arris cm820 docsis 3,0 how to hack

[andytg]

read this https://ru.scribd.com/doc/62539505/SB621...emod-Guide#

see part 2 "Flash firmware via serial cable (U-Boot)"

also you will need such tool

then download the firmware forceware 1.4b1 mod1

then read this http://www.haxorware.com/forums/showthread.php?tid=3025

also will be necessary to disable 4 downstream channels in the settings of forceware, because otherwise this version will work unstably (see tutorial)

Serial cable connector

---

upd: at the time when the modem is loading, it is necessary to short the eighth chip contact on the modem case as soon as the message appears
"Hit any key to stop autoboot: 0"
after this the loading will be interrupted
type
> printenv
then type
> setenv forceboot 0
> setenv bootdelay 5
> saveenv

then after rebooting the modem when the line appears
"Hit any key to stop autoboot: 5"
press SPACE bar

then see the part 2 "Flash firmware via serial cable (U-Boot)" in the manual https://ru.scribd.com/doc/62539505/SB621...emod-Guide#