Sorry to say it, and i'm not posting here to hate on anyone in particular but there is so much rubbish information posted in this thread with the exception of bindings designed to release reliably (with a certain margin for error) at all points of the DIN range.
No issue with people adjusting their own DIN, privided they know what they are doing and don't try to shift liability onto someone else when they break their knee..It's stupid though, you should just get a shop to do it.
Not everything is about DIN either - peeps think that when you release on a din of 10 then just crank it higher and all is good..often something as simple as forward pressure needs adjustment and then a DIN of 7 would release perfectly well
You should look at this
https://www.newschoolers.com/web/forums/readthread/thread_id/353082/