In this guide, we will show you the steps to fix the No Valid Operating System could be found error. When it comes to custom development, then it gives you the platform to welcome abode tons of modules and tweaks. However, on the flip side, there’s always a risk of things going south. Just a slight deviation from the correct path and your device might end up in a bootloop/bricked state, thereby preventing you from accessing the OS.
In this regard, one of the most dreaded issues is the “No Valid Operating System could be found” and the reason for the same is hardly a secret either. When the device states that it cannot find an operating system to boot, then things cannot get any worse, can it? Fortunately, this issue isn’t actually as fearsome as it looks and it could easily be rectified using a nifty method. So without further ado, let’s check it out.
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Fix No Valid Operating System could be found
In case the device’s bootloader is unlocked, then the process becomes quite easy to carry out. On the other hand, if your device’s bootloader is locked, then then it should have atleast checkmarked one requirement: the OEM Unlock toggle should have been enabled. If that is not the case, then you’ll have to use an unbrick tool [discussed below]. So keeping all these points in mind, let’s get started.
Do note that irrespective of the method you opt for, the process will wipe off all the data on your device. Droidwin and its members wouldn’t be held responsible in case of a thermonuclear war, your alarm doesn’t wake you up, or if anything happens to your device and data by performing the below steps.
For Unlocked Bootloader
Since the bootloader is already unlocked, you could easily rectify the No Valid Operating System could be found error. For that, boot your device to Fastboot Mode via the Power and Volume key combinations. Then depending on the device that you use, refer to its associated guide below:
- Pixel: How to Flash Firmware on Pixel via Android Flash Tool
- Xiaomi: Install MIUI Fastboot ROM via Mi Flash Tool on Xiaomi/Redmi/Poco
- OnePlus: Download and Install Fastboot ROM on any OnePlus Device
For Locked Bootloader with OEM Unlock Enabled
If the bootloader is locked, but you have enabled OEM Unlock beforehand, then count yourself among the lucky ones as you could still fix the No Valid Operating System could be found error relatively easily. For that, you’ll have to unlock the bootloader on your device [this will wipe off all the data and might nullify the warranty as well] and then refer to the below guide [depending on your device] to address the issue at hand.
- Unlock Bootloader: How to Unlock the Bootloader on any Android Device
- Pixel: How to Flash Firmware on Pixel via Android Flash Tool
- Xiaomi: Install MIUI Fastboot ROM via Mi Flash Tool on Xiaomi/Redmi/Poco
- OnePlus: Download and Install Fastboot ROM on any OnePlus Device
For Locked Bootloader with OEM Unlock Disabled
if the device’s bootloader is locked and OEM Unlock is disabled as well, then it’s going to be a bumpy ride enough. Apart from OnePlus users, all the other ones might have to shell out some bucks to rectify this issue. This is because the OEMs no longer allow you to flash unbrick firmware, instead they require you to visit their service center and get the job done. But if you own a OnePlus device, you could still rectify the issue without the need to spend a dime.
If you own a OnePlus 1 to OnePlus 9 series device or a few initial variants of Nord, then you could use the MSM Download Tool to flash the OPS firmware and rectify this issue. On the other hand, OnePlus 11, 12, and Open users could use the Oppo Flash Tool to resolve this error [there’s no way to bypass the OEM restriction for the OnePlus 10 series, for now]. So refer to our below-linked guide to flash the firmware in ELD Mode and your device will be up and running in no time!
How to Unbrick any OnePlus Device via MSM Download Tool or Oppo Flash Tool [Video]
That’s it. These were the various methods to fix the No Valid Operating System could be found error. If you have any queries concerning the aforementioned steps, do let us know in the comments. We will get back to you with a solution at the earliest.
