Ping-Ke,

Happy to help, answers below:

1. Yes, the kernel shows the following (that's why I started this email thread):

[    3.541494] rtw_8821ce 0000:03:00.0: Firmware version 24.8.0, H2C version 12
[    3.558760] rtw_8821ce 0000:03:00.0: rfe 6 isn't supported
[    3.558890] rtw_8821ce 0000:03:00.0: failed to setup chip efuse info
[    3.558893] rtw_8821ce 0000:03:00.0: failed to setup chip information

2. Unfortunately, I don't have a Windows 10 setup readily available

3. The module is soldered onto the motherboard, so I can only show you
one side. Picture is attached.
It looks like it's produced by CDTech (China Dragon?):
https://fcc.report/FCC-ID/ROW-61821CE/5189720.pdf
There are two antennas, one for 2G, another for 5G shared with
Bluetooth. Maybe the type 4 driver will work for it out of the box?

Best,
Bogdan

On Wed, Nov 3, 2021 at 7:17 PM Pkshih [off-list ref] wrote:

quoted

-----Original Message-----
From: Bogdan Nicolae <redacted>
Sent: Thursday, November 4, 2021 1:26 AM
To: Pkshih <pkshih@realtek.com>
Cc: linux-wireless@vger.kernel.org
Subject: Re: No support for Realtek 8821CE RFE Type 6

Thanks Ping-Ke,

The Realtek Wifi 8821CE RFE Type 6 is used in a broad range of
embedded systems based on Intel Celeron J4125 SoCs. A popular example
is GK3 Mini PC, sold under a large number of brands, for example:
https://www.amazon.com/gp/product/B09FTCPBHK/
These systems are rising in popularity in favor of laptops, as people
tend to stay at home and are looking for affordable upgrades.
Unfortunately, lack of Wifi Linux support is a major drawback.

Could you help to confirm following things:

1. Do you see "rfe 6 isn't supported" in kernel log?
   I want to confirm the type again.
2. If you boot this system into Windows 10, does the 8821CE work properly?
   If so, please give me its VID/PID of PCI.
3. Could I have the pictures of the module of both sides?
   I would like to know the module marker; as well as antenna location.

--
Ping-Ke