How to fix Thinkpad T440, T440s cannot enter BIOS

Description: How to fix Thinkpad T440, T440s cannot enter BIOS. You No need to take laptop apart .Simply blow air from you're mouth into the left side where the fan exhaust is. Could hear the fan moving and dust came out of laptop. Just blow very hard into it, worked for me.

How to fix Thinkpad T440, T440s cannot enter BIOS. You No need to take laptop apart .Simply blow air from you're mouth into the left side where the fan exhaust is. Could hear the fan moving and dust came out of laptop. Just blow very hard into it, worked for me.





1. Hold the power button for a minute.  Tap it 10 times then hold anothe minute.

2. Remove all batteries and press the power button for 1 minute.

3. Remove all batteries and the RAM module and press the power button.

4. Press the reset button through the cover on the back of the machine. 

5. Lastly I disconnected the CMOS batter along with all other power.

The last step actually let me me boot up my machine and everything was working like normal.  I was happy I had fixed the problem, but I didn't.  Once I shut down the machine it still will not power back up.  I have to disconnect the CMOS battery again in order for me to powe up the machine.  Once the machine comes back I updated the BIOS to the latest version and that didn't help either.  I am stumped!

Any advice that anyone can give me is greatly appreciated.