Looking to modify your OnePlus 5T? Start off with this basic guide on how to access the fastboot mode. Just like other numerous Android smartphones, the OnePlus 5T comes with this special mode which you can use to flash system files. Also known as the bootloader / bootloader mode, this partition of the phone is dedicated solely towards modifying and writing system partitions. The procedure ahead details each step needed to access the mode. Before you begin flashing, it is essential to note that in order to modify system files, you need to have proper USB drivers installed and an unlocked bootloader. Read ahead to find out how to access the Fastboot Mode on your OnePlus 5T are detailed below.
Fastboot Mode comes in handy when you want to access the recovery, install a custom recovery or when you want to manually flash a firmware. Getting your device into Fastboot Mode is no big deal, but we still get questions from many readers on how to do it. In case your phone is not detected by your computer at all, please make sure you have all the OnePlus 5T USB drivers installed.
What is Fastboot Mode?
In simpler words, Android has this maintenance mode (Fastboot) natively built into it for diagnostic and upgrading purposes. If we look into details, this is a mode designed for re-partitioning the phone, accessing vital system data and manually flashing firmwares. Usually, this mode is meant for developers but if you find yourself okay with experimenting than there is no such danger in accessing Fastboot.
With Fastboot, you can easily flash certain parts of or a full system. There are key parts to Android OS, the modem, bootloader and system. These parts can be upgraded or changed manually via a computer that recognizes the phone and has the Fastboot software.
Other than installing firmwares, there is nothing else you can do yourself. Except, there is a neat trick only specific to OnePlus devices. To access other system modes, you first have to access Fastboot. Meaning, if you are aiming for the recovery mode, you still need to access Fastboot first.
Booting into this mode is totally verified by OnePlus and there is no risk of losing warranty. But, if you try flashing different firmwares or firmwares which aren’t authorized by OnePlus, you could end up with a useless phone and total warranty loss. This is exactly why we will advise if you are not good with computers or the protocols laid by Android, you shouldn’t connect your phone to your PC while in Fastboot mode.
NOTE: Screenshots below may be of a different OnePlus device, but should have similar screen on your phone as well. The following steps can be used to enter Fastboot mode on the OnePlus 5T – all variants.
Method 1: How to Enter Fastboot Mode on OnePlus 5T
Here is a quick step-by-step instruction on how to enter Fastboot Mode on your OnePlus 5T phone. If this is your first time with a OnePlus Android phone, follow the following carefully:
Step 1 – Turn OFF your OnePlus 5T.
Step 2 – Now press and hold the Volume Down and Power button for 5T-6 seconds then release.
Step 3 – The phone will now boot into fastboot mode. This is your Fastboot screen, you can now connect your phone to your PC and access it via the Fastboot tool.
Method 2: How to Enter Fastboot / Bootloader Mode on OnePlus 5T using Android SDK
Step 1.1 – Download Android SDK from the Android Developers website and install. Also set it up with downloading platform-tools and USB drivers package in SDK. See: How to Set up ADB and Fastboot on Windows.
Step 1.2 – Download ADB / Fastboot – Android SDK Platform Tools separate package and install on your computer. Download from the following links depending on your OS and extract it anywhere in your computer.
- Windows: Download platform-tools-latest-windows.zip
- MacOS: Download platform-tools-latest-darwin.zip
- Linux: Download platform-tools-latest-linux.zip
Step 2 – Enable USB Debugging mode in your OnePlus 5T and connect it to your PC.
Step 3 – Go to Fastboot/Bootloader mode now. How? If you did Step 1.1 then Navigate to android-sdk-windows\platform-tools directory and open Command Prompt (Shift + Right-click > Open Command Prompt). And if you did Step 1.2 then simply go to where you downloaded/extracted the package. Open the folder and open Command Prompt (Shift + Right-click > Open Command Prompt).
Step 4 – Type in the following command and press Enter.
adb reboot bootloader
Step 5T – OnePlus 5T will switch off and then boot into the fastboot mode.
That’s it. You are now in the Fastboot Mode. If you wish to return to the normal boot, just select the first option. Keep in mind, Volume Down acts as scrolling while the Volume Up button acts as the Click/Select button in this mode.
I hope this tutorial was helpful for you.