Download Android Nougat 7.0 firmware v144 PC version for Infinix Zero 5 Smartphone from here, here or here. Download Android Nougat 7.0 firmware v144 TF card version for Infinix Zero 5 Smartphone from here, here or here. Download Android Nougat 7.0 firmware v193 from here or here.
Archive: X603-H575A-N-IN-171103V144 & X603-H575A-N-IN-171103V144-Tcard_update_171103V144 / X603-H575A-N-171103V193
Model: Infinix Zero 5 X603 Smartphone
Image file size: 1.49 GB / 1.39 GB
Platform: Mediatek Helio P25
Build number: Infinix/H575/Infinix-X603:7.0/NRD90M/X603-H575A-N-IN-171103V144:user/release-keys
Inside archive: firmware + how-to-upgrade-infinix-smart-device-via-x-flash-tool + x555-zero4-english160907
Caution: Please do not update firmware unless you know what you are doing, you really want it or it is absolutely necessary. Firmware updates may occasionally have bad results, like bricking your device, temporarily or permanently. The firmware update process is done entirely at your own risk. Before attempting to update the firmware, back up your data.