How to fix RG351P internal WiFi antenna audio issues

Last updated: 12OCT2020 (see Changelog for details)

If you ordered a RG351P during the first week it was available (in mid-September 2020), it’s possible your copy shipped with an internal WiFi antenna. Once the devices were in production, Anbernic learned that there was some audio crackling in the speakers when WiFi was enabled. To fix the issue, Anbernic started to ship units without an antenna, which is a shame because the built-in WiFi option is one of my favorite features of the device.

image courtesy of Anbernic Official Flagship Store

As consolation, Anbernic now ships their RG351P units at a reduced price, and with an OTG adapter and USB WiFi adapter. So you can still connect your device to the internet, albeit with a dongle.

But if your unit has an internal WiFi antenna, this video is for you. We’re going to fix the issue with a bit of aluminum foil and electrical tape. In order to open the back of your device, you will need a H1.5 hex screwdriver (or torx T5). You can find one in this kit which I recommend for a variety of projects.

Savvy YouTube viewers have pointed out that a) I should have unplugged the battery cable before adding aluminum foil to my device, and b) you can unplug the speaker wire to make the wrap job as bit easier. Enjoy the video, and the hindsight I wish I had while filming 🙂

Note that in the video I referred to the WiFi antenna cable as a “power cable” by mistake!

If your unit does NOT have the internal WiFi antenna, the chip used in my device is a MediaTek MT7601UN, which can be found on AliExpress for less than $10. It’s entirely possible to solder this chip to your board and connect a U.FL antenna to have a fully functional internal WiFi capability on your device. At this time I haven’t seen anyone attempt this, but once I learn more I’ll be sure to update this guide.


– added suggestion to remove battery and speaker cables
– added WiFi chip information

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