Remote SIM Access Profile (rSAP)? - Samsung Galaxy Note 9 Questions & Answers

rSAP allows really cool integration with some cars.
Anyone knows if Note 9 supports it out of the box?

Just got the note 9 dual sim phone and it looks like there is no rSAP !!!... Going to miss this feature badly.

vizier said:
rSAP allows really cool integration with some cars.
Anyone knows if Note 9 supports it out of the box?
Click to expand...
Click to collapse
robinkings said:
Just got the note 9 dual sim phone and it looks like there is no rSAP !!!... Going to miss this feature badly.
Click to expand...
Click to collapse
It does support it. Connects automatically to car! So nice
Only single sim supports this feature. This annoys me

Actually Note 9 support rSAP
Hi,
I was asking the same question after getting my new Note 9 dual sim.
First time when I connected to my car system (RNS 510 PREMIUM) I was very disappointed that it was not working as my previous phone (Note 4), after trying to finding on the internet if Note 9 is supporting the rSAP I was concluding that is not working on Samsung phones with dual sim.
Anyway, it was a nice surprise when he actually connected to my car system and I notice that I can make calls directly from the car system buttons and now is two days past and still working without any issues.
What happens exactly I can't be sure but it start working after one security update of the phone.
Hope this information will help somehow.
All the best!

Ghenadie1982 said:
Hi,
I was asking the same question after getting my new Note 9 dual sim.
First time when I connected to my car system (RNS 510 PREMIUM) I was very disappointed that it was not working as my previous phone (Note 4), after trying to finding on the internet if Note 9 is supporting the rSAP I was concluding that is not working on Samsung phones with dual sim.
Anyway, it was a nice surprise when he actually connected to my car system and I notice that I can make calls directly from the car system buttons and now is two days past and still working without any issues.
What happens exactly I can't be sure but it start working after one security update of the phone.
Hope this information will help somehow.
All the best!
Click to expand...
Click to collapse
So you're saying rSAP works with your dual sim note 9? What model? N9600 or N960F?
And what update did you get that made this possible?

lawtq said:
So you're saying rSAP works with your dual sim note 9? What model? N9600 or N960F?
And what update did you get that made this possible?
Click to expand...
Click to collapse
Hope the info can be helpful.
Model number SM-960F
SE for Android status
Enforcing
SEPF_SM-N960F_8.1.0_0004
Mon Aug 27 21:23:00 2018
Knox version
Knox 3.2
Knox API level 26
TIMA 4.1.0
Service provider SW ver.
SAOMC_SM-N960F_OXM_ROM_OO_0016
25955134a90d7ece
ROM/ROM,ROM/ROM
Security software version
MDF v3.1 Release 3
WLAN v1.0 Release 2
VPN PP-MOD v2.1 Release 1.0
ASKS v1.4 Release 180410
ADP v1.0 Release 180525
FIPS BoringSSL v1.2.1
FIPS SKC v1.9
FIPS SCrypto v2.2
FIPS FMP v1.4
SMR Sep-2018 Release 1
Android security patch level
1 September 2018
Maybe I don't understand what is exactly rSAP but as I mentioned earlier, before the update it was now way to make a call directly from the buttons on the steering wheel or from the media system buttons and something else is that on the car media system display now is showing the strength of the mobile network wat wasn't before.
Sorry for the confusion if I misunderstood the mining of rSAP.

rSAP
rSAP is only necessary if your car needs data Connection from your phone! Only bluetooth and you can still make phonecalls! rSAP needed for google earth, news, weather...

Related

[Q] Experiences with AA and Dual SIM Phones

Hi all !
Does anyone of you also have issues when connecting a Dual SIM phone to AA and trying to place & receive calls ?
In my case - when i connect my OnePlus X (CM13 Custom ROM), AA and the Phone crashes if i do not set a default SIM for outgoing calls in the Phones SIM settings (Option "ask before each call").
I couldn´t try with Stock ROM because this caused Bluetooth Errors with the Cars Media System (no Contact Sync)
Headunit is a SEAT Media System Plus (Alhambra 7N 2016)
Hello fellow OpX user.
I've not got a secondary SIM so can't answer your question. However we are both using the same phone and head unit so I was wondering what your experience with AA is like?
I'm on stock and although it works well I do seem to get constant disconnects, especially if I'm travelling on a specific section of road I can guarantee it'll disconnect there.
Do you have issues this issue on cm13?
Oh and I fixed the Bluetooth contacts issue with an app called Bluetooth Phonebook. Just the HU can't read text messages
I think it is because of your ROM. I also use a custom CM13 Rom (Mokee, on a nubia z7 mini) and for me it works. The disadvantage however, is that I have to select which sim to use on the phone. So it does not offer me a choice on the headunit but only on the phone itself. If I do not select a sim on the phone, the call simply does not go trough.
scrads said:
Hello fellow OpX user.
I've not got a secondary SIM so can't answer your question. However we are both using the same phone and head unit so I was wondering what your experience with AA is like?
I'm on stock and although it works well I do seem to get constant disconnects, especially if I'm travelling on a specific section of road I can guarantee it'll disconnect there.
Do you have issues this issue on cm13?
Oh and I fixed the Bluetooth contacts issue with an app called Bluetooth Phonebook. Just the HU can't read text messages
Click to expand...
Click to collapse
Hi !
I'm running Sultans CM13 Rom for almost 3 months now and it's working perfectly well.
I have nearly no disconnects in AA and Bluetooth is also stable (phonebook, messages...)
The Problem i described in my first post was caused by my flip cover - when it's closed while connected to Bluetooth handsfree and i place a call the phone APP crashes - seems to be a common bug caused by proximity Sensor.
-> not ROM related..
At least for me switching to a custom Rom was the best decision....
Sent from my ONE E1003 using XDA-Developers mobile app
error23 said:
Hi !
I'm running Sultans CM13 Rom for almost 3 months now and it's working perfectly well.
I have nearly no disconnects in AA and Bluetooth is also stable (phonebook, messages...)
The Problem i described in my first post was caused by my flip cover - when it's closed while connected to Bluetooth handsfree and i place a call the phone APP crashes - seems to be a common bug caused by proximity Sensor.
-> not ROM related..
At least for me switching to a custom Rom was the best decision....
Sent from my ONE E1003 using XDA-Developers mobile app
Click to expand...
Click to collapse
Cheers @error23 that's interesting that you have no issues on Sultan's ROM. I'm beginning to suspect my issues lie with either GPS signal (but I think that'd be more random) or when switching between certain types of Cell Masts as it's always in particular locations or routes.
Out of interest, which country are you in and do you know which bands your network uses for LTE? I'm in the UK on o2 which only uses band 20 for LTE.
At the moment I'm running the OnePlus marshmallow community build.
Thanks
scrads said:
Cheers @error23 that's interesting that you have no issues on Sultan's ROM. I'm beginning to suspect my issues lie with either GPS signal (but I think that'd be more random) or when switching between certain types of Cell Masts as it's always in particular locations or routes.
Out of interest, which country are you in and do you know which bands your network uses for LTE? I'm in the UK on o2 which only uses band 20 for LTE.
At the moment I'm running the OnePlus marshmallow community build.
Thanks
Click to expand...
Click to collapse
I'm in austria on the 3 network - using LTE Band 3 (1800MHz) and 7 (2600MHz). I have no disconnects when changing cells, even not when it falls back to 3G or national roaming (which is 2G)
But - as mentioned - OOS didn't run stable with AA for me and i expect its Bluetooth related, but who knows
Sent from my ONE E1003 using XDA-Developers mobile app
Guys, how did you solve that dual sim select when calling using Android Auto?
wizzardsk said:
Guys, how did you solve that dual sim select when calling using Android Auto?
Click to expand...
Click to collapse
I am afraid there is no real solution. I still have to select the Sim card I want to use on my phone. It looks like Android Auto is not really ready for dual sim use. When using voice dialling however, it once asked me which sim I wanted to use. To this day, I am still waiting for it to happen a second time since it looks like a very useful feature.
I am using a Moto Z Play with 2 SIMs. The issue I have is that I am able to make phone calls from Android Auto ONLY if the SIM being used to make the call is the same SIM which is being used for data at that point in time.
I am unable to make the call if I use SIM 1 as my default Data SIM and SIM 2 as my Default Voice SIM and vice versa - the error I get is "Network not available".
I thing this is a serious issue that needs to be addressed.
Incoming calls seem to work fine though.
Anybody with similar experiences?
Best,
Krish
Yeap, that's me, unfortunately. I am waiting for a possible fix by Google, because it is rather uncomfort having to disable the 2nd SIM each time I enter my vehicle.
krishsreedharan said:
I am using a Moto Z Play with 2 SIMs. The issue I have is that I am able to make phone calls from Android Auto ONLY if the SIM being used to make the call is the same SIM which is being used for data at that point in time.
I am unable to make the call if I use SIM 1 as my default Data SIM and SIM 2 as my Default Voice SIM and vice versa - the error I get is "Network not available".
I thing this is a serious issue that needs to be addressed.
Incoming calls seem to work fine though.
Anybody with similar experiences?
Best,
Krish
Click to expand...
Click to collapse
I am using Xiaomi Mi5 Global edition running Android 6.0.1 on MIUI version 8.1.2 Stable. Android Auto version running: 2.2.710804-release. Exactly same issue as yours.
My default SIM setup: SIM 1 for data and SIM 2 for calls and text. When using only one SIM for both calls and data, Android Auto works fine. However, with my dual sim setup, I get "Network not available" when I try to make calls. Incoming calls and texts are working fine though...
Hello,
Oneplus2 Oos 3.5.8
After some test I confirm that using same default SIM for both call and data is needed to use outgoing call in AA. If not (or if call setting is 'ask everytime'), I got the Network not found message.
Yesterday I did a real quick test with the app Dual Sim Selector Pro using basic settings. It did work, even if I was very surprised. Later I bought the app and start to configure my phone.
This morning, it was no longer working.
I was going to give up and I read this message about the android setting needed to be similar in data and call.
IT SEEMS TO WORK!!!!
My setup:
SIM 1 is for private matter and I use mostly this one for data
SIM 2 is work related
In Android settings:
Default call: SIM 1 (my dream setup was to use SIM 2 but w/e)
Default SMS: SIM 2 (mayble i'll have problem to use sms app but I dont use it while driving)
Default Data: SIM 1
In Dual Sim Selector pro:
Main screen: activated, SIM 1 as main
Automatic select screen: activated, and in group tab I've go my works groups with SIM2 and private groups with SIM1.
When using Android Auto, the calls are made with the right sim!!!!!
Anyone interested in a dual sim add-on for AA?
Hi everyone!
It is quite a while ago that someone last posted in this thread. So far I was reading in this forum regularly but did not post anything yet
Since I use a dual sim phone (Samsung Galaxy S10) with my private and my business sim card running in parallel I also was facing problems when dialing while driving with Android Auto - in phone screen mode, but I will get a new car with support for projection to in-dash head unit soon . AA does not allow me to select the sim card to dial with for the next call when Android Auto UI is shown.
This was anoying me so much that I started to develop a simple Android app which allows my to select the right sim card easily while driving. It is a kind of unofficial add-on for Android Auto. It is doing the job well now but is only tested on my personal device.
Are there other dual sim phone users in the XDA community that are interested in using / testing my helper / add-on app? If so I would try to publish it in Google Play Store as a public beta. It is free! Please give your brief feedback in this thread.
Regards, Gero
Hi, I'm a 2sim user with a opel mokka car.
Don't know if my AA is up to date enough but if you want, I can du a try. Write me in PM if you want
pippoparecchio said:
Hi, I'm a 2sim user with a opel mokka car.
Don't know if my AA is up to date enough but if you want, I can du a try. Write me in PM if you want
Click to expand...
Click to collapse
Hi, thanks for answering. Currently I am stuggling with getting the app approved by Google for publishing on Google Play Store. When it will be publically available for download I will invite you for beta testing
Cheers, Gero
geromax said:
Hi everyone!
It is quite a while ago that someone last posted in this thread. So far I was reading in this forum regularly but did not post anything yet
Since I use a dual sim phone (Samsung Galaxy S10) with my private and my business sim card running in parallel I also was facing problems when dialing while driving with Android Auto - in phone screen mode, but I will get a new car with support for projection to in-dash head unit soon . AA does not allow me to select the sim card to dial with for the next call when Android Auto UI is shown.
This was anoying me so much that I started to develop a simple Android app which allows my to select the right sim card easily while driving. It is a kind of unofficial add-on for Android Auto. It is doing the job well now but is only tested on my personal device.
Are there other dual sim phone users in the XDA community that are interested in using / testing my helper / add-on app? If so I would try to publish it in Google Play Store as a public beta. It is free! Please give your brief feedback in this thread.
Regards, Gero
Click to expand...
Click to collapse
It sounds great~
Dual sim dial is a problem to me as well.
I want to try that good app if I can!
My email is [email protected].
Thanks a lot!

Does anybody know which versions of the Mate 10 Pro ROM/Firmware support wifi calling

Trying to get my mate 10 pro working on AT&T in the USA along with my LG Smartwatch. AT&T branded works great but still beta software so Android Pay won't work (which I want to use). Does anybody know of another version of the Mate 10 pro firmware that supports wifi-calling/enhanced LTE? My original firmware was C636 and that doesn't. If I can find another version that supports wifi calling, i can rebrand to that version - thanks!
Hi. I have the Mate 10 Pro model BLA-L29 - C432 and VoLTE works for me on Orange Romania
Flashed to the same branding and am experiencing the same issues as you.
We'll probably have to wait a while for a newer update to fix them.
TGUY25 said:
Trying to get my mate 10 pro working on AT&T in the USA along with my LG Smartwatch. AT&T branded works great but still beta software so Android Pay won't work (which I want to use). Does anybody know of another version of the Mate 10 pro firmware that supports wifi-calling/enhanced LTE? My original firmware was C636 and that doesn't. If I can find another version that supports wifi calling, i can rebrand to that version - thanks!
Click to expand...
Click to collapse
AT&T branded is the only way. No other version supports the AT&T features.
The good news is, I'll have a new AT&T build on Funky shortly. No idea if it will fix your issues, but it's from December 9.
Awesome! I will update as soon as I see it! thanks
Got it installed. Still no joy on Android Pay (saying phone is rooted or beta software). I didn't notice anything different - once weird thing is that you can't delete digits from the dialer - a delete key is missing . Also weird that the phone boots with a "mobile data is off" message and you have to manually turn it on. Still can't pick which sim you want to default for calls or data (i rebranded a C636 Asia dual sim phone) - have to figure that out before my next trip to Asia (and using my 2nd SIM) - good 4G signal. I got wifi calling to work (at least the wifi calling notification is showing on the notification bar) and under "wireless & networks, wifi calling" it shows it on but under wireless and networks, mobile network under sim 1 is show it's disabled (guess that's still a software issue) and other AT&T features are working fine.
Any idea how to switch the primary sim for data?
Thanks for sharing the firmware updates - I'll install 'em as soon as you load 'em
hi guys
could you guys tell me which firmware is for ATT or Tmobile, because my mate 10 pro doesnt have wifi calling.
Thanks guys
BLA-A09 8.0.0.56(C07log) is the latest version (from funkyhuawei)
Whixh is the right hardware version for using / rebranding on AT&T
BLA-A09 8.0.0.56(C07log)
This is for AT&T
I meant the hardware. Are there different hardware versions or can they all be rebranded anyway

Note 8 Android Pie Quirks

Ok.. so i got my pie update with One UI last night. COOL.. i love it.. laggy at first, after full reset, it works just fine, smooth and fast.. snappy. battery life is great.. However, after using it for awhile and after restoring backup, i have some quirks..
1. Samsung now do not allow SD Card to be used together with both sim cards.. previously i have been using dual sim and SD card via an adapter.. now it just says "SIM Card Tray Slot Problem. There seems to be something in your SIM Card tray slot that doesnt belong there. Check it and try again".
I saw somewhere in this forum, that there is a method that can fix this issue, but i require root access.. DAMN..
2. Call recorders is disabled for third party apps.
Is there a native call recorder in the note 8 android 9? like when i use note 2, i just need to tweak the CSC file and the native call recorder will come out. Is it still present?
If the native call recorder is still present, i am very willing to root my phone.
Samsung pay is just something that i would love to have, but not a must. Call recorder is important.
I travel often, and frequently receive instructions from bosses or customers on what they want, and it is often lengthy.. without a pen and paper, and phone stuck to my ear, i rely on call recorders to record what they want, and then when i am back in office or hotel room, or somewhere quiet, i can replay what they want and work on a proposal to them or quotation. This is important to me and the reason i forked out to buy pro version of the call recorder app i was using previously.
my question is, if some kind hearted person can assist me, is as follows:
1. Is android call recorder still present? will tweaking the CSC file or installing an xposed module bring it back? (thats how i did it on my very old note 2)
2. If i root my note 8, secure folders wont work. Samsung Pay wont work. will masking root allow samsung pay? if not, will i still be able to use samsung pay on my Samsung Gear Sport instead.. currently i use samsung pay mainly on my samsung gear sport anyway.
Yup call recording is still there. I've installed HadesRom and seems to enable it.
-Yes, if you root your phone you'll lose Samsung Pay and Secure Folder forever since it triggers Knox. I have no idea if you can still be able to use Pay with your smartwatch.
galaxynote2 said:
Yup call recording is still there. I've installed HadesRom and seems to enable it.
-Yes, if you root your phone you'll lose Samsung Pay and Secure Folder forever since it triggers Knox. I have no idea if you can still be able to use Pay with your smartwatch.
Click to expand...
Click to collapse
Tqvm.. Much appreciated.
Sent from my SM-N950F using Tapatalk
Holy moly, I should have checked before updating. Where is the workaround to use both sims and the micro sd card?
Do I need to root now? Didn't have the need to do it until now
Dang!
sergioka said:
Holy moly, I should have checked before updating. Where is the workaround to use both sims and the micro sd card?
Do I need to root now? Didn't have the need to do it until now
Dang!
Click to expand...
Click to collapse
Yeah, you would probably have to root your device and mod a file in order to get that feature back.
iceepyon said:
Yeah, you would probably have to root your device and mod a file in order to get that feature back.
Click to expand...
Click to collapse
Thx for the info. Do you have a link to a tutorial? Haven't found it yet
thx in advance
iceepyon said:
Yeah, you would probably have to root your device and mod a file in order to get that feature back.
Click to expand...
Click to collapse
Hi
Any chance to make this feature work without root??
I just lost my secure folders and spay because of this stupid feature.
Went to install custom rom to get the dual sim and sd card to work..
And got call recording back as well..
I installed dr ketans rom.
Sent from my SM-N950F using Tapatalk
vash_h said:
I just lost my secure folders and spay because of this stupid feature.
I installed dr ketans rom.
Click to expand...
Click to collapse
You can use Solid Explorer to make encrypted folders (with fingerprint unlock if you want). You can even make the secure folders on your sdcard.
Is root now available for Pie? Last time I checked, if you have Snapdragon and upgraded to Pie you lost root since it's bootloader 5 and the highest bootloader that has root is 3. If you have an Exynos, then a Knox is tripped and you can never have Samsung pay again.
Sent from my Pixel 3 XL
You don't need to root your phone. Just change your region to THL or INS or XXV, it'll give you native call recording with SPay. I've changed my CSC from XSG/CAC/XSG to THL/CAC/XSG and call recorder is working great.
Change your CSC: https://forum.xda-developers.com/galaxy-note-8/how-to/pie-call-recording-wip-t3905737
Elsalawi said:
Hi
Any chance to make this feature work without root??
Click to expand...
Click to collapse
I guess you could install another regions OS onto your device. Just make sure that the model numbers match.
Eudeferrer said:
Is root now available for Pie? Last time I checked, if you have Snapdragon and upgraded to Pie you lost root since it's bootloader 5 and the highest bootloader that has root is 3. If you have an Exynos, then a Knox is tripped and you can never have Samsung pay again.
Sent from my Pixel 3 XL
Click to expand...
Click to collapse
Still not for Snapdragon, as far as I know, but it is for Exynos. I've seen some custom ROMs claiming to have Samsung Pay working, but I can't verify that, as I don't use or even care about Samsung Pay, despite it being used and supported in my country.
Hello Guys, I have Unlocked Tmobile Note 8 the N950U version. Anyone knows when the Pie Update comes up? Im hating Tmobile right now. My girl have an S8+ from Claro a International model and today update to Pie
iceepyon said:
I guess you could install another regions OS onto your device. Just make sure that the model numbers match.
Click to expand...
Click to collapse
Can you explain more?
Currently I'm in Saudi Arabia and my device updated to Pie, which region have Pie version with 2 sim and SD card working together.
Thanks
Elsalawi said:
Can you explain more?
Currently I'm in Saudi Arabia and my device updated to Pie, which region have Pie version with 2 sim and SD card working together.
Thanks
Click to expand...
Click to collapse
There isn't any pie firmware that 2 sims and sd card option will work. Apparently Samsung put in a check for that and disabled it.
You'll have to go back to oreo for now.
Or root your phone (Warning: this will remove Samsung pay, secure folder for good) and change out a service.jar file.
vash_h said:
Ok.. so i got my pie update with One UI last night. COOL.. i love it.. laggy at first, after full reset, it works just fine, smooth and fast.. snappy. battery life is great.. However, after using it for awhile and after restoring backup, i have some quirks..
1. Samsung now do not allow SD Card to be used together with both sim cards.. previously i have been using dual sim and SD card via an adapter.. now it just says "SIM Card Tray Slot Problem. There seems to be something in your SIM Card tray slot that doesnt belong there. Check it and try again".
I saw somewhere in this forum, that there is a method that can fix this issue, but i require root access.. DAMN..
2. Call recorders is disabled for third party apps.
Is there a native call recorder in the note 8 android 9? like when i use note 2, i just need to tweak the CSC file and the native call recorder will come out. Is it still present?
If the native call recorder is still present, i am very willing to root my phone.
Samsung pay is just something that i would love to have, but not a must. Call recorder is important.
I travel often, and frequently receive instructions from bosses or customers on what they want, and it is often lengthy.. without a pen and paper, and phone stuck to my ear, i rely on call recorders to record what they want, and then when i am back in office or hotel room, or somewhere quiet, i can replay what they want and work on a proposal to them or quotation. This is important to me and the reason i forked out to buy pro version of the call recorder app i was using previously.
my question is, if some kind hearted person can assist me, is as follows:
1. Is android call recorder still present? will tweaking the CSC file or installing an xposed module bring it back? (thats how i did it on my very old note 2)
2. If i root my note 8, secure folders wont work. Samsung Pay wont work. will masking root allow samsung pay? if not, will i still be able to use samsung pay on my Samsung Gear Sport instead.. currently i use samsung pay mainly on my samsung gear sport anyway.
Click to expand...
Click to collapse
Android pie for note 8 comes with its own call recorder. To activate it go to call settings. That option is right in front if you.
The SD card problem is still there I think. I have the same problem.
SujeewaSampath said:
Android pie for note 8 comes with its own call recorder. To activate it go to call settings. That option is right in front if you.
The SD card problem is still there I think. I have the same problem.
Click to expand...
Click to collapse
Here we go again. It's not there. It's controlled by csc. Mine is in xme, which doesn't allow call recording.
Anyhow I flashed custom Rom, got native call recording to work (still don't appear in the settings though) and samsung pay to work via my gear samsung gear sport.
And my Dual SIM with sdcard works now too.
Sent from my SM-N950F using Tapatalk
Call recording is present, but you will loose hybrid sim as Samsung has blocked it in PIE Update.
After updating to PIE, i'm note able to use hybrid sim slot on my Galaxy Note 8. When i insert hybrid in Galaxy note 8 Pie, POPUP appears says sim card tray slot problem, but phone has read both behind and memory card. Pop does not get disable and stuck on the screen. Forcefully i need to remove the slot and reverse back to 1 sim and MC
dineshdotcom2000 said:
Call recording is present, but you will loose hybrid sim as Samsung has blocked it in PIE Update.
After updating to PIE, i'm note able to use hybrid sim slot on my Galaxy Note 8. When i insert hybrid in Galaxy note 8 Pie, POPUP appears says sim card tray slot problem, but phone has read both behind and memory card. Pop does not get disable and stuck on the screen. Forcefully i need to remove the slot and reverse back to 1 sim and MC
Click to expand...
Click to collapse
Call recording is locked by csc. Been this way since samsung note2 or even before. You may have it due to your csc does not lock it.
As for dual sim and sdcard, yeah that's true. You'll need to root your phone or install a custom rom.
Sent from my SM-N950F using Tapatalk

Galaxy Tab A 8.4 (2020) T-Mobile Version - Using Google Fi Data Only SIM

I've purchased the new Galaxy Tab A 8.4 2020 directly from Samsung. There are only carrier-locked versions, but as Google Fi user, I picked the T-Mobile version as likely the 'most compatible' with Fi, which uses T-Mobile/Sprint for most of its connectivity.
As I don't want to pay for another Fi account, I ordered (for free) a data-only SIM from Google - it works perfectly. Normally, I run off of wifi only, turning Airplane Mode on first, then turning on wifi. I've traveled with it outside the house once, and used the data SIM very nicely. As a Fi user, I can also make calls from it, over data, wifi or LTE.
Some notes on the tablet:
Good:
1. It is fast enough for all my needs, and with a micro SD in addition to the SIM, set as additional storage, I have plenty of room for my needs. NOTE: I don't play games, so I can't comment on game performance.
2. Face recognition works well as long as there is enough light - in dim light, you will have to use PIN/Password, as there is no fingerprint reader.
3. I was able to source a case via Amazon, there are a number of choices.
4. USB C
Not So Good:
1. No fingerprint reader.
2. No ambient light sensor, so you will be adjusting lighting manually. There are apps which use the camera for this, but then you will lose face recognition unlocking.
3. Samsung's Usual Bloatware: I use virtually none of it, not even Touchwiz, as I prefer Nova.
4. Although the case has magnets, they won't turn off the screen when the cover is closed, you will have to turn it off manually or wait for it to timeout.
5. Running Android 9, and nothing available as to when, if ever, it will get an upgrade.
6. Security patch is Feb 1, 2020 and no idea if/when it will get another.
Using the XDA app.. it identifies as an AT&T Samsung Galaxy Note 3 !
All in all, I judge this to be an 'OK' but not great effort from Samsung for $264. For a few more bucks, it could have been a lot better. If the Lenovo new M8 had not been out of stock, I might have bought it instead and saved $130.
You can find the T-Mobile version at: https://www.samsung.com/us/mobile/t...-8-4-2020-32gb-mocha-t-mobile-sm-t307uznatmb/
regards, John
Did some Geekbench 5 testing, comparing it against my Huawei Mediapad M3 running an in-process version of Lineage 15.
The M3 runs Kirin 950, 4 cores @ 1.8 and 4 cores @ 2.3 The Tab A runs an ARMv8, 6 cores @ 1.59 and 2 cores @ 1.77
The M3 won the CPU test, single core 351 multi core 1267, with the Tab A at single core 271 and multi core 965
The M3 has a Mali T880, and the Tab A has a newer Mali G71 graphics engine.
Trying to run the Compute test (Vucan), the M3 failed to run a number of tests, giving it a very low 105, while the Tab A got a 774
However, until the M3 started failing to run tests, and having started both at the same time, they were literally neck-in-neck for speed. The supposed advantage of the G71 is 20% reduction in power use.
I will run the Huawei numbers again after the Lineage ROM is more stable.
Update Received! 6/15/2020
Received update this morning - I was hoping for update to Android 10, but this one was to May Security update, May kernel update. New build number is PPR1.180610.011.T307USQS2ATE3
I am happy to see an indication that this tablet is going to get updates!
I'm not yet noting any differences from before the update.
At&T Samsung Tab A 8.4 SM-T307U
I wanted to buy unlock version of this tablet from samsung but unfortunately they only sell carrier version.
I have a T-Mobile free line that wasn't in use so thought i should buy this tablet use it in my car for music, GPS, OBDII etc. I didn't buy the T-mobile version because the free line that i have is for cellphone and If i would buy T-mobile version of this tablet, they would ask me to change the line to data only and wouldn't be unlimited anymore. So i went with AT&T version and was cheaper also, AT&T unlocked it for me in about 48hrs after request.
It works fine with T-mobile and was hoping it would switch the firmware to T-mobile once i put the sim like it does with Samsung phone that it initializes the sim and reboots with that carrier software but the Tablet doesn't do that. I even flash T-Mobile Firmware, it flashes successfully but still AT&T stuff is on the tablet. I was able to uninstall/disable most of the At&t bloat but not all. So came to XDA to find root or custom firmware but unfortunately nothing yet.
Update - Occasional Freezing
I use the Brave browser, and on this Tab A, I occasionally run into the screen freezing for no apparent reason. It eventually unfreeze, but is disconcerting.
OP, how did you manage to get the SIM card to authenticate on your Google Fi account? I purchased this tablet to use for work as I am an Uber driver and tried to authenticate the device with a data-only SIM card. The device manages to use 3g and technically works without authentication through the Fi app but is worthlessly slow this way. I can't rely on a 3g connection for the Uber driver application. When I try to authenticate the device using the Fi app, it takes awhile before stating the device isn't compatible with Fi.
Did you authenticate the app with a different device and then insert it into the tab A 8.4 2020? Just to confirm ahead of time, I too have the T-Mobile version of the tablet.
Thank you if you get this and have the time to explain how you managed to make the device work!
HateToConform said:
OP, how did you manage to get the SIM card to authenticate on your Google Fi account? I purchased this tablet to use for work as I am an Uber driver and tried to authenticate the device with a data-only SIM card. The device manages to use 3g and technically works without authentication through the Fi app but is worthlessly slow this way. I can't rely on a 3g connection for the Uber driver application. When I try to authenticate the device using the Fi app, it takes awhile before stating the device isn't compatible with Fi.
Did you authenticate the app with a different device and then insert it into the tab A 8.4 2020? Just to confirm ahead of time, I too have the T-Mobile version of the tablet.
Thank you if you get this and have the time to explain how you managed to make the device work!
Click to expand...
Click to collapse
I actually use it for news, reading etc. I have not tried to make Fi calls over 3g/LTE - just tried to do so, did not work, but I will try it again. It has worked fine for data over LTE. You can now have both Fi and Google Voice numbers, maybe get a Google Voice number and try calling over 3G with that?
friedsonjm said:
I actually use it for news, reading etc. I have not tried to make Fi calls over 3g/LTE - just tried to do so, did not work, but I will try it again. It has worked fine for data over LTE. You can now have both Fi and Google Voice numbers, maybe get a Google Voice number and try calling over 3G with that?
Click to expand...
Click to collapse
I'm not too worried about the ability to make/receive calls and my tablet states that my device is on LTE but I can be sure by the incredibly slow speeds I'm getting that it is locked to 3g. It takes minutes to load simple web pages. When you go to the Fi app does it state that your device is authenticated with the SIM associated to a tab A 8.4?
I just want LTE to use for Uber so I don't have my main phone pinned at maximum brightness all the time as this can cause burn in issues with the OLED display.
Edit: I was able to solve the issue with the help of tech support. The solution is to activate the SIM manually through the Fi website (fi.google.com/data) and restart the device with the SIM inserted (also the support rep had me delete the Fi app before restarting). Hope this helps anyone who finds this thread in the same way I did!
HateToConform said:
I'm not too worried about the ability to make/receive calls and my tablet states that my device is on LTE but I can be sure by the incredibly slow speeds I'm getting that it is locked to 3g. It takes minutes to load simple web pages. When you go to the Fi app does it state that your device is authenticated with the SIM associated to a tab A 8.4?
I just want LTE to use for Uber so I don't have my main phone pinned at maximum brightness all the time as this can cause burn in issues with the OLED display.
Click to expand...
Click to collapse
Are you using a full Fi voice/data SIM, or just data? I'm using just a data SIM...
Updated today, 108MB download, security patch level 1 July 2020. Kernel 4.4.177-18047720 Jul 8. Seems like a large patch for just security, but no other major changes observable. Still Android 9. Unable to find any public information on if/when upgrade to Android 10 will occur.
I'm surprised that a 2020 device doesn't even have any public info when it's going to catch up with present time's Android 10 (while there are already plans in the industry for Android 11). Very disappointing...
Update to Android 10 has been published by Samsung, and apparently is being sent out by Verizon. Nothing from T-Mobile yet... https://doc.samsungmobile.com/sm-t307u/glw/doc.html
T-Mobile Upgrading to 10 Today
Updated to Android 10, so far without issue. Security patch level Sept 1, 2020
I have sadly figured out that my old Huewei Mediapad 3 running a custom ROM https://forum.xda-developers.com/mediapad-m3/development/rom-t4085115/page58 has much better wifi reception that my new Galaxy Tab 8.4 2020
Unexpected update received today; still on Android 10, One UI 2.1, kernel 4.4.177-19484886, Build QP1A.190711.020.T307USQS3BTJ1
Security patch level Oct-2020 Release 1
This is the first time I've seen security patch levels updated two months in a row. The lack of an update to Android 11 is still very disappointing.
I have one too. How did you remove all the bloatware? Is possible to root it?
dr.dido89 said:
I have one too. How did you remove all the bloatware? Is possible to root it?
Click to expand...
Click to collapse
I have not removed bloatware, and it is not rooted. Mine is still not even unlocked, as I refuse to pay T-Mobile for 6 months of service I don't need.
I have Google Fi data chip in it, which works fine, and I use Nova launcher on all my phones and tablets so as to have a consistent interface.
As far as I know, no developer is working on unlocking/rooting or custom ROM.
dr.dido89 said:
I have one too. How did you remove all the bloatware? Is possible to root it?
Click to expand...
Click to collapse
I flashed Canadian Samsung tab A 8.4 Firmware (XAC)which is unlocked LTE version of this tablet. Not a single bloat and is faster than At&t firmware. I'm able to send/receive sms and mms, Hotspot but no call. So my t-mobile phone sim works in this unlocked At&t tablet with unlimited data.
XAA USA unlocked
XAC CANADA Unlocked.
mha1021 said:
I flashed Canadian Samsung tab A 8.4 Firmware (XAC)which is unlocked LTE version of this tablet. Not a single bloat and is faster than At&t firmware. I'm able to send/receive sms and mms, Hotspot but no call. So my t-mobile phone sim works in this unlocked At&t tablet with unlimited data.
XAA USA unlocked
XAC CANADA Unlocked.
Click to expand...
Click to collapse
My problem is, I don't believe I can flash any firmware until I can unlock the tablet - which I can't do without T-Mobile. Or am I missing something?
Updated today to Android 10, One UI 2.1, Jan 1 Security patch. I thought that the One UI 3.0 came with Android 10, but that's not what sys info says. I use Nova so I don't much care.
Running Geekbench 5, results are Single Core, 271 and multi-core, 998 virtually the same as day 1.

Question VoLTE not working since OneUI 4.0 Beta installation

Hello All,
I posted this in Samsung Community, but unfortunately none was able to help. I am hoping XDA members could help fix this issue.
I am facing a strange problem with my S21 Ultra Unlocked which was directly bought from Samsung. I had enrolled into OneUI 4.0 beta when I was in the US. I was using Sprint connection then.
I had to travel back to my home country (India) and I am using an Airtel sim card (LTE) here. Now, the strange problem is that LTE (data) works here fine. But, VoLTE is not working. The network changes to 2G for phone calls. I am assuming that the auto-switching bands which was introduced in OneUI 4.0 is causing the problem.
Using Smart Switch PC, I rolled back to One UI 3.1. VoLTE and WiFi calling started to work again. But, soon after I got update notification for One UI 4 beta. To confirm that it is indeed an issue with One UI 4, I installed it again. And as expected, I am not getting VoLTE or WiFI calling again.
Since I changed from Sprint to Airtel, I am not able to withdraw from the Beta program as well. I am getting the error "One UI beta features aren't available because your service provider has changed".
Also, I am not sure what the final One UI 4 will offer. For the first time in my life, I am seeing an Android upgrade causing my phone to not able to connect to VoLTE.
I am also attaching the screenshots of Phone Information. As you can see, in OneUI 3.1, VoLTE and WiFi calling are provisioned. But in OneUI 4, both are not available. I am assuming the issue is because IMS is not registered. But, I am not able to find how this can be fixed.
Thanks in advance for your help.
Thanks,
APS
#volte #samsung #s21ultra #oneui #oneui4 #imsservice #ims #airtel #oneuibeta
A quick update - I updated to final version One UI 4 and the issue is still there. I am still not able to get VoLTE or WiFi calling in India.
I am having similar issue. Were you able to figure out anything?
dp1989 said:
I am having similar issue. Were you able to figure out anything?
Click to expand...
Click to collapse
No. I have started a new thread in Samsung US Community. Let's see if it reaches the right team who needs to fix this issue.
Since the issue was previously in the Beta version, I didn't get much support. Now, I can see more people facing the same issue since OneUI 4 final version is out.
Can you please provide Samsung members thread link here (or subject line which will help me find it).. I will reply with same issue
dp1989 said:
Can you please provide Samsung members thread link here (or subject line which will help me find it).. I will reply with same issue
Click to expand...
Click to collapse
Try this "DON'T BUY S21 Series Phones if you want use it outside US".
aps99 said:
Try this "DON'T BUY S21 Series Phones if you want use it outside US".
Click to expand...
Click to collapse
I searched Samsung members app and didn't find any thread like that. May be if you can post a link.
dp1989 said:
I searched Samsung members app and didn't find any thread like that. May be if you can post a link.
Click to expand...
Click to collapse
It's in the US community. Did you search there?
Yes, I searched in US Community.
dp1989 said:
Yes, I searched in US Community.
Click to expand...
Click to collapse
Not sure if URL can be posted here. Let me try anyways.
Samsung account
us.community.samsung.com
Yes. I've noticed this since the beta started, was hoping it would be fixed by the time stable is released, but looks like it isn't.
VoLTE/VoWiFi worked fine in Qatar with One UI 3.1 (US unlocked model) but is unable to activate on One UI 4.
It's a shame, but they probably won't fix it since it still works alright with US sims. Maybe it will be fixed in One UI 5 accidentally next year the same way it broke now, but don't hold your breath.
I would once again rollback to One UI 3.1 and wait for a stable Android 12 One UI 4.0 however it may never work with that device in your region. I won't be updating until they release a better version, still too many bugs. Your best option is sell it and buy your Service Provider's device, that's a permanent fix.
varcor said:
I would once again rollback to One UI 3.1 and wait for a stable Android 12 One UI 4.0 however it may never work with that device in your region. I won't be updating until they release a better version, still too many bugs. Your best option is sell it and buy your Service Provider's device, that's a permanent fix.
Click to expand...
Click to collapse
I am on stable One UI 4.0 now. Still it doesn't work.
I cannot sell a device that has such an issue now that I am in India. I will probably sell it once I am back in US if Samsung doesn't fix this issue before then.
Go to settings -->general> reset ----> reset network settings
And reboot after
Volte shou´d work again
Hey i was having this same problem, but seems to have disappeared since I installed SM-G998U rom. I didn't install Userdata and seems I didn't get any bloatware plus activation is still on. You can try.
SOGKush420 said:
Go to settings -->general> reset ----> reset network settings
And reboot after
Volte shou´d work again
Click to expand...
Click to collapse
That won't work, and is completely irrelevant to the issue at hand. This only applies to the unlocked US model (U1) - the OneUI 4 update misconfigures VoLTE for international SIMs.
U will work, but the branded firmware shouldn't be required, U1 is currently broken.
lui0703 said:
Hey i was having this same problem, but seems to have disappeared since I installed SM-G998U rom. I didn't install Userdata and seems I didn't get any bloatware plus activation is still on. You can try.
Click to expand...
Click to collapse
Did you lose the data? I already factory reset my phone trying to fix this issue, rolling back etc.
aps99 said:
Did you lose the data? I already factory reset my phone trying to fix this issue, rolling back etc.
Click to expand...
Click to collapse
I did a full backup before. And just restored the data via Smart Switch after.
lui0703 said:
I did a full backup before. And just restored the data via Smart Switch after.
Click to expand...
Click to collapse
Just to confirm. Are you having a US phone which is being used outside US? What is your current carrier?
SOGKush420 said:
Go to settings -->general> reset ----> reset network settings
And reboot after
Volte shou´d work again
Click to expand...
Click to collapse
Will you please elaborate the whole procedure how did you installed this rom roll back to one UI 3.1 safely..
I have USA unlocked variant of S21 ultra and i am on stable One UI 4.0. Facing the issues.
..VOLTE AND WIFI CALLING FEATURE NOT WORKING ..
YOUR HELP WOULD BE HIGHLY APPRECIATED

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