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I think i killed some Fets with my bad soldering. I have a new Weller soldering Station now, soldered the isl6259 again but now i have no ppbus_g3h and no pp3v42_g3h PPDCIN_G3H jumps up and down fast and stops at 0.446V for a few Seconds and Starts jumping again..

I read in another thread "do not connect ac without ISL6259" from you duke. I had some problems with soldering the isl and than i testet with removed isl too. Did i damaged something now? I still have soldering problems.. the solder (60sn40pb 3.5 flux + no clean flux) won't stick to the pads...

okay thanks. one last question till replacing ISL: I bought this chip from ebay https://www.ebay.de/itm/charge-Batterie-Handhabung-ISL6259-ISL6259A-ISL6259AHRTZ-macbook-U7000-U7100/142689859353?hash=item2138fa7719:g:zZoAAOSwh1pZ7Izz Is that okay or is that a "clean" chip that must be...

checked voltage again. Backlight issue: C7796: 40.0V C7797: 40.0V C7799: 40.0V C8317: 40.0V I think the LCD Connector is bad. Because the macbook will power up the backlight so the voltage is high. I Think the last thing is PPBUS_G3H.. it will not charge the battery and dont start with battery...

Okay i will try ISL6259 first. Can i use a macbook air 2014 SMC on the 2015 Logicboard? I'm thinking to buy a donor 2014 board because the 2015 are rare and expansive. And is backlight problem caused of a dead SMC/ISL6259? (will it fixed after PPBUS_G3H have the right voltage?) john, i will...

Ordered a new DC in Board. What do you mean with flat cable? The IO cable from DC in Board? Already ordered. Okay my next step would be to Change isl6259, am i wrong with that? The MacBook Boots to question Mark folder. Keyboard is working too. ​but it seems to Not Charge the battery. Thats...

I saw that on the DC IN Board is missing the PIN for PP3V42_G3H, so i soldered a jumper wire from L7095 to DC IN Board. Now i have green/orange light but no backlight. PPBUS_G3H still 8.18V with and without battery.

Thanks for explaining that. Replaced the backlight fuse F7700. The I/O Cable will arrive tomorrow so i cant check now if the charger goes green. Still no backlight. Will it only work with green light? Checked U7701 VIN: 5.09V BKL_EN: 4.89V BKL_PWM: 0V on resistor R7704 Tested with LCD connected

No Title Oh my god, i'm so dumb.. i'm so ashamed.. you were right Louis , didnt checked the i/o cable correctly. There is Pin Numbers 21 Missing and thats the Pin for PP3V42_G3H. I ordered a new cable now. Hopefully it will fix it and i can use that MacBook for my study. Look at the picture...

Diode Mode SDA and SCL on Battery Connector SDA: jumps from ~0.088 to 0.762 every second SCL: 0.768 constantly sorry for this dumb question but: is it right to do diode mode with power supply? because i have.

The fuse from backlight is dead but thats not the problem now. the board turns automatically on with magsafe plugged in. Without spin on off on off on off. directly on and spins faster in time. R5100 is good. 99.1 kohm PPBUS_G3H: 8.18V with good charger. What should i do next?

Checked C7799: .010V Did a beep test on fuse and it dont beep. I think i destroyed the fuse... Because i touched Pin 2 with the Metal Plate from the Chip beside and there was little Spark. Did i destroyed the fuse? I checked PPBUS_G3H again: 8.18V Is there corrosion under SMC? Look at...

The I/O Cable looks good on each side. I will check that later after work again. Is the I/O Cable important for green light? Will it go green without I/O Cable? I didn't see any corrosion, i think the previous owner cleaned it.. I checked the Voltage without battery. Will check the Voltage...

Hello i'm new here, i have a macbook that a want to repair. It has no green/orange light. When i plug the magsafe in, it starts sometimes. I see the questionmark folder on screen with holding flashlight (no ssd in). my messurements: PPBUS_G3H = 8.1V PP3V42_G3H = 3.428V PPBUS_G3H_R = 8.2V...