How to rebuild firmware for MR3020 chip?

Greetings people from the forum,

It turns out that I wanted to change the BIOS chip of my TP-LInk MR3020 by one of 8mb or 16 mb (I have both chips) but when desoldering the one of the plate broke one of the front legs (the ones stuck to the point that indicates the position of the chip).

I think that because of this my chip reader does not recognize it (CH341A), my question is:

Is there a way to burn a new chip without having a backup of the original?

------------------- SPANISH ---------------------

Saludos gente del foro,

Resulta que queria cambiar el chip de la BIOS de mi TP-LInk MR3020 por uno de 8mb o 16 mb (tengo ambos chips) pero al desoldar el de la placa rompi una de las patas delanteras (las pegadas al punto que indica la posicion del chip).

Creo que debido a esto mi lector de chips no lo reconoce (CH341A), mi pregunta es:

¿Existe alguna forma de grabar un nuevo chip sin tener un backup del original?

No.

Without the boot loader and device-specific data in the ART partition (and potentially the config partition), it's dead.

You might want to look at the GL.iNet devices such as the GL-AR300M with 128 MB of RAM and 128 MB of NAND flash (~US$40) or the GL-MT300Nv2 (~US$20) with 128 MB of RAM and 16 MB of NOR flash.

If I get a dump from another MR3020, can I not edit the MAC data and possibly the serial or what is this proposing is crazy?

----------------- SPANISH ---------------

Si consigo un volcado de otro MR3020, ¿no puedo editar los datos del MAC y posiblemente el serial o lo que esto proponiendo es una locura?

The MAC is "easy" -- what you would be missing is the wireless calibration data which is different for every device (and whatever is in the "config" partition).

1 Like

There is no remedy, I will have to try this:

https://openwrt.org/docs/guide-user/installation/restore_art_partition

Any charitable soul that sends me a dump of your ART partition for an MR3020?

Thanks again

------------------ SPANISH ------------------------
No hay remedio, tendre que probar con esto:

https://openwrt.org/docs/guide-user/installation/restore_art_partition

¿Alguna alma caritativa que me mande un volcado de su particion ART para un MR3020?

Gracias nuevamente

I don't know where you live, but if shipping from Amazon is reasonable for you, the excellent GL.iNet AR750S, dual-band travel router with 128 MB of NAND and 128 MB of RAM has a 20% off coupon right now for ~US$56 (normally US$70).