GetPixel not working on iPhone

I've set my texture to RGBA 32 bit using override for iPhone Option.

Read/Write is Enabled. Texture is 512x1024 (tried it at 1024x1024 aswell) Generate Mip Maps OFF Generate Normal Map is OFF Filter Mode Bilinear Wrap Mode Clamp

When ever i do a GetPixel call i get the following error:

Unsupported image format - the texture needs to be either ARGB32, RGB24 or Alpha8

I can only set RGBA 32 Bit with iphone version of Unity Not ARGB32.. It works with RGB24 & Alpha 8. But i Need RGBA 32bit.

Help!