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Apple MacBook Pro 14-inch and 16-inch troubleshooting

Apple MacBook Pro 14-inch and 16-inch (2023 M3 and 2024 M4 families in 14-inch and 16-inch sizes): display flicker after macOS 26.1; how to tell software from hardware, and a fix for each symptom below.

Display flicker after macOS 26.1
M4 MacBook Pro owners reported the built-in screen flickering intermittently after macOS 26.1, visible to the eye but absent from screenshots, which points at the display driver or ProMotion timing. Apple Community replies suggest installing the newest macOS point release first.

Won't startBattery drainNot chargingWi-FiBluetoothSlow

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Apple · battery drain

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) battery drains too quickly

Open record Apple · Bluetooth

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) Bluetooth is missing, will not pair or disconnects

Open record Apple · camera

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) camera or microphone is not working in calls

Open record Apple · no sound

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) has no sound or distorted audio

Open record Apple · slow

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) is running very slowly

Open record Apple · keyboard

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) keyboard or trackpad is not working correctly

Open record Apple · update failed

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) operating-system update will not install

Open record Apple · overheating

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) runs hot or the fan is loud

Open record Apple · black screen

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) screen is black, blank or flickering

Open record Apple · storage full

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) storage is full or nearly full

Open record Apple · USB not recognized

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) USB or Thunderbolt device is not recognized

Open record Apple · not charging

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) will not charge

Open record Apple · Wi-Fi

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) will not connect to Wi-Fi or keeps disconnecting

Open record Apple · won't start

Apple MacBook Pro 14-inch and 16-inch (M3 and M4) will not turn on or start

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Which units this covers, and how to tell yours is one of them

Model numbers and patterns: 2023 M3 and 2024 M4 families in 14-inch and 16-inch sizes

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What is true of this model and changes how you fix it

How to tell software from hardware
Resetting the NVRAM or SMC-style state and turning off automatic graphics switching help when it is software. Flicker that changes as you move the lid is the hardware cable problem often called Flexgate and needs Apple service.

Manufacturer support for this product line. Apple Support — Apple product support. Official Apple model, operating-system, repair, connection and settings guidance.

Also read for this model. Apple Community — MacBook Pro (M4) display flickering after update; Asurion — MacBook Pro screen flickering? Here's how to fix it.

Exact questions

Questions that only have an answer for the Apple MacBook Pro 14-inch and 16-inch (M3 and M4)

Why does my MacBook Pro M4 screen flicker but not in screenshots?+

Owners reported exactly that after macOS 26.1, which suggests a display driver or refresh-rate timing fault rather than the panel. Update macOS; if it flickers as you move the lid, book a hardware check.