Stephen
Meow Meow MEOW!
Last Activity: Yesterday, 05:16 PM
Joined: 04-03-2020
Location: USA 🇺🇸
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Bump. Need this as well -
Yeah I think it did I also left the wire on the Pins and kept trying and eventually it worked. So something along the lines forced it to awake and the customers data is retrieved. Shout out to you for this insight, storing this knowledge in the back of my head. Always good to hear from you mon, also btw, I sent you a message directly...Leave a comment:
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Same Cables, something about shorting DFU didnt work however I have a feeling it did something to the board when I lined them up, but after installing the board back in, I tried DFU blaster and it forced it this time when previously it just wouldn't do anything. Moving forward I did try DFU revive, but that failed, so I downloaded the IPSW, dragged and dropped and finally worked! Backing up his DATA now.Leave a comment:
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ALIVEEEEEEE!!!!!Leave a comment:
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ok plugged everything back up and I got DFU up wtf!? IM attempting revive...Leave a comment:
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Ok attempted this and no luck. Sadly I think this is a dead socLeave a comment:
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I could be correct but no brain no data, SOC could be the main issue since I cant even get DFU to be forced to turn on.Leave a comment:
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Attempted all of these and DFU wont even show up for this computer so my issue is different than the other guy. IM sure DFU doesnt want to play fair at this point.Leave a comment:
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20volts on Q5230 on Pin 1 down to 3 Pin 4 1.7volts, 20 volts pin 13, 15.5volts on Pin 12, Pin 11 = 12.8volts, 12.8 volts pins 10,9,8,7.
Q5240
Pin 1, 2,3, and 13: 12.8Volts
Pin 4: 0 volts present
Pin 12: 18volts
Pin 11: 12.8volts
Pin 7-10: 12.8volts -
A2779 MacBook Pro 14" MOST WEIRD ISSUE I HAVE EVER SEEN
MacBook Pro 14" A2779 having a no power issue. power raise are ALL HEALTHY! I probed all of them ALL healthy.
Getting 20volts 4amps battery charging, etc. Disconnected battery to see voltage and amps. Getting 20volts 0.135amps-0.139 with no battery connected. Disconnected trackpad to see what the fans would do, they go into full blast, odd behavior, plugged into an LCD external nothing displays, ok...this is freaking weird, going down this rabbit hole I keep trying everything. I even went out of my way and tested a working battery I had in stock at the store. LIKE Nope nothing same... -
SMBUS lines on battery are good 18K on the resistors.Leave a comment:
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MacBook Air 13" M3 A3113 - No Power issue (12.28Volts Present)
Had tremendous liquid damage on this board, I was finally able to get the board up to 12.28volts on PPBUS_AON. I checked the power rails and I know something is off because I'm still getting 5Volts 0.07-0.010 amps This board suffered a lot of damage but miraculously I finally got 12.28 volts! So I know I'm close but its still not powering on, I checked to see if the board was in DFU or recovery since that usually tells me its a Firmware or SOC issue. Nope nothing, tried to force it into DFU and nope nothing. Im kind of at loss here since I am getting power on PPBUS_AON, PP3v3, PP1v2, PP3v8, etc.... -
Awe I do not. I am just using the board schematic and PDF to go off this repair.Leave a comment:
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Any thoughts?Leave a comment:
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SDA and SCL 1 M ohms on both lines.Leave a comment:
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Are we talking the SDA and SCL lines? Because those measured nothing when plugged into that port. I measured them at .45volts SDA and SCL is 0volts. I am missing 3.3 volts for sure.Leave a comment:
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Well battery is holding a charge, I tested the lines by itself and the battery is presently sending voltage down the lines. But I will get back with measurementsLeave a comment:
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A2991 Logic Board issue, 20volts 0 amps help!
Customer plugged in samsung monitor into the board and used it as a power supply, killed UG800 and UG400. I replaced those two with an exact donor board we had In stock and working, board pulls 5volts and then gets like 2.89 amps on the left side. The singular port is the port that failed. Used a perfectly working chips from donor (board was locked) Now I only get 5volts 0 amps on that power and then 20volts 0 amps on the two left side ports, I checked for DFU and nope nothing, computer not turning on. No shorts present anymore. I am confused as I used the exact components from an identical... -
A2991 logic board issue, 20volts 0 amps help!
Customer plugged in samsung monitor into the board and used it as a power supply, killed UG800 and UG400. I replaced those two with an exact donor board we had In stock and working, board pulls 5volts and then gets like 2.89 amps on the left side. The singular port is the port that failed. Used a perfectly working chips from donor (board was locked) Now I only get 5volts 0 amps on that power and then 20volts 0 amps on the two left side ports, I checked for DFU and nope nothing, computer not turning on. No shorts present anymore. I am confused as I used the exact components from an identical... -
A2442 MacBook Pro 14" Two Left SIDE USB C ports charge but no data
Right SIDE usb.c port charges and transfers data without issue, two left side uSB c ports charge but do not receive or see data. Was liquid damaged, and repaired significantly and thought we were in the clear but appears this is the last issue that is rearing its head. I am trying to locate the RETIMER chip that communicates the DATA TX/RX but I cannot seem to find it on the schematic or maybe I am just so tired my eyes wore out lol. Any help would be great.
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