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    A8 CPU welding
    A8 CPU welding
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    This chapter mainly explains:

    A8 CPU welding--shielding cover removal

    Scrapping the edge glue of chip

    Chip disassembly

    Flatten the low melt solder on CPU pad

    De-glue the chip and the motherboard

    Layer the CPU & Flatten the low melt solder

    De-glue middle layer and cover

    Cleaning&flattening the solder on the mid layer

    Cleaning the flatten back pads

    Mid layer reballing

    CPU reballing

    Falttening and cleaning the cover

    Cover reballing

    Motherboard pad treatment

    Weld the CPU lower layer

    Cover welding

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