Downgrade One UI 2.1 to 2.0 (Samsung Galaxy Note10)

[Julie-271]

Hi guys,

I have recently installed One IU 2.1 on my Samsung Galaxy Note10 device and found that it has become incredibly laggy. I much prefer the older One IU 2.0.

I was wondering if anyone had any tips or advice on to downgrade back to One IU 2.0?

Follow up question, if I downgrade to One IU 2.0, can I install newer updates in the future if I wish to go back to One IU 2.1?

Thanks.

[Tallman]

Hi Julie-271,

Before you downgrade, do you want to try my suggestion? Usually after major upgrade, it is recommend to wipe cache partition to resolve most of the problems.

- Shutdown your phone
- Press and hold the volume up and power buttons at the same time
- Release all buttons when get into recovery mode
- Use volume up and down to navigate
- Choose Wipe Cache Partition
- Click power button to confirm
- Click Yes
- Click Reboot

Once rebooted. Try and see if lagging still exists. If yes, you can try downgrade to UI 2.0 then.

[Julie-271]

Hi Tallman, 

Thank you for your suggestion. 

I tried your reboot but the lag still persists unfortunately.

[CHMultimedia]

Hi. Yes, you can downgrade to OneUI 2.0. After you try Tallman's steps that could help, I'll give you everything you need to do it. And for your follow up, rolling back does not prevent you from getting new updates.

[Julie-271]

Hi CHMultimedia,

I tried Tallman's suggestions but my device is still lagging. 

Could you help me with the downgrade? Thank you for your answer to my follow up question.

[Shaggyskunk1BLM]

Seriously - I wouldn't waste my time reverting to 2.0 from One UI V2.1 - There's zero lag on my S10+ One UI V2.1 - But I ALWAYS backup my device with Smart Switch & Factory Reset after EVERY Android Version Update!
There's absolutely no reason for you to experience any lag on your device either.
As for Wiping Cache - Sure you can do that & it will likely help - I Wipe the Cache after every Security Patch Update as well....
I would DEFINITELY Factory Reset before I would EVER think of rolling back to a previous Android version!!,

[theonecid]

When in doubt, wipe system cache to hope it fixes any issue. lmaooo

[Julie-271]

Hi Shaggyskunk1BLM, 

Perhaps there is something different between the S10+ and the Note10. I found that the lag problem is common with Note10 users.

[Kinsley]

Hi @Julie-271,

If you have performed wipe cache partition as mentioned by @Tallman, and if it didn't help you.

Once you try the suggestion provided by @Shaggyskunk1BLM, to factory reset your device and check.

Before performing the factory reset backup your data using Smart switch.

Get back to us with the result. I hope the factory reset will fix the issue.

or if you have any particular issue you can ask/search here on the community, we will try to help you and try to fix the issue.

[CHMultimedia]

Alright then, let's get you back to 2.0.

I'll get the firmware. In the meantime, backup your data, just to be safe.