Galaxy J7

1. From the home screen, tap Settings.
2. Tap About device.
3. Tap Download updates manually.
4. Tap OK.
5. Tap Start.
6. A restart message will appear, tap OK.

Checking for Updates

Most of the Android devices such as Samsung Galaxy J7 are configured to notify you of updates. Some devices though allow you to turn off the automatic notifications. You can check to see if an update is available for your phone by following these steps:

1. Press your Options button, then select "Settings"
2. Select "About phone"
3. Select "System updates" or "System software updates"

When a pop-up window tells you that an update is available, it will usually let you install it at a later more convenient time. Just select "Install Later", and it will prompt you periodically to update.

The first part of the update is downloading the update file. The update can be very large and take a long time. I recommend you use Wifi or 4G when you're downloading an update. Note that there are no charges for updates, but the usual data connection charges still apply.

After the update is downloaded, it will ask you to install the update. Note that you will not be able to make calls (including 911 calls) while it's updating, so don't start doing anything life threatening while it installs ;)

Some installations will reboot your phone and you'll see a picture of a little green Android robot jumping out of a box. The progress bar on the bottom of the screen will show you how far along you are. After the reboot you may or may not notice anything different in your phone. It all depends on what was included with the update.

or

How can I update my Samsung Galaxy J7?

Select Apps

Select Apps.

Select Settings.

Scroll to and select About device.

Select Software update.

Select Update now.

Select OK.

If your phone is not up to date, you will see the following screen. Follow the instructions on the screen.

other details

https://www.samsung.com/in/support/model/SM-J700FZDDINS/