If you are experiencing trouble with your keyboard as a whole or individual keys then you need to check the connection port and make sure that the logic board is tightly connected. If the connection is loose it can be tightened manually. If there is a tight connection and the keyboard is still not responding then you may need to replace the entire thing. For more information please refer to Dell Latitude E4200 Troubleshooting
If your laptop computer will not turn on, there could be one of four problems: battery may be dead, battery may be broken, charger may be broken, or turn on key may be broken. If your battery is dead you will need to plug your laptop into the charger. If the battery is broken you may need to switch out the battery with a new one. If the charger is broken then there may be an issue with the wiring in the charger and it may need replacing. Lastly, if the turn on key is broken then you may need to check the connection between the turn on key and the circuit board. For more information please refer to Dell Latitude E4200 Troubleshooting
If your laptop computer will not turn on, there could be one of four problems: battery may be dead, battery may be broken, charger may be broken, or turn on key may be broken. If your battery is dead you will need to plug your laptop into the charger. If the battery is broken you may need to switch out the battery with a new one. If the charger is broken then there may be an issue with the wiring in the charger and it may need replacing. Lastly, if the turn on key is broken then you may need to check the connection between the turn on key and the circuit board. For more information please refer to Dell Latitude E4200 Troubleshooting
If you are experiencing your computer crashing or automatically restarting, you may have bad RAM that may need replacing. Another cause for your computer crashing may be that the hard drive is having issues. To solve this, you can run a ePSA Diagnostic or 32bit Diagnostics to identify the problem. For more information and directions to solve these issues please refer to Dell Latitude E4200 Troubleshooting