Have you tried doing a factory reset using the Volume Up and Down and Power keys? If it freezes you can use the reset button in the SD card area. See if this helps: Lenovo A7-40, A7-50 A3500 Factory-Reset (Wiederherstellen von Werkseinstellungen)

You can do this repair pretty easy. The part is around $100 on Amazon A10 Viking Screen The digitizer is also listed on their site, not sure if you need it though. Good luck. Youtube Video on how to take it apart. Also another post with the same question for more information for you. How do I replace a cracked screen?

I would try the new hard drive first since it is cheaper by far. The only thing that is iffy is that you tried booting without the HD in and it still panic'd on you so this of course is not good. I am trying to think of why this would happen. Another thought is to open the Mac and check to make sure everything is still seated correctly. Like the RAM modules etc, since you have it open check all cables as well. Maybe do this before opening it!! I would also try resetting PRAM. ( I always do this as a troubleshooting step as it solves alot of things) To reset your PRAM: Shut down the computer. Press the power button. Before the grey screen appears, press the Command, Option, P, and R keys at the same time. Hold the keys until your computer restarts and you hear the startup sound a second time. Release the keys.

I would also try resetting PRAM. To reset your PRAM: Shut down the computer. Press the power button. Before the grey screen appears, press the Command, Option, P, and R keys at the same time. Hold the keys until your computer restarts and you hear the startup sound a second time. Release the keys. ALSO, make sure you have updated the computer since its a fresh install. This quite common on Mac. Lastly, you may find this posting a good resource. Sound Advice: Fixing Common Mac Audio Problems in OS X

Chris is Right on! https://forums.lenovo.com/t5/Lenovo-IdeaPad-100-305-500-Edge/Flex-3-1130-Memory/td-p/2232143 you can also check the maintence and user guides stated in them. https://download.lenovo.com/consumer/mob...

I would open your laptop and then use a blow dryer with low heat setting, and blow warm air on the components be sure not to overheat them. Then I would wait 48 hours and power it on and see if it works. I would also agree that if it was just the keyboard not working sure replace it, since more than one thing is not I would look into it a little more before doing the replacement. I honestly think it will be fine after you let it dry a few days. My friends spilled kool-aid on their Mac and I cleaned it up and let it dry it works fine.

I would use the Manual to help you. http://kitchen.manualsonline.com/manuals... You can zoom in and look at the controls or you can print this page 3. However, there is a note that says they might be slightly different. Or google an image of the oven.

Try removing all HDMI cables and then "remove" the power cord for about 10 minutes (powering off is not sufficient ). Then Plug in the power cord, then one HDMI cable and try your device that way. Also, something to note there is a known flaw with these tv's that cause a spike on the motherboard that cause the HDMI ports to stop working altogether. http://www.lg.com/us/tvs/lg-55UF6450-4k-uhd-led-tv Look under ratings and reviews. Hopefully the reset will get you backup and running though. The board replacement is not hard either though.

I would hold down the power button for 20-30 seconds first. If that does not work try using the reset method. Push and hold the Volume Up and Power Key at the same time, when the phone vibrate's release the Power Button and Volume Up. Are you getting a blinking white light at all on the phone?

If you believe it to be an issue with your screen I would connect it to an external monitor temporarily to see if you can get a picture to come up. Also, try removing the battery and having it connected to wall power and try powering on the device. Place it on a counter so nothing touches the prongs for the battery. Please note you may need to use the FN key with one of the function keys sometimes blue on the keyboard to get the monitor to work. Check your users manual for specifics.