MicroSD READ-ONLY behaviour in Android

[einstein9]

Hello guys,,,

I was wondering if someone knows about this issue or had similar cases like this...

MicroSD memory added to Android Mobile (Android 6+ & higher) and you use it for a while (Enabled Encryption or not its the same)
when you pull it out and connect to windows you are able to READ its data but you CANNOT FORMAT/MODIFY it

no matter what you do, it says Format done, but nothing changes... DATA remains the same (either Encrypted or not)

anyone got similar to this scenario?


Note: I came up with a result about this matter and wanted to verify with those who had similar cases...
you may PM if don`t want to go public about it...


thank you

[HaQue]

Is it a Kingston branded memory? or does this happen with different flash cards?

[einstein9]

Is it a Kingston branded memory? or does this happen with different flash cards?

Any brand,,,

I have more than 10 now for research, Sandisk, Kingston and some other unbranded too

[HaQue]

is it the read only attribute on the actual partition? or were they exFAT and not really FAT32?

this page https://forum.fairphone.com/t/sd-card-suddenly-switches-to-read-only-file-system/37570/6 is saying:

I figured out that instead of rebooting one can unmount the SD card (Settings -> Storage -> Chose SD Card -> Eject -> Confirm) and then mount the card again, without removing it from the device.

with a reply

Thanks for the hint. Unmounting and re-mounting the SD card does indeed work. And is faster than a reboot.

more info

https://forum.fairphone.com/t/list-of-compatible-microsd-sdxc-cards-for-fp2/33672

[einstein9]

@ HaQue

PM Sent.

[suricate.ch]

I have a FairPhone 2, stuck on Android logo after OS upgrade failure. I tried "wiping cache", doesn't help. Anyone knows a tool that can extract data ?

[Arch Stanton]

Could TMP_WRITE_PROTECT bit be set?