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How to Switch install Oneplus 9 Pro ColorOS to OxygenOS

As we all know, OnePlus 9 series phones switch to ColorOS from HydrogenOS in China, so how to switch install Oneplus 9 Pro from ColorOS to OxygenOS, Gizmoweek post a how to guide without unlocking the bootloader, support official OTA update.

Please keep battery life of OnePlus 9 Pro phones above 60% before starting install the phones, backup personal data.

1, Download downgrade zip file, OnePlus 9 Pro download link https://dubox.com/s/10afc-KlIha3-XYba92Uasw (Password e222 ) , OnePlus 9 download link: https://dubox.com/s/1nFEumPjIAy72JNRmM5lolg (Password qywr).

2, Download complete and copy to phones, tap the OnePlus 9 Pro : “Settings” > “Software update” > “Settings (top right corner Gear icon)” > “Select installation package” > Select the intell ROM file > tap “Install now”

3, Please waiting loading and reading file package to 100%, tap restart and update the phone automatic from ColorOS to OxygenOS.

EDIT’S PICK : How to buy OnePlus Phones in Australia

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9 replies on “How to Switch install Oneplus 9 Pro ColorOS to OxygenOS”

Oxygen OS 2 latest Q&A: 1. OnePlus 9 series Installed the Oxygen OS version, you will receive an OTA update later. 2. problem IMEI does not display is expected to be resolved in the next OTA upgrade.

OnePlus official Build software upgrade download updated on May 7, EU ver Version 11.2.4.4.LE15BA , US Version 11.2.4.4.LE15AA , IN Version 11.2.4.4.LE15DA

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