I’ve been having a le pan tc802a for about 3 years and last night I tried to turn it on, but it didn’t. So, I held the power button and it turned on. I thought “oh maybe it ran out of battery” but it comes on with 100%. Soon I take a little break and I come back to turn it on but instead of it going to sleep it completely shuts down to where I have to hold the power button to turn it on again. (The break was maybe 5 minutes long at ~90% but I fully charged it and it still did the same thing. I also tried to turn it on while on the charger and to let it sleep(1 minute of inactivity) to see if it worked but it still powerless off.