D-Link DIR-853 R3 Can I install DIR-853 A3?

Installing and Using OpenWrt
1

Hello, dear friend, sorry to bother you, I need your wise advice. I have a router D-Link DIR-853 r3, MT7621DAT, can i install firmware from DIR-853 a3?
I looked OEM Device DIR-853 r3 and compared them with DIR-853 a3. they are completely identical. Except for one thing, the paper manual that comes with the box DIR-853 r3, says USB 2.0 and the version DIR-853 a3. indicated is USB-3.0.
But on the D-Link website in OEM Device DIR-853 r3 the USB version is not indicated.
Below I attach all the information that I found.

DIR-853 R3
[file:///X:/d-link/document.pdf](file:///X:/d-link/document.pdf)

Π‘Π½ΠΈΠΌΠΎΠΊ экрана (19)
Π‘Π½ΠΈΠΌΠΎΠΊ экрана (19)1366Γ—768 84.4 KB

2

If you can afford, in a worst case scenario, bricked device, go for it.

Please remove all screen dumps but the 1st one, the rest is useless.

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3

Thanks for your reply.
If you have any other opinions I'd be glad to hear them.

4

Ok, my bad the 1st one from the manual, with the hw specs, not the webUi :frowning:

We have no other option for you, it's your device, do as you please.

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5

I'll try to do this. I'll write the result later.

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6

The d-link device that have -Ax have a different bootloader and memory layout
then the -Rx devicses
the only other nand -Rx device is the DIR-2150-R1 so far
so on the DIR-853-A3 won't work if force installed, it may break things

their bootloaders are different, one is label "recover interface" and the other is "failsafe" I think

it would be very easy to make the firmware for this model
it has to be created by someone
maybe you !

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7

Hi Lucky1 . That's a good idea, I could do it, but I have no experience.

8

Depends on how much you don't know and what you are willing to learn
there is lots of documentation on how to build OpenWrt
can just start there would need a current supported device to start tho

9

share links? do you mean another router? which supports openwrt?

10

https://openwrt.org/
https://openwrt.org/docs/guide-developer/start
https://openwrt.org/docs/guide-developer/toolchain/install-buildsystem

yes just good to lean to build a basic image for a supported device
to know how it works before starting on a new board

and you would need a rs232 serial interface for the new board as well

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11

Today I was able to connect using UART-USB on the ch341a chip. Can I flash the router with it?

12

It can help you, but you need something to flash it with

try to capture the boot process in a text you will keep looking over it later
you want to find the memory layout and the interface MAC address
LAN,WAN,2.4G and 5G so 4 MAC address

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