Downgrade Oneplus 9 To Android 11 Exclusive =link= -

OnePlus has released official rollback packages for the OnePlus 9 series. You need the package that matches your device’s region. For example:

14 Day Trial

To try 3D-Tool V17 Premium/Advanced/Basic for free, follow these steps:

Download, the full v17 version: 3D-Tool V17 - 64bit
Install the software.
Launch the applicaiton and click on “Request Demo Key” to request a key by e-mail.
Re-launch 3D-Tool, and Copy/Paste the Demo/Trial Key you receive into the Licensing dialog splash screen, then click Activate key.

OnePlus has released official rollback packages for the OnePlus 9 series. You need the package that matches your device’s region. For example:

EULA

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