In this guide, we will show you two different methods through which you can fix the Access Denied/403 Forbidden issue when downloading a OnePlus firmware. While the OEM no longer hosts firmware on its official site, there are still quite a few third-party sites and apps from which you can get hold of the same. In this regard, the Oxygen Updater app is the most popular one.
However, you can only get the latest available firmware using that app, downloading an older build is not possible. That is the reason why we have to head over to third-party websites and try to get our hands on OnePlus firmware files, only to get greeted with either the Access Denied or the 403 Forbidden error messages. If you are also in the same boat, then fret not. In this guide, we will make you aware of two nifty workarounds that should address this issue once and for all. So without further ado, let’s check them out.
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Fix Access Denied/403 Forbidden When Downloading OnePlus Firmware

Given below are two different methods that should help you get this job done. Go through both of them once and then try out the one that is in sync with your requirements. Follow along. For the sake of reference, we are using a OnePlus 13 OxygenOS 15.0.0.402 firmware having the download link https://gauss-componentotacostmanual-eu.allawnofs.com/remove-9ef4f572fcdbfe7620f6b286954ed9fc/component-ota/25/01/02/669206f94744432d80c6ac989fc8a3b0.zip
Via Browser
Just replace “componentota” with “opex” in the URL and the file will start downloading in your browser right away.
So in our case, the above URL will change from: https://gauss-componentotacostmanual-eu.allawnofs.com/remove-9ef4f572fcdbfe7620f6b286954ed9fc/component-ota/25/01/02/669206f94744432d80c6ac989fc8a3b0.zip to https://gauss-opexcostmanual-eu.allawnofs.com/remove-9ef4f572fcdbfe7620f6b286954ed9fc/component-ota/25/01/02/669206f94744432d80c6ac989fc8a3b0.zip
Via Terminal
Windows Users
- Open Command Prompt and type in the below command, replacing download-link with the download link of the firmware file:
curl -O download-link
- For example, in our case, the above command will transform to:
curl -O https://gauss-componentotacostmanual-eu.allawnofs.com/remove-9ef4f572fcdbfe7620f6b286954ed9fc/component-ota/25/01/02/669206f94744432d80c6ac989fc8a3b0.zip
Mac users
- Open Terminal and paste the below command to install Homebrew
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
- Then paste the below command to install wget
brew install wget
- Now type in the below command to download the firmware, replace download link with the firmware link:
wget download link
- For example, in our case, the above command will transform to:
wget https://gauss-componentotacostmanual-eu.allawnofs.com/remove-9ef4f572fcdbfe7620f6b286954ed9fc/component-ota/25/01/02/669206f94744432d80c6ac989fc8a3b0.zip
That’s it. These were the two different methods that would help you fix the Access Denied/403 Forbidden issue when downloading a OnePlus firmware. 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 as soon as possible.