Need for this password remove
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Good afternoon. My client brought me a Mac A2251 EMC 3348 that he bought at a sale. The computer is completely iCloud-free, but it came with MDM installed. He has tried contacting the company that provides the MDM in every way possible, but they are unwilling to offer a solution. The device is:
Model A2251 EMC 3348. Serial Number: C02G54CZML85
Apple MacBook Pro Core i7 2.3, 13" 2020, 512 GB SSD, 16 GB RAM.
I've tried changing the serial number of the SoC ROM MX25U3235F, but it hasn't worked:
C02G54CZML84 only works up to Monterey.
C02G54CZML86 doesn't work (I... -
Hey! This is a A1278 macbook 2011.
Problem: Not turning on / No green light
Im using by3200s charger.
Voltajes:
PPBUS_G3H = 12.26v
SMC_RESET_L = 3.3v
PP3V42_G3H = 3.42v
U7000 =
Pin 1 CHGR_AGATE = 0v
Pin 2 CHRG_DCIN = 19v
Pin 3 CHRG_ACIN = 4.6v
Pin 10 SMBUS_SMC_BSA_SDA = 3.3V
Pin 11 SMBUS_SMC_BSA_SCL = 3.3V
Pin 12 PP3V42_G3H = 3.42v
Pin 13 CHRG_RST_L = 3.3V
Pin 14 SMC_BC_ACOK = 0.8V
Pin 19 PP5V1_CHRG_VDD = 5.05V
Pin 20 PP5V1_CHRG_VDDP = 5.03V... -
Hello, I am looking for any and all files related to the mainboard for 820-2565-A (13" Macbook Pro A1278 mid 2012) schematics/board view.
I looked through forum search results and google and was unable to find a board view file, I found a pdf of all the schematics but I don't know where the parts physically are on the board as this is my first macbook board level repair attempt.
The macbook charger has a green light, the battery has been replaced and OS reports Normal status but Not charging. After cleaning a corroded capacitor it crumbled off the board. There... -
Subject: Help Needed: MacBook A1278 (3115) No PPBUS_G3H Issue
Hello everyone,
I'm working on a MacBook A1278 with the 3115 logic board and facing an issue with no PPBUS_G3H voltage. Here's what I've checked so far:- U7000 Measurements:
- Pin 3 has 0V, even though R7012 shows 16.5V from PPDCIN_S5_CHGR.
- Resistors:
- I measured R7010 and R7011 with one leg disconnected, and both tested OK.
Based on these findings, I believe U7000 needs to be replaced. However, I have a related question:- If I also decide to replace the SMC, do I need to order it pre-programmed,
- U7000 Measurements:
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please clear me this bios efi macbook macbook pro 13 inch a1278 820-2879...
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