DOWNLOAD LENOVO ZUK Z1 (7DF)  STOCK ROM(FIRMWARE) FOR FREE 

This is the stock firmware for  Lenovo Zuk Z1 (7DF7) . 

This firmware can be used to unbrick or fix software corruption in the  phone . 

Download the phone firmware here for free :           http://www.mediafire.com/file/1d7iahny177lt61/Lenovo_ZUK_Z1_7DF.zip/file

DISCLAIMER : please, make sure you are certain that the above firmware is compatible with your phone before flashing it ; I am not responsible for the bricking of your phone.