Recent content by macfix_hh_25

Thanks. With old working battery, the MacBook is doing fine. I will try a new replacement battery, which hopefully does not cause same weird problem.

Hi, MacBook came in for battery replacement. With the new battery (A1618, 11.36V, 99.5W, 8755mAh) installed, the MacBook powers on for a minute ore two and then shuts off. After shutting off it will not turn on again. Unplugging the battery doesn't help. But now comes the weird thing: Leaving...

with camera and backlight conneceted, it starts normally. (Backlight doesn't turn on). Only Backlight connected it starts normally (Backlight doesn't turn on) only camera connected it starts normally only EDP display connected, it fails to start

yes, it starts normally to MacOS

Thermal camera also doesn't show unsual or extrem hot areas / components

I've checked for for damaged connectors and knocked off components. It is all good and in place. I also tested with a different good working lid from an other machine but got the same results. (Starts booting and then fails). I recognized a drop in voltage from 20.71V to 14.96V before booting fails

Yes. With new display, same problem

Hi, I've got a MBP A2442 with booting and display issues in the shop. It came in for display repair, no backlight and not starting / booting. With disconnected display cable the MacBook starts normally and boots to user login surface. (checked with external montitor) With connceted display...

Numbers from OpenBoardData Project SMBUS_3V3_BATT_SCLDefaultd0.935 SMBUS_3V3_BATT_SDADefaultd0.937 Would say, very close to my readings in case the value is shown in Kilos?

I don't have a good working board here at the moment. Do you know, what reading should be like?

Q6950 pins 3 to ground = 964 Q6950 pin 6 to ground = 954 Q6950 pin 1 to ground = 469 Q6950 pin 4 to ground = 379 With the other Multimeter, I get different readings on Pin 3 (1260) and Pin 6 (1248) to ground. Pin 1 and pin 4 are the same.

I checked again with different multimeter: Q6950 Pin3 SMBUS_3V3_BATT_SDA to ground in diode mode= 964 Q6950 Pin 6SMBUS_3V3_BATT_SLC to ground in diode mode = 957 In diode mode, I checked before Pin 4 to Pin 3 = 607 and Pin 4 to Pin 6 =1906 (always, red prob on pin 4) Have I done anything wrong?

Red prob on SMBUS_3V3_BATT_SCL/SDA and black on I2C_PWR_SCL/SDA_R1 = OL Red prob on I2C_PWR_SCL/SDA_R1 and black on SMBUS_3V3_BATT_SDA= 650 _SCL= OL Does it mean, Q6950 needs to be replaced?

Sorry! Thanks for the HOW TO collection. That's very helpful. Q6950; SCL=1254, SDA=1272

C7023 = 2.4 ohms Q7065 isn't shorted D-S pins (222 - 775k Ohms) = OL in diode mode diode mode to ground at SCL/SDA lines of battery bus; before and after Q6950 = OL