Sony Xpreia acro S Working Instructions page 33

Replacement: Ear Speaker and Foil Adhesive WP Receiver
Hold the clip and insert the Touch/Display Front Cover Assy
into the cavity.
Loosen the clip to press the Ear Speaker for 5±1 seconds.
Do not press the clip!
The rubber of the tool presses the Ear Speaker when
pressing as shown.
Press the clip and remove the Touch/Display Front Cover
Assy.
1267-1071 Rev 2
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Sony Mobile Communications AB – Company Internal
Working Instructions (mech)
33(76)