Vivo has confirmed to rollout the Android 10 update based on Funtouch OS 10 for Vivo S1 Pro under Greyscale testing. This information confirms by Vivo India’s tweet. Users have to wait for the official OTA update.
We do understand your curiosity. We are glad to inform you that we have released Android 10 for vivo S1 handset in Greyscale testing purposes. Please wait for OTA update. Once the preferred updates will be available, you will get the notification in your handset.
— Vivo India (@Vivo_India) July 14, 2020
The update rolling out in Greyscale is similar to the limited rollout. This means that after the update is ready, the company chooses to roll it out to select users, to ensure that there are no major bugs before the update rolls out to more devices.
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