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  1. R

    820-02841 no led magsafe, 20v 0A

    sorry all fuse are good. When I connect the power adapter only to JE701 (UF500), I do get PPBUS_AON = 12.02 V, but not on the other two connectors JE700 and JE900. On the tester I have 5 V 0 A and PPBUS_AON at 0 V.
  2. R

    820-02841 no led magsafe, 20v 0A

    all fuse are good. i complete my work. I have PPBUS_AON= 12,02V , when I connect the power adapter only on the JE701 (UF500), I have on the usbc Tester 5V 0,250A the other 5V 0A
  3. R

    820-02841 no led magsafe, 20v 0A

    P_IN : 0 AUX_DET: 0V SMC_RST_IN: 0V VDDA: 0V VDDP: 0V EN_MVR: 0V AUX_OK = 0V A/BMON = 0V , 0V I thinks the problem is before, I use 96W power adapter apple
  4. R

    820-02841 no led magsafe, 20v 0A

    Hi, i have this board, very clean no liquid, the original battery seems dead (0V) (if connected stay at 5V). I put a new battery on the Mac but no charge (20V 0A). I haven't the light on the magsafe 2. i test the usb-c with tester by Qianli, all ports seems good and no LDO in short. I haven't...
  5. R

    820-00597 Boot with apple logo freeze

    no work with this file. only the led 1, nothing when I push the button.
  6. R

    820-00597 Boot with apple logo freeze

    ok thanks, I try and I come back
  7. R

    820-00597 Boot with apple logo freeze

    where can I find a good bios please?
  8. R

    820-00597 Boot with apple logo freeze

    no the keyboard doesn't respond. impossible to boot with alt key. strange problem
  9. R

    820-00597 Boot with apple logo freeze

    Sorry for my long time answer, I was in holiday. I try without J6600 always freeze in apple logo. I remove hdd/ssd, airport same.
  10. R

    820-00597 Boot with apple logo freeze

    no bar progress. no keyboard I can't safe mode, I can reinstall. what is SMC BYPASS on iMac? I can't access boot menu because I haven't access keyboard (mouse not blinking). thans
  11. R

    820-00597 Boot with apple logo freeze

    Hi, i have this board with logo apple and chime but no more things. I haven't led on mouse connect on usb. I have PP5_S4_SRC = 5V. All diagnostic led are on. I can't reinstall system or test the Mac. Do you have an idea? thanks
  12. R

    820-02016 5V 0,04A

    No dfu, I don't waste time more the customer give up. thanks
  13. R

    820-02016 5V 0,04A

    PP1V25_S2 = 0,266ohm R770F =0 ohm ok after replacing L77D0 PP1V25_S2=1,25V but no work same problem
  14. R

    820-02016 5V 0,04A

    yes I have some voltage on buck
  15. R

    820-02016 5V 0,04A

    buck seems normal (flexbv database diode mode). do you want all value?
  16. R

    820-02016 5V 0,04A

    thanks for your answer U8100 LDOs PP1V2_S2=1.1V , diode=0.328 PP3V3_S2_UPC=3.3V diode=0.458 PP1V8_AON_MPMU=1.8V diode= 0.366 MPMU_VREF_ADC=1.47V diode 0.158 U7700 LDOs PP0V72_S2_VDD_LOW=0.740V. diode=0.270 PP1V2_AWAKE_PLL 1.199V diode=0.380 CAP_PPSPMU_VLDO9=1.803V. diode=0.5...
  17. R

    820-02016 5V 0,04A

    Hi, I have an A2337 (820-02016) with 5V and 0.02A and 0.04 A (cycling reboot my tester USBc) on both USB-C ports. - PPBUS_AON = 11.99V - PP3v8_AON_VDDMAIN = 3.8V - PP5v_S2 = Missing - PP3v3_S2_UPC = Missing - PP1v25_S2 = Missing - PP1V8_S2 = Missing - PP3v3_UPC0_LDO = 3.292V -...
  18. R

    820-02098 orange light but never green

    hi, ok for the green light. I check the data cable is OK. Voltage: SDA= 0,1V SCL= 0,7V in diode mode with battery, no power: SDA=0,456V SCL=0,456V in diode mode without battery, no power: SDA=0,52V SCL=0,52V
  19. R

    820-02098 orange light but never green

    Hi, i have this board with orange light magsafe 3 but not green, when I test the Mac in MRI, can't detect power adapter. I use an original power adapter 96W with original cable. the board is clean, no liquid, nothing burn. I try the board without battery (orange led), is it normal? the Mac work...
  20. R

    820-1700 Battery original detect but to replace

    ok but not work on Mac? how do you do? parallels? yesterday, I try another battery functional, the Mac work perfectly with good battery. I think I receive bad battery by apple. thanks
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