Hi! We need a bit more information to give you any real kind of answer as there could be so many reasons it’s not turning on for you at this point. Did you drop it recently? Any water or liquid exposure or damage? How long has it been since you last had it turned on/charged and how long did you attempt to charge it for this time? Sometimes when a device’s battery is completely drained, it can take a bit longer for it to start showing anything on the screen. Is the charger fitting properly into the device? If it feels loose or not going all the way in, your charging port may need cleaned. It could also potentially be a motherboard issue: I’ve seen some iPhones come in for repair with a bad IC causing it to not want to charge or power on after dying, though I forget which IC that is. Etc. Let me know.

I agree with @oldturkey03, this kind of issue is usually caused by a bad battery. However, in the meantime, have you tried to boot to recovery mode? To do so, when the device is turned off, press and hold the volume up, home, and power buttons until the Samsung logo appears, at which point you should release them. From there, a couple things could happen: 1) If the phone goes into recovery mode properly and remains there without boot looping, this could be a software issue. Try clearing your cache. It should be one of the options that will pop up once recovery mode loads, will read something along the lines of “clear cache”. If clearing the cache does not work in this circumstance, and you have a recent backup of the phone and/or do not need the data on the device, it may be worth it to try and factory reset through recovery mode. 2) If the phone does not boot into recovery mode or does but restarts itself without you telling it to do so, your phone will need hardware repair/replacement. You could order a...

If you know how to open the phone, try unplugging the battery and pressing the power button for 1 minute to drain any excess power in the device that may be causing this.

Sounds like the TV is having firmware problems. If you have a spare USB drive laying around, it may be worth it to follow this guide to update the firmware.

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.

Are you tech-savvy enough to open it? Sounds like the screws may need tightened, either on the LCD's side or on the mobo side.