Run these commands:
adb push FILEPATH\f21services.jar /data/local/tmp
adb shell
su
mount -o remount,rw /
cp /data/local/tmp/f21services.jar /system/framework/services.jar
chown root:root /system/framework/services.jar
chmod 0644 /system/framework/services.jar
restorecon -v /system/framework/services.jar || chcon u:object_r:system_file:s0 /system/framework/services.jar
rm -rf /data/dalvik-cache/*
rm -rf /data/system/package_cache/*
reboot