Help formatting SD cards

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FlashyFrank
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Help formatting SD cards

Post by FlashyFrank » Thu Jun 14, 2018 5:02 pm

Hi, I have a bunch of micro SD cards that I have used in the past on raspberry pi builds and lots of them are not usable for different reasons. Anytime I try to reformat it tells me it is security enabled or locked or encrypted. I have tried using windows PCs, Macs, Digital Cameras, Programs...ect.

Does anyone have a tried and proven method to reformat sd cards that dont want to be written over?

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ABH
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Re: Help formatting SD cards

Post by ABH » Thu Jun 14, 2018 5:59 pm

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Re: Help formatting SD cards

Post by FlashyFrank » Fri Jun 15, 2018 12:20 am

This is not the issue.

sygyzy
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Re: Help formatting SD cards

Post by sygyzy » Fri Jun 15, 2018 10:33 am

I have never heard of SD cards that can't be formatted. You have physical access to the cards and formatting is a destructive procedure. Have you tried something like Disk Utility in Mac OS or fat32formatter (not exact name, google it) on Windows?

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Re: Help formatting SD cards

Post by FlashyFrank » Fri Jun 15, 2018 4:46 pm

Some of the micro sd cards I have that wont format were previously used in smartphones and may have some sort of security lock but others were used on raspberry pie's and they also will not let me format.

I have tried using 'SD Card Formatter', Mac Disc Utility, Fat32Format, Formatting in a DSL Camera.

I have like 6 unusable micro SD cards and it makes me so sad. :(

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Re: Help formatting SD cards

Post by rodocop » Fri Jun 15, 2018 8:54 pm

Only time I have seen that was when the card was corrupt.

Seems odd to have 6 corrupt cards all at once though.
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Re: Help formatting SD cards

Post by FlashyFrank » Sat Jun 16, 2018 12:26 am

I have collected them over the years. A few from old smartphones and a couple from past projects. I was able to format one of the cards that I thought was corrupted after several attempts.

Basically once its corrupted there is no fixing it?

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Re: Help formatting SD cards

Post by GunZi » Sat Jun 16, 2018 7:06 am

What is the size of the cards? Are they over 32GB? What is the exact error message you're getting? I've used Etcher on Mac and that works for me, formats and installs Retropie all in one step. https://etcher.io


Do these links help?:
"how to format a write protected sd card" : https://www.easeus.com/partition-master ... -card.html
"format corrupted unreadable sd card" : https://www.easeus.com/partition-master ... -card.html

You can probably find some free software that checks if your sd cards are bad.

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Re: Help formatting SD cards

Post by FlashyFrank » Sat Jun 16, 2018 4:13 pm

"Cannot format write protected card" is the error Im getting in SD Card Formatter on this 16GB card.

On my 32GB card it wont read in my micro SD reader but will give me a, "Cannot format write protected card" when I put it in the SD card adapter and read it that way.

On another 32GB card it acts like it will format and then once the process is finished it will come back with a "failure to format"

Now it looks like one of my 16GB cards might be formatting.


I'll look into those other links in a bit. Trying to finish up my second build right now!

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