This for me have become a daily exercise, I derive so much satisfaction and joy in attempting to solve this problems, its becoming as simple as calling your friends name.
like i said its simple and you can as well handle some basic hardware challenges except for some critical and technical issues, you don't need to have all the tools to be able to solve this problem, for me i work any were and at any time with the help of my workstation (toolkit). on the pictures you are going to see several tools necessary for the work to be done and you can get them at shopping center near you.
you can see several tools in there that will effectively enhances your efficiency.
this will effectively help in unscrewing of different designs of screws from the computers, please you must first know what the problem is and were you have to go to so as to attempt the solving process.
This are different screws removed from the laptop to enhances testing checks that will be done
Here you can see several parts of the system separated for easy diagnosis
This is the keyboard being removed from the laptop frame
This is the top frame were the keyboard seats on, underneath there are the mouse and power flex linking to the system board
That is the system board, seated on the lower frame of the laptop, here you have to bee more careful in plugging out different flex and connectors that are linked to the board
As you can see in my hand is the screen flex which happens to be the very reason why we are doing this, directly under the flex in my hand is the flex slot on the system board
We will carefully remove the parts that are faulty and as well replace with the new or a good one, then carefully redo the processes that you had taken, be sure the new parts is working effectively before you draw your conclusions, put back the parts you had removed and then screw it, allow the system to run for a while to be sure the replacement was effectively done.