BIOS VERSION:

1.4.0, 14/08/2020

UPDATE

So the following day, machine is now able to recognize AC input.
Laptop reached 2% before was shutdown, and was left disconnected from the AC power cable.

Then connected the cable after sometime (30-40mins) - and the laptop's LED light in the front glows when connected to AC power.

After 1 hour or so - powered Laptop On - Windows recognizes the AC power and that it is charging.
Laptop is now fully charged and the AC power is being recognised.

Can remove and reconnect cable to USB Type C port and each time Windows recognizes the input.

Did the On Boot Diagnostic (Basic) Tests and everything passes with 2000-0000

No RC worked out, but PC seems to be working.

Issue has resurfaced !

PC connected to the charger but not being recognised 

Hi,

 

I have replied to you via a private message.

I’ve replied back with images. The PC was not charging and the message from Windows was “PC isn’t charging. Use the recommended charger and cable, and make sure it is directly plugged in” @8.53pm local time.

I then shut down the PC and waited for 5-7minutes. 

Then connected the cable *to the same port*. Charger is *connected to the same wall socket* - the LED light in the front is now on and Laptop appears to be charging.

I have run the basic diagnostic on Boot twice and it has come back with a 2000-0000 

I ran the advanced diagnostic with everything ticked - took about 47 mins - came back clean with 2000-0000

 

Scanned and submitted the result to DELL each time

 

Service Tag and the Service Request Number has been sent to you via Private Message as requested.

Has DELL confirmed compatibility for the latest Windows 10 Pro version - 20H2 - 19042.685 released 20/10/2020 (2 months ago) for the 2020 Dell XPS 15 9500 4K display model ?

 

Identifying that this is not an unique issue to me now.
Issue also being identified by others : see comments at : 

XPS 15 9500 Battery won’t charge : Dell (reddit.com)

Highlighting sections that I see as common with my machine and the issue expressed here.

 

Hi everyone, it looks like everyone is having their fair share of XPS problems, including me.

My computer will restart without warning and then the battery won’t charge. I can fix this by shutting it off and then turning it back on, but even then it crashes 2-3 times before I can actually access the desktop. Then, usually, the battery charges again.

I keep contacting Dell customer service but they always just throw the same buzzwords at me: “run system diagnostics, update bios, check ac adapter, update drivers, check battery etc.”

Can anyone offer a permanent solution to this? It’s really frustrating because sometimes I wake up to my laptop having 2-3% battery when I’ve got a full day of work ahead of me

Another user having the same issue posts comments at :

XPS 9500 not charging with the original charger that came with it : Dell (reddit.com)

A third user also having the issue when seeking to charge via a External Monitor (LG) 

XPS 15 9500 sometimes not charging from LG Monitor via USB-C : Dell (reddit.com)

 

//
The answer in each of the three cases is to let it drain. Wait for a bit, plug in again and it works. All of them have this occur intermittently.

//

 

At this point I have tried reaching out to DELL support via

1. Online Chat
2. Helpline call
3. Twitter
4. DELL Community
5. DELL Community private messages

 

Solutions / troubleshooting steps are to run troubleshooters and diagnostics - but I have run this about 6 times now and they always return with 2000-000

There is no solution in sight.

Pretty certain that this is an incompatibility after the recent 20H2 Windows 10 Pro update - DELL has this been escalated to DELL engineers and have the engineers attempted to replicate the issue independently at their end?

 

Linking to related issue:

https://www.dell.com/community/XPS/Charging-issues-with-XPS-15-9500/td-p/7755158