One UI 3.0 Dual Sim Problem

[gerlapz]

I'm running dual sim-cards and I got a problem with 3.0 UI update that I received in 01/01/2021. The messaging app is messed up. They got rid of the individual buttons for each sim-cards. I can't just type a message and press on one of the two specific send buttons for my two sim-cards. Before I would always have the two different buttons for each sim-cards to choose from when sending/replying to a text message. Now, it's gone. I have to go to some settings to tap and change sim-cards and go back to send the message. It's an absolute pain.

[Bern2Hell]

Experienced the same thing when I updated to One UI 3.0. But later I noticed that you just have to press the sim 1 button in texting or calling to switch it to sim 2. Hope this helps you out. 😊

[gerlapz]

In the number dialling screen I can see the Sim1/Sim2 option but in texting I don't see it. I can only see it when starting a new text/conversation. But when replying to a text message, I have to tap the 3 little dots on the upper right to see other options and down at the bottom is where the SIM toggle is but again it's not user friendly enough by hiding the option.

[jncrqs]

It's my problem too! One more problem is that I'll have to text first before the button show up in order for you to select sim1 or sim2, then the next problem is... all the text that i typed will be deleted. Very frustating!

[Dual-eSIM-S24Ultra]

@gerlapz and ALL here  -  I'm happy to help any Friend that has a Samsung Dual SIM device!!

FYI, I'm from Toronto, Canada and my Samsung Dual Sim Note 10+ device MODEL NUMBER: SM-N975F/DS is an international import (I believe from Samsung Vietnam). Like many people around the Workd, I also use SIM1 (Network Provider: BELL Canada) for work purposes and SIM2 (Network Provider: Rogers) for personal use. After running out of patience waiting many months for Samsung to fix this issue in UI 3.0, well, on March 4th 2021, I decided to revert back to Android 10, UI 2.5. Since then, my device is back to normal and working perfectly fine. Just like everyone here and many other similar threads for same issue, now I'm just monitoring every Samsung Community daily and waiting for someone to eventually post good news that Samsung has fixed this issue in Android 11, UI 3.x. Meanwhile, the best part is I have my SIM1 + SIM2 buttons for calls and messages! Since I'm in Canada, Samsung Members app will only connect to a local country, so when I posted a this issue in Samsung Community in Canada, fortunately and so lucky that I got help from an Expert Level 5 (CHMultimedia) who did me the huge favor uploading Authentic Samsung Software files and instructions with screenshots to his OneDrive. Please see below.

WARNING / CAUTION - PLEASE READ FIRST:

#1. Below recommended solution will only work for: SAMSUNG DUAL SIM NOTE10+ MODEL NUMBER: SM-N975F/DS

IF YOU HAVE  A DIFFERENT MODEL NUMBER THEN STOP AND GET THE AUTHENTIC SAMSUNG SOFTWARE FILES THAT ARE SPECIFICALLY FOR YOUR DEVICE MODEL (sorry, I have no idea where someone would get Samsung Software files for a Dual SIM Note 10, S10, S10+, S20, Note20, Note20+, A52, A72, etc)

#2. BACKUP ALL YOUR DATA - ie. contacts, messages, calls, apps, and all types of media - images, videos, docs, etc....as this process will wipe out the data on your device!

For the SOLUTION to revert your Samsung Dual SIM Note10+ Model Number: SM-N975F/DS  back to Android 10, UI 2.5, go to my post in SAMSUNG CANADA COMMUNITY (link below):

https://r1.community.samsung.com/t5/galaxy-note/lost-the-two-dual-sim1-sim2-buttons-for-calls-amp-me...

GOOD LUCK !!!

Respectfully,

Farooq aka @Riridwiar