How to Update Software on Samsung Galaxy J3 2017 manually?
Go to Settings –> About Phone –> Software update.

By following the above method you can easily find if you have any latest update on your phone. You can tap the option titled “Download Updates Manually”. If the update is not available, then make sure your device is not rooted or installed any modified firmware.
Before proceeding to download, make sure your phone has enough battery backup with at least 50% battery. Also, check if you have enough storage to download and install the latest update on AT&T Galaxy J3 2017 SM-J327A. We suggest you to choose a Wi-Fi or a 4G connection to download it. Also, don’t forget to take the data backup to avoid any problem in case things go wrong. After following the procedure mentioned above, you can now start downloading January 2018 Security Patch for Samsung Galaxy J3 2017. As this update is based on Android 7.0 Nougat, it wouldn’t take a lot of time to download and install.
[su_note note_color=”#fff2fc” text_color=”#000000″]If you have not received the update, then you can try upgrading your phone via OTA or Samsung Kies. In case if you have the full firmware download, then please share the URL here, so that everyone can enjoy the same by flashing via ODIN software. [/su_note]
Download Firmware
Download FULL Firmware
Required ODIN AND DRIVERS:
PRE-REQUISITE :
- Download the required firmware and drivers.
- Your device must have 50% – 70% Battery.
- You need PC or Laptop to install this firmware.
- Take a Full Backup on your phone before Installing any new firmware. So make sure you have data’s in case if something Wrong (This Process won’t lose your data).
- You need to Enter Samsung Download Mode.
- Make sure you have followed the steps properly. Don’t Skip and Read! – We are not responsible for any damage.
How to update via ODIN Software
Here we have shared the full firmware download link with ODIN drivers and software to install J327AUCS2ARA1 January 2018 Security Patch for AT&T Galaxy J3 2017. To install the firmware, you must first download the required software and drivers on your PC.

Guide to Flash Firmware Using ODIN
To Know More About Android 8.0 Oreo
Source: AT&T