In this Dell laptop tutorial we are going to show you how to install and replace the CMOS Battery on your Dell Latitude 7390 laptop. These installation instructions have be made into 9 easy to follow printable steps. We have also create a video tutorial that shows you how to install your Dell Latitude 7390 CMOS Battery.
Before you begin
Please take the time read the following safety guidelines when working on static sensitive electrical components.
Dell repair manual service precautions
Tools needed for this laptop repair
- 1 x small phillips head screwdriver
- 1 x small plastic scribe
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Video tutorial repair manual
Installation and Removal Instructions
Dell Latitude 7390 CMOS Battery

Step 6
- Unscrew and remove bracket (2 X 2mm x 1.7mm).
- Disconnect display cables.
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Step 7
- Unscrew and remove bracket.
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Step 8
- Unscrew and disconnect motherboard.
- Turn over motherboard and disconnect CMOS Battery.
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Step 9
- The remaining piece is the CMOS Battery.
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