Testdisk stuck at 99% trying to recover exfat fs on 64gb micro sd card [SOLVED]

How to use TestDisk to recover lost partition
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frele
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Joined: 18 Apr 2016, 23:31

Testdisk stuck at 99% trying to recover exfat fs on 64gb micro sd card [SOLVED]

#1 Post by frele » 18 Apr 2016, 23:42

Solution:
-Use 7.1, 7.0 got stuck
-Recover correct drive (at one point I tried to recover wrong device ;) )
-7.1 detected the exfat correctly and I was able to write the partition info back to card.

Original message:

My Sandisk 64gb micro sd card got corrupted when switching between the phones.
Windows sees the drive as RAW, EaseUS data recovery finds every file with correct folders and filenames, but I won't get any progress with testdisk.
So data is still there, but how to get to it...

I selected first the Intel/Pc partition as the type and quick analyzing did not find any partitions. Deeper scan showed 2 partitions that testdisk labelled as NTFS and was unable to read any files.
Then I tested to analyze card as EFI GPT and below is the scan result. It freezes at 99%

Code: Select all

Disk \\.\PhysicalDrive2 - 64 GB / 59 GiB - CHS 7783 255 63
Analyse cylinder  7783/7782: 99%
  MS Data                  4940800 3911967856 3907027057
  MS Data                     2048  125042687  125040640
  MS Data                125042687  250083326  125040640
Photorec will get me the jpg files but completely without exif data, so I have thousands of images in random order and ofcourse mp4's and other files are missing.
Last edited by frele on 19 Apr 2016, 14:18, edited 2 times in total.

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Re: Testdisk stuck at 99% trying to recover exfat fs on 64gb micro sd card

#2 Post by cgrenier » 19 Apr 2016, 06:47

Do you have the problem with Testdisk 7.1-WIP ?
Try TestDisk, Advanced, List. Can you copy your files ? Please copy and paste the testdisk.log file if you have problems.

frele
Posts: 3
Joined: 18 Apr 2016, 23:31

Re: Testdisk stuck at 99% trying to recover exfat fs on 64gb micro sd card

#3 Post by frele » 19 Apr 2016, 07:01

Thank you for the reply. Actually the reason why it did not work was that at some point in middle of the night between the attempts I selected my 64gb cache SSD instead of 64gb microsd so it was user error. I tried now with 7.1, selected intel and exfat partition was found. I'm now in process of copying files ;) Thanks for this great software. After I have copied all files that are possible to recover (many have failed), is it possible to write the partition info back to card and then try chkdsk?

frele
Posts: 3
Joined: 18 Apr 2016, 23:31

Re: Testdisk stuck at 99% trying to recover exfat fs on 64gb micro sd card

#4 Post by frele » 19 Apr 2016, 11:42

I stopped the copy process, since it was generating lot of errors. I rescan the filesystem and wrote it to the card. Now I can access the card from windows and all files that were not listed as red in testdisk filebrowser seem to be intact.

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