You can try pressing volume up & down and power button altogether. It might restart your device.

It might be a display problem. The display might be broken. It will be fixed if you replace the display with a new one.

You can buy and use a Bluetooth adapter. The Belkin Mini BluetoothV4.0 USB Adapter is described compatible with Mac and it is quite cheap.

This is a video guide to replace that part. I've seen others where they clip the legs from the game slot reader or you can try and just replace single pins or realign any bent pins. If you can't see any obvious damage to the game reader pins try cleaning them. Hope this helps!

(1) Connect your iPhone to a computer that you have previously synced with iTunes, make sure iTunes is open. (2) Select your device. If you don't see it listed, force restart your device by pressing and holding both the Sleep/Wake and Home button for at least 10 seconds, until you see the Apple logo. (3) If you made an iTunes backup of your device before updating to iOS 9, restore your device from that backup. If not, you need to make a backup of your device in iTunes, then restore from that backup. (P.S: These steps are from Apple inc.)

Some liquid stuff might have gone under the screen display. You will have to remove the display and clean the back of it.

I don't think there is a way to fix it by using household appliances, but there are other ways you can fix it. 1.Replace the charging port with a new one. 2.By buying a charging base using it to charge the 3DS.

Let’s assume that your printer’s drivers are up-to-date, and that it has enough paper and ink or toner to print. Try turning the printer off and on. Unplug the printer and plug it back in. Check your printer’s print queue by looking for the printer icon in the system tray and double-clicking it. The print queue shows you the status of each job as well as the general status of your printer. Ensure that ‘Use Printer Offline’ isn’t checked. Sometimes, printing while your printer is turned off can cause Windows to set your printer to work offline, and that can stall jobs sent later.

-If your computer has not been rebooted recently, make sure you reboot it before following any of the steps below. -Delete temp files. To do that start Run by pressing the windows button & R and type in " %temp% " and click Ok. Then delete all the files in that folder if some files can't be deleted, just skip those. -Verify that your hard drive has at least 200-500MB free space. -Scan for virus using any antivirus program. -Make sure that you have the latest drivers for your computer hardware, especially the latest video drivers. -If you have done any of the above steps but your computer is still slow, try rebooting your computer again. -If you had your computer for more than 2 years, you may need more memory. I suggest computers to have 1GB of RAM for 32-bit system and 2GB for a 64-bit system. -Make sure your computer and processor is not overheating. If it is over heating clean your CPU case and fans as they might have some dust, dirt or hair. Hope these steps help!

Go to settings > application manager > Google play and press clear data and clear cache. I'm not sure if this will work or not, but hope it helps.