cancel
Showing results for 
Search instead for 
Did you mean: 
New member
1 0 0 0
Message 1 of 1
38
Flag Post

HP ProBook 4540s Won't Switch On

HP Recommended
ProBook 4540s
Microsoft Windows 10 (64-bit)

My HP ProBook 4540s laptop recently stopped working. I had used the program Driver Easy to update all the drivers. After the update, it restarted my laptop and I continued to work on it, until I saw the emergency power show up. 

 

I then connected it to a power cord, and it did not charge or show the charging icon. It just blinks 9 short times, then does nothing.

 

Now the power is drained and everytime I connect it to my power cord, it still blinks 9 times and does nothing. I have tried all methods of fixing this problem, including the "Windows keys + B or V, then power for 2 seconds" method and still nothing.

 

Please help!!!

Warning Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation