У вашего броузера проблема в совместимости с HTML5
This is the way you can unlock the comand aps of w203 2005 model.
With this way you can enter to the engineering mode.
You press : SERV then SYSTEM then LANG then immediately PHONE DOWN+UPERLEFT+AUDIO.
And you ve done you are inside engineering mode.
After that i don t Know what you can do but many times i tried to find the Dr.Dist. menu with no luck.
If someone with w203 did manage to do it would appreciate to help me.....