Write protection

Hello,

i want to ask for help to a problem i have
i have korean headunit wince 6
when i paste any file or edit any thing on disk
the device give me error:
the disk have write protection

how can i remove write protection ?
or how can i transfer files ?

may you help me please

Are you trying to write into the PSA, storage card or part of the \ root folder structure?

Details on the hardware might help matters here.

I have a write protection problem before this.Have been troubled with the situation until I finally found a solution to it.
My experience was that: I took out a microSD card from an android phone, slot it into an SD adapter to be read in my laptop in-built card reader (laptop was a HP G4 pavilion), and it wouldn't allow any files to be copied onto the microsd.
Have been copying files this way many times already, which really baffled me.
Then I realised I was running an Explorer app accessing the microsd when I just pressed the back button and unlatched the back cover to take out the card, without first switching off or unmount in the microsd card.
Went back to the phone, exited the app, switched of phone in the proper sequence before taking out the microsd card again.
You guessed it!
Voila, no more write protected issues.
Have been adhering to proper removal and ejection of CDS, DVDs, thumb drives, ram cards ever since, WITH NO WRITE PROTECTION ISSUES AGAIN.
I wonder if this is the case for you.

thanks for reply

i want to add more details about my problem

1- Disk not full
2- file not in use because i used file am sure not in use.
3- i tried cut file from disk to another disk after reboot device all things return back to the original status nothing change.

so it's write protection situation as i think











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This may be the same problem I encountered with the Sharp Brain:

https://www.hpcfactor.com/forums/forums/thread-view.asp?tid=17996&st...

- though the error messages were in Japanese, so I could not read them. The memory modules may be hard-coded as read-only, but that's just a guess. Is there a memory card slot (SD, TF, and/or CF)? Maybe using the utilities in the above-linked thread could help, though I would think you could just run programs from the card.