Micromax Unite 2 can't read sd card or internal storage

I recently flashed xposed arm.zip in order to use xposed modules. However the phone got stuck in android is upgrading screen, so I took out sd card, downloaded the xposed uninstaller through another phone and flashed it on my unite 2. Now the phone turns on normally and I can install apps but both sd card and internal storage (total storage-app storage) is shown with a capacity of 0B and 0B free. I tried different sd cards but all of them shows up as 0B on the phone. Using my sd cards on other devices and pc works fine, it shows fat32 format and all the data is still there. Only my phone can't read or detect them. Any help?