New samsung micro sd card problem.

[Mayur Satpute]

Hello, this is my first question.
I'm using infocus m350. Just installed new Samsung evo 64GB memory card. And set default write to sd card in Android settings- storage.
Kitkak 4.4.2
Now whenever i try to make any app's default memory location to sd card in that app's setting. It shows that the sd card is write protected or it doesn't have authorization to write.
Today i observed new pproblem. When i select multiple photos in galarygalary and delete them, only one photo gets deleted. Other remain there. Now same happening with the internal memory too. What is this issue...
Please help me out, i have to delete photos one by one. And abt that write protection too...

 

[souvikultimate]

There is an easy way to remove write protection. Do the following steps

• Insert your SD card into your Windows computer using an SD card reader or adapter.
• Click on “Start” and right-click on “Computer.”
• Select “Manage” from the list of options displayed. The Computer Management window will display.
• Click on “Disk Management” below “Storage” in the left pane of Computer Management. All the storage devices you are currently using will display in the middle pane.
• Right-click on the storage device you want formatted and select “Format.”
• Click on “OK.” Your computer will then format your SD card and remove the write-protection status from the disk.