Data Recovery Patterns

Software

Puran - free

• http://www.puransoftware.com/File-Recovery-Download.html

GetDataBack

exFat

• https://www.howtogeek.com/235596/whats-the-difference-between-fat32-exfat-and-ntfs/
• http://www.androidauthority.com/high-capacity-microsd-cards-android-gary-explains-690710/

various software

They don't work for getting access to an android7 exFat sdcard

• https://www.stellarinfo.com/article/sd-card-recovery.php
• http://www.lc-tech.com/pc/rescuepro-standard-demo-form/
• https://www.sandisk.com/home/memory-cards/microsd-cards/extremepro-microsd
• https://kb.sandisk.com/app/answers/detail/a_id/8236/~/sd-card-damaged-or-no-sd-card-error-in-android-device

Resources

• https://android.stackexchange.com/questions/7069/data-recovery-how-to-restore-deleted-formatted-files-on-hd-micro-sd-card