[Samsung Galaxy A53 5G] personx:
Hi there,

I bought this adapter for my Samsung A53 which plugs into the USB-C port and which allows me to plug in:

regular earphones with an audio jack (the adapter has a built-in DAC)

At the same type plug in a charger via the spare USB-C port

I had read in the reviews that someone with an A53 is able to charge his phone wile using the audio jack using this adapter.

This video shows what happens when I connect the adapter with the audio jack and charger plugged in:

The dropdown menu shows a notification "USB connector connected"

Another notifcation appears "charging connected device via USB" this is no good as it should be the other way around (the USB device should charge the smartphone). So it seems that at this stage the smartphone is providing power to for example the DAC chip in the adapter.

Almost at the same time a pop up appears showing that the smartphone is charging.

This is also the case for the battery icon on the top right of the screen.

Then all notifications disappear and a different notifcation appears saying "cable charging". This is good news.

Then two new notifications appear: "USB connector disconnected" and "USB Charging".

Then the battery icon on the top right of the screen changes from charging to not charging.

Then the notification "cable charging" disappears

Then the notification "USB connector disconnected" disappears

Then the notification "USB connector connected" appears and disappears again soon after.

The only remaining notifcation is "USB Charging" which is incorrect as the device is discharging.

The audio jack works fine but it won't charge.

On other Samsung Devices (A70, A40, Galaxy Tab 5e) it works fine.

Here's for example what happens when I plug it in on the Tab 5e:

The dropdown menu shows a notification "USB connector connected"

A pop up appears showing that the smartphone is charging.

This is also the case for the battery icon on the top right of the screen.

A notifications appear: "USB Charging".

A notification appears "Cable charging (2h 30 m until full)"

I got it to work twice (so charing + audio at the same time) on the A53 but don't know how and can't reproduce it anymore. A reboot was involved in the process.

I can get the charging to work (but without audio at the same time) by turning on the phone while the adapter is plugged in (also when the phone is turned on it charges fine).

Samsung support has been less than helpful by proposing alternatives like this one, which serves a completely different function. And they are also telling me that it is not possible with the A53 to use the USB-C port to listen to music while charging at the same time. This would be a ridiculous loss of functionality.

I'm looking for:

Either a way to get the adapter which I bought to work

Or for an alternative adapter which offers an audio jack with simultaneous charging that is guaranteed to work with the Samsung A53 (I have no clue why it is not working on mine as it works sometimes on mine and works fine for another A53 owner, and also on my other Samsung devices). There are many alternatives on the market (but while these list various Samsung devices the A53 is not explicitly listed) like

Belkin

Moshi

Mcdodo

Does anybody have a clue? Any insights would be much appreciated.