Hi I was using a 64GB microsd card as internal storage on my Lenovo K4 Note (also known as Lenovo K4 Note A7010a48, A7010, Lenovo Vibe X3 Lite). Due to some issues in the display I had to give my cell phone to service center. While doing so unfortunately I did not take back up of the data. The service center guys factory reset my phone. Now I am unable to retrieve the data on the card and its showing as an empty card. I tried sending it to Stellar Data Recovery however they said it has unknown encryption and hence even though data is on the card it can not be recovered. CAN ANYONE HELP ME WITH A SOLUTION???