Hello. Have this Apple Mac pro 13" A1502 820- 3476-A that show no power, no green light on charger. i m in need of schematic and boardview

or can somebody download this schema and boardview? it looks similiar but i dont have enough points to download
[url]https://www.elvikom.pl/schemat-apple-macbook-pro-a1502-j44-mlb-4gb-051-0052-820-3536-t33066.html[/url]https://Hello. Have this Apple Mac p...view? it looks

[FONT=Liberation Serif][COLOR=#000000][FONT=Liberation Serif][SIZE=12px]OBDATA Raccoon Computer V1 for Macbook Pro Air 2012-2025

It's the end of three years of work, it costs money, it costs time, and you owe me a beer.

This is the new database for FlexBV[/SIZE][/FONT][/COLOR][/FONT]
[FONT=Liberation Serif][COLOR=#000000][FONT=Liberation Serif][SIZE=12px]it's optimized to work with it[/SIZE][/FONT][/COLOR][/FONT]
[FONT=Liberation Serif][COLOR=#000000][FONT=Liberation Serif][SIZE=12px]by using board ID has Default name, give us the opportunity,[/SIZE][/FONT][/COLOR][/FONT]...

Hi everyone, I want to share my tech experience with a MacBook Pro A1502 late 2013 that won´t turn on.
The computer arrived dead, when connected to Magsafe no lights on the connector.
Here some Measures at some testpoints on de LB 820-3476-A :

PP3V42_G3H 1.7V
PPBUS_G3H = 0V
PPVBAT_G3H_CHGR_RE = 0V
PP3V3_S5 = 0V
PP5V_S4 = 0V
P5V1_SW = 5.5V
PP3V3_S0SW_SSD =0V
PP3V3_S0SW_SSD_FET =0V
PPDCIN_G3H_INRUSH = 16.10V
PPDCIN_G3H_CHGR = 16.10V
PP5V_S5 - 0v
PP3V3_S5 - 0v
PP3V3_SUS - 0V
PM_RSMRST_L - 0v...

Hi guys trying to help a customer thats trying to revive an old Macbook its got a defunkt Icloud on theres so I read the Rom and cleared $svs region out and replaced with FF but now only a black screen, completely wierd?. I have attached the original dump and the dump I cleared, can anyone assit please, now occasional chime and black screen, have tried another bios chip of a donor and it work but obviously wrong serial and bad me region made it super slow,

Any help appreciated...

Hi guys,
I have a macbook A1502 that does not charge if the battery is completely discharged!!
If I unplug it and reconnect it to the motherboard it starts to charge well, and it charges up to 100% and works.
If I let the battery completely discharge, and connect the charger, the magsafe2 LED turns orange but it never charges the battery.
What do you recommend I try?
I tried to change the battery with a new one and the problem did not solve it​
Code mainboard 820-3476-A

[B][B]Data Analysis & Test Point Isolation – MacBook A1502 (820-3476-A) Battery Won't Charge After Full Discharge[/B][/B]


This guide will use [B]data-driven testing[/B] and [B]precise test point measurements[/B] to isolate the [B]root cause[/B] of the issue. [HR][/HR] [B][B] Problem Breakdown & Failure Mode Analysis[/B][/B]
[TABLE]
[TR]
[/TR]
[TR]
[TD][B]Battery charges after manual reconnection[/B][/TD]
[TD]SMC detects battery, U7000 enables charging[/TD]
[TD][B]SMBus failure, battery low protection...

[B][B] MacBook A1502 (820-3476-A) Battery & Charging Issue[/B][/B][LIST][*][B]PM_BATLOW_L = 3.34V with charger, no battery[/B] → [B]Normal behavior[/B] (since it's pulled up to 3.42V).[*][B]PPBUS_G3H is too low (~10-11V with charger, 12.65V without battery)[/B] → [B]Charging circuit issue[/B].[*][B]Battery does not charge when completely discharged[/B].[/LIST][HR][/HR] [B][B]Step-by-Step Deep Diagnosis[/B][/B]

[B][B]Step 1: Check Charger & Adapter Sense Circuit (ADAPTER_SENSE)[/B][/B][LIST][*][B]You measured ADAPTER_SENSE = 2.8V[/B].[*]Normal range should be [B]around...

[B][B]Advanced Troubleshooting for PPBUS_G3H Voltage Drop on MacBook A1502 (820-3476-A)[/B][/B]


Since you're [B]getting only 10.11V on PPBUS_G3H with the battery connected,[/B] but a normal [B]12.65V with the battery disconnected.[/B] [HR][/HR] [B][B]Step 1: Identify the Main Issue[/B][/B]
[TABLE]
[TR]
[/TR]
[TR]
[TD][B]Battery disconnected, charger connected[/B][/TD]
[TD][B]12.65V (Normal)[/B][/TD]
[TD]Charging circuit (U7000, Q7130) is likely functional.[/TD]
[/TR]
[TR]
[TD][B]Battery...

Hello again,

got an MacBook Pro from 2015, model A1502 and motherboard version 820-3476-A.

Device died over night on charger.

Currently I did the follow things:

1. Checked visuell the board, test with another MagSafe-Charger and with another DC-IN-board too
2. Measured 16,5V on ​PP18V5_DCIN_FUSE but 0V on ADAPTER_SENSE and 0V on PP_3V42_G3H and 0V on PPBUS_G3H but 16,5V goes to U7090
3. Because of corrosion and bad resistor values I changed these components: U7090 / C7094 / C7095 / R7095 / R7096 / L7095 / C7099 -> But further...

Heloo

Friends
Apple MacBook Pro A1502 (820-3476-A)

efi password please remove...

thank you for the explanation but the macbook is an A1502 and does not have usb-c...

Please help me, my macbook pro a1502 has a bios i think its corrupt cause of 1kb extra there was. please fix its...

I imagine most of this site's audience isn't exactly the "Mac crowd". Personally, I do have a MacBook Pro (a circa-2015 A1502 model running macOS 11.7.10 "Big Sur"), mainly because it "plays nice" with my fire-wire DV/HDV camcorders better than most modern PCs, but it is far from my primary system....

Alguien que me apoye a hacerle un clear... esta bloqueado el equipo ...
Macbook a1502 emc 2678

Someone who can help me to do a clear... the computer is blocked...
Macbook a1502 emc 2678​


[SIZE=24px][COLOR=#e74c3c]in English please...[/COLOR][/SIZE]Alguien que me apoye a hacerle un clear... esta bloqueado el equipo ...
Macbook a1502 emc 2678

Someone who can help me to do a clear... the computer is blocked...
Macbook a1502 emc 2678​


[SIZE=24px][COLOR=#e74c3c]in English please...[/COLOR][/SIZE]...

unfortunately I haven't read the chip dump yet
serial number C02N81HJG3QJ
Macbook pro 13 a1502
EMC2875
motherboard 820-3476-A​...

Good day to all,

Can anyone who has a good dump for this model? Macbook Pro A1502 emc 2678 has no display board model 820-3536-A, i attach the dump.

TIA....

Hello again!

I have a macbook pro a1502, which works without problems, the problem comes when I turn it off completely, and try to turn it on, the only way is to disconnect the battery and charger, I reconnect the battery and the charger, and only then does it turn on. I already reset the smc, but the fault persists​...

Greeting..

After a long sleep, my macbook pro 2015 a1502 won't turn on.

When it is charged, it can be seen that the light is green then orange, but with SMC Reset and NVRAM both cannot also solve this problem.

After I opened the bottom cover, I saw the fan spinning for a short time for about 1 second when the power button was pressed

guess what I should check first,

Oh I already have the scheme, it's just that I don't know where to start the inspection?​

Hello my friend
I have a macbook pro a1502 mid 2014
I removed the efi password but when i wanted to reinstall os i was surprised by an icloud pin
what should i do ?...

So Ive got a Macbook Pro here with no power or charging light.

I have taken the board out and did an inspection and found a small bit of water damage on C1267 (PP1V05_S0). Cap fell off as I cleaned the area but I dont think this is responsible for my no power or light issue, and should probably work just fine without it.

So after watching a few Louis Rossman videos and some post here with similar issues, Ive done a lot of testing and have found the following values of the main lines I think are important:

PPDCIN_G3H = 16.63V
PP18V5_DCIN_FUSE = 16.63V...

Hi all. I hope someone has come across something similar, as I am baffled.

I have a faulty logic board from a 2015 A1502 Macbook Pro Retina (820-4924-A). Some signs of liquid, but all corrosion cleaned, and several components refloated or replaced to eliminate any visually corroded areas of the board.

Machine boots fine now, but the keyboard and trackpad do not work at all when booting normally into Catalina, Big Sur, or Monterey. At the login screen, the cursor does not move at all when moving on the trackpad, and no keys on the keyboard respond on screen, however...

Apple MacBook Pro Retina 13' A1502 820-3536-A Schematic...

hi please help efi password

MacBook A1502
SN: C02MJEDRFGYY
EMC: 2678
​...

Apple MacBook Pro A1502 820-4924 Schematic & Board View...

Apple MacBook Pro A1502 820-3476-A Schematic & Board View...