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08-27-2014, 16:48 | #2 (permalink) |
Freak Poster Join Date: Dec 2011 Location: Russia, North Ural Age: 68
Posts: 263
Member: 1702061 Status: Offline Sonork: 100.1651562 Thanks Meter: 306 | Hi, first of all, check vsim voltage , it should be 1.8v-2.8v refer schematics for vsim voltage test point . post result. When phone startup, CPU always check SIM card presence, you must be very regardful, it very quick process, when SIM card absent. |
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