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I mean 00.00 on the display - I use by-3200. When I connect battery appears 5v.

sorry correction UB300 and UB400 with battery: -Now on 2 usb ports (UB300 and UB400) I have 20v but restarts the ammeter . -On 3100 and 3200 I have 0v. Without batteries, there is 5v everywhere - UB300 and UB400 Present PP1V1_UPC but restarts the ammeter. - U3100 and U3200 no PP1V1_UPC and...

Hi, I have an A1706 820-00239-A with no power. I once fixed the PM_BATLOW_L lines. UB300 and UB400 with battery: -restarts the ammeter on all USB -Now on 2 usb ports (UB300 and UB400) I have 20v. Present PP1V1_UPC. -On 3100 and 3200 I have 5v. PP1V1_UPC is missing on both. Without batteries...

Thanks for your help.

In diode mode everything looked the same. I replaced the Q7065 and the MacBook started to charging. CHGR_BGATE with battery and power supply was around 12v all the time. Should I still replace the Q7070 ?

Suddenly, it stopped charging and worked under the power supply alone. I reset smc, DFU to - restore. I have the same working motherboard so I can check something else. Do you have any idea master ?

I'm already running out of ideas.

I tested every option. Each time the motherboard was the reason for the lack of battery charging. I tested the board in another working shell and the same thing happened

I don't have this result anywhere. Can you explain with some exact example. I'm not sure if i am doing it right. C7020 between pin 1 and 2 - 3.3 ohm C7023 between pin 1 and 2 - 2.2 ohm Sometimes there is a moment that for a while it charges correctly immediately after connecting, but it lasts...

C7020 3.6 m ohm C7021 68 k ohm C7072 65k ohm C7023 65k ohm Starts normally on a charged battery alone.

The battery is definitely working - I charged it with another macbook A2338. I even did GSX tests - battery is ok. There is an error on the repaired device - "battery - combined battery test". SYS_DETECT_L - 0v diode 0.57 SMBUS_3V3_BATT_SCL - jumps 2.9v TO 3.3v, diode the same before and...

I know it's an old macbook, but the customer has a fondness for it. Is it worth repairing ? Getting this error on startup.

MacBook only started up on power supply. I replaced the batteries. Now MacBook sees battery but won't charge it (0.7A) - I checked on different batteries. Sometimes it downloads 2A for a while but then drops. The power adapter is original. I did a smc reset. Two usb-c ports have 20v with...

Helpful lesson. Thank you for your help

The fuse was not blown. After replacing it, the machine works

Fuses looked fine was not broken - continuity of the circuit . I replaced it and of course it works. How do you check if such a fuse is defective ?

My mistake. Now: PPBUS_G3H -1.4v U7100: 1- 0v 2- 19,5v 3- 5.2v 9- 0,5v 12- 3,4v 13- 3,4v 15- 0,06v 17- 8.6v 19- 5v 20- 5v 27- 19.5v L3095 - 0v L7130 - 8.5v L7520 - 0v L7560 - 0.7v L7430 - 0v L7630 - 0v L7310/20 - 0v U7501: 23 - 1.3v 22 - 0v 12 - 3.4v 13 - 0v 29 - 1.2 21 - 3.4v

Pin 1 - 8.5v, pin 2 - 4v R7150/51/52 are ok.

I checked three times. ppbus_g3h on F7140 - 4v and 17 - 8.6v U7501: 23 - 4v 22 - 3.3v 12 - 3.4v 13 - 2v 29 - 4v 21 - 3.4v L7310/20 - 10.3 ohm

I found a broken c7584 and replaced it. Now PPBUS_G3H - 4v U7100: 1- 0v 2 - 19,5v 3 - 5.2v 9 - 0,5v 12 - 3,4v 13 - 3,4v 15 - 0,06v 17 - 8.6v 19 - 5v 20 - 5v 27 - 19.5v L3095 - 0v L7130 - 8.5v L7520 - 0v L7560 - 0.7v L7430 - 0v L7630 - 0v L7310/20 - 0v