[PopDog]

Unlock with VCDS or other Coding Tool like ODIS, or go into SD Drive with Firmware in the Folder :

MUXXXX\tools where XXXX = 9411 or 9498 (depends on car)

open up file sqlite.xml

search for

Code:

<int_row status="invalid">
        <!-- Engineering Menu Activation-->
            <key>4100</key>
            <value>0</value>
            <namespace>4</namespace>
        </int_row>

and change the <value>0</value> line to <value>1</value> and save the file.
Then hidden menu is activated after update

then it will look like this

Code:

<int_row status="invalid">
        <!-- Engineering Menu Activation-->
            <key>4100</key>
            <value>1</value>
            <namespace>4</namespace>
        </int_row>