For a while now we have been patching nougat on infinix hot 4. Some months back now, a stable nougat update was released to infinix hot 4 via tcard and splash file.
Today, for the first time those on marshmallow received their final nougat update via OTA.
Just go to system update on your phone then download the new nougat update.

For those that have root access, don’t try to install the OTA update because it will crash your device. Instead, reload your marshmallow ROM or follow this link here on how to install update with root access and try the update.