Dan A+

If the screen only changes color slightly when you turn on the computer, the problem could be with your LCD display inverter. A laptop’s display inverter is a small circuit board, usually about the size of a pen, that illuminates the screen. If the inverter is damaged or not hooked up correctly, then the screen will not light up properly. I would check the inverter’s connections at both ends, and then replace it if damaged.

The problem may be with the adapter you are using or the USB-C port on your computer. Is there a way you can purchase an HDMI to USB-A adapter or a full HDMI cable? That way, you would be using a different cable and a different port in one fell swoop.

If you recently changed ISPs and only your phone is affected, try first deleting your WiFi connection in your phone and then resetting your router. Your phone's WiFi settings should have an option to "forget” the connection and start over. If this doesn't work, try entering your router's firmware from a device besides your phone. Open a browser and type the router's IP address (usually 192.168.1.254 or 192.168.1.1, but the info should be in the router's documentation) in the address bar. Poke around the interface until you find an option to reset the router back to factory defaults.

If your system is able to power on and is not giving you any error messages, the issue may be with your hard drive. Try entering your PC's BIOS. Make sure that your hard drive is recognized by the system. Also, check your system's boot order and make sure that your hard drive is set to boot first.

If you tried updating the drivers manually using Device Manager, try letting Windows find some drivers for you. In the Settings app, go to Update & Security > View optional updates. Then, expand the list of optional drivers that Windows has chosen, and try installing them.

Developer Mode is mostly for programmers who want to “hack” their computer to test apps, access some Linux Bash shell features, etc. If you enable Developer Mode and use your PC as you normally would, there should not be an issue.

I would go straight to the website of the motherboard’ manufacturer. Try a search for your board's model#. The site will most likely list the processors that the board is designed to support.

If you have already ensured that the laptop is receiving power (the power cord is secure in both the electrical outlet and the laptop's DC jack), then try removing the battery to let it cool for 30 minutes before reinserting it. Lenovo also has some suggestions in this video: https://m.youtube.com/watch?v=87c6M9ZRtu...

Have you logged into your online account for your phone's service provider? Try checking the status of your plan to make sure that your call/text services are still active. You may consider calling their customer service line from a working phone to ask them if there are any problems in your account.

Boot looping is usually caused by an overheating CPU. When the CPU overheats and the system restarts, the problem is called a thermal trip error. Since you are able to boot into BIOS, check the temperature of the CPU immediately after the system shuts down. In general, the temperature should not exceed 80 degrees Celsius. Also, check to see if your fans run when you turn the system on. Make sure your CPU’s thermal paste doesn’t need replacing and that the cooler is firmly attached.