Sony Ericsson Xperia Mini Pro Working Instructions page 49

Replacement: Hinge FPC & Hinge Assy Adhesive Foil
Place the bottom sheet in the proper position by aligning the
two guiding holes with the guiding pins, and then press to
secure its attachment.
Turn the Hinge Assy over and peel off the protective film.
Accurately align the Hinge FPC with the two guiding holes
and press to secure solid attachment.
Peel off the protective film.
1251-8382 Rev 2
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Sony Ericsson Mobile Communications AB – Company Internal
Working Instructions (mech)
49(85)