I recently touched on one of the many special Android boot modes that are present on the OnePlus 7 and the OnePlus 7 Pro. Today, I’ll be talking about a different one that has a completely separate use. It’s called Fastboot Mode (which is also referred to as Bootloader Mode sometimes) and it is just as easy to boot into.
If you have ever heard someone in the Android speak about Fastboot Mode or Bootloader Mode, then this is what they’re talking about. Similarly to the OnePlus 7 Recovery Mode feature, Fastboot Mode lets you do certain things with your smartphone that you can’t normally do when you are booted into the Android OS.
It’s this reason why you should be careful what you do when you get your OnePlus 7 in Fastboot Mode.
With the OnePlus 7 or OnePlus 7 Pro in Fastboot Mode (remember, also known as Bootloader Mode), then you can do things including unlocking the bootloader, flashing a custom (or modified) kernel, switching between A and B partitions, and more. You can learn more about various ADB and Fastboot tips here, but let’s stay on topic here with the 2019 OnePlus flagships.
How to Boot the OnePlus 7 and OnePlus 7 Pro into Fastboot Mode?
- Power off the smartphone
- Wait a few seconds after it has been shut down
- Then press and hold the Power, Volume Up, and Volume Down buttons at the same time
- You can let go of these three buttons as soon as you see the Fastboot Mode logo
Unlike Recovery, there isn’t a custom Fastboot image that we can flash onto our smartphone. It’s not even needed as we have access to a lot of low-level systems when the OnePlus 7 or OnePlus 7 Pro is in Fastboot Mode. As mentioned earlier, we can do all sorts of things such as flashing a custom kernel (or one that has been patched by Magisk).
We can issue special Fastboot commands that will unlock the bootloader of the OnePlus 7 and OnePlus 7 Pro. We can switch between Android’s A and B partition scheme (which is quite handy when running into a bootloop), and much more. I can’t possibly list all of the options we have but you can type out the following at a prompt to learn some of them. . .
That, of course, needs to be typed in either a Command Prompt, Windows PowerShell, or a Terminal window in the same folder as your ADB and Fastboot tools (unless you installed those tools system-wide). You’ll see a lot of text scroll down when you execute that command so just scroll up a bit and read from the top.
Again, be careful with what you do when using these commands while the phone is in Fastboot Mode. For instance, flashing a bad/corrupt kernel to the device will result in a bootloop until it’s fixed. I’m trying to keep a running list of stock OnePlus 7 kernels here, but there are other commands you could execute that are not as easy to bounce back from.