last night my freind accidently sat on my n900 very gently cuz he realized he was sitting on something
from that point and foward the n900 dosent know when the keyboard is open
it dosent unlock when i open the keyboard only with the normal unlock buttun
and in phone mode it stays on portrait and dosent change to landscape when i opent it
the thing is i am 100 precent sure its hardware
but i dont know what to fix or replace since i dont know what is responsible for this problem

thanks in advance ariel
and sorry about the bad english

Which region or country are you located in? If you're lucky enough to be in the right countries, you might be able to get Nokia or a repair outlet for them to fix it for you. Are you within the warranty period?

no i have no warrnty since i replaced my screen and panel bymyself a while ago
any way to know which part is problamatic?

If you can convince Nokia that it was caused by general usage, then they may repair it for free (provided you are still covered by the warranty). But as you know the manufacturers guarantee does not cover accidental damage.

In this case you may have to take it to a local professional.

EDIT: Sorry, did not see your last post

problem is that there is no local proffesional here
but if ill know what to replace or fix ill do it bymyself



EDIT:
i found out that if locked
when i drop the device on the table from about an inch screen turns on-i mean unlocks
and all sorts of variations thanks to sharp movments
like its trying to recognize that keyboard is opend but its broken so it dosent work properly

You can't ask us to tell you what part is broken. It needs to be opened and examined by someone familiar with how things should look. The only thing an online forum can do for you is keep guessing without helping you. Please take your device to get serviced or else contact Nokia and pray that they will assist you instead of trying to sell you a new one at higher-than-retail cost like they did to me.

I'd load up Health Check and see what it's reporting. The drop test may be a detect on the power button or the slide-lock button. I'd bet that the alignment in the rail sensors is off just a hair now and it's not picking up the magnet. (The rail detects are magnetic, which is why a magnet positioned just right can cause the device to unlock.)

It could also be something as simple as a connector being jarred slightly out of place. If you're comfortable opening it up (apparently you are), I'd say open it and poke around. If it's just a loose connector, the act of opening it and putting it back together could fix it.

so if its the magnetic rail
buying a new one should solve the problem?

EDIT:
at least can someone send me a picture of the magnet
and the magnet sensor?

Like I said... you might want to get someone to o/~ look at it o/~

Just for a temporary fix, does anyone know what software command is executed when the phone is slid open/closed.

If so, maybe you could make a simple dbus script to tell the phone when you want it open and when you want it closed

Just a thought, I wouldn't know where to begin