How to upgrade/downgrade your firmware on DGA413x even if the modem is not rooted.this is the
Teddyraspin76 method, all credits to him
In this tutorial my DGA413x IP is 192.168.1.253
First, you need Chrome or Firefox to find the
sessionID and the
CSRFtoken. And
Postman https://www.getpostman.com/ to send the firmware to the modem.
1) With Firefox or Chrome, enable the debug mode by hitting
F122) Go to your modem ip address and login
3) in the file list select
mobiletab.lua, and now on the right, in the
cookie tab you can see your
sessionID4) in the next tab called "parametters" you'll see your
CSRFtoken5) copy both values. Don't close Firefox/Chrome else we will close the session.
6) Start
Postman, insert your router address :
http://192.168.1.x and click
SEND7) Now click on
cookies (below the
SEND button). it will open a window, click on sessionID to display the cookie content.
8) Replace the value of the
sessionID with the one you copied at
step#5, click
SAVE and close the window.
9) Now in Postman replace the
GET by
POST10) Click on
body11) Add the
CSRFtoken key and the value you copied at
step #512)Below CSRFtoken add a new key called "
upgradefile", and on the dropdown menu on the right, select
file.
13) now click the button and select your firmware file.
14) replace the link with
http://192.168.1.x/modals/gateway-modal.lp?action=upgradefw and click the
SEND button.
use your modem ip address !
15) Wait the file will be sent, it will be flashed and the modem will reboot.