I am using Redmi 2 with miui 7 following is the vold.fstab please let me guide to change this. I already root my device.
dev_mount sdcard/storage/sdcard1 auto/devices/msm_sdcc.2/mmc_host
#MTP
#dev_mount sdcard2/mnt/sdcard/external_sd auto/devices/platform/msm_sdcc.3/mmc_host