Thanks for quick replay.
So the stable hardware version is H1, right ?
Emergency room page is works with all versions of 615, right ?
Is the router automatically audate it firmware ?
For example if I upgrade with wrong hardware version of D-LINK I can use Emergency page to repair it ?
If in Emergency page I put wrong firmware, is this totally destroy my router.
What is functuons of H1 ? for exmple AP mode, email notificarions ?
Thant is for now. Sorry for many questions