plugged in, not charging

Question

hello there... i have this problem with my laptop latitude e5400 problem : when i plug in the adapter, the battery still not charging battery health : normal action taken : 1- i already open up the laptop and take out the motherboard. i clean the power board and the motherboard also with some thinner. 2- already try with another adapter and battery   please guide me what can i do to solve this. thank you very much...

Telson A · Accepted Answer

Wawa_Usagi,

BIOS status for AC = unknown means your laptop was unable to detect the AC adapter type.

This is clearly hardware issue and could point to the following

AC Adapter is not genuine Dell or damaged
MotherBoard / PowerBoard is faulty

Since you have already tried with another Adapter/Battery this most likely points to MotherBoard Failue.

Please reach out to Dell Technical Support for replacement of appropriate part, if your laptop is out of warranty then you would have to pay for the part and service.

Telson A · Answer

Hi,

If you have already changed the Battery and Adapter have you checked what the AC adapter status looks like in BIOS ?

Suggested Steps

Upgrade BIOS (If Available)
Re-install Dell Quickset from support.dell.com

If BIOS shows a good adapter, then you need to perform the second step, if not check if there is a BIOS upgrade. Else you would need to replace the power board.

wawa_usagi · Answer

thanks for the reply. ok, i already did this :-

1- bios status - ok

2- upgrade bios a 18 - done

3 - sorry, where can i find dell quickset. already browse at the driver and downloads, but didn't find it. could you please show me where?

Telson A · Answer

My apologies, Dell QuickSet doesnt apply to Latitude systems. I believe it was Control Point Found Here  What does the BIOS status for AC adapter say ?

wawa_usagi · Answer

1- bios status for ac = unknown

btw, after reassemble back n lots of restart, i got this msg saying that...

ac power adapter wattage & type cannot be determine......

but, i do use the same adapter till now

2- already install the control point. so, what should i do with it?

wawa_usagi · Answer

1- ac adapter are genuine since there is dell word on the adapter

its already out of warranty, thats why i seek help. i plan to repair it myself. so i need to figure out which part is the problem. is it possible for u to guide me, step by step?

Telson A · Answer

I am in agreement with ejn63

ejn63 · Answer

If you've already tried a new adapter to no effect, replace the power board next. www.parts-people.com/index.php If that doesn't solve the problem, replace the mainboard.

wawa_usagi · Answer

thanks a lot, both of you. i'll go with the power board first.

alescobar · Answer

Hellow Telson,

Sorry for my english. A question: When I plugg the ac adaptor in my mInspiron 1110, I can see that the icon on the toolbar starts charging for two seconds and after stops and It does not charge longer. Could be the problem in the battery?

Alescobar

DELL-Vijay J · Answer

Hi Alescobar,

Are you able to test the computer with a known good adapter? This should help you identify if the issue is with the adapter or the battery.

Do let me know how this goes.

Thanks

J Vijay Prakash

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