Motorola i50sx User Manual page 154

2 In an upward motion, grasp the bottom part of the faceplate and detach
it from the phone, while also detaching the upper part of the faceplate
from the phone.
3
Remove the keypad from the phone (or from the faceplate).
4 To replace the the faceplate and keypad, lay the keypad on the phone
body.
5
As shown in the illustration, attach the faceplate to the phone (first at
the top and then at the bottom). Apply pressure until you hear clicks
indicating the faceplate is securely in place.
6
Re-apply power to the phone by pressing the power button located on
the top of the phone.
Phone Body
Faceplate Release Button
152
nextel.com
Faceplate
Keypad