Sony Ericsson Z525i Working Instruction page 84

3. Pull the rear speaker cloth towards its bottom left
corner in a shearing fashion until the rear speaker
cloth is free of the antenna assembly.
4. Remove any remaining residue from the rear speaker
assembly (if it is not being replaced).
3/00021-1/FEA 209 544/597 F
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Step-by-Step Instructions
Working Instruction, Mechanical
84(115)