Questions tagged [sd-card]

An SD Card (Secure Digital Card) is an ultra small flash memory card designed to provide high-capacity memory in a small size.

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Why is encrypted APFS on SD cards so slow?

When writing any data to SD cards, the operation is usually very slow compared to other kinds of media (up to tens ob MBytes/s). However, when using an encrypted file system on the SD card, such as ...
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2017 iMac won't read SDXC Card

I did not find any solution for my problem, so I'm asking this here: My 2017 iMac won't read a 128 GByte SDXC Card (used to store photos in my Canon 5D Mk IV). It mounts and (most of the time) the ...
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How to copy files to an SD Card without macOS metadata files?

I regularly copy firmware for a 3D printer to SD cards. I format the drive and copy the same set of files to each SD card, and the macOS metadata specific files always go with it (.fseventsd,....
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Why is my external disk being backed up again by Time Machine?

My 200 GB music library resides on a SD card that is permanently inserted into my MacBook Pro. The volume is encrypted using Filevault. Time Machine will include that volume when doing backups onto an ...
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How to check if any file on Volume Y is missing on Volume Z?

I have multiple external HDD's, many USB thumb drives, a boat load of SD cards and so on. I've not diligently kept everything centrally stored. This goes back years. I now want to clean up this mess ...
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Micro SD Card dead after formatting

I was trying to format a brand new Micro SD Card using https://www.sdcard.org/downloads/formatter/, however, after 30 minutes, it failed. Every attempt thereafter also failed with this message; [...
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47 views

Changes to SD card do not persist after unmounting

I have a couple of 128GB Samsung EVO+ micro SD cards. I have two different means of connecting these to my mid-2012 MacBook Pro running MacOS 10.13 High Sierra: a micro-to-fullsize SD adaptor, which ...
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Cannot erase SD card with Disk Utility (El Capitan)

I have this SD card that I am trying to use to backup photos on a Windows computer. After using the SD card on the Windows computer, and copying the photos back on a safe drive, I cannot erase the SD ...
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SD Card not readable after upgrading to El Capitan

I'm not able to use my SD card on my MacBook Pro after I upgraded the OS to El Capitan. I tried to reset PRAM without success. Consider that if I put the SD card on another Mac it works perfectly. Any ...
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Photos.app no longer detecting SD cards for import

Lately, when I try connecting any of my cameras' SD cards, either through a USB-based SD reader or by connecting the camera itself, Photos.app does not automatically launch when the card mounts, and ...
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1answer
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Cannot Erase a 64Gb exFat SD Card with Disk Utility | OS Mojave

I've got a microSD card in an SD adaptor that I accidentally left in during the Bootcamp installation and now it is formatted as exFat rather than Fat-32. I tried erasing it and changing the format, ...
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SD card slot is always read-only

I have a 4 GB Micro SDHC card and I use a Micro SD adapter sleeve to read it with the built-in SD card slot of my 15" mid-2010 MacBook Pro. It's been a while since I tried to use it, but I just ...
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f3 Fight Flash Fraud: “f3probe command not found” Mac OS Mojave

I'm testing SD Flash Cards and my linux machine decided to be rude and stop operating the SD Card Reader (time for a USB device). So I switched over to the reliable old iMac to happily find that F3 ...
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Is my SD card beyond repair?

I've looked on other questions and from those answers I have tried SDFormatter and it produced this error: [ERROR] Invalid end of sector signature: 0x4536 [ERROR] exfat_check_validate_boot_sector ...
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1answer
25 views

Slightly broken SD card is not readable on macbook

I put the SD card (sandisk ultra 32gb) in the card slot in macbook pro. But it is not getting detected. When I tried to find on Disk utility it doesnt show up. I have very important data in the SD ...
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MacBook: SD Card Reader Not Visible

I know this question has been asked before but none of the answers worked for me. I have tried three different brand new SD cards, 2 San Disk's and one Samsung's, using both MacBook's built-in SD ...
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2answers
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osx 10.11.6: SDcard reader

SDcard from Raspberry pi 0 has several text files (and python scripts) which do not show up when mounting on internal mac SD reader. How can I recover those files?
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How to repair damaged SD card on macOS?

I inserted a 32GB micro-sd card into an HP F320 (car camera) and the card is damaged because F320 only supports capacities up to 16GB. This card cannot be read on F320 and cannot be successfully ...
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378 views

How to expand SD Card disk size (clone smaller SD Card into Larger one)

I am trying to clone the content of my 16GB SD card onto a 64GB SD Card. What I tried first was to just copy all the files from the 16 to the 64 manually. This did not work out, the tool using the ...
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553 views

SD card corrupt after hot removal

Accidentally removing a card reader without first ejecting the Sandisk 256GB MicroSD in it has caused the SD card to become corrupt. When inserting it now, OSX prompts that it cannot read the card and ...
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How to remove partition on SD card using a Mac?

I got Raspbian on a SD card, and then accidentally wiped it. Now I have 2 visible partition. How do I get rid of the partition on a Mac.
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46 views

Format Linux partition USB SD

I have a Transcend SD Card 256GB I was installing CentOS in one partition of my SD Card, testing the OS in my MacBook Air. Now I can't remove the partition and restore my SD. sh-3.2# diskutil list /...
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449 views

removing write up protection from micro sd card

My micro sd card suddenly got locked and i don't know how to remove the write up protection using my macbook air nor the disk utility. How do I remove the digital write up protection from my card ...
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Unable to format SD card

I was using my SD card on my phone. One fine day it showed a message that it was corrupted. I put the card in an adapter and plugged it into my iMac. I was able to read and copied all I need. I ...
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707 views

Disk Utility not formatting memory card

Have a Sandisk Ultra Micro SD card inserted into my MacBook pro using a Sandisk adapter. The card was originally in my Samsung Galaxy S7 however the phone stopped acknowledging it. The card is ...
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Why is Convert to APFS Failing?

I have an SD card formatted as Mac OS Extended that was imaged with the Apple Diagnostics disk image. Holding option to boot to this SD card on a Mac works as expected. I tried to use Disk Utility to ...
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Can't reformat SD card (Yosemite)

I have a 2 GB SD card that I can't reformat. It seems pretty corrupted. If I go into Disk Utility, I get these various error messages for each option: Repair Disk: Disk Utility can’t repair this ...
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How can I mount a removable device as un-ejectable [duplicate]

I have a Micro-SD card which I keep permanently inserted in my MacBook Pro using a nifty Mini-drive. I doubt it should matter, but this is a 13" early 2011 MacBookPro, running High Sierra (hardware ...
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1k views

Since update to Mojave SD card disappears after sleep

Since an update to Mojave, the SD card which I use permanently in my MBP always gets unmounted after longer sleep and importantly, it does only remount after restart. I know this question has been ...
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1answer
420 views

high sierra on MBP2010 microphone and card reader not working anymore

I have recently upgraded my MBP mid2010 to HighSierra and I am struggling to get the card reader and microphone to work. I can see them in the system report but the mic isn't working and the card ...
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4answers
15k views

iPhoto not recognizing memory card, but mounts in Finder

I am running Lion with most recent version of iPhoto. I can access the memory card in Finder without problem, but when I launch iPhoto the card does not show up to import photos it contains. I have ...
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How to mount any SD cards in a specific SD reader (or specific USB port) to a specific mountpoint in macOS?

I know that I can map specific SD cards to specific mountpoints in macOS (see How to mount certain SD cards to a specific mountpoint in El Capitan?). However, is it possibile to map a specific SD ...
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225 views

SD Card missing after sleeping during write?

I have a flush-mounted 128GB SD card for my Macbook Pro. Had it for a year, never any problems or issues. Today, while trying to free up some space on my main drive, I was moving a large directory -- ...
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Can't format samsung 128 evo micro sd card

I'm having issues formatting a micro sd card a for a friend on my Mac. I've tried using Disk Utility, diskutil commands in terminal and SD Card Formatter. This is what I get when I try on terminal: ...
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How can I automaticaly download images from a SD/CF card on a Macbook Pro?

Yesterday I bought the new 2018 15" MacBook Pro (until then I was a Windows user for more than 20+ years) and installed all the software from Canon's EOS Solution Disk (downloaded from Canon's webpage)...
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162 views

Prevent OS X 10.11 to display “can't read disk” message

I always have connected to my MBPr a Transcend JetDrive Lite 330. JetDrive Web I have installed Ubuntu on that SD Card, so it has EXT4 file system. I installed some packages on the Mac for being ...
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Macbook disk space show as used photos library space that is stored in an external SD

I have moved my photo library into an external SD card and now that library is configured as the system photo library. The problem is that my Macbook shows that the hard drive is still using an ...
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1k views

Macbook Pro SD card reader is not listed as USB hardware

I have 15" early 2011 MacBook Pro with OS X Mavericks installed. Everything works fine, except the SD card reader. Even it's not listed in USB hardware list. The SD card slot is dust-free and pins ...
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My SD card doesn't fit into my MacBook Air, but it fits into my MacBook Pro!

My camera's SD Card can't fit into my MacBook Air's SD Card Slot. I can only push the SD Card into the slot halfway, but then ONE CORNER can't go in any further. The left corner of the card can still ...
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How do I rename a FAT SD Card using a MacBook Air?

I'm trying to rename a 16GB SD card (Untitled) using a MacBook Air but the Disk Utility won't let me rename/erase/reformat it. I am able to open the device and see all of its content but cannot rename ...
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2k views

MacBook Pro Late-2013 SD card reader not loading cards after 10.10.2 update

In my Macbook Pro 15inch, late 2013, the SD card reader doesn't work after installing Yosemite 10.10.2. Doesn't load cards at all. Tried to blow out slot, fiddling with switches inside port, nothing. ...
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262 views

Formatting SD card with 4096 bytes Allocation Size Unit

I need to format an SD card to 4096 bytes Allocation Size Unit, but I'm not sure how. I know I need to type in a specific command into the terminal. Could anyone help me out by telling me what code I ...
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549 views

Import wav files to iPhone using SD card reader

I have the below SD card reader that imports photos and videos to iOS photos app. Is it possible to import .wav files onto my iPhone using the Apple lightning port SD card reader?
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Solution for moving WAV raw audio files from SD cards directly to IOS devices?

I have WAV (raw audio) files on an SD card, recorded with a Zoom H4N digital recorder. In the field, I need a way to get the WAV files off of the card. Here's what doesn't work: Apple's card reader ...
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371k views

My SD card is not showing up in Finder

I have a SD card that I put into my MacBook Pro. It then showed up in finder. I wanted to access it and I accidentally dragged the mounted card and now it's gone from Finder. Taking out the card and ...
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Unable to partition a SDXC card using Disk Utility

I have placed 200GB SanDisk card inside Nifty adapter and put it into SDXC slot in my Mac. I want to use it as permanent & encrypted storage. Unfortunately encryption requires GUID partition ...
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Error -36 “some data can't be read or written” when copying files from SD card

I want to copy files from my SD card to my Desktop but for some of the files I get: The Finder can’t complete the operation because some data in “GOPR0054.MP4” can’t be read or written. (Error code ...
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1k views

Which file system for an SD card permanently mounted on my Mac?

To extend my limited Macbook Pro storage I keep a 128 GB micro SD always mounted in the SD card reader (thanks to Nifty Minidrive). I use it for static files: music, photo and video files I need to ...
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859 views

How should I format a Micro SD card for Dropbox storage?

I have been using a 128GB SanDisk Ultra Fit USB 3 device with my MacBook for a while now and have really grown to love having all of my Dropbox available without using up my SSD disk space. I've ...
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Problem with kextunload SD card remount

So I got one of those SD card flush mounts, but it occasionally self ejects. I'm trying to solve that via kextunload given on this page Entering: sudo kextunload -b /System/Library/Extensions/...