hi
macbook A2485 2021 model
its remote management locked.
i have attached the original bin .
do we have solution for it.
macbook A2485 2021 model
its remote management locked.
i have attached the original bin .
do we have solution for it.
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Hi all,
I recently got my hands on an M1 MacBook Pro (2021, A2485) that I suspect suffered some liquid damage. I have a hot air station and the basic tools to work on the board, but I’m new to SMD repair and would love some guidance before diving in.
Here’s what I’ve observed so far:- When I power it on, I hear the MacBook chime and, with a flashlight, I can see the Apple logo on the screen. However, it never completes the boot and eventually powers off. My plan is to try to get the display fully working first, then tackle the boot issue.
- I did some basic resistor
08-24-2025, 02:16 PM -
Hi there, currently working on 820-02100-A logic board - No boot Chime, no Power on. - Very Minor Liquid Exposure - All cleaned with IPA , did a partial ultrasonic as well . Clean and dry.
MagSafe - Orange light cycles off then back on every 5-7 seconds
USB-C Ports - All 3 get to 19.9V/20V - .5A then Cycle ever 5 seconds.
All 4 CD3218 Chips have been checked at their LCD-CORE 3V5 and 1V5 lines at the local Capacitor, all are getting 1.5 and 3.5V But each have a different Voltage drop when the board cycles.. See below
(PP1V5_UPC_LDO_CORE) - AT EACH CD321... -
Hi everyone,
I’m trying to remove a component from a 2021 MacBook logic board, but I’m having trouble.
https://www.electronicsdatasheets.co...s/tlv70733pdqn
I’m using hot air at 480 °C with full airflow and good flux, but the solder paste is not melting.
I know there’s a lot of thermal dissipation from the board, and I suspect the copper planes are absorbing most of the heat.
Do you have any tips for this kind of board? Would a preheater help?
Thanks in advance!
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Hello everyone,
I'm currently working on a MacBook Pro A2485 and have encountered an issue with the LCD. Instead of opting for a full replacement, I'm interested in performing an in-depth repair on the LCD itself. I'm hoping to find the schematic for the LCD in order to understand its architecture and troubleshoot more effectively.
If anyone has access to the schematic or can point me in the right direction, I'd really appreciate it. My goal is to repair the components and connections within the display, rather than going for a costly replacement. I've been in the notebook...10-05-2024, 08:02 AM -
Hello everyone,
I'm currently working on a MacBook Pro A2485 and have encountered an issue with the LCD. Instead of opting for a full replacement, I'm interested in performing an in-depth repair on the LCD itself. I'm hoping to find the schematic for the LCD in order to understand its architecture and troubleshoot more effectively.
If anyone has access to the schematic or can point me in the right direction, I'd really appreciate it. My goal is to repair the components and connections within the display, rather than going for a costly replacement. I've been in the notebook...
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