Topic: Recovery of files with formatted SD cards in the android-device
Prehistory such: updated the smart phone with 6.0 on 7.0 . Having updated on 7 version, decided to make the full reset, delivering a daw "to clear SD a card" being assured that the card (as it always and was earlier) will in addition be formatted only internal SD, and exterior will not be touched.
Phone informed "there is a SD-card formatting", it lasted seconds 5, and rebooted.
To my horror after reboot I found out that my exterior 64-GB the card also is formatted.
Solving, what not all is lost, I got a card, and interposing , ran full R-Studio. It did not find any file, any signature! DMDE - the same! Only a few the empty folders created again.
How such generally can be? How it is possible to make for 5 seconds empty each sector? In what there can be a business and what it is possible to undertake in my case?