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Just few minutes ago, diagnosed a iphone 7 plus DOA. Checked USB voltage is good on the test point, test battery hooked up will activate the iphone and will charge the battery at 0.9xxA. With failed battery was zero current via charging cord. There was service history on this, there was 2...

I have looked around there are two types: Spot heater (from under) using hot air via 1" or 2'" dia "round salt shaker holes" or planar heater (many types) that heats over large area of PCB. Is spot heater I thought would fit the bill? Goal for our SMD rework for repairs, using hot air and...

iphone 6 plus had M1 jumper installed and meson IC replaced did restored touch functionality. This was for touch disease repair. But I have a new problem: Either cold boot right after plugging battery in or hard reboot using power and home button combo sometimes get into lock screen with...

I have the (circuit specialists pps2116a) power supply that Rossmanngroup uses for finding shorts but no matter how I do, would not output watts at all into virtual short typically around 0.3 ohms. Happens every time when I have VCC_MAIN short and now have IR camera on hand but not useful...

Have a iphone 5 will run off the battery's charge using wake/power button but will not charge the battery. Also with lightning cable will not power iphone and will not detect or prompt boot when lightning is plugged in, no current shown. I know I'm new at learning the "common" faults of...