SAMSUNG SM-G550T 4G FIX FIRMWARE DOWNLOAD FOR FREE

A ROM, for those who don't know, is an operating system build that runs on your device with basic applications such as an address book, calendar, camera, etc.
A major advantage of Android smartphones is that they can be operated by third-party systems and not only with the original ROM. Custom ROMs replace the pre-installed version of Android on devices. The substitution is made by a variation of the AOSP, adapted by volunteers with 'too much free time'.
These volunteers often work more frequently than the manufacturer itself – at least when it comes to updates.
AOSP?
AOSP means Android Open Source Program. It is a version of the open source code of Android, developed by Google in its consortium of brands to offer a pure version of the system, which is available to anyone. It can be modified by developers without the need to follow standards of Google applications.

NOTE:THIS FILE IS NOT PASSWORDED

This rom fixes the following issues
MULTI LANGUAGE-FIX ALL CODE
-FIX MESSAGE 2K-FIX LTE/4G/3G/2G
-FIX NETWORK MODE-FIX AUTO APN
-FIX KEYBOARD-FIX USSD
-CHANGE BOOTANIMATION
-ADD CALLRECORD
-ADD SHUTTER SOUND ON/OFF-etc.

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