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Water damage, at beggining no trackpad no keyboard i check and find short on ut320 and ut350 . chnge them and trackpad start working, i try working keybord and new board connecting keyboard and nothing change. What next to check?
Client say that nothing special happens but on the beggining it switch off only when they charge battery, on battyry only didnt switch off, now it switch off on charger and on battery lone too.
it work when its on target mode and on recovery, didnt switch off,
820-01949 randomly shut off, no water damage, get to dfu but switch off and restart. I use some hot air on 7100 but nothing change. on different battery the same.
problem is whit charging, i leave him for night and it charge a little and start, i get even to recovery but cant instal system because its not charge , i saw that if i will switch off computer will charge when switch off but very slow. When use dfu blaster when i push dfu computer restart but i...
water damage but someone before me try to repair. there was short on c7800 on line pp5v_bstlq_vout_spmu. change it and now on aon i got 3,8v i feel that touchpad is working but cant get to dfu and dont start. dfu blaster dont see it too.
aplicantion didnt see the macbook , what i discover is that when the cabel fod dfu is connected and i connect usbc its not charging, when i disconect dfu cable and connect charging its charging , then i connect dfu and its still charging.
PP3V8_AON_SPMU_ISNS_VIN - 348, voltage jumping like 0.4 v -> 1v -> 1,4 v circuit no short check wrong - sorry touched something small too...
PP1V06_s2sw_dram
PPVDD_SOC_S1
PPVDD_PCPU_AWAKE work same - 24.9 ohm on diode 30 not pure short as you write
U7700
PP3V8_AON_SPMU_ISNS_VIN - short on leg 2 - 0v , leg 1- 348 - voltage jumping circuit
PP1V5_VLDOINT_SPMU - 276 , 0v
PP3V8_AON_SPMU_ISNS_VIN 347 . voltage jumping circuit
PP5V_BSTLQ_SPMU 442 , voltage jumping circuit
short on line PP1V06_s2sw_dram
PPVDD_SOC_S1...
no its not get in dfu, but when i open it its not taking any power , when its close it take power so i disconect jr200 and then it take powre whit open lcd but dont get to dfu i try many times
PPVDD_PMU_LDO_PREREG - diode 308 , 0v
PP1V5_VLDOINT_MPMU - diode - 240 , 0v
PP1V8_S2 - diode 337 , v 0v
PP3V8_AON_MPMU_ISNS_VIN 348 , voltage jump some like 0,14 - 0,72 - 1,61 v and go around and rising
PMU_VDD_HI diode 586, voltage same like pp3v8
PP1V25_ 2 - 276 , 0v
VSS_ANA_MPMU - short