Sony Xperia T2 Ultra Dual D5322 Working Instructions page 59

Replacement: Key On/Off & MComp Assy Ring Power
Attach the MComp Assy Ring Power into the cavity of the
Display Assy as shown.
Press to secure its position.
1282-8956 Rev 1
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Sony Mobile Communications AB – Company Internal
Working Instructions (mech)
59(73)