Question USB RJ45 Adapter

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AbOoM

Senior Member
Jul 2, 2012
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Hello everyone,

Im trying to connect my phone (redmi note 10 pro MFF edition (europe)) with a rj45 cable to avoid wifi signal in my house. In my old samsung its connected directly, but with the xiaomi nothing happen, I dont find the option for ethernet neither.

Did any one try this ? Its just a software problem ( MIUI system) or more hardware. Since im still waiting to unlock my bootloader, Cannot try with a custom room to see if the problem persevere.

Thank you all for the feedback
 

ponyo71

Member
May 18, 2021
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I do not have the Redmi Note 10 Pro, but some general questions:
1. Did you disable Wifi and enable Airplane mode?
2. Which adapter did you use?
 

ponyo71

Member
May 18, 2021
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The issue is that in miui we dont have any ethernet interface to configurate the dhcp or other stuff.
I thought the issue was that you had no connection. I have no idea about the MiUI. So if the issue is that you get no connection these might be some obstacles:

I found a discussion (for the Redmi Note 8/Pro/8T) on the mi forum (https://c.mi.com/thread-3003395-3-1.html) where a person describes that he thinks the issue might be the chipset. Your ethernet adapter uses the 8152B chipset, but he says that it seems like you would need an adapter with a AX88179 chipset. An ethernet adapter that supports the AX88179 chipset is the https://plugable.com/products/usbc-e1000/.

Another user in the same discussion says that it works for him with the j5create adapter (https://c.mi.com/oc/thread-3003395-1-0.html), although he states that nothing indicates that he is connected. (For some reason I didn't find any information on their website about what chipset their adapter uses, so we don't know for sure if the chipset is the issue.)

But let me re-emphasize that I do not know whether that really is the issue or whether it works with one of these adapter. So be aware of that.

If the ethernet is still not working the issue might be that the kernel wasn't configured for Ethernet over USB. You can find a lot more information about these things here: https://android.stackexchange.com/questions/225643/how-to-make-ethernet-work-on-android-over-otg

If you actually decide to buy a new ethernet adapter, please let me/us know whether it worked.
 

AbOoM

Senior Member
Jul 2, 2012
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Thank you Ponyo71 for this intersting feedback,

I think its myabe a doubel raison : first hardware and secone software.

I get the same issue with my mibox 3, she dont regonis all the usb rj45 adapter, only the ugreen worked and another 2$ adapter that I get from discountshop.

the software raison is the only part that we can modify easly, I know that xiaomi reduce alot of option from android to optimise the battery or to not show that the chipset used is very powerfull for some specific utilisation. nad since the chipset used for wifi and BT probably is the same that manage the ethernet.

The xiaomi coast cheap, Its's normal that they bypass some non essentiel used option. More, i think if it's a option htaht only less than 5% of people use, they will supress it from miui to save and manage the battery.

Anyway, Now im back to samsung, no more xiaomi for me
 

ponyo71

Member
May 18, 2021
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Seems like it really is the chipset, since the ugreen adapter uses the AX88179 chipset. And apparently it works with your MiBox 3. So I guess it really is your ethernet adapter and not the software, although I can’t say for sure.
 

AbOoM

Senior Member
Jul 2, 2012
128
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In this case, we will get at least the ethernet configuration but disabled. in MIUI we dont have any ethernet parameter. The software has a part of the problem