SYMPHONY V75 FLASH FILE 

MT6580 6.0 100% ok without password

ProdName : V75

ProdModel : V75
Device : V75
AndroidVer: 6.0
MTKxCPU : MT6580
MTKxPRJ : ALPS.W10.24.p0 [Read Ok] : preloader_v2800.bin
[Read Ok] : lk.bin
[Read Ok] : boot.img
[Read Ok] : recovery.img
[Read Ok] : logo.bin
[Read Ok] : secro.img
[Read Ok] : system.img
[Read Ok] : cache.img
[Read Ok] : userdata.img [ScatCFG] : MT6580 / V1.1.2 / v2800 / EMMC

https://drive.google.com/open?id=0B8CxiZqnzCE2YmtLNW1ZZXZsZEU