how do I revert back to pie 9.0?

[Ricardo4000]

how do I revert back to pie 9.0, step by step please? 

[Chuck_Zer0]

if you don't have a computer and you're not rooted you can't revert back at all reverting back has been something that was removed from Android many many moons ago in order for you to revert back the pie you would either have to do one of two things root your phone an attempt to re-install Android Pie that way or if it's on Sam mobile website or if you're fortunate enough to find it somewhere online you can download the Android Pie file save it to your SD card do one of those boot ups that put you into the factory mode settings and then just click update from SD card I had done this on Android Oreo to get to Android Pie since I wasn't able to root and didn't have a computer every Android operating system file is usually located online however just with anything else there's a risk of breaking your phone if you're not cautious and careful enough

[TheLightingGuru]

There are instructions in the FAQ section of the Beta Notices.
Chuck_Zer0 is correct that if you don't have a computer it is going to be pretty complicated.

[cjluhring]

From the beta notices page... Had #10 in the screen shot too but it won't upload the whole thing.

[frankster]

this is what you need to do.....

[Chuck_Zer0]

if you need an actual tutorial your best bet would be to look on YouTube and watch a couple videos

[SamsungUSABetaTeam]

How can I unregister from the One UI Beta Program?

To unregister from the beta program go to: “Settings > One UI Beta Program > Deregister” in the “One UI Beta” app.

- You will need to re-install (rollback) to the Samsung Official software that was being used prior to participating in this Beta program. This can be done with Samsung Smart Switch PC Version.

- Once the software is re-installed, the device will be reset and all data that was generated during the One UI Beta Program will be erased.

All data that was backed up before installing the Beta software can be recovered, however there may be limitations in recovering data that was created after installing the Beta software.

If you need assistance having your software rolled back to the latest approved version you can call us at 1-800-726-7864 and request the location to the nearest Service Center or go to Samsung.com and locate the Service Center in your area.

※ Please call the service center prior to visiting to ensure that you are able to bring your device before making a trip.

How do I rollback to my previous software during the Beta program?

- Download and Install the Samsung Smart Switch PC Version.

- Connect your phone to your PC > launch Smart Switch > Press “Downgrade” button to roll back to your previous Samsung approved software.