Tips & Tutorials

How to Enter Download Mode on Samsung Galaxy S9+

This is a complete how-to guide on accessing and entering the Galaxy S9 Plus download mode. Samsung’s latest Plus flagship now has a considerable difference over the normal variant. The Galaxy S9 Plus features an extra camera, larger battery and larger display over the standard Galaxy S9. However, the functionality remains mostly the same and in this article, we will show you how to enter the built-in download mode on your Galaxy S9+. Referred to as sometimes the Odin Mode due to the Odin tool which can be utilized to flash system firmware and mods. Despite the phone being brand new, users should definitely know how to access this built-in mode as it will allow for manual software up-gradation down the road. Continue reading ahead to find a detailed step by step tutorial for how to access Download Mode on your Samsung Galaxy S9+

This mode is built-in to most Samsung Android smartphones by the brand themselves. Accessing it doesn’t void warranty and even further, Samsung technicians use this mode to restore devices. However, if you do flash custom ROMs or recoveries through Odin, chances are you will have you warranty nullified. Older Samsung users would be remembering how the home button was utilized in each of Samsung’s maintenance mode. However, with the Galaxy S9+ and absence of front physical buttons, the process gets a bit different. Don’t worry we have it all detailed right ahead.

Enter Download Mode, Samsung Galaxy S9+

What is Download Mode / Odin Mode?

Galaxy S9 Plus ships from Samsung with an unlocked bootloader from the factory which is quite different from other manufacturers who ship their smartphones and tablets with a locked up bootloader. This is also one reason why Samsung phones receive the highest amount of custom mod packages as it is very easy for any customer to use Odin on their PC along with their newest Samsung Galaxy smartphone – in this case, the Galaxy S9+.

Odin is an internal tool at Samsung that allows them to flash various firmware and files on to the Samsung phones and tablets. There are many releases of Odin available online, and you can download them all here. After the phone is connected to your PC in Download Mode, Odin will detect the device and if the connection is successful, it will set up a communication port between the phone and the computer. That will allow you to flash different packages on the Samsung Galaxy S9+.

Samsung Galaxy S9 Download Mode

A word of caution, do not mess around with Odin while in the Download Mode of your phone. It can cause serious damage to your device, beyond repair. And not to forget, anything you do in Download Mode is not covered in your official Samsung device warranty. Therefore, we recommend you use a specific guide or a detailed tutorial rather than experimenting on your own. You can find a really good guide on our website.

You can also use Odin to downgrade your Galaxy S9 Plus from a specific Android release or build number to another one. This comes in handy when a newer firmware causes slow downs, long boots or even crashes.

Just by accessing the Download Mode, you will not lose your warranty by Samsung. However, if you flash custom files like a ROM or root package which Samsung doesn’t officially intend, your warranty will be void. These custom files are generally those which are created by third-party developers and are not signed by Samsung. We think this is the only downside once you try to customize your phone through Download Mode and we also warn of this in every post we cover.

NOTE: Screenshots below may be of a different Samsung device, but should have similar screen on your phone as well. The following steps can be used to enter Galaxy S9+ Download Mode / Odin mode – works with all variants of the phone.

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How to Enter Galaxy S9 Plus Download Mode to Connect with Odin

Here is a quick step-by-step instruction on how to enter Download Mode on your Samsung Galaxy S9 Plus phone. If this is your first time with a Samsung Android phone, follow the following carefully:

Step 1 – Turn OFF your Galaxy S9+.

Step 2 – Now press and hold the following buttons on your phone together: Volume Down + Bixby Button + Power.

Step 3 – After the Samsung phone name logo, you will see a screen with a warning sign as shown below. Proceed ahead by pressing the Volume Up button.

Samsung Galaxy S9 Download Mode

Step 4 – Then you will be shown a screen similar to as shown in the photo below. This is the Download Mode aka Odin Mode for flashing firmware files using the Samsung flashing tool called Odin.

Samsung Galaxy S9 Download Mode

That’s it. You are now in the Download Mode. If you want to get out of it, simple hold the Volume Up and Power buttons for a few seconds (around 10 sec.) and your phone will reboot normally.

You may also like to check out our Galaxy S9 Plus section for official firmware updates, custom ROMs, tips and other tutorials.