So the journey with these flagship devices seems to be on a rough patch. But thanks to the open-source community, they always bring some impressive tweaks that are enough to leave the tech enthusiasts impressed. The latest addition to this domain is the ability to convert your T-Mobile OnePlus 9 to Global Firmware. And in this guide, we will show you how to do just that. But before that, let’s make you aware of the benefits involved in carrying out this conversion. Follow along.
Why Should I Convert T-Mobile OnePlus 9 to Global Firmware
For the unawares, converting your OnePlus device to Global Firmware will open the gateway to a plentitude of goodies. These include the ability to carry out Local Upgrade, try out the open betas build, and get hold of the dual SIM functionalities. Likewise, you would also be getting faster OS upgrades. Moreover, you would no longer need the Unlock Token file in order to unlock the device’s bootloader. So with such a plethora of benefits attached, there are no brownie points in guessing as to why many users are looking to convert their T-Mobile OnePlus 9 to Global Firmware. If you are also on the same page, then follow along!
How to Convert T-Mobile OnePlus 9 to Global Firmware
This process is going to wipe off all the data from your device. So make sure to take a complete device backup beforehand. Along the same lines, it is recommended to backup the device’s working MODEMST1/2 and PERSIST partitions. If your device is rooted, then you could use the Partition Backup and Restore App for this purpose. 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.
STEP 1: Install Android SDK
First and foremost, you will have to install the Android SDK Platform Tools on your PC. This is the official ADB and Fastboot binary provided by Google and is the only recommended one. So download it and then extract it to any convenient location on your PC. Doing so will give you the platform-tools folder, which will be used throughout this guide.
STEP 2: Enable USB Debugging and OEM Unlocking
You will also have to enable USB Debugging and OEM Unlocking on your device. The former will make your device recognizable by the PC in ADB mode. This will then allow you to boot your device to Fastboot Mode. On the other hand, OEM Unlocking is required to carry out the bootloader unlocking process.
So head over to Settings > About Phone > Tap on Build Number 7 times > Go back to Settings > System > Advanced > Developer Options > Enable USB Debugging and OEM Unlocking.
STEP 3: Unlock Bootloader
Next up, you will also have to unlock the device’s bootloader. Do keep in mind that doing so will wipe off all the data from your device and could nullify its warranty as well. So if that’s all well and good, then please refer to our detailed guide on How to Unlock Bootloader on OnePlus 9, 9 Pro, and 9R.
STEP 4: Download the T-Mobile to Global Conversion Package
STEP 5: Boot to Fastboot Mode
STEP 6: Flash the Conversion Firmware
STEP 7: Factory Reset via Recovery
STEP 8: Update to the Latest OxygenOS
STEP 9: Flash T-Mobile Modem file
That’s it. These were the steps to convert your T-Mobile OnePlus 9 to Global 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 at the earliest.
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