DELL XPS L502x USB 3 ports not working

Hi,
i have a dell xps l502x, recently i opened the laptop to clean the exhaust i followed a guide to properly disassemble it. after i finished and started my laptop both of my usb 3 ports are not working only the usb 2/sata one is working.
i reinstalled the usb drivers and still nothing.
i m pretty sure i haven't damaged the port but it seems unresponsive.
can some one help me.
PLEASE

Thanks

 

take a look in the control panel > device menu and see if the USB 3 ports show any errors.

or if they are even listed in the menu.

 

dave-p

In my device manager
2 (generic usb hub) , (intel 6series/c200 series chipset family usb enhanced host controller) -1c26 and 1c2d , usb composite device , 2 (usb root hub)

but no usb 3.

 

from what I see the USB 3 ports are on a daughter board on the left side, it is possible the ribbon cable may have come loose

may want to open things up and check it.

 

here is the service guide info

ftp://ftp.dell.com/Manuals/all-prod...xps_laptop/xps-l502x_service manual_en-us.pdf

 

thanks will try that

 

i reopened my laptop and rechecked the the ribbon cable still not working ..

 

forgot to ask, is there any unknown devices listed in the device menu at all ?

You can try re-installing the chipset drivers, and then try the USB 3 driver again.

it maybe worth checking the BIOS menu and see if by chance the USB 3 port has an enable / config option.

if not, then it is possible your USB board is dead, Hopefully the problem is the USB board or the ribbon cable. question is was this damaged when you cleaned things, or just co-incidence that the ports failed.

 

I tried reinstalling the drivers from safe mode but i m getting an error 1719 windows installer service cannot be accessed.
could this be the problem ?

 

it could be yes,

Try installing in regular mode not in safe mode - not all services run in safe mode.

if you still get that error it may indicate a problem with some of the windows system files.

Time for a back up of any data / files / programs you have

Data loss can be either from a pending hard drive failure or a virus

there are several things to consider at this point.

1. Run Dell Diagnostics and see if any problems are detected < Specifically hard drive
2. Try Windows recovery
3. Run a more comprehensive virus scan
4. Fresh install of the OS and drivers < my personal choice

How old is the hard drive in this laptop?

 

laptop and hard drive is about 2 and a half years old .

 

2.5 years is a decent run for a laptop drive

You may want to consider upgrading the hard drive anyways

 

Hi
I have the same problems with my dell xps l502x.
I clean it but the 2 usb port are died. Did you fix this?

 

Hello my friend , did u fix ur laptop ? bcs i know whats the problem , u must diasebmply ur laptop untill u get to the Bios Batery , when you get there , take of the batery and wait 30 sec and then put it back , then turn on ur laptop and your usb3 port shourd work , i had the same problem and i found the solution and it working

trust me

 

hello mate i know how to fix that problem , check out the latest comment that i wrote
(Check my reply to that guy who wrote the post )

 

check out the solution that i wrote guys

 

Hey, please tell me it really works, my two USB 3.0 ports are not working and HDD and Battery notification light is also not working. Please tell will doing that fill fix this ? Thank you

 

Please, tell me will it work my notfications lights are also not working