Trying to install uboot.bin on the Arcadyan ARV7519RW22-A-LT VR9 1.2

Info:
ASTORIA networks
Model Name of manufacture: ARV519rw22-a-lt VR9 1.2
HW Version: R02
FW Version: V00.96.114
Rating: 15V---1.66A

I try to do the following tutorial

I get stuck at point nine when trying point 9 ( Press the key ctrl+a, and then ctrl+s, next type in the file to transmit to router (typical uboot.bin that is located on linux machine) )

these are the volts of the wires of my UART cable:

red black -176
red white -294
red green 1430

I think this is not typical, I don't know if this has to do with the error that I show below.
This is the reason why I have not put the cables in the order indicated in this tutorial, but rather I have connected them as follows:

(black green white)

Later I download the compressed file where the u-boot.bin is located (u-boot_2013.10_dirty_arv7519rw22.zip)

I have tried all the files it comes with (u-boot-V11.bin, u-boot-V11_RAM.asc, u-boot-V12.bin, u-boot-V12_RAM.asc) although I suspect that the one I should install is u-boot-V11.bin or u-boot-V12.bin and not another.

here I leave the error when trying to install it:
well... now the error doesn't even appear anymore... now it just won't let me install

[VR9 Boot]:u


UPLOAD Flash
---------------------------------------
    Area            Address      Length
---------------------------------------
[0] Boot            0xB0000000     512K
[1] Image 0         0xB1280000    6144K
[2] Image 1         0xB1880000    6144K
[3] Configuration   0xB1E80000    1024K
[4] Boot Parameters 0xB1F80000     256K
[5] Flash Image     0xB0000000   32768K
[6] Linux Image     0xB0080000   24576K
[7] Emergency Value 0xB1FC0000   2883584K
---------------------------------------
Enter area to UPLOAD: 0
ERROR: You can't upload this area.