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  • 2 Post By 9671111
  1. Thread Author  Thread Author    #1  

    Default [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can't write to the sd card

    INTRO

    This info may help you if the following is true:
    - up until now youve had no issues when using your sd card
    - all of a sudden you can no longer write to the card, perhaps along with an error message being reported that indicates the sd card is mounted read-only

    This is another one of those situations where it is not necessary to take extreme measures such as doing a complete reformat, or outright replacing the cardas suggested in the many threads on this subject.

    Here are the facts. Your sd cards file allocation table (FAT) has some kind of error. Its an android-thing that crops up once in a while. Because of this FAT error, the card automatically gets mounted read-only, and no matter how many times you go into settings and try to unmount/remount the card, it is to no avail.

    SOLUTION

    Fix the FAT
    - connect device to your PC (USB connection) and make sure its set so that you can copy files to/from your computer (on my device in the notification panel theres an option to do this under USB connected)
    - on your pc, open windows explorer (or click on start->computer), then right click on the mapped drive to your sd card you may have to wait a minute or two for the mapping to take effect
    - select Properties
    - select Tools
    - select Check now (for error checking) to automatically fix file system errors (no need to deal with bad sectors at this time)
    - when completed (takes a minute or so), the FAT will be in working order once again. No files are deleted during the process, so no need to worry about that.
    - safely disconnect the device from your pc, at which point the sd card will now be mounted read-write and youre good to go
    Thanked by 3:
    aredubmanbat2ymf 
    manbat2 and ymf like this.
  2. #2  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Hello sir ,
    I tried to fix the problem following all steps but it didn't work cause it couldn't open support center ..don't know the problem is in my pc or in my device .
    please reply
  3. #3  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Omg thank you sooooo much i rlly appreciate this i had this prob for a while u fixed it thanks you!!!!!!!!!!!!!!!!!

    - - - Updated - - -

    what? your doing somthing wrong, what support center? you don't have to open any support center?
  4. #4  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    My SD card is on a camera. I tried your technique, in addition to reformatting the card via computer, file sharing with "everyone", and none of these techniques work. I click off the grayed out protection and it comes back. File sharing with "everyone" appears to stick but does not. Interestingly enough, even though the card is a grayed out "read-only", I can still manipulate the disk directories and files on the computer. The sharing info shows the computer name.
  5. #5  
    Rukbat's Avatar

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    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    If you have the FAT problem more than once, it could be an indication that the card is going bad. (The FAT is one of the most written-to areas on the card.) At that point, make sure that you have every single file that you may ever want backed up onto your computer. Then when the FAT finally goes bad (and if it's a good manufacturer, they may even replace the card for free), you won't lose your data.

    Remember, even though SD cards have a huge number of write cycles, it IS a finite number, and every SD card will eventually go bad. You can replace the card, but you can never replace the picture of your granddaughter's first step. Data you don't have backed up to at least 2 independent places is data that you really don't need.
  6. #6  

    Thumbs up Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Thanks a ton...I was scratching my head of because of this problem. I have rooted my android phone n had recovered apps through Titanium backup. But recently I couldnt download watsapp files to my phone and neither could install any apps on my phone. I was getting the error Could not install on sdcard or usb. That problem is solved now by following the sdcard permission problem. All my probs are solved for the moment.
  7. #7  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Quote Originally Posted by 9671111 View Post
    INTRO

    This info may help you if the following is true:
    - up until now youve had no issues when using your sd card
    - all of a sudden you can no longer write to the card, perhaps along with an error message being reported that indicates the sd card is mounted read-only

    This is another one of those situations where it is not necessary to take extreme measures such as doing a complete reformat, or outright replacing the cardas suggested in the many threads on this subject.

    Here are the facts. Your sd cards file allocation table (FAT) has some kind of error. Its an android-thing that crops up once in a while. Because of this FAT error, the card automatically gets mounted read-only, and no matter how many times you go into settings and try to unmount/remount the card, it is to no avail.

    SOLUTION

    Fix the FAT
    - connect device to your PC (USB connection) and make sure its set so that you can copy files to/from your computer (on my device in the notification panel theres an option to do this under USB connected)
    - on your pc, open windows explorer (or click on start->computer), then right click on the mapped drive to your sd card you may have to wait a minute or two for the mapping to take effect
    - select Properties
    - select Tools
    - select Check now (for error checking) to automatically fix file system errors (no need to deal with bad sectors at this time)
    - when completed (takes a minute or so), the FAT will be in working order once again. No files are deleted during the process, so no need to worry about that.
    - safely disconnect the device from your pc, at which point the sd card will now be mounted read-write and youre good to go
  8. #8  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    butnot sure where to startHi i was hoping you could help with the sd card read error you spoke about on here and might know how to fix it but using Windows 8 would like to follow the steps. but not sure where to start. Thanks
  9. #9  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    work perfectly thanks for that info.....even though i wasn't the one that ask
  10. #10  
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    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Quote Originally Posted by motazabualeme View Post
    Hello sir ,
    I tried to fix the problem following all steps but it didn't work cause it couldn't open support center ..don't know the problem is in my pc or in my device .
    please reply
    What Android version are you running?
  11. #11  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    you said
    then right click on the mapped drive to your sd card you may have to wait a minute or two for the mapping to take effect

    but my prob is i cant specify my device letter. so i cant able to start mapping, my device letter was not in the drive choosing box
    what can i do, help me
  12. #12  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    unfortunately
    this is above technique not working
    how to repair this
    any other trick what can I do plz help bro....
  13. #13  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    and
    Sir

    my
    handset name = Sony Ericsson xperia active st17i
    android version = 2.3
  14. #14  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can�t write to the sd card

    Thanks,
    I had camera saying Not enough space left on device ...
    So I searched in forums for a solution ====> I was drived into Unlocking root access ....
    Today i made a search .... landed on this solution ... it was great.

    Thanks a lot.
  15. #15  
    Rukbat's Avatar

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    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Quote Originally Posted by Akshay Raibagkar View Post
    unfortunately
    this is above technique not working
    how to repair this
    any other trick what can I do plz help bro....
    Try putting the card into a card reader and plugging that into the computer. It should come up as a drive letter. Follow the instructions from there.

    If the card doesn't come up (but other cards in the same card reader do), or the card shows an error and doesn't come up, the card itself may be bad. (There's a whole computer in that little card.) In that case, contact the card manufacturer. (In cases like that, it pays to buy SanDisk cards - they're very easy to deal with when a card goes bad [which is rare].)
  16. #16  
    aredub's Avatar

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    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Thanks! This worked for me (Samsung Galaxy S4 with 64GB Sandisk SD card). The error check said it found errors that it couldn't fix, but I can save apps to the SD card again. It looks like some of the photos on the SD card are now corrupted, but fortunately I had made backups.
  17. #17  
    ymf
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    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Thanks! The solution worked for me.
  18. #18  

    Angry Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can�t write to the sd card

    Not So Easily! I bought a new SD Card and re-installed all my music files. It, of [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can't write to the sd card-bad-sd-card.jpgcourse, still said "read only" and created a problem with apps that want to access it like camera. So I tried your suggestion on my win 8 computer. The phone showed up as a CD Rom so no fix option. I put the SD card in a usb holder and that showed up as Drive E: I then ran chkdsk and fixed it. NO BENEFIT. I then put the sd card back and Reformatted it and reinstalled my music files. NO BENEFIT. Still Read Only on the phone. I then downloaded "SDFormatter" and let that format the disk and again installed my music files. "NO BENEFIT still read only and creating errors.

    Any other ideas? It is NOT Likely the new card and I have formatted it enough. It seems it has got to be the phone. However without the sd card the phone works flawlessly! BTW, when the SD Card is installed the phone reports in the notification box "686%" as processing state of the mounted SD Card! That and the Read Only are the notable errors.

    Joe
    Last edited by Joseph Ross; 08-27-2014 at 08:14 PM.
  19. #19  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can�t write to the sd card

    Nice idea, but there's a problem. when you press "Check" to error check - you get the same error "The disk is write protected". haha
  20. #20  

    Default Re: [NOT -SOLVED] [ANDROID] What to do if sd card is mounted read-only/can�t write to the sd card

    Maybe it is the os? Look at this screen capture?
    [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can't write to the sd card-phone-failure.png
  21. #21  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can�t write to the sd card

    That didn't work for me, I believe my problem is beyond weird

    I can access my phone's sd card from PC, can read the file. I can also format my SD card from PC and inside phone both, but the thing is , although PC and Phone both successfully formatted but actually didn't have any effect. After the formatting, I refresh, then, all those previous folder and file appear agian. It's really making my head ache...

    I don't think it's my PC's problem, cuz I can use my phone's memory as normal, only the external SD card has this weird thing.

    Now I'm really confused and don't know where to look for a solution. Maybe I should just change other one SD card. gosh.
  22. #22  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/cant write to the sd card

    Quote Originally Posted by 9671111 View Post
    INTRO

    This info may help you if the following is true:
    - up until now you�ve had no issues when using your sd card
    - all of a sudden you can no longer write to the card, perhaps along with an error message being reported that indicates the sd card is mounted read-only

    This is another one of those situations where it is not necessary to take extreme measures such as doing a complete reformat, or outright replacing the card�as suggested in the many threads on this subject.

    Here are the facts. Your sd card�s file allocation table (FAT) has some kind of error. It�s an android-thing that crops up once in a while. Because of this FAT error, the card automatically gets mounted read-only, and no matter how many times you go into settings and try to unmount/remount the card, it is to no avail.

    SOLUTION

    Fix the FAT
    - connect device to your PC (USB connection) and make sure it�s set so that you can copy files to/from your computer (on my device in the notification panel there�s an option to do this under �USB connected�)
    - on your pc, open windows explorer (or click on start->computer), then right click on the mapped drive to your sd card � you may have to wait a minute or two for the mapping to take effect
    - select Properties
    - select Tools
    - select Check now� (for error checking) to automatically fix file system errors (no need to deal with bad sectors at this time)
    - when completed (takes a minute or so), the FAT will be in working order once again. No files are deleted during the process, so no need to worry about that.
    - safely disconnect the device from your pc, at which point the sd card will now be mounted read-write and you�re good to go
    Thanks for the helpful write-up! .
    Sent from my T-Mobile Note 4 using AC Forums.
  23. #23  

    Default Re: [SOLVED] [ANDROID] What to do if sd card is mounted read-only/can't write to the sd card

    THANK YOU so much for sharing the tip and my problem is solved.

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