iPhone 15 suddenly not reading external SSD.

I have an iPhone 15 Base Model and a 1TB M.2 NVMe PCIe (Gen 3*4 3D NAND) External SSD.

It sometimes get read and other times it doesn't. I don't understand whats wrong.

I'm connecting it with C to C Type. It showed up sometimes but now stopped.

Also, I've formatted the SSD multiple times to ExFat. As I use Win11 Laptop, I want to use it for both.

Would love to know what I can do.

Thank You.




Posted on Jan 2, 2025 2:14 AM

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Posted on Jan 3, 2025 8:20 AM

Have you tried different cables? It could be a power delivery issue and cheap cables deteriorate over time and can’t deliver the enough amps to power the device.

7 replies

Jan 3, 2025 8:16 AM in response to BradPitFromEbay

An external storage device must have only a single data partition, and it must be formatted as APFS, APFS (encrypted), macOS Extended (HFS+), exFAT (FAT64), FAT32, or FAT. To change the formatting of a storage device, use a Mac or PC.


Connect a USB drive or an SD card reader. Attach the USB drive or SD card reader to the charging port on your iPhone using a compatible connector or adapter.


Connect external storage devices to iPhone


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iPhone 15 suddenly not reading external SSD.

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