Samsung Galaxy S21 (G991u1) RCS - Samsung Galaxy S21 Guides, News

So I think I figured out how to get chat features in Samsung messages for those like me that prefer the stock messaging app.
Idk if this works for every Samsung device, but it might. I know for sure it worked for my S21.
But all you have to do is flash the U firmware on the the U1 device. Use the HOME_CSC and definitely make a backup first. I withdrew from the OneUI 4 beta to test this. Then my phone updated 3 or 4 times after it finished downgrading to android 11. I used Smart Switch on the computer to do my backup, downgrade and restore. Phone currently has T-Mobile splash screen on boot, but I literally don't care. I have metro-pcs and they don't offer RCS. But I still have the chat settings in my Samsung Messages app and it still functions properly. So I think as long as you have the T-Mobile U firmware, it will still work because the feature is in the firmware.
I can't guarantee results for everyone, I just know it's working for me.

Related

[Q] Branded T-Mobile UK Samsung GLXY S 2

Hi everyone,
I recently upgraded to the Samsung Galaxy s 2 on T-mobile here in the UK. Obvisously it came with T-mobile's version of Android 2.3.3 . When the phone starts up or shuts down, it displays T-mobile's logo wallpaper.
The phones has an option to search for updates, but it can never connect to the server.
It does not have the option to sign into the Samsung account, it does not exist on my handset, only Google account and the usual facebook and others options.
As a result of this I don't have the option to use Samsung's mobile tracker. For those unsure google samsungdive.
I don't need to use other networks on my handset, just T-mobile. T-mobile have removed the tracking option so this is why I want to put Samsung's software on my phone.
My question or what I want to do is this:
1)Remove the current T-mobile Android software from my phone and install Samsung's Android firmware.
2)Have the option of signing into Samsung's account from my phone and be able to use Samsung's tracker.
3)Be able to update to the latest updates as and when available.
Please advise me as to what I have to do or what my best options are.
Thanks very much!
I would flash the stock version of JVR and use a custom kernel like semaphore etc
Sent using geek power
My friend can you tell which modem u r using on t mobile. Or baseband
Baseband version:
I9100BOKG1
I Spoke to Samsung about this and they said because I got the phone through my contract with T-Mobile, T-Mobile have played around with the software and some features are not present compared with buying the phone sim free with the Original Samsung software.
They said if I remove current software and put Generic Samsung software I will void warranty on the phone.
What do you think about this?
Thanks
I'd flash anyway mate, worse case scenario is if you get a fault, you can reset to factory using ODIN. Plus, I have a t-mobile s1 and it was flashed day of purchase from t-mobile, and even if you ring them, they aint really too bothered if its been flashed. Example, I flashed my brothers which played up, he rang t-mobile told them it was flashed they said well done, and would replace it if I couldnt sort it.....which I did.
In a nutshell....flash and dont look back!! Its really quite hard to'kill' an android phone!!

AT&T NumberSync Note 8(SM-N950F) with Gear S3 working?

Does anyone have a Gear S3(AT&T LTE version) and got it to work with NumberSync on their International Note 8(SM-N950F)? AT&T chat seems to have no clue as to why it won't work(I'm basically thinking since it's an international version and not branded At&T), but the reps can't confirm that. They just say buy a new device that is NumberSync capable, but when I ask them which phones are those, they can't give me an answer..
They thought it was my IMEI, which at the AT&T store, they had to spoof the IMEI from my Moto X Pure Style to get the 4G/LTE to work correctly.
It would just be great to have the NumberSync to work, but I have no problems with the Bluetooth connection for now.
jpinoy said:
Does anyone have a Gear S3(AT&T LTE version) and got it to work with NumberSync on their International Note 8(SM-N950F)? AT&T chat seems to have no clue as to why it won't work(I'm basically thinking since it's an international version and not branded At&T), but the reps can't confirm that. They just say buy a new device that is NumberSync capable, but when I ask them which phones are those, they can't give me an answer..
They thought it was my IMEI, which at the AT&T store, they had to spoof the IMEI from my Moto X Pure Style to get the 4G/LTE to work correctly.
It would just be great to have the NumberSync to work, but I have no problems with the Bluetooth connection for now.
Click to expand...
Click to collapse
Have you tried reseting the watch?Numbersync works in part with the stock messaging app. AT&T advanced messaging syncs your messages to the server and then it gets forwarded to your Gear. For numbersync to work on the international version you will most likely need to odin the AT&T stock image since it wont have the Advance messaging or try installing the advance messaging files. I've had my fair share of numbersync issues but eventually it got better with my S3/S8+ and now Note 8.
Sent from my SM-N950U using Tapatalk
neopolotin75 said:
Have you tried reseting the watch?Numbersync works in part with the stock messaging app. AT&T advanced messaging syncs your messages to the server and then it gets forwarded to your Gear. For numbersync to work on the international version you will most likely need to odin the AT&T stock image since it wont have the Advance messaging or try installing the advance messaging files. I've had my fair share of numbersync issues but eventually it got better with my S3/S8+ and now Note 8.
Sent from my SM-N950U using Tapatalk
Click to expand...
Click to collapse
Hmmm... I see you have a US version of the Note 8, so you're probably in a better situation than I am atm. My Note 8 on my account only shows up as unknown device. I haven't been on this page as much since rooting my phone, so I'll follow up on the CSC flashing or ODIN AT&T image, if that's possible now. I'll look for Advance messaging as well. I know the Gear S3 still shows that when not in bluetooth or Wi-FI, it shows remotely connected, I still get notifications of miss calls from my phone, so it's sending me notifications in that sense, limited...
Thanks for the mentioned options, I'll look into them.
I tried to access NumberSync through my account but it says note 8 not compatible
Make sure you are signed into the myAT&T app. It uses that to sync your info/number.

(Firmware Inside)Unlocked Samsung Note 9 - Finally Verizon Firmware With Wifi-Calling

Hi All,
I have been trying to follow all of these threads and waiting to get my hands on some VZW firmware since I am on verizon. I was rocking the Unlocked firmware but with only VOLTE , which is ok but I wanted to have backup for WIFI-Calling. I noticed in the other thread ( https://forum.xda-developers.com/ga...ock-odin-files-firmware-t3833205/post77449285) a user said to use Sam Mobile to download the firmware which Took about 5 hours. I figured the APP could maybe pull it if I typed in the right Model and Region. I tried using some different ones and the one that worked was the model : SM-N960U1 with "VZW" as the region. I have attached the screen shot and also uploaded to google drive for people to easily download.. Enjoy !!! The exciting thing is I used Odin with the said files on top of running the unlocked firmware and used the Home CSC and my data was kept safe. Basically everything was the same and it included the crappy Verizon apps but now I have wifi-calling .. sorry just a little excited..
The full Firmware name is this : N960U1UEU1ARH2/N960U1OYM1ARH2/N960U1UEU1ARH2/N960U1UEU1ARH2
Link is here : https://drive.google.com/file/d/1028hyBbHvTK1Pz9efGyPq5-Oeiuu5otd/view?usp=sharing
daillcyruz said:
Hi All,
I have been trying to follow all of these threads and waiting to get my hands on some VZW firmware since I am on verizon. I was rocking the Unlocked firmware but with only VOLTE , which is ok but I wanted to have backup for WIFI-Calling. I noticed in the other thread ( https://forum.xda-developers.com/ga...ock-odin-files-firmware-t3833205/post77449285) a user said to use Sam Mobile to download the firmware which Took about 5 hours. I figured the APP could maybe pull it if I typed in the right Model and Region. I tried using some different ones and the one that worked was the model : SM-N960U1 with "VZW" as the region. I have attached the screen shot and also uploaded to google drive for people to easily download.. Enjoy !!! The exciting thing is I used Odin with the said files on top of running the unlocked firmware and used the Home CSC and my data was kept safe. Basically everything was the same and it included the crappy Verizon apps but now I have wifi-calling .. sorry just a little excited..
The full Firmware name is this : N960U1UEU1ARH2/N960U1OYM1ARH2/N960U1UEU1ARH2/N960U1UEU1ARH2
Link is here : https://drive.google.com/file/d/1028hyBbHvTK1Pz9efGyPq5-Oeiuu5otd/view?usp=sharing
Click to expand...
Click to collapse
By flashing the VZW firmware you also lose the samsung cloud and also the places and Caller ID/Spam feature. Maybe more but that is as much as I can tell.
For me that's not a big deal
trebills said:
By flashing the VZW firmware you also lose the samsung cloud and also the places and Caller ID/Spam feature. Maybe more but that is as much as I can tell.
Click to expand...
Click to collapse
I used vzw firmware and was able to use samsung cloud, use QuickShortCutMaker to run Samsung Cloud, then within the app, choose "SHow Samsung Cloud Icon" which will show with the apps.
Yazen
One thing I just noticed is that, using android messages was I thought working 100 % but then I had people calling me saying they were texting me and I wasn't getting them.. They would get the SMS I sent but I would not be able to recieve. I switched to the Samsung Native app and bam my messages were there. I don't know if thats because I did not wipe first before doing ODIN or not ..
daillcyruz said:
One thing I just noticed is that, using android messages was I thought working 100 % but then I had people calling me saying they were texting me and I wasn't getting them.. They would get the SMS I sent but I would not be able to recieve. I switched to the Samsung Native app and bam my messages were there. I don't know if thats because I did not wipe first before doing ODIN or not ..
Click to expand...
Click to collapse
This is a common issues with newer Samsung phones. Their implementation of Advanced Messaging is half-assed and unfortunately you almost always have to stick with their SMS app to not have issues. Luckily the app has been updated a lot since the S7 days and is no longer a steaming pile of garbage.
XAA wifi calling is working fine with me.
NICEGYPT said:
XAA wifi calling is working fine with me.
Click to expand...
Click to collapse
Are you using Verizon as your wireless carrier? How did you turn it on?
My note 9 (unlocked XAA) doesn't have any options to turn on Wifi calling when my Verizon SIM is inserted. But Wi-Fi Calling turns on with a notification in the shade, and I can toggle via phone>menu>setting>wifi calling, when my T-Mobile SIM is in the phone.
@KidJoe
I did this on My device, Unlocked to VZW. It worked.
Wifi calling is located in Settings>Connections>Advanced Calling. Make sure you have a proper cel signal when you activate it.
Notes:
- As OP mentioned, Use the Home CS file and all of your existing settings, apps, etc won't get wiped.
- I was surprised that there were only like 6-7 crapps that came from Verizon. Mostly Yahoo mail and a couple games. The Verizon "Security & Privacy" and Cloud apps cannot be removed. I kept the voicemail and caller ID apps.
Otherwise, it seems like a pretty quick and easy fix.
NICEGYPT said:
XAA wifi calling is working fine with me.
Click to expand...
Click to collapse
Will you describe your process of firmware flashing to get this result please?
Also, out of the following which do you have?:
Samsung built in Caller ID/Spam
Samsung Cloud
WiFi calling works for Verizon, correct?
Hardwired_KS said:
@KidJoe
I did this on My device, Unlocked to VZW. It worked.
Wifi calling is located in Settings>Connections>Advanced Calling. Make sure you have a proper cel signal when you activate it.
Notes:
- As OP mentioned, Use the Home CS file and all of your existing settings, apps, etc won't get wiped.
- I was surprised that there were only like 6-7 crapps that came from Verizon. Mostly Yahoo mail and a couple games. The Verizon "Security & Privacy" and Cloud apps cannot be removed. I kept the voicemail and caller ID apps.
Otherwise, it seems like a pretty quick and easy fix.
Click to expand...
Click to collapse
that is after flashing the rom in the OP though, right? (I mean that is how it is on my VZW branded Note8, GS9 and Gs8. Yes I have many phones.. don't ask)
I was reading NICEGYPT's post as if it was done on the unlocked without flashing which is why I asked.
Question though. Since I did flash my VZW branded GS8 with the unlocked/unbranded to get the Oreo beta, and back .. for that phone there were more steps than just flashing the rom... Requiring a factory binary and other home csc file, etc. That doesn't appear to be needed non the note 9, is that correctly?
trebills said:
Will you describe your process of firmware flashing to get this result please?
Also, out of the following which do you have?:
Samsung built in Caller ID/Spam
Samsung Cloud
WiFi calling works for Verizon, correct?
Click to expand...
Click to collapse
Sorry man! I over looked the wifi calling. I don't have wifi calling at all. But I have rest you mentioned working fine. Caller ID, Samsung Cloud, Samsung visual voicemail.
for samsung cloud, cant you just install it?
https://www.apkmirror.com/apk/samsung-electronics-co-ltd/samsung-cloud/samsung-cloud-2-2-08-release/
Guys, Samsung Cloud is already there but hidden, to get it to show, do this:
use QuickShortCutMaker to run Samsung Cloud, then within the app, choose "Show Samsung Cloud Icon" which will show with the apps.
Yazen
Is there a way to get Samsung caller id/spam feature?
thank you for posting this! Will definitely try tonight on my unlocked Note 9 from BB, I did not realize that ordering the unlocked would disable wifi-calling with verizon.
Question: Will flashing the verizon firmware over my unlocked note 9 enable sending SMS via Wifi using the Android Messages app?
I'll be going on travel overseas, Wifi-calling is definitely nessasary for me, and sending SMS via Wifi using the stock android texting app would be icing on the cake
I also have US Unlocked from BB but on Verizon network.
Just to make sure that flashing this Firmware does not require OEM Unlock and won't disable Knox ?
hello
you don't need to reflash the firmware N960U and N960U1 are multi CSC so :
save all your data
- Power off the device
- remove the sim tray.
- Go to recovery , HOLD home ( or bixby button ) + Volume up together , and power up
- In recovery , chose factory reset .. This will give a warning and then reset everything
- Choose power off , in the recovery and insert sim tray .. you should do this before booting up as your CSC will be configured when you will start
- Power on the phone , wait and . then chose restart to system now when asked
- wait and after reboot , your CSC have change according the sim tray
some peoples do this without remouving the sim tray
post 4 : https://forum.xda-developers.com/galaxy-note-9/how-to/n960f-n960n-n960u-n960u1-n960w-n9600-t3833721 (Verizon CSC is VZW)
no problems with OEM and knox
regards
yakapa40 said:
hello
you don't need to reflash the firmware N960U and N960U1 are multi CSC so :
save all your data
- Power off the device
- remove the sim tray.
- Go to recovery , HOLD home ( or bixby button ) + Volume up together , and power up
- In recovery , chose factory reset .. This will give a warning and then reset everything
- Choose power off , in the recovery and insert sim tray .. you should do this before booting up as your CSC will be configured when you will start
- Power on the phone , wait and . then chose restart to system now when asked
- wait and after reboot , your CSC have change according the sim tray
some peoples do this without remouving the sim tray
post 4 : https://forum.xda-developers.com/galaxy-note-9/how-to/n960f-n960n-n960u-n960u1-n960w-n9600-t3833721 (Verizon CSC is VZW)
no problems with OEM and knox
regards
Click to expand...
Click to collapse
Great, thanks! And what if I want to return back to the carrier-independed version?
yellowxboy said:
thank you for posting this! Will definitely try tonight on my unlocked Note 9 from BB, I did not realize that ordering the unlocked would disable wifi-calling with verizon.
Question: Will flashing the verizon firmware over my unlocked note 9 enable sending SMS via Wifi using the Android Messages app?
I'll be going on travel overseas, Wifi-calling is definitely nessasary for me, and sending SMS via Wifi using the stock android texting app would be icing on the cake
Click to expand...
Click to collapse
Yes, it will be enabled. My text messages go through wifi when I am at a location where there are no cellphone signals but wi-fi.
Yazen

Advice for newbie needed

Hi, I've owned a Galaxy Note 9 (SM-N960F/DS, Dutch unbranded) for almost two years now.
I've always kept it at Android 8 as I didn't want to lose call recording, but I didn't know about the option to actually block updates so I just ignored the notifications.
Unfortunately my phone got updated recently (my fault, niece left alone with phone to play games on, wanted to help aunt... stupid mistake on my part).
I'm at Android 10 September 2020 update now.
I've been looking into downgrading (didn't work because apparently bootloader is updated) and changing csc without rooting (tried using *#272*IMEI# but that didn't do anything, after that tried the ChangeCSC Free Tool from this post https://forum.xda-developers.com/showpost.php?p=82875851&postcount=181 but I couldn't get that to work either as Themes doesn't show 'Try it out' but only offers Delete, Update or Buy).
What is the best way to get call recording back on my phone?
I'm not averse to rooting my phone if I have to, but I don't know where to start and I don't have the funds to buy a new one so bricking it is something I'd like to avoid.
If you need more info, please let me know.
Try custom rom may be is the best solution.
Yep Dr's ROM
Best one
Call recording working 100%
custom rom will trip knox, and samsung pass and others samsung applications will not work.
Thank you all!
Husband looked at the Dr's ROM and did whatever he had to do to get it to work, and I have call recording again

Question remove as much AT &T bloat while preserving Wi-Fi calling and VVM on locked device??

I'm about to receive my first Galaxy device (a locked US S21 Ultra sold by AT&T) after being a Pixel/Nexus user for many years. I'd like to remove as much bloatware as possible while preserving features such as WiFi calling, Visual Voice Mail, etc. If I replace the 998U firmware with 998U1, does that result in no Wi-Fi calling? (idk why AT&T says Wi-Fi calling isn't supported on unlocked devices) Can I simply reinstall some .apk to enable those features after flashing the debloated firmware? Can AT&T userdata be flashed with a U1 firmware to preserve those features? Sorry for the noob questions, I'm going to read up on flashing Samsung devices and using Odin, but I'm trying to get an idea of what I need to do to debloat my phone while preserving those features (Wi-Fi calling is an absolute must, if it requires AT&T bloatware installed I'll just soldier on with that crap using up my storage...) Thanks for your time.
WiFi calling and HD Voice (AT&T version of VoLTE) work fine on my unlocked S21U.
There is no VVM. (you can sort of do it using Google Voice).
You should be able disable most AT&T stuff, and further if you wish use adb to remove.
uicnren said:
WiFi calling and HD Voice (AT&T version of VoLTE) work fine on my unlocked S21U.
There is no VVM. (you can sort of do it using Google Voice).
You should be able disable most AT&T stuff, and further if you wish use adb to remove.
Click to expand...
Click to collapse
VVM working great on my unlocked S21U on ATT
A lot of AT&T redundant junk that does nothing except use resources.
Disable carrier feedback (Google and Samsung too). AT&T Updates as well as it constantly runs in the background.
I use Karma Firewall and PD MDM to lock my AY&T 10+ down... and take out the trash.
Home - Package Disabler
The only NON-root solution that let’s you disable any unwanted packages that come pre-installed / installed with your phone / tablet.
www.packagedisabler.com
This package disabler* lets you set a widget to toggle checked apks on/off. I use it to toogle Google Play Services and Playstore on if I need them. This both protects me and greatly reduces battery usage. GPlayS needs to be on for Gmail to load. I am $ick of Google...
*choose the appropriate version. Been using this one for years, zero issues and no Playstore to screw it up. Low resource and battery consumption. Can be firewall blocked after setup.
You can try flash U1 firmware
S21 Ultra 5G SM-G998U1: https://samfw.com/firmware/SM-G998U1/XAA/G998U1UEU2AUB6
This is lastest version. almost bloatware will removed
How can i go back to ATT firmware from U1? I had flashed from ATT to U1 but 5G will not work for some reason. I was wanting to try to got back to stock to see if it works on U.
gho5t82 said:
How can i go back to ATT firmware from U1? I had flashed from ATT to U1 but 5G will not work for some reason. I was wanting to try to got back to stock to see if it works on U.
Click to expand...
Click to collapse
try flash back to U version
thacounty said:
VVM working great on my unlocked S21U on ATT
Click to expand...
Click to collapse
Curious why it's not working on mine. It installed from my OnePlus Pro 8 backup but when I opened it on the S21 Ultra it said not compatible. Guess I have to do some digging.
Edit: Couldn't find it in the store, so downloaded latest from apkmirror, installed and it's working now. Cheers
derausgewanderte said:
Curious why it's not working on mine. It installed from my OnePlus Pro 8 backup but when I opened it on the S21 Ultra it said not compatible. Guess I have to do some digging.
Edit: Couldn't find it in the store, so downloaded latest from apkmirror, installed and it's working now. Cheers
Click to expand...
Click to collapse
Glad it's working. I got mine to show up by calling my voicemail once and logging in. Once I did that, the app showed up.

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