0.10 - 0.20 amps is normal boot

iPhone 6/6+

    Flexion Based faults
        Touch Faults
            Meson M1

        Searching No Signal
            Baseband CPU U1, V1

        Error 9
            CPU edge traces

    No Backlight
        1. FL2024
        2. check anode of backlight circuit. if shorted check backlight circuit for blown caps, diode and coil

    Error 27        Battery update
    Error 4013      NAND circuit 
                    1. check NAND caps.
                    2. Freeze spray NAND (will show if hardware [a] or software [b])
                    3a. Repeal and reball NAND
                    4a. Repeal and replace NAND
                    3b. Repeal, reprogramm and reball NAND

iPhone 6S

    No Backlight
        1. FL4211



iPhone 7/7+

    Lagging touch and Audio Fault
        Audio IC ball on C12 pad cracked

    No boot/power and/or boot looping and Error 4013
        Baseband PM balls cracked

    Charge problems (bad cables) history and Error 4013
        Tristar

SMC's
    digikey

I.C.'s
    Alixpress
    rossmann