Latitude 7320 Detachable Tablet and WD19DCS Docks AC Adapter Intermittently Not Detected

Summary: The following article provides information about an intermittent power issue with your Latitude 7320 Detachable Tablet. The tablet intermittently does not detect the AC adapter when connecting through your Dell Performance Dock (WD19DCS.) ...

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

Latitude 7230 Detachable sporadically does not charge or detect the AC Adapter through the WD19DCS dock

 

You can experience an intermittent power issue with your Latitude 7320 Detachable Tablet. It does not detect the AC adapter, and your battery continues to drain when you connect the tablet through your WD19DCS USB Type-C wired docking station.

The docking station does not have any issues on another model of laptop or tablet device. While the tablet does not detect the AC adapter, any external devices that connect to the dock continue working. You can establish a wired Ethernet connection through an Ethernet cable plugged to the dock.

This issue is intermittent and happens on approximately two out of every five times you turn it on through the dock connection. It does not matter which of the tablets Two USB Type-C ports you use.

The following symptoms are seen:

  • The tablet does not start to charge when powering on through the dock
  • The tablet battery continues discharging after powering on through the dock
  • The tablet does not recognize that the AC Adapter connects through the dock
  • The tablet continues to be able to use the other features of the dock
Note: You can temporarily resolve the issue by re-plugging the docking cable. You do not see the same issue with any other USB Type-C docking station model. (For Example: The WD19TBS, or WD22TB4.)

Cause

There is a conditional code issue within the BIOS.

Resolution

Note: You must have administrator rights on your tablet to make any operating system changes, update any firmware, or software.

Update the BIOS to Dell Latitude 7320 Detachable System BIOS, version 1.31.0 or later. Use the instructions in the following link to download and install the Dell_Latitude_7320_Detachable_1.31.0_64.exe update file:


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Affected Products

Dell Performance Dock – WD19DCS, Latitude 7320 Detachable
Article Properties
Article Number: 000223188
Article Type: Solution
Last Modified: 13 Nov 2025
Version:  6
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