Restore data on microSD-card

[ChristianPFC]

I had a sudden data loss on the external memory of my mobile phone (Samsung A9pro). Some of the folders are empty (but the folder is still there). About 8 GB out of 60 GB (of a 64 GB card) lost. This might be due to internal memory almost full (30 MB left).

 

I switched the phone off and on, unchanged. I freed internal memory, unchanged. I copied a few files on the external, unchanged.

 

I went to MBK (mobile phone shops in 4th floor), and after 2 h of scanning the card, the employee said he would have to format the card, and then might be able to recover the data. In case of success he would charge 800 THB. I took the card home to save everything, and got the idea to ask here for advice how to do it myself or recommendations where to go.

[blackshadow]

i always thort that if one formatts any thing  then ALL data is lost......

[fdsa]

do NOT format the card! if you do it will make data recovery more difficult.

 

If you have some important data on the card then give it to the data recovery specialists not random Somchai (and learn to do backups).

 

If not very important - you could try to mess with the card yourself. First of all make a byte-to-byte image of the card.

If you use Mac OS then you should have a

dd

command which you should use to copy the card.

Check here for instructions: https://pbxbook.com/other/dd_clone.html

[OneMoreFarang]

PhotoRec is by far the best program I know.

I used it already many times and I recovered lots of pictures (and other files) which they user didn't even remember anymore because he deleted them years ago.

 

https://www.cgsecurity.org/wiki/PhotoRec

 

[Bruno123]

Further to the PhotoRec recommendation; when you open the folder you have downloaded, open it and look for the qphotorec application. Double click on that to get started. Do not choose to write back to the SD card, choose a path to another drive with ample space for the recovered files.

[retiree]

If it were me, I'd

- remove the micro-SD,

- stick it in an adapter that allows plugging into a computer USB port,

- copy the SD to your disk (you said it's mostly still readable, right?),

- maybe try PhotoRec, but the documentation implies it will not be useful for late-arriving files (which might have been split up among free spaces on the SD card if you've used it for a while),

- use chkdsk from a command window without the -F option, so it just tells you what it would do,

- finally, either use chkdsk or the GUI tool via Explorer to fix the (hidden) disk index as necessary (which might save or lose) if you want to keep using the micro-SD.

 

I hope I understand your situation correctly, and good luck, 

-- Retiree