Phone will not answer call when i flip phone open, i have to flip open then push button. Is there some way of fixing this?

To use Answer button on the BlackBerry smartphone, complete the following steps:
1) On the Handheld press Call button.
2) Press the Menu key.
3) Select Options.
4) Select General option.
5) Select Auto answer calls to, (Never).
6) Select Auto end calls to, Into holster.
7) Click on save.
I hope I was able to help you.
Thank you for using Fixya.

With the phone closed, hold down the multi-function button on the lower-right side of the phone for a few seconds; that will lock all of the buttons on your phone until you either a) open the phone, or b) hold down the same button for another few seconds to unlock the keys.
To the best of my knowledge, there's no way to set the button to ALWAYS be disabled when closed; you have to lock it every time you close the phone.
NOTE: Locking your keys can create another problem, at least on my phone, where I've disabled the option to anser a call by flipping it open (I prefer the option to view the caller and ignore it if it's not a priority). When I receive a call with the phone locked, I have to wait a few seconds after flipping the phone open before pressing the "answer" key; if I answer too soon after flipping it open, the phone tends to lock up for about 30 seconds, which obviously kills the call.

try this strip ur phone complety and clean it with a old toothbrush, leave it for 15 mins and put it back 2 gether again

On the left side of the phone are two button: A rocker button and a push button. With the flip CLOSED, push the rocker button down. you will see Style:Silent. Push the other button until Style:Loud comes up. Push the rocker button down again to exit the function. Open the Flip and use the rocker button to set the Ringer volume. You can set the ringer volume however you want for each style. My phone swiches by itself constantly when I put it in my jeans pocket, very annoying.

you need to go to settings on the phone and and active the answer when the flip is open.

Usually this means that you need to take it to a repair shop to have the keypad replaced but truthfuly it would be cheaper just to get a new phone. Hope this helps =)

That happened to my phone and I had to return it, there was no fix.