You can update your status on the iPhone because I do it on my iPod, all you have to do is click onto where is says "signed in as .." then you can do it from there. At the top of the page just click update status, works fine on iPod/iPhone.
1. Remove the lever blade by undoing the lever blade bolt.
2.Make sure lever piston doesn't pop out.
3.Take TPA out of old lever blade and transplant into new lever blade
4.Put lever blade back and do the bolt up.
Sort of hard to describe but oh well