Be very careful with it. Check to see if the phone is puffed up. If it is in a case CAREFULLY remove it and check. I keep a glass oven safe casserole dish handy to drop the phone in and run outside. If the battery punctures it will heat up and catch fire. If it is puffed up stop using it and replace it ASAP. If not never leave it unattended while charging until you are positive the battery is not defective. You may have just had a lot of apps running in the background that heated the phone. I have left Pokémon Go on and it heats the phone fast and hot. Bottom line, it is better to be safe than have to deal with a fire.

This is an easy one. It is quick and painless to replace this battery. Samsung Galaxy A10 Battery Replacement

Always start with the easiest repair first. Try another HDMI cord. Plug in into a different HDMI port on the TV, Check the TV settings and make sure the HDMI ports are active (I can rename the ports to what I have connected to them i.e. PS3, PS4, PS5, 4KFVD and so on,) Hope it is this simple for you.

If you are connected to a wifi network, you are using the wifi. Are you stating that your cellular data only works when it's enabled but not connected to a wifi network? Do you see the 4GLTE icon at the top of your screen? Check Settings>Wirleless&networks and ensure the state of the cellular network is enabled. If it is and the cellular data is not working you can try to reset the network information by opening up your dialer and entering ##72786# and tapping yes. This will take you thru the activation steps once more and you should have your cellular data working once more.

Take a look at this tear down. The ribbon cable from the motherboard to the little battery board under the motherboard may need to be reseated. https://www.youtube.com/watch?v=_1-KTC7-KWQ Just looks like where I would head.

The magnetron may be bad. I would have it checked before using it any more.

Use some double sided tape. A command strip will work too. A very small dab of E6000 will provide a permanent hold.

Start by restarting the phone. Hopefully that will fix it. If not go into Settings, Navigation Bar and make sure the Navigation type you desire is chosen. If nothing else deselect then select it again to make sure the system resets your selection. Give your choices a try and with any luck all is well.

Open the door on the back and check for a jam or small piece of paper obstructing the feed. Pull out the paper tray and check for obstructions. In the paper try the paper needs to be as close to the feed end of the tray as possible and the tray in all the way.

This worked for me. If you are connected to a wifi network, you are using the wifi. Are you stating that your cellular data only works when it's enabled but not connected to a wifi network? Do you see the 4GLTE icon at the top of your screen? Check Settings>Wirleless&networks and ensure the state of the cellular network is enabled. If it is and the cellular data is not working you can try to reset the network information by opening up your dialer and entering ##72786# and tapping yes. This will take you thru the activation steps once more and you should have your cellular data working once more.