Download recovery.img herehttps://mega.co.nz/#!gIQSlb4Y!Av45fz...Mg0P778n7cfaKkPut it in the root of the sdcard(/storage/sdcard0/here)Select "Recovery Update"And Choose the recovery.img you downloaded earlierReboot to Recovery Mode and see if it worked
NOTE: Make sure your mobile data is off before you open your Mobile Uncle Tools