Solved! My toshiba satellite c855 screen does not turn n and the communication light does not turn on after dissasembly.

[roberto4510]

I was changing the laptop fan since the last one did not work any more, I decided to change it and I did it! But neither my screen or wifi light turn on and my keyboard doesn't work either. Any help?

 

[webworkings]

Sounds like you may need to go back inside the laptop and make sure anything else wasn't damaged, knocked loose, disconnected, etc.

Should you not find anything, then I would suggest taking the laptop to a tech and having them test the motherboard.

 

[roberto4510]

Sounds like you may need to go back inside the laptop and make sure anything else wasn't damaged, knocked loose, disconnected, etc.

Should you not find anything, then I would suggest taking the laptop to a tech and having them test the motherboard.

Thank you for responding! Does the cmos battery has to do with any of that? It came off while I was doing it, I put it back in tho. What do you think may be damage or loose?

 

[webworkings]

If the CMOS battery is not inserted correctly, of if the location where it is inserted is damaged, that would give you issues.

In regard to other issues/damages/looseness, it really depends. It could be a few things. You would just have to check.