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PM_SLP_S3_L 0v PM_SLP_S4_L 0v battery is empty 2v edit: i mesured again, it pulsing but very low voltage 150mv edit: 2 i mesured now again and PM_SLP_S4_l reaches now 3v

Hi, as i told you, the machine starts in smc bypass mode. If i connect only charger, without battery, i get the following voltages and if i connect the charger without battery, the fan doesn't spinn: pp3v42_g4h pp5v1_chgr_vdd ppvbat_g3h PP3V3_S5_PWRCTL ppvin_s0_gfximpvp missing voltages...

I just changed u8900, but still the same.

I already reballed U8900, it's still the same but i found something out. If i press and hold the power button and then connect the charger, it turns on and it works perfectly. i also can restart the machine. @2informaticos I will check later and post the values.

Hi Guys, i have a Macbook 820-3332-A, with black screen. if i connect the Charger, the fan starts spinning. Does anyone have a idea, how to locate the error. Thanks a lot!

I Changed u7000 and it works now. thank you very much!

l7030 0V and TBA_AUX_DET 0,9V Do you have any messenger? Otherwise we maybe need a few weeks to find the faulty component or IC:D thx a lot!

i mesured the wrong resistor, the value of r6921 is 0v

l6900 0v and r6921 5,2v for one moment it had the right values but after that, always the values i wrote bevore

Pin 3 ppvin_g3h_p3v3g3h 5,2v Pin 1 ppdcin_g3h_chgr_r 5,2v Pin 2 ppbus_g3h_r 0v Charger is Brand new from apple store and plugged in.?

Hi and thanks for your reply. 3v3_s5_smc 0v and not shorted to ground. All coils on the board have 0v.

Hello, i have a 820-00281 Board which won't turn on. I inspected the board and it doesn't have any corrosion or burned components. All fuses are ok! I mesured pp20v_usbc_xb_vbus. It has instead of 20V, only 5,2V. ppdcin_g3h also has 5,2v ppvin_g3h_p3v3g3h 5,2v ppdcin_g3h_chgr_r 5,2v...