• R40 file if you pay via Bank transfer, EFT, ATM deposit
• can be flash with any mtk flash tool
• info

Device Brand : PREMIO
Device Model : P520
Device CPU : MT6580
Device IntName : P520
Device Version : 7.0
Device Project : SMD_Premio_P520_V06_20170908
Device ExtInfo : P520
Device DisplayID :SMD_Premio_P520_V06_20170908
Device BoardID :P520
Device BuildDate :Fri Sep 8 17:22:01 CST 2017
Device Storage : EMMC