If battery life is not the problem, a soft reset may correct the “won’t turn on” issue. Hold the VOL- (volume down) button while pressing the power button. This will put the device into RECOVERY MODE. Sometimes just entering recovery mode and exiting is sufficient to correct your issue.
Don’t point that at yourself again. There may pressure behind that stuck BB and like the old movie “A Christmas Story” says, “You’ll shoot your eye out kid.” You will have to disassemble the BB gun and use a soft material to push it out, like a small diameter wooden dowel.
OP suggestions are good. Also, try deleting the driver in device manager and let Plug ‘n Play reset the driver. Delete old drivers,too, if able. I have seen one manufacturer’s driver degrade another. Ie, did original owner install an “AC” adapter with drivers and left drivers in place when he sold the laptop with the built in “N” hardware? Alternatively, try WiFi with your own USB adapter that does not use the system antenna.
I assume it is an Epson printer, because iFixit shows me an Epson printer on the page and you didn’t tell us. Might just be an advertising thing from iFixit. Epson is strict about buying their ink. Are there any empty cartridges in the printer? Even if you only want to print in B&W, all ink carts must be present and have ink…
Can’t say for sure, but I expect you can find a replacement assembly at a good hardware store. If they don’t have a replacement, you may need to replace the entire slider system. Not a big deal, more trouble than cost.
Here’s what I did to reactivate my Home button. I surmised there was a buildup of crud in the switch mechanism that needed to be cleaned out. I chose 91% isopropyl alcohol because it was a high grade solvent that would mobilize the crud without leaving a residue or attacking the plastic. Don’t use plain rubbing alcohol because it has oils in the alcohol to facilitate “rubbing.” 1) Turn the unit off. 2) Take a napkin soaked in IPA and daub the raised portions, allowing a little to slip into the slots. 3) Before the IPA evaporates (and it will evaporate quickly!), work the button repeatedly. 4) Repeat as needed Each cleaning cycle, things got better and after three, operation was great - took 5 minutes for the whole thing!
Did you try a factory reset? ‘Course you will lose everything in the process, but you may get your tablet back… (1) Power off your Tablet. (2) Press and hold Volume up and Power button at the same time until you boot into the Android system recovery. ... (3) Choose Wipe data/Factory Reset with your volume keys and then press the power button to confirm.
It seems you need to fix the “parameter error” that the BIOS is reporting. I suggest you reset the BIOS by clearing the CMOS. This YouTube video will get you started. https://www.youtube.com/watch?v=-9RnIj-EcdQ At startup, you should see the BIOS self test results or Dell logo with HDMI. If you don’t see anything at boot before Windows loads, it’s not a Windows problem and a flaw might have developed with the HDMI circuitry on the motherboard. You might look into an add-on card with an HDMI port. Other answers have adequately addressed the problem as a Windows issue.