Ac Adapter Unknown Device Installed Dell

My battery no longer charges and has discharged to below the 10 level so i cannot update the bios.

Ac adapter unknown device installed dell. Plugged in not charging. That batter and power cord is the ones it came with. And i went into the bios and it said that the ac adapter unknown device installed. Ac adapter unknown device installed it s not recognizing the adapter as original equipment if you replaced the adapter with an aftermarket non dell one it might not charge as some do not.

There s a quite popular problem with dell notebooks. Okay i got my dell in january 2009. But in my case the system normaly works i have this fault about 1 or 2 times a week and when i reconnect the adapter a couple of times to the notebook while having the battery page of the bios opened it runs fine again. When the adapter is plugged in i get the message ac adapter unknown device installed if i unplug ac adapter none.

This results in cpu underclocking a lot and battery not charging at all although notebook is usable. If this is the original adapter it might be failing try shutting the laptop down and removing the battery for 5 10 mins then reinstall it and reapply. Ac adapter unknown plugged in not charging so i ve had a dead battery on my inspiron n5010 that would not hold a charge. Dell adapter not detected.

I also noticed that when i plug in the dell 65w ac adapter that came with my computer without the battery as a temporary power source and the light on the ac adapter shut off. Short introduction on how a dell power adapter communicates with the laptop the video might give you a clue how to fix the problem that causes the infamous message ac adapter unknown. The ac adapter is not recognized as dell s and it is said to be unknown in bios and after starting the machine. Its a xps m1330.

In this video how to fix ac adapter for laptop you will learn about common symptoms of a problematic ac adapter and ways to resolve ac adapter issues. I have 2 laptops xps 12 and inspiron 13 7000 with the same problem unknown adapter plugged in but not charging. I have installed the newer bios to the a15 to try and solve the problem like it said to do on the support troubleshooting page for the battery not charging. I never had this problem before it just all of a sudden stopped working.

Dell laptop pcs may use either a 65w 90w. Dell inspiron 1525 new battery not charging in bios showing adapter unknown device installed please advice solution abhishekpurohit84 the ac adapter is not recognized in bios system setup.