Walton Primo EF Official firmware flashtools Drivers Walton Primo EF Official firmware, flashtools & Drivers Release note: Camera software updated Process: 1. Install driver. 2.Open Flash Tool 2. Open scatter_loading and select SW---> MP_mt72_z18cl_n25w_niao_jb3_wcdma_mul_tphone_20140428-161722_lichunlin_PC)? MT6572_Android_scatter_emmc_txt 4. Click Start all, press volume up+down button together and connect USB with Handset 5.When it shows Download ok in green, the installation is completed. Free download Click here to below download file now