99%लोग नहीं जानते हैं/ Charging problem solution/ iD ,Dp,DM, ka GR & Voltage Tressing 

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Qualcomm pmi ic फुल चार्जिंग वर्किंग प्रोसेस ✅ mtk फुल चार्जिंग वर्किंग प्रोसेस✅samsung फुल चार्जिंग वर्किंग प्रोसेस✅ All चार्जिंग ic All problem solution ✅
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Process and solution✅
Mic section full explain ✅ speaker section full explain✅ earphone section full explain✅ network section full explain✅ network All problem solution ✅Qualcomm pm 439 boot sequence And Double shooting process ✅ mtk pm6357boot sequence And Double shooting process ✅Qualcomm 2 pm pm6 60And PM 660L boot sequence And Double shooting process ✅ mtk 3 power ic 5g mobile Boot sequence And Double shooting process ✅ All 4g And 5g dead mobile folt finding and trks ✅ hot testing and kuld testing on PCB ✅ DC Reading High Booting And Solution ✅
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How to use Multimeter
.How to use Dc power Suplay
.Explain about boost | buck\LDOCircutit
.Explain about GR DIODE VALUE
.EXPLAIN ABOUT cOOL TEST & HOT TEST
.How to remove pasted ic
.How to reball CPU EMMC PMU