Left Thunderbolt ports recognized but don't register connected devices

Question 1

1 crwdns2930801:0crwdne2930801:0

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

tiawara ta 15 agoNhl 24, 2025

commented tiawara ta 15 agoNhl 24, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 2

1 crwdns2930801:0crwdne2930801:0

URGENT] MacBook Water Damage – Need Expert Advice ASAP

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

Alisha C 41crwdns2936485:0crwdne2936485:0

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Nhl 9, 2025

answered Nhl 9, 2025 crwdns2933505:0crwdne2933505:0 Alisha C

Question 3

1 crwdns2930801:0crwdne2930801:0

Display blank after repair; recognized in recovery assistant

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

Ryan Shelton

crwdns2931741:0crwdne2931741:0

Nhl 9, 2025

commented Nhl 9, 2025 crwdns2933505:0crwdne2933505:0 Ryan Shelton

Question 4

1 crwdns2930801:0crwdne2930801:0

Power management chip getting overheated need solution

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Ndz 24, 2025

commented Ndz 24, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 5

2 crwdns2873741:0crwdne2873741:0

Display replacement - without pairing with the board

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2021 crwdns2933315:02crwdne2933315:0

Nash20b 2.1crwdns2936485:0crwdne2936485:0

crwdns2942989:0crwdne2942989:0

Mha 5, 2025

answer accepted Mha 5, 2025 crwdns2933505:0crwdne2933505:0 Nash20b

Question 6

1 crwdns2930801:0crwdne2930801:0

MBP M1 2021: Strange Issue with Media Playback: No Sound/Stuck Video/

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

tomadobi

crwdns2931741:0crwdne2931741:0

Maw 16, 2025

commented Maw 16, 2025 crwdns2933505:0crwdne2933505:0 tomadobi

Question 7

5 crwdns2873741:0crwdne2873741:0

Which MacBook screen repairs require Apple System Configuration tool?

MacBook Pro 16" 2021 crwdns2933315:05crwdne2933315:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Maw 12, 2025

commented Maw 12, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 8

4 crwdns2873741:0crwdne2873741:0

Shaking MacBook sideways I can hear/feel something loose/wobbly.

MacBook Pro 16" 2021 crwdns2933315:04crwdne2933315:0

Rafik Mirzayan

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Kho 18, 2025

commented Kho 18, 2025 crwdns2933505:0crwdne2933505:0 Rafik Mirzayan

Question 9

1 crwdns2930801:0crwdne2930801:0

Help identify the part name

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

oldturkey03 831crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Kho 13, 2025

commented Kho 13, 2025 crwdns2933505:0crwdne2933505:0 oldturkey03

Question 10

1 crwdns2930801:0crwdne2930801:0

Body of MacBook is Creaky

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

livfe 5.6crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Mud 20, 2025

answer edited Mud 20, 2025 crwdns2933505:0crwdne2933505:0 livfe

Question 11

1 crwdns2930801:0crwdne2930801:0

MacBook Pro - RAM usage while idle

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2931737:0crwdne2931737:0

Yan 25, 2025

answer edited Yan 25, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 12

1 crwdns2930801:0crwdne2930801:0

What does this mean? It's lazered

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

Mhm

crwdns2931741:0crwdne2931741:0

Yan 25, 2025

commented Yan 25, 2025 crwdns2933505:0crwdne2933505:0 Mhm

Question 13

2 crwdns2873741:0crwdne2873741:0

Fans running full/battery service showing after battery replacement

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2021 crwdns2933315:02crwdne2933315:0

Mike Gendimenico

crwdns2931737:0crwdne2931737:0

Yan 17, 2025

answer edited Yan 17, 2025 crwdns2933505:0crwdne2933505:0 Mike Gendimenico

Question 14

1 crwdns2930801:0crwdne2930801:0

2021 MacBook Pro M1 screen flikers then becomes dark.

MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Yan 1, 2025

answered Yan 1, 2025 crwdns2933505:0crwdne2933505:0 DanJ

Question 15

0 crwdns2873741:0crwdne2873741:0

Best walkthrough video to replace the top cover?

crwdns2934197:0crwdne2934197:0 MacBook Pro 16" 2021 crwdns2933315:00crwdne2933315:0

livfe 5.6crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Huk 14, 2024

commented Huk 14, 2024 crwdns2933505:0crwdne2933505:0 livfe

Question 16

2 crwdns2873741:0crwdne2873741:0

French to English keyboard swap possible?

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2021 crwdns2933315:02crwdne2933315:0

Jason Eisenberg

crwdns2931741:0crwdne2931741:0

Huk 5, 2024

commented Huk 5, 2024 crwdns2933505:0crwdne2933505:0 Jason Eisenberg

Question 17

1 crwdns2930801:0crwdne2930801:0

Display Issues on MacBook Pro M1 Pro 16-Inch After Screen Replacement

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2021 crwdns2933313:01crwdne2933313:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2931741:0crwdne2931741:0

Nhl 27, 2024

commented Nhl 27, 2024 crwdns2933505:0crwdne2933505:0 DanJ

Question 18

2 crwdns2873741:0crwdne2873741:0

Display turning off itself

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2021 crwdns2933315:02crwdne2933315:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2942989:0crwdne2942989:0

Nhl 22, 2024

answer accepted Nhl 22, 2024 crwdns2933505:0crwdne2933505:0 DanJ

Question 19

3 crwdns2873741:0crwdne2873741:0

Blackscreen on MacBook Pro M1 Max 16‘‘ but external display works

crwdns2934195:0crwdne2934195:0 MacBook Pro 16" 2021 crwdns2933315:03crwdne2933315:0

Chandrakant Goudar

crwdns2931741:0crwdne2931741:0

Nhl 19, 2024

commented Nhl 19, 2024 crwdns2933505:0crwdne2933505:0 Chandrakant Goudar

Question 20

2 crwdns2873741:0crwdne2873741:0

Battery failed after water damage

MacBook Pro 16" 2021 crwdns2933315:02crwdne2933315:0

DanJ 494.3crwdns2936485:0crwdne2936485:0

crwdns2931217:0crwdne2931217:0

Nhl 3, 2024

answered Nhl 3, 2024 crwdns2933505:0crwdne2933505:0 DanJ

crwdns2944620:0MacBook Pro 16" 2021crwdne2944620:0

MacBook Pro 16" 2021 crwdns2934277:0crwdne2934277:0