, this looks more like an image issue to me, considering the double image. Can you give me the model number so I can look at the boards that TV has? One of them is probably the issue.