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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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8 views

Photos app says no photos to import from SD card that it has recognised previously

I have an SD card with thousands of photos on it: It is now full and I want to import to my Mac Mini, running Mojave. I've used this SD card for this without issues but today I plug it in and Photos ...
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19 views

Best practice for mounting drive on logon

I have a MBP 2015, and use the SD card slot for a second drive; it's a slow micro SD card, but I only use it for backups, which suits my purpose. I've noticed that since upgrading to OS 10.13, the ...
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36 views

How can I access photos from my camera in Terminal?

I have been trying to compare the speed of importing photos to my Mac from either the camera or by removing the SD card and using a card reader. I have been using the method on question: "Is there a ...
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3answers
135 views

Why does Apple not recommend storing your iMovie library on an external drive?

I want to try keeping my iMovie library on an external drive because I use both my Imac (at home) and my MBP (when traveling) to edit my videos. Ideally, I would like to use a SD card so that it ...
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1answer
117 views

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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1answer
165 views

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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3answers
65 views

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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22 views

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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140 views

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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1answer
68 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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1answer
244 views

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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2answers
469 views

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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123 views

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
30 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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900 views

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
31 views

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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39 views

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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1answer
186 views

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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1answer
577 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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20 views

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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1answer
37 views

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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1answer
56 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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1answer
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
52 views

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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1answer
1k 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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1answer
91 views

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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304 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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500 views

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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1answer
4k views

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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2answers
3k views

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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0answers
2k views

SD card reader issues mid 2010 MacBook Pro

I’ve been having a few issues with the sd card reader on my mid 2010 MacBook Pro. A few weeks ago every sd card I inserted I could only read from, but not write to. I know the switch on the sd cards ...
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1answer
436 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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2answers
1k views

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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1answer
496 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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1answer
249 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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1answer
1k views

How to eject a unmounted disk?

I was using the dd command to burn a .img file to a micro SD card which was connected to my mac through a usb SD card adaptor. I need to unmount(not eject) the device first before I could use dd to ...
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2answers
1k views

Can I move Xcode and Android Studio to SD card

I'm planning to buy a 64GB SD card to supplement the storage on my MacBook Air 128GB (early 2015) I wanted to know if I can move my Xcode and android studio to it as both have them take a significant ...
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0answers
80 views

Bootable Sierra SD card that doesn't show up in Startup Disk but does mount in finder

I have a bootable Sierra SD card that doesn't show up in Startup Disk but it does mount in finder. I can boot other MacBooks with that SD card but on this one it will not work. I've also tied to burn ...
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0answers
94 views

MacBook Air no longer recognizes USB external HDDs, flash drives or SD cards

My MacBook Air (13-inch, Mid 2012) is no longer recognizing a USB external HDD, flash storege and even SD cards anymore. I did nothing different than usual before I confronted this big problem. My ...
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1answer
2k views

Speed of Card Readers Speeds of Macs

Is there a way to find the read/write speed of the SDXC card readers on Macs? I've been looking for it in System Information, or some chart on the web, to no avail. (I'm specifically looking for ...
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1answer
114 views

Trouble with encrypted SD card

I recently encrypted a SD card with disk utility to secure some of my most precious files, with a password. I then renamed the SD card, and then copied the files to it. The trouble is, that when I ...
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0answers
735 views

ExFAT formatted SD card not recognizing space

I'm trying to Homebrew my Nintendo Wii, and a 2 GB or under SD card is required. However, the Wii will also recognize 4 GB cards if enough junk is put on it. I'm attempting to do this with my Optima ...
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1answer
27 views

SD card left with barely any space after formatting it to ExFAT

I'm currently trying to jailbreak my Wii with an SD card and am using a MacBook Pro (El Capitan) to format the card to ExFat. The card is 32 gigs, but is reduced down to a mere 30 MBs after formatting ...
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0answers
468 views

Can't delete files in the Trash in a SD card. Files are both there and not there

I wanted to delete some files on an SD card but then emptying the trash would take too long so I just canceled it and went with terminal to wipe it manually with rm -rf But then there are some ...
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1answer
36 views

Send file using wifi to my MacBook while connected to wi-fi

just a quick question. I've got a MacBook Air and I'm a journalist, I need the SD Card slot. I've to switch to the new MacBook Pro and I will lose the SD Card, so I'm trying to solve the issue. I'm ...
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1answer
40 views

Stop automatically opening Photos.app when inserting formatted SD card

Whenever I put in my SD card, the Photos app opens automatically. I can set it to not open on a per-device basis, but since I format my SD card frequently that doesn't really help. How can I stop ...
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2answers
10k views

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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0answers
27 views

File save dialog is empty if selecting mounted SDCard

I'm trying to save a file download on my Macbook Pro. When i select a mounted SDCard a target, the file save dialog displays no file structure at all, although i can see it in finder. I currently ...
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1answer
2k 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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1answer
387 views

Macbook early 2009: does it has a maximum SD memory allowed

I have bought a couple of USB micro SD card readers. I have bought a couple of micro SD memories. None of them work well. The shop has told me that computers have a maximum memory allowed. I have not ...