Just got the G960U here in USA and its great.
But that fact that its my first bootloader locked Samsung is bugging me and im pretty sure i'll return it.
I use UltraMobile mvno -T-mobile sim with Wifi calling enabled.
Both the bootloaders on these models are unlocked correct? They are both Exynos? If there another model that has unlocked bootloader?
Is one more desirable than the other?
Any major drawbacks/differences with these models if i were to use in USA?
for example, do devs create more custom roms for one or the other?
Or would one model be more likely to be able to get wifi calling better like if i flashed the right CSC?
Thanks
Hey I'm thinking about buying a G960FD as well for use in the US. I have G930FD's and G950FD's currently. The F models don't have LTE bands 30 (AT&T) or 71 (T-Mobile) - frequencycheck.com is a great site to look up phone/carrier compatibility. The lack of these frequencies in the radio is not a deal breaker because these are just for extra capacity at this point, though band 71 with T-Mobile offers additional outdoor range being low frequency. You will need to root to in order to get VoLTE in the US, and this will be necessary for T-Mobile since T-Mobile only has 4G coverage and some crappy 2G coverage outside of large cities. So without 3G coverage calls WILL fail outside of large cities if you don't root to enable VoLTE since the phone will not be able to place a call on 4G LTE bands without VoLTE. AT&T doesn't typically allow non AT&T unlocked phone IMEI's to use VoLTE, and AT&T will be shutting down 3g in a few years. At that point, their IMEI whitelisting may go away and they'll start allowing an phone to use VoLTE, otherwise they'll start losing customers. If they don't change their attitude though, your phone will also not work on AT&T in a couple years (they don't have 2G enabled anywhere anymore). Verizon is also shutting down their 3G network in a couple of years.
I actually came searching XDA to see if anyone had a SM-G960F or SM-G965F working with VoLTE (and specifically dual VoLTE on the FD since it's supported) on any US carriers. I haven't come across anyone yet. On the Exynos S7 and S8, if you don't need WiFI calling, it's actually pretty easy to get VoLTE working without having to install an bunch of crap. There's just 4 files you need to edit or overwrite in /system/csc and one additional VoLTE settings file you have to place there as well. I'm thinking it would be the same with the Exynos S9. I just need someone with an S9 to confirm. Since you need WiFi calling, it's going to be a bit more work. You can look at the CSC selection tool easily found by searching here on XDA for the Exynos S7/S8 to see what you'll need to get WiFi calling to work (it's not that bad to go through the code and files in the zip installer). You may end up having to extract the US Qualcomm S9 T-Mobile firmware to get the required files out of it, or you might even be able to get away with simply flashing edited portions of the S8 CSC selection tool files to your G960F to get VoLTE and T-Mobile WiFi calling to work. (If you flash the CSC selection tool to directly to the stock ROM, it will break a lot of things due to the permissions XML file). I would plan on spending a few weekends to get VoLTE and WiFi calling working on it though.
If anyone has any additional experience, please chime in here!!
Also, one thing to pay attention to whenever you flash stock firmware using ODIN is Samsung's stupid e-fuses that prevent you from downgrading to a different bootloader level which will lock you out of downgrading stock firmware. It's the first number in the firmware descriptor. For example, if you blindly flash a U3 or S3 firmware, you can NEVER go back to a U2 or S2 firmware outside of a custom ROM. And even with a custom ROM, you may end up with compatibility issues with the new bootloader.
Another thing is when you root Samsung phones, it trips another permanent e-fuse that not only voids your warranty, but prevents apps like Knox and Samsung Pay from working ever again on the device.
To answer your questions:
The FD is just dual SIM - no other advantages. There's actually a hack for the Exynos S7's that will convert them to dual SIM since it's the same hardware. I'm not sure if it's like that with the Exynos S9.
Yes, the Exynos international versions have an unlocked bootloader (just have to go to enable developer options in the OS then go into developer options and enable OEM unlocking)
Yes, having an unlocked bootloader means there will be MUCH more custom ROMS and development out there.
It looks like the SM-G9600 or SM-G9650 (Chinese/Latin American) are the versions to get. They have the Qualcomm Snapdragon 845 processor, is bootloader unlocked, and apparently even working on Verizon and T-Mobile (see the thread below). They don't have bands 30 or 71, but that's not the end of the world since most older phones as of a few years ago don't have those bands. I'm still wondering if dual VoLTE is working on these.
https://forum.xda-developers.com/galaxy-s9/how-to/guide-sm-g9600-sm-g9650-verizon-t3890695
Does anybody know if I can use Odin to put stock Sprint A505U firmware into my Verizon A505U? There's no OEM unlock option on the A505U (US version) phone so the bootloader is locked. I prefer not to root so I can use google-pay without any masking shenanigans.
The sprint firmware has a different set of enabled FDD-LTE bands that makes it more useful. Thanks.
Edit:
I've just learned that some carrier unlocked galaxies s8, s9, s10, etc. running pie will auto rebrand and adjust available bands to adapt to whatever Sim is installed. Does the A505U do this? This would be far easier than flashing if it works for the A505U.
The Samsung BYOD rebranding feature for U models based on sim insertion is always released about 10 months after the phone's initial release.
This has been the case for S8, Note 8, S9, and Note 9. It is not even released yet for S10.
So it will probably be getting close to mid-2020 before it is released for A505U, if even then.
Thanks for the response. I am still trying to wrap my head around how Samsung does their "BYOD Experience" rebranding. It appears that Samsung has gone the route of common hardware for US phones while supporting all the major carrier CSC's (multi-CSC?) within a given branded firmware .
Since only the CDMA carriers Xfinity, Sprint, and Verizon have the A505U, I'll try to find somebody with an ATT or TMO sim to see how my supposedly unlocked Verizon A505U reacts. I haven't seen any reports of what happens posted yet as it relates to the A505U.
I have a Galaxy A505U through Sprint. As you've said it is bootloader locked by the carrier. The 7 day trick does not work to show/enable Oem Unlock. I forget the reason now but I have reflashed stock firmware in Odin before which would modify system partion despite a locked bootloader. So I believe that you could in theory flash the sprint firmware in odion but I don't know how this will affect coverage. I do know sprint has roaming agreement in place with vzw so it should work.... But you're coverage may be degraded as I believe it's not going to support all of vzw lte bands... On a slightly separate note I am curious if there's some way to get around the lock using Odin. I am rusty on my Samsung modding(not eisnce sgs4) and terminology but I'm wondering if we could flash just the bootloader itself from another variant.
cominteldb said:
The Samsung BYOD rebranding feature for U models based on sim insertion is always released about 10 months after the phone's initial release.
This has been the case for S8, Note 8, S9, and Note 9. It is not even released yet for S10.
So it will probably be getting close to mid-2020 before it is released for A505U, if even then.
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Click to collapse
this is not accurate.. the devices contain multi csc in the omc partition so once the device is sim unlocked all the firmwares for usa variants have the csc for all the carriers.. you can use an app like phoneinfo and see the available csc's.. it has been this way as you stated since the S8 and up...
now if you are talking about U1 devices then thats a different story.. U1 devices typically have the same csc's but are just unbranded meaning little to no carrier bloat for example.
this is typically why all the firmwares are interchangeable because they are all containing the same csc. The only difference sometimes will be the userdata which might b labeled specific to a carrier but ultimately this doesnt matter either as they typically would contain only a few extra carrier bloat apps that shouldnt impact overall function at all..
heck, if you know what ur doing you can even change the csc code without even flashing any other firmware or putting another sim in.. i typically for example use sprint sales code with vzw network code bcuz i have verizon but sprint has more dialer codes..
as an example my g975u was purchased from verizon but i currently set the csc to GCF for research purposes and all my vzw services work great and to start I used a U firmware that had userdata labeled for SPR lol I also removed the last bit in the carrier code for research purposes.. when i toss a tmo sim in it automatically loads the apns and carrier mode for tmo and it just works without even rebooting
occams-razor said:
Thanks for the response. I am still trying to wrap my head around how Samsung does their "BYOD Experience" rebranding. It appears that Samsung has gone the route of common hardware for US phones while supporting all the major carrier CSC's (multi-CSC?) within a given branded firmware .
Since only the CDMA carriers Xfinity, Sprint, and Verizon have the A505U, I'll try to find somebody with an ATT or TMO sim to see how my supposedly unlocked Verizon A505U reacts. I haven't seen any reports of what happens posted yet as it relates to the A505U.
Click to expand...
Click to collapse
you are correct.. the usa variants are multi csc so they should work anywhere.. international devices also contain multi csc for w.e region it is purchased in. once sim unlocked if u say try to take ur phone to china or something ur device wont contain that csc but you should be able to get it to work with apn edits for example and might not have all the bells and whistles since couldnt flash their specific csc if that makes sense..
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
Samsungs "byod" experience just means its carrier unbranded so its sim unlocked out the box and can b used on any usa network without all the carrier bloat.. this is sort of pointless in my opinion since usually these firmwares can also b flashed to carrier branded variants..
on a side note, i have a tmo sim but mainly i use verizon and am getting an A50 from big red tomorrow so I will test this out for u and let u kno how tmo is in a vzw a50.
i have a tmo purchased a10e and my vzw sim works great in it.. in fact, vzw works better in the tmo phone than tmo haha but thats bcuz tmo isnt as good service wise in my area
elliwigy said:
you are correct.. the usa variants are multi csc so they should work anywhere.. international devices also contain multi csc for w.e region it is purchased in. once sim unlocked if u say try to take ur phone to china or something ur device wont contain that csc but you should be able to get it to work with apn edits for example and might not have all the bells and whistles since couldnt flash their specific csc if that makes sense..
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
Samsungs "byod" experience just means its carrier unbranded so its sim unlocked out the box and can b used on any usa network without all the carrier bloat.. this is sort of pointless in my opinion since usually these firmwares can also b flashed to carrier branded variants..
on a side note, i have a tmo sim but mainly i use verizon and am getting an A50 from big red tomorrow so I will test this out for u and let u kno how tmo is in a vzw a50.
i have a tmo purchased a10e and my vzw sim works great in it.. in fact, vzw works better in the tmo phone than tmo haha but thats bcuz tmo isnt as good service wise in my area
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Click to collapse
Thanks for the great info! Please let us know how the TMO sim works out. I'm most curious about whether TMO features like their VoLTE and VoWIFI are enabled.
An Interested Observer...
elliwigy said:
the usa variants are multi csc so they should work anywhere...
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
i use verizon and am getting an A50 from big red tomorrow so I will test this out for u and let u kno how tmo is in a vzw a50.
Click to expand...
Click to collapse
Hello..
Your comment sparked my interest.. as I'm a new owner of the Xfinity variant of the Galaxy A50.
Although I have no plans to leave Xfinity for the remainder of 2019.. as I'm waiting for my $250.00 Promo Rebate which comes around the 4th Month of service to cover just under 65% of my investment in the A50... leaving me with a $135.00 balance.. But, if what you state is indeed the case.. and these devices have the guts to run on traditional GSM Carrier's.. this add much more intrigue into the equation..:angel:
I'm not one to pry.. but, did you follow through with your purchase? and if so... what were your findings?
elliwigy said:
These phones nowadays are all world capable for the most part and contain the hardware to work on the differet networks (cdma gsm etc)
Click to expand...
Click to collapse
That is correct but as someone who works in the industry and works with 3 out of 4 nationwide carriers I can say Att typically has there iphones manufacturered without a cdma attena making it gsm only.
I just checked my sprint A505U and it does have csc codes for many carriers including att, spt, vzw and t-mob among others. So generally another firmware should work fine then?
I had purchased a used SM a505u from dubai market. 1 YEAR IT WORKS FINE and after that I understand phone is not getting updates and there was issue with fingerprint sensor. And I decided to flah march2020 update from samfrew . But after that I am not getting network .it says networ error. Sim card crash.contact carrier etc...
Where can the Note 10+ Global Exynos variant be purchased? Can it be purchased on the Samsung website like the US variants can?
Trying to grab the Exynos variant since it’s going to have the development potential.
TheForceUnleashed said:
Where can the Note 10+ Global Exynos variant be purchased? Can it be purchased on the Samsung website like the US variants can?
Trying to grab the Exynos variant since it’s going to have the development potential.
Click to expand...
Click to collapse
I have purchased Exynos Variants for a bunch of different Samsung phones over the years. the "F" variant, N975F will work on ATT and or TMobile with no issues. (or N975F/DS)
If you want to buy, I have used two different places to buy in the past - both offer the Note 10 now -
Clove UK
or EBAY
Clove is an excellent source, fast shipping - good customer service and the major sellers on EBAY are also very good. I have used "Never MSRP" and I have heard that there are several others that I have heard are very good and reliable.
Whatever you choose, good luck
What version of the Note 10+ w/ an unlocked bootloader would be the best choice to use for Verizon?
igemon said:
What version of the Note 10+ w/ an unlocked bootloader would be the best choice to use for Verizon?
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Click to collapse
Verizon is cdma and the exynos variants are usually gsm only (AT&T and T-Mobile).
I doubt you'll be able to find what you're looking for.
yeah if you wan't an international version they will always be GSM where some of the US still uses CDMA. so whatever you bought you would need to check it supports the signal on network you want to use it on. also using an international phone you generally need to use a SIM from the local market for a set amount of time, my UK unlocked Note 9 actually has a disclaimer on the box it needed 5 minutes of calls with a european SIM before it would accept an international one, so that is also something you will have to watch out for or you end up having to pay to get an international sim and a several minute call at international rates to unlock the device for a US SIM.
I also use dual sim (F/DS) varieties of Samsung phones, they generally work fine on ATT in the US but they do miss some bands, specifically band30 which means that sometimes I have low speed or no data at all. Also, you won't get VoLTE unless enabled by your carrier. It's a trade-off. Of course you also won't get 5G until there's a dual SIM 5G variant.
enginuity2 said:
Verizon is cdma and the exynos variants are usually gsm only (AT&T and T-Mobile).
I doubt you'll be able to find what you're looking for.
Click to expand...
Click to collapse
Verizon is ending CDMA support at end of this year. So it doesn't matter with Verizon anymore.
It should be noted that with Exynos F models, USA Carrier Aggregation does not work properly.
While the phone will function properly, it will not have the same network speeds as an equivalent USA model.
For example, I had in my possession a N960F and did a speed test next to a N920T (Note 5) and I was getting like 70-90Mbps down on the Note 5 and was only getting 15-30Mbps on the N960F in the exact same spots.
I've tested this many times and actually also with the N950F before that.
I'm only posting about this just to make people aware. I'm, sure there are some that will take the trade-off of slower speeds to gain the ability of root and development, but there are also some out there that prefer that their speeds not be gimped.
This has been discussed on many XDA threads in the Note 8, S9, Note 9, S10 forums for a couple of years now and can be duplicated exactly as mentioned.
If anyone has figured out a way to get proper USA CA on F model phones I'm one of the first that would love to hear about it.
I'm sure @iunlock would also.
DeeXii said:
It should be noted that with Exynos F models, USA Carrier Aggregation does not work properly.
While the phone will function properly, it will not have the same network speeds as an equivalent USA model.
For example, I had in my possession a N960F and did a speed test next to a N920T (Note 5) and I was getting like 70-90Mbps down on the Note 5 and was only getting 15-30Mbps on the N960F in the exact same spots.
I've tested this many times and actually also with the N950F before that.
I'm only posting about this just to make people aware. I'm, sure there are some that will take the trade-off of slower speeds to gain the ability of root and development, but there are also some out there that prefer that their speeds not be gimped.
This has been discussed on many XDA threads in the Note 8, S9, Note 9, S10 forums for a couple of years now and can be duplicated exactly as mentioned.
If anyone has figured out a way to get proper USA CA on F model phones I'm one of the first that would love to hear about it.
I'm sure @iunlock would also.
Click to expand...
Click to collapse
Yes indeed.
Along with @DeeXii around the same time I had the F variant of the Note 8 along side my T-Mobile Note 8 and ran numerous tests.
TL;DR, in areas with a lot of cell towers (in the city etc...) you won't notice a big difference (IF) your within a strong range (close) from a tower. When this happens you're connected to a single strong frequency.
While travelling on the road with both devices at the time it was very apparent that the F model was not handing off well (tower to tower), while the TM variant as expected did just fine.
It is in my opinion that those who have claimed that CA works on international variants are being tricked by getting real good speeds due to being connected to a strong signal from a near by tower / area. It's convincing I know...
We're convinced unless proven otherwise that CA is an issue with the international Exynos variants, whether it's the F or Korean N models. Yes, I'm aware of some N models showing icons that may say otherwise, however, it is yet to be seen if the CA is truly working as most people who have the international variants, often don't have the US variants handy to be able to compare them side by side under different conditions.
Believe me... I want to see CA to work lol.... I really really do, because I'd rather have an Exynos variant 100% over a locked down US variant.
As I wait for my Note 10+ to arrive tomorrow, as excited as I am for a new device, since it can not be rooted there's still an uncertainty in the back of my mind that doesn't bring me much assurance that I'll be 100% sold rocking a non rooted phone due to my apps that require root, tweaks that I do etc...
Engineering leak, oh if you're out there please show yourself.... :silly:
iunlock said:
Yes indeed.
Along with @DeeXii around the same time I had the F variant of the Note 8 along side my T-Mobile Note 8 and ran numerous tests.
TL;DR, in areas with a lot of cell towers (in the city etc...) you won't notice a big difference (IF) your within a strong range (close) from a tower. When this happens you're connected to a single strong frequency.
While travelling on the road with both devices at the time it was very apparent that the F model was not handing off well (tower to tower), while the TM variant as expected did just fine.
It is in my opinion that those who have claimed that CA works on international variants are being tricked by getting real good speeds due to being connected to a strong signal from a near by tower / area. It's convincing I know...
We're convinced unless proven otherwise that CA is an issue with the international Exynos variants, whether it's the F or Korean N models. Yes, I'm aware of some N models showing icons that may say otherwise, however, it is yet to be seen if the CA is truly working as most people who have the international variants, often don't have the US variants handy to be able to compare them side by side under different conditions.
Believe me... I want to see CA to work lol.... I really really do, because I'd rather have an Exynos variant 100% over a locked down US variant.
As I wait for my Note 10+ to arrive tomorrow, as excited as I am for a new device, since it can not be rooted there's still an uncertainty in the back of my mind that doesn't bring me much assurance that I'll be 100% sold rocking a non rooted phone due to my apps that require root, tweaks that I do etc...
Engineering leak, oh if you're out there please show yourself.... :silly:
Click to expand...
Click to collapse
That's not accurate at all.
The Galaxy S10+ F model did 100% work with at least 2 bands carrier aggregation when used on T-Mobile and AT&T. Bands 4+2 on T-Mobile and 12/17+2 on At&t were aggregated. SOME models that were running a European CSC code from European countries did NO indeed have CA enabled in the US. Phones with Asias CSC codes had 2 band CA enabled in the US. It never supported more other bands CA in the US.
I experimented with this myself by flashing the main OXM ROM and then using a local country SIM immediately after flashing to change the CSC code of the firmware to one that SIM region. Every time it was a European CSC, CA would not longer work.
It's important to note that Wifi calling and VOLTE both worked on T-Mobile with the F model out of the box. This started with the S10 and i expect the same to be with the note 10.
clubtech said:
That's not accurate at all.
The Galaxy S10+ F model did 100% work with at least 2 bands carrier aggregation when used on T-Mobile and AT&T. Bands 4+2 on T-Mobile and 12/17+2 on At&t were aggregated. SOME models that were running a European CSC code from European countries did NO indeed have CA enabled in the US. Phones with Asias CSC codes had 2 band CA enabled in the US. It never supported more other bands CA in the US.
I experimented with this myself by flashing the main OXM ROM and then using a local country SIM immediately after flashing to change the CSC code of the firmware to one that SIM region. Every time it was a European CSC, CA would not longer work.
It's important to note that Wifi calling and VOLTE both worked on T-Mobile with the F model out of the box. This started with the S10 and i expect the same to be with the note 10.
Click to expand...
Click to collapse
Excellent. Please provide us some more info then showing your claims.
What I have stated is indeed accurate as it was based on my own tests with the Note 8 lol...many have done the same as well. This issue regarding CA has been hashed to pieces in several threads with a lot of folks involved in showing concrete proof that it did not work with the phones we've tested it with at the time.
Show us with screen shots, detailed description where the phones were tested etc... that CA works on the F variant and we'll throw a party....
You have to remember that there are several of us that really want CA to work... it's not like we're against it.
Again, we've seen this claim before and it was due to the user not factoring in that they were in a "good signal area near a tower," where they were connected to a strong signal that made it seem like CA was working in respect to the bands the international phone supported... I'm not saying this is the case with what you have experienced, but until we can see proof.... with this situation it's all heresay unless proven otherwise... therefore...
What you've said is not accurate at all, because we have no proof... so please provide proof.
@DeeXii I'll tag you as I'm sure you're just as curious...
Looking forward to hearing back... :highfive:
Well, just received the N975FD Dual SIM model and i'm testing it with AT&T and Project FI in the US (which uses T-Mobile).
This unit rung the Singapore firmware. As i stated in my last reply, Carrier aggregation DOES work with BOTH networks.
Here are some observations for those are interested in getting the international version and use it in the US:
AT&T:
Surprisingly, VOLTE works out of the box with AT&T. This is a first for the international unlocked model. My AT&T SIM already had this feature provisioned on my account and it just worked when I placed the SIM into the Note 10+.
HD calling works as well (tested a call to another AT&T customer and a Verizon customer).
The device can do 2xCA with bands 2 + 12 and bands 2 + 4.
Speed is almost the same as the US model when using these frequencies.
No WiFi calling
Project Fi (T-Mobile).
VOLTE works.
HD calling just between T-Mobile customers.
The device can do 2xCA with bands 2 + 4. I have not seen it do 4+12 or 2+12 yet.
No WiFi calling (but that's normal to any phone that's not a pixel with Fi).
Verizon:
To be tested still
Like I mentioned before, if your international version comes from a European country, for some reason carrier aggregation no longer works. If you then flash an Asian firmware, have an Asian country SIM inside the phone when you flash the firmware and do a factory reset after you flash, carrier aggregation will start working with a US SIM afterward.
DeeXii said:
It should be noted that with Exynos F models, USA Carrier Aggregation does not work properly.
While the phone will function properly, it will not have the same network speeds as an equivalent USA model.
For example, I had in my possession a N960F and did a speed test next to a N920T (Note 5) and I was getting like 70-90Mbps down on the Note 5 and was only getting 15-30Mbps on the N960F in the exact same spots.
I've tested this many times and actually also with the N950F before that.
I'm only posting about this just to make people aware. I'm, sure there are some that will take the trade-off of slower speeds to gain the ability of root and development, but there are also some out there that prefer that their speeds not be gimped.
This has been discussed on many XDA threads in the Note 8, S9, Note 9, S10 forums for a couple of years now and can be duplicated exactly as mentioned.
If anyone has figured out a way to get proper USA CA on F model phones I'm one of the first that would love to hear about it.
I'm sure @iunlock would also.
Click to expand...
Click to collapse
It's not the model that causes this - it's your lack of the correct CSC. If it has a compatible CSC, it works just fine.
I'm currently debating rooting my new Note 10+ 5g to port over the T-Mobile CSC from a T-Mobile model like I did with the Note 8.
Kalm_Traveler said:
It's not the model that causes this - it's your lack of the correct CSC. If it has a compatible CSC, it works just fine.
I'm currently debating rooting my new Note 10+ 5g to port over the T-Mobile CSC from a T-Mobile model like I did with the Note 8.
Click to expand...
Click to collapse
That is 100% incorrect.
While flashing the CSC is a must on any locked or F model Samsung phone to enable all carrier features like video calling and VoLTE. It does not give the CA tables that are in the snap dragon's baseband to an Exynos device.
There for if you are on a US carrier and have a N975U/U1 next to a N975F, the speeds on the N975F will be significantly less than the N975U/U1. I'm surprised you have entered this debate again with these views considering your experience in the matter. Once again we have obtained an F model and tested against US variants and have concluded that as of now, simply flashing the CSC from T-Mobile or any US variant does not enable USA Carrier Aggregation on Exynos models. I am not trying to be mean or agumentitive here, but when you have people ordering from overseas potentially running into situations where they cannot return a device, it is very important to have 100% accurate information.
It should be noted that while on 5G it may be different because I do not think 5G uses the MIMO type actions of carrier aggregation. But also with that said. 5G phones do not use 5G 100% of the time. (See how 5G works for more info)
TLR - Yes unlocked international models "work" on US carriers. However their speeds will be much slower than on a US variant because international variants cannot do the Carrier Aggregation that US carriers need for full data speeds.
DeeXii said:
That is 100% incorrect.
While flashing the CSC is a must on any locked or F model Samsung phone to enable all carrier features like video calling and VoLTE. It does not give the CA tables that are in the snap dragon's baseband to an Exynos device.
There for if you are on a US carrier and have a N975U/U1 next to a N975F, the speeds on the N975F will be significantly less than the N975U/U1. I'm surprised you have entered this debate again with these views considering your experience in the matter. Once again we have obtained an F model and tested against US variants and have concluded that as of now, simply flashing the CSC from T-Mobile or any US variant does not enable USA Carrier Aggregation on Exynos models. I am not trying to be mean or agumentitive here, but when you have people ordering from overseas potentially running into situations where they cannot return a device, it is very important to have 100% accurate information.
It should be noted that while on 5G it may be different because I do not think 5G uses the MIMO type actions of carrier aggregation. But also with that said. 5G phones do not use 5G 100% of the time. (See how 5G works for more info)
TLR - Yes unlocked international models "work" on US carriers. However their speeds will be much slower than on a US variant because international variants cannot do the Carrier Aggregation that US carriers need for full data speeds.
Click to expand...
Click to collapse
I'm not sure where you got that information, but quite a few of us posted screenshots in the Note 8 days showing the CA tables on our N and F variants. I believe the CA combo info is within the keystrings.dat file but don't quote me on that.
Also - nobody should root their phone (needed to flash USA CSCs on N and F variant Samsung phones) and expect to be able to return the device afterwards. We are taking the risk anyway by ordering an overseas model phone.
Kalm_Traveler said:
I'm not sure where you got that information, but quite a few of us posted screenshots in the Note 8 days showing the CA tables on our N and F variants. I believe the CA combo info is within the keystrings.dat file but don't quote me on that.
Also - nobody should root their phone (needed to flash USA CSCs on N and F variant Samsung phones) and expect to be able to return the device afterward. We are taking the risk anyway by ordering an overseas model phone.
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I'm getting my info from several tests done by myself and several others.
The tests on our Note 10 devices match exactly the tests we have done on Note8 and Note 9 international Exynos F models that people have been testing for years that simply do not do US Carrier Aggregation, even with the US CSC.
We have had two Note 10 F models, an unlocked US model, and a T-Mobile US Model. At the same exact location, my old Note 5 N920T pulls higher download speeds (because of Carrier Aggregation) than my brother in law's N975F.
Go find a T-Mobile N975U and see for yourself, however, I am not sure where you are located. I am sure there are some places in the country that might produce the same speeds on their phones simply because the towers in that area are older and do not have all of the bands some major markets have.
In those locations, you will probably see average download speeds anyways. In this situation, an Exynos model is acceptable as the speeds will be the same. However, when traveling the data will still be gimped obviously.
Bottom line is that if a person in a major market gets an N975F and flashes the T-Mobile CSC they will still have gimped data speeds when compared to a US snapdragon variant, period.
Believe me, there is no one more than myself and @iunlock that want CA to work 100% 1:1 with the N975U model but it's just not the case. It is what it is.
Also, it should be noted that CA does not just affect download speeds. It can also affect signal reliability in certain situations.
DeeXii said:
I'm getting my info from several tests done by myself and several others.
The tests on our Note 10 devices match exactly the tests we have done on Note8 and Note 9 international Exynos F models that people have been testing for years that simply do not do US Carrier Aggregation, even with the US CSC.
We have had two Note 10 F models, an unlocked US model, and a T-Mobile US Model. At the same exact location, my old Note 5 N920T pulls higher download speeds (because of Carrier Aggregation) than my brother in law's N975F.
Go find a T-Mobile N975U and see for yourself, however, I am not sure where you are located. I am sure there are some places in the country that might produce the same speeds on their phones simply because the towers in that area are older and do not have all of the bands some major markets have.
In those locations, you will probably see average download speeds anyways. In this situation, an Exynos model is acceptable as the speeds will be the same. However, when traveling the data will still be gimped obviously.
Bottom line is that if a person in a major market gets an N975F and flashes the T-Mobile CSC they will still have gimped data speeds when compared to a US snapdragon variant, period.
Believe me, there is no one more than myself and @iunlock that want CA to work 100% 1:1 with the N975U model but it's just not the case. It is what it is.
Also, it should be noted that CA does not just affect download speeds. It can also affect signal reliability in certain situations.
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I take this as a challenge, my friend
Hold my beer...
Would flashing a different CSC get rid of the current carrier boot and shutdown animation? And, to flash a Tmo CSC on a rooted sm-n975f be as simple as flashing the new CSC in Odin?
Kalm_Traveler said:
. . . . port over the T-Mobile CSC from a T-Mobile model like I did with the Note 8.
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Hey Kalm_Traveler. Long time no chat.
Please do that. I just picked up a SM-N975F/DS and would love to see that happen. I remember your old N8 thread well.
To update my earlier reply, just tested the FD model with Verizon.
VOLTE works out of the box.
HD voice works.
I've seen 2 x CA with bands 4 and 2 and then 5 and 2.
So while we are both going to see 3 x CA or 4 x CA, it can def do 2 x CA on the 3 carriers I tested.
What surprised me that VOLTE works out of the box for all 3 carriers.View attachment 4819270
Sent from my SM-N975F using Tapatalk
I'm on T-Mobile with my S9+ and I've been pulling my hair out for months trying to find a solution.
Using 4g for calls leads the phone to glitch and drop the majority of my conversations, but not drop.
I've had T-Mobile replace my SIM, used my SIM on other phones with no issues, factory reset my phone and used safe mode. The only workaround I have come up with is running my phone on 2g/3g constantly, because some geniuses at T-Mobile disabled the ability to turn off VoLTE. I am losing money and opportunities because of this - busy people generally don't like when you hang up on them when you can't hear them and they can't hear you.
Since rooting the phone, using ODB magic or kernel/rom changes are not an option due to the chipset, I pose the (very desperate) question:
Is there any software or trick that anybody knows that will allow me to disable VoLTE on my T-Mobile Samsung S9+? Or any sort of workaround? I am stumped!
mark55555 said:
I'm on T-Mobile with my S9+ and I've been pulling my hair out for months trying to find a solution.
Using 4g for calls leads the phone to glitch and drop the majority of my conversations, but not drop.
I've had T-Mobile replace my SIM, used my SIM on other phones with no issues, factory reset my phone and used safe mode. The only workaround I have come up with is running my phone on 2g/3g constantly, because some geniuses at T-Mobile disabled the ability to turn off VoLTE. I am losing money and opportunities because of this - busy people generally don't like when you hang up on them when you can't hear them and they can't hear you.
Since rooting the phone, using ODB magic or kernel/rom changes are not an option due to the chipset, I pose the (very desperate) question:
Is there any software or trick that anybody knows that will allow me to disable VoLTE on my T-Mobile Samsung S9+? Or any sort of workaround? I am stumped!
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flash a CSC for a different carrier. The csc is what tells the phone which carrier specific software to install/use and voLTE is very carrier specific
Youdoofus said:
flash a CSC for a different carrier. The csc is what tells the phone which carrier specific software to install/use and voLTE is very carrier specific
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Where might I be able to find the correct CSCs for North American carriers?
mark55555 said:
Where might I be able to find the correct CSCs for North American carriers?
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ACG – Nextech/C Spire
ATT – AT&T
CCT – Comcast
LRA – Bluegrass Cellular
SPR – Sprint (CDMA)
TFN – Tracfone
TMB – T-Mobile
USC – US Cellular
VMU – Virgin Mobile USA
VZW – Verizon
XAA – USA (unbranded/unlocked/default)
XAS – USA (unbranded/unlocked)
https://www.**********.com/how-to-change-csc-in-samsung-galaxy-phones/
and the firmware is available at www.sammobile.com/firmwares but when downloading, use samfirm or frija, theyre literally 4x faster than a direct DL. Frija and samfirm are free and available here on good ol XDA
Hi,
I haven't been able to find a clear answer to this, but does the international S20+ work on AT&T's 5G and mmWave network? From what I can tell the phone has RF support for AT&T's 5G bands including mmWave (n260), but does the phone actually register on their network?
I'm coming from the S7 where I was used to flashing a CSC or OMC for AT&T in order to get VoLET and WIFI calling. Is there ATT CSC or OMC support for this phone yet particularly for 5G and mmWave support? I couldn't really find anything.
Thanks!
Have you visited an ATT Retailer?
varcor said:
Have you visited an ATT Retailer?
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I don't understand your question. What does that have to do with my question?
mattwood2000 said:
I don't understand your question. What does that have to do with my question?
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What don't you understand? You're looking for clear answers since you really can't find anything. First you need to realize ATT Firmware including their CSC isn't compatible with your Exynos SoC. Secondly, why not ask the Service Provider in question (ATT) since they're best suited to resolve compatibility issues?
varcor said:
What don't you understand? You're looking for clear answers since you really can't find anything. First you need to realize ATT Firmware including their CSC isn't compatible with your Exynos SoC. Secondly, why not ask the Service Provider in question (ATT) since they're best suited to resolve compatibility issues?
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Maybe I should have been more clear...What I'm really asking is if anyone currently has an unlocked international variant and is running it on AT&T, and if so, does it connect to their 5G mmWave service?
Its been my experience that the people who work at ATT stores don't know anything about anything. So no I'm not going to waste my time asking someone who will just try to tell me what I want to hear or flat out say no because they don't know what their talking about.
Yes a carrier's CSC is technically not compatible with an international unlocked phone but it still works. There are a whole bunch of people running custom or stock CSCs on non-carrier hardware, myself included.
mattwood2000 said:
Maybe I should have been more clear...What I'm really asking is if anyone currently has an unlocked international variant and is running it on AT&T, and if so, does it connect to their 5G mmWave service?
Its been my experience that the people who work at ATT stores don't know anything about anything. So no I'm not going to waste my time asking someone who will just try to tell me what I want to hear or flat out say no because they don't know what their talking about.
Yes a carrier's CSC is technically not compatible with an international unlocked phone but it still works. There are a whole bunch of people running custom or stock CSCs on non-carrier hardware, myself included.
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Your device isn't compatible with ATT mmWave regardless of the CSC or FW. Nor does it matter that your device operates on the same 4G and 5G frequencies ATT engages. It has to do with ATT Protocols which restrict functionality to select devices.
ATT is by far the worst when it comes to compatibility alignment for Non-ATT devices. If call features, carrier aggregation and services are a priority then stick with your service provider's branded device.