Question How to fix Laptop Black Screen of Death right after CMOS battery replacement

Jul 22, 2020
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I was working on repairing my Grandparent's 7 year old Toshiba Satellite laptop so that we could give it to my young cousin. I got the repairs finished when it came time to replace the CMOS battery as it was getting old. I removed the battery and put it back in after some time. I then attempted to boot the machine and the screen's backlight didn't even come on.

Model: Satellite S55t-A5389

I would greatly appreciate any and all help that you could give me! Thanks in advance.
 
Jul 22, 2020
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when you say that. did you remove it then replace it or remove it and put the same battery back in? also are you sure its the backlight.
I had origionally put the same battery back in. After attempting to fix the issue for a while, I eventually bought a new CMOS battery and put it in the old one's place. The backlight is likely fine.
 

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