O.K. than I'll try to make it by my own. Maybe with some modifications: 1. I'll try to add 2 additional keys (below the unlabelled keys of the Motorolas keyboard ) 2. I'll try to attach a hall diode and connect it so, that its signal will be reported as a keypress. I'll check if the magnetic field of the speaker is strong enough to be detected from the hall diode. If not, I'll add a magnet too. 3. I'll install a metallic coin in the keyboard to be able to attach the phone on my custom build magnetic car phone holder. (Now the coin with some cuts on it is replacing the rubber near the Sim card)
Is the QWERTY back good connected to the phone? Is there a chance that the QWERTY back could fall from the phone during the use of it? Should I provide a 4 bolt holes on the edges of my QWERTY back and connect the back wit the phone trough replacing the original 4 bolts from the phones edges with a longer bolts trough the QWERTY back?
And the last question: Is there a way to buy the hinge from the partlist, without buying the BT keyboard?