diff --git a/conf/fstab.gs201 b/conf/fstab.gs201
index fa58112e..15eba188 100644
--- a/conf/fstab.gs201
+++ b/conf/fstab.gs201
@@ -12,7 +12,7 @@ vendor_dlkm                                              /vendor_dlkm
 /dev/block/platform/14700000.ufs/by-name/boot            /boot                       emmc    defaults                 slotselect,avb=boot,first_stage_mount
 /dev/block/platform/14700000.ufs/by-name/efs             /mnt/vendor/efs             f2fs    noatime,sync             wait,check,formattable
 /dev/block/platform/14700000.ufs/by-name/efs_backup      /mnt/vendor/efs_backup      f2fs    noatime,sync             wait,check,formattable
-/dev/block/platform/14700000.ufs/by-name/modem_userdata  /mnt/vendor/modem_userdata  ext4    defaults,noatime,rw      wait,check,formattable
+/dev/block/platform/14700000.ufs/by-name/modem_userdata  /mnt/vendor/modem_userdata  f2fs    noatime,sync             wait,check,formattable
 /dev/block/platform/14700000.ufs/by-name/modem           /mnt/vendor/modem_img       ext4    ro,defaults,context=u:object_r:modem_img_file:s0,barrier=1    wait,slotselect
 /dev/block/platform/14700000.ufs/by-name/misc            /misc                       emmc    defaults                 wait
 /dev/block/platform/14700000.ufs/by-name/metadata        /metadata                   f2fs    noatime,nosuid,nodev,sync  wait,check,formattable,first_stage_mount