Answer to "My phone won't turn on and vibrates while charging!"Remove the battery, hold power button for 30 seconds and plug it back in. Here is a link to a guide on how to remove the LCD screen, also covers how you can remove the battery. BLU Vivo XL2 LCD Screen Replacement
Answer to "Why my vpn`s are not working"What is Marshmellow custom ROM? Custom ROMS tend to have these problems. I recently flashed my old OnePlus 2 to LineageOS and installed OpenGAPPS. The Play services are constantly stopping. It has worked in the past. Try to flash it again and install opengapps.
Answer to "Computer Wont Boot Up"Might be your HDD dying. (1) Try resetting the BIOS to default settings and see if that works. (2) Get a Windows 10 installation usb stick and run startup repair (3) Install Windows on a fresh HDD and see if it boots from it
Answer to "My laptop won't switch on, why?"Try the following. (1) Remove the battery and press the power button for 30 seconds (2) With the battery removed, plug in the charging cable and check if you can boot If that doesn’t work, your battery is dead.