formatting | /r/3DS | Page 1

obtuse pier Aug 11, 2025, 12:45 AM

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hello, i’ve been trying to format my 128gb samsung micro sd card since yesterday to fat 32 and it hasn’t been working even though i’m following the guide. i tried reformatting it yesterday using my macbook air’s built in sd card reader and it hasn’t worked. external wasn’t showing up there so i got a sd card adapter and external showed up this time, but it’s still not working when i tried reformatting. it shows this error and says my card isn’t readable anymore until i change it back to mac os extended. my sd card is new and there’s absolutely no data in it. any help would be appreciated!

obtuse pier Aug 11, 2025, 1:09 AM

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i tried formatting another sd card to see if the problem was the sd card and that didn’t work either and it became unreadable and wouldn’t even go back to the previous format

stiff ridge Aug 11, 2025, 1:10 AM

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post a photo ofthe card, please

obtuse pier Aug 11, 2025, 1:13 AM

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this is the samsung one i tried and only is readable when i reformat back to mac os extended and what i want to use for modding

queen crescent Aug 11, 2025, 1:15 AM

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Have u tried just turning the pc off and on

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Maybe its bc of that

obtuse pier Aug 11, 2025, 1:16 AM

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i restarted my laptop and that never did anything

queen crescent Aug 11, 2025, 1:17 AM

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Can u check if the sd card still good maybe its bc of that

obtuse pier Aug 11, 2025, 1:17 AM

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it’s freshly new, how can i check if it’s good?

queen crescent Aug 11, 2025, 1:17 AM

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What os do u rock

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What i mean by that is what operating system do u use

obtuse pier Aug 11, 2025, 1:19 AM

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im using my macbook air and its version 10.12.6

queen crescent Aug 11, 2025, 1:19 AM

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Oh

obtuse pier Aug 11, 2025, 1:19 AM

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if that answers your question correctly

queen crescent Aug 11, 2025, 1:19 AM

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I dont know about mac

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Do u have another machine with windows

obtuse pier Aug 11, 2025, 1:20 AM

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no my house just uses mac

queen crescent Aug 11, 2025, 1:20 AM

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Wait

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Do u have ur 3ds by ur side

obtuse pier Aug 11, 2025, 1:21 AM

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yes

queen crescent Aug 11, 2025, 1:21 AM

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Try plugging it in with the adapter if it says its reading its good if not its bad

obtuse pier Aug 11, 2025, 1:22 AM

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i thought the ds can’t read the sd card if it’s over 32 gb if it’s not properly formatted

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and my sd card is 128 so even if it’s good wouldn’t it still not read?

queen crescent Aug 11, 2025, 1:23 AM

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So wait did u already format the sd card to fat 32 and then the problem started or did it start as u were formatting it

obtuse pier Aug 11, 2025, 1:24 AM

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the problem occurs as i’m formatting it. i follow the steps on the guide, then once i click erase that error pops up

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then it says my sd card isn’t readable until i format it back to mac os extended

queen crescent Aug 11, 2025, 1:25 AM

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Have u tried any other sd card in ur mac

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Maybe the sd card reader is just broken

obtuse pier Aug 11, 2025, 1:26 AM

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i tried another sd card and the erase process failed for that too and i can’t even format it back either

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the built in sd card reader wasn’t showing external files so i got a usb to sd adapter it showed external now but erase process is still failing so now we’re here

queen crescent Aug 11, 2025, 1:28 AM

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Maybe try disk utility

obtuse pier Aug 11, 2025, 1:28 AM

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that’s what i’ve been using

queen crescent Aug 11, 2025, 1:28 AM

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Maybe use the terminal

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Open Terminal (Applications > Utilities).
Type diskutil list and press Enter to identify the SD card's identifier (e.g., disk2).
Type diskutil unmountDisk /dev/diskX (replace X with the identifier) and press Enter.
Type sudo diskutil eraseDisk FAT32 SDCARD MBRFormat /dev/diskX (replace X with the identifier) and press Enter.

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Wait i will send a screen shot its better for understandinf

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obtuse pier Aug 11, 2025, 1:30 AM

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alright thank you give me a second to try that

queen crescent Aug 11, 2025, 1:30 AM

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Yo

obtuse pier Aug 11, 2025, 1:33 AM

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sorry quick question for the identifier it shows me 3 do i type in the one from (internal, physical)
(internal, virtual)
or
(external, physical)

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and there’s 0 and 1 from each list

queen crescent Aug 11, 2025, 1:33 AM

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External physical

obtuse pier Aug 11, 2025, 1:34 AM

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do i put disk2 or disk2s1?

queen crescent Aug 11, 2025, 1:34 AM

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Diak 2s1

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So did it work?

obtuse pier Aug 11, 2025, 1:37 AM

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it said “Unknown partition scheme: CARD”

queen crescent Aug 11, 2025, 1:38 AM

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Well

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Then i dont know anymore

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Maybe ur mac isnt happy with the external usb

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Or maybe u dont have the correct driver

obtuse pier Aug 11, 2025, 1:40 AM

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do i type in anything now to fix it or reverse it now? and what should i do from here then

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like what should i try

queen crescent Aug 11, 2025, 1:40 AM

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Can u send a photo of ur screen

obtuse pier Aug 11, 2025, 1:40 AM

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hold on terminal puts my full name so let me color that out

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queen crescent Aug 11, 2025, 1:43 AM

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If im honest i dont own a mac or any apple product can u just close it

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If not just restart ur mac

obtuse pier Aug 11, 2025, 1:44 AM

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i closed it

queen crescent Aug 11, 2025, 1:45 AM

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Ok im sorry i cant help but i tried my best

obtuse pier Aug 11, 2025, 1:45 AM

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i still appreciate your help and effort even if we couldn’t figure out the problem thank you so much

hollow gazelle Aug 11, 2025, 4:06 AM

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Make sure the sd card is not write protected

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And send a picture of the sd card adapter you used

#formatting