Firmware DIR-620 via console?

Question

Command line

Hello, dear experts, actually the question is:
I soldered the console to the corresponding conclusions on the DIR-620 board. according to habrahabr.ru/blogs/DIY/123699
The console output is as follows:

U-Boot 1.1.3 (Feb 9 2010 - 10:44:20)<br/>
<br/>
Board: Ralink APSoC DRAM: 32 MB<br/>
relocate_code Pointer at: 81fb0000<br/>
flash_protect ON: from 0xBF000000 to 0xBF01D3F3<br/>
flash_protect ON: from 0xBF030000 to 0xBF030FFF<br/>
============================================<br/>
Ralink UBoot Version: 3.3<br/>
--------------------------------------------<br/>
ASIC 3052_MP2 (Port5&lt;-&gt;None)<br/>
DRAM component: 128 Mbits SDR<br/>
DRAM bus: 32 bit<br/>
Total memory: 32 MBytes<br/>
Flash component: NOR Flash<br/>
Date:Feb 9 2010 Time:10:44:20<br/>
============================================<br/>
icache: sets:256, ways:4, linesz:32 ,total:32768<br/>
dcache: sets:128, ways:4, linesz:32 ,total:16384<br/>
<br/>
##### The CPU freq = 384 MHZ ####<br/>
<br/>
SDRAM bus set to 32 bit<br/>
SDRAM size =32 Mbytes<br/>
<br/>
Please choose the operation:<br/>
1: Load system code to SDRAM via TFTP.<br/>
2: Load system code then write to Flash via TFTP.<br/>
3: Boot system code via Flash (default).<br/>
4: Entr boot command line interface.<br/>
9: Load Boot Loader code then write to Flash via TFTP.

Then he writes Bad magic number and all
Awakening press 2 to change via TFTP, but he does not respond to pressing at all.
What can you advise?
It was recommended to connect via cable: MA-8720P but I connected via another one (I don’t remember the brand now) could this be a problem. Maybe someone came across?

Answer 1

Solved here: habrahabr.ru/blogs/bsdelniki/129451/