DESCRIPTION

POLYTRON R2457 ROCKET S2
POLYTRON_R2457_V10_20160314 STOCK ROM ROOTED
Android 5.1 Lollipop
ONLY SC7731
Gapps : include
Rooted : Yes
Multilang
———-
BUILD.PROP
ro.build.id=LMY47D
ro.build.display.id=POLYTRON_R2457_V10_20160314
ro.build.version.sdk=22
ro.build.version.release=5.1
ro.build.version.security_patch=2016-02-01
ro.build.flavor=sp7731geahdrplusoversea-user
ro.product.model=POLYTRON-R2457
ro.product.brand=POLYTRON
ro.product.name=sp7731geahdrplusoversea
ro.product.board=sp7731gea_hdr
———-

Install All ROM File:
FactoryDownload/UpgradeDownload/ResearchDownload
1 Unpack ROM POLYTRON_R2457_V10_20160314.zip
2 Run FactoryDownload/UpgradeDownload/ResearchDownload, hold volume down button 1-3 second while connect your android device to the computer
3 Click on "Load packet" and add the POLYTRON_R2457_V10_20160314.pac
4 Click on "Start"
5 During the flashing your mobile will restart automatically
6 Finish when green passed

OR IF YOU NEED TO FLASH "SYSTEM.IMG" ONLY, SEE BELOW :

ResearchDownload_R2.10.1001
1 Unpack ROM POLYTRON_R2457_V10_20160314.zip
2 Run ResearchDownload_R2.10.1001, hold volume down button 1-3 second while connect your android device to the computer
3 Click on "Load packet" and add the POLYTRON_R2457_V10_20160314.pac
4 Click on "Gear icon" and uncheck all "except system.img, FDL1 and FDL2"
6.Click Ok and Start Flash
5 During the flashing your mobile will restart automatically
6 Finish when green passed

-Thanks-

※Please make a backup of your device before installing or updating ROM