Latest Samsung Galaxy Pocket Neo Dual SIM (GT-S5312C) - ZTM firmware
Samsung Galaxy Pocket Neo Dual SIM (GT-S5312C) firmware for Brazil (TIM) (ZTM): 1 build in the SamMobile archive, newest first. The latest is S5312CVJU0AOH1 (Android 4.4.2, built 31 August 2015). Open a build to download it, or switch region with the country selector.