Samsung troubleshooting guide for the Galaxy J7 model SM-J700H in PDF. TSHOO documents in Samsung service material normally cover fault-finding procedures with block diagrams, circuit excerpts and measuring points for faults such as no power, no charging, display, audio or network problems. Use it with a multimeter to follow the recommended checks step by step. Make sure the phone is the H variant, since other SM-J700 versions can differ in radio hardware.
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