Is it possible with SamKey to change my CSC to VZW on an N976U? i know VZW has its own distinct model, but i wasn't sure if it mattered. I'm able to get 5G service with VZW on the N976U, just want to get the whole package if possible...
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I'm looking to upgrade to the S9+ and looking for advice on whether or not to get the US carrier unlock version or the T-Mobile version. So those of you who went with the US carrier unlocked S8+, What are the Pros and Cons of it please?
You need to get an Exynos S9+, better performance and bootloader unlocking
I would check and make sure the international version supports bands 66 and 71 first (600 mhz). I've looked all over but I can't find that info anywhere yet.
If you are financing I'd buy unlocked from Samsung.com, If paying full price buy it directly from T-Mobile directly. If you plan to have it SIM unlocked T-Mobile branded phones from Samsung.com are harder (not impossible, but not instant when you are eligible through the Unlock App). If the S9 is like the S8 you should be able to switch to each carriers firmware automatically after it's unlocked. I found the carrier bloat to be very light on the S8, and doesn't prevent you from using most features compared to the factory unlocked model (Verizon excluded).
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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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.
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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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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.
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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)
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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...
We currently have GS7s
So I had put this there also
But I thought better chance of people here having done this already...
My family has been with sprint for decades.
We have never done a carrier switch.
Family plan.
All phones carrier unlocked.
We have 3 GS7s with sprint firmware.
Two are sprint hardware
One is U hardware
PHOENIX market. Tmobile 5G.
Looking to change all 3 #s to tmobile family plan
Replacing the two sprint GS7s with GS20+
And keeping the GS7 U (sprint firmware)
But changing the GS7 U to tmobile.
Not worried at all about the new GS20s.
Concerned for what to expect of the kept GS7 U (sprint firmware).
Will tmobile flash new tmobile firmware to it?
Will tmobile turn on the proper tmobile radios?
Will the sprint specific bloatware remain and not be uninstallable?
Do I have to do the tmobile firmware/radios myself?
Thanx
KaptainRandom said:
We currently have GS7s
So I had put this there also
But I thought better chance of people here having done this already...
My family has been with sprint for decades.
We have never done a carrier switch.
Family plan.
All phones carrier unlocked.
We have 3 GS7s with sprint firmware.
Two are sprint hardware
One is U hardware
PHOENIX market. Tmobile 5G.
Looking to change all 3 #s to tmobile family plan
Replacing the two sprint GS7s with GS20+
And keeping the GS7 U (sprint firmware)
But changing the GS7 U to tmobile.
Not worried at all about the new GS20s.
Concerned for what to expect of the kept GS7 U (sprint firmware).
Will tmobile flash new tmobile firmware to it?
Will tmobile turn on the proper tmobile radios?
Will the sprint specific bloatware remain and not be uninstallable?
Do I have to do the tmobile firmware/radios myself?
Thanx
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Click to collapse
Does GS7 "U" mean it's unlocked? If you purchased it unlocked you can put a T-Mobile SIM in and it will work.
scottjb said:
Does GS7 "U" mean it's unlocked? If you purchased it unlocked you can put a T-Mobile SIM in and it will work.
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i mean im not a gs7 owner for years assuming hes talking about a galaxy s7 which might have issues on tmo if it doesnt have much gsm capability since sprint is of course cdma..
im just gonna stick with sprint and get a sprint s20 ultra 5g seeing as how sprint and tmo are now the same company and sprint users are already able to roam on tmos network and s20 5g owners can already use tmos nationwide 5g as well as they currently have 0 down for new lines and upgrades and sprint is usually the cheaper option (although im on an employee swac acct)
to add tmo wont do anything to the device firmware or anything of the like.. if its unlocked and capable they could probably activate it.. if not then it wont work or u might have some stuff work n other stuff not..
good luck on the switch.. we'll all be under the new tmobile soon enough lol
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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Click to collapse
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.
I purchased a Verizon Galaxy Note 10+ 5g from ebay last year to use for Total Wireless. Well the phone wasnt compatible with Total Wireless at the time and I had to switch to Verizon prepaid. Now the phone is compatible but I cant add APN's to the device because Verizon has greyed out the option. I bought a US Mobile Sim card so I can switch all of our phones over since it is cheaper and is a Verizon MVNO, but I cant get everything to work on my note 10+ 5g. I was able to download an app that let me add APN's and the LTE comes up but now I cant get VoLTE to work. Its turned on but when I make a phone call, it switches to 1x. This is a problem since Verizon is doing away with their CDMA Network. I have spoken to Verizon, US Mobile, and Samsung with no help. My other Note 8 will work just fine when I put the US Mobile Sim card in and my Samsung a71 5g wont work at all and wont let me add APN's even with the app.
I have been doing research and found out about SamKEY and bought some credits to change the CSC from VZW to XAA. I was in the process and it gave a warning about locking the SEC so I decided to do more research before I screwed something up.
The phone is unlocked but for some reason, Verizon phones have these issues with a Verizon MVNO. I can add the TMO sim card from US Mobile and it will allow me to edit the APN's without an issue but I get zero coverage here so I cant use it. So how can I change the CSC to get VoLTE working on a Verizon MVNO? Or can I even change the CSC on this phone? I am so sick of Verizon phones but Im afraid to buy an unlocked phone since It doesnt support all of Verizon's bands.
Jmp7624 said:
I purchased a Verizon Galaxy Note 10+ 5g from ebay last year to use for Total Wireless. Well the phone wasnt compatible with Total Wireless at the time and I had to switch to Verizon prepaid. Now the phone is compatible but I cant add APN's to the device because Verizon has greyed out the option. I bought a US Mobile Sim card so I can switch all of our phones over since it is cheaper and is a Verizon MVNO, but I cant get everything to work on my note 10+ 5g. I was able to download an app that let me add APN's and the LTE comes up but now I cant get VoLTE to work. Its turned on but when I make a phone call, it switches to 1x. This is a problem since Verizon is doing away with their CDMA Network. I have spoken to Verizon, US Mobile, and Samsung with no help. My other Note 8 will work just fine when I put the US Mobile Sim card in and my Samsung a71 5g wont work at all and wont let me add APN's even with the app.
I have been doing research and found out about SamKEY and bought some credits to change the CSC from VZW to XAA. I was in the process and it gave a warning about locking the SEC so I decided to do more research before I screwed something up.
The phone is unlocked but for some reason, Verizon phones have these issues with a Verizon MVNO. I can add the TMO sim card from US Mobile and it will allow me to edit the APN's without an issue but I get zero coverage here so I cant use it. So how can I change the CSC to get VoLTE working on a Verizon MVNO? Or can I even change the CSC on this phone? I am so sick of Verizon phones but Im afraid to buy an unlocked phone since It doesnt support all of Verizon's bands.
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IDK about unlocking an US device. I prefer unlocked devices.
US unlocked versions of Samsung devices are called "U1". It's part of the model number/name.
E.g. SM-G981U is the US locked Samsung Galaxy S20 5g (like for Verizon), and the SM-G981U1 is the US unlocked version of the same device.
It_ler said:
IDK about unlocking an US device. I prefer unlocked devices.
US unlocked versions of Samsung devices are called "U1". It's part of the model number/name.
E.g. SM-G981U is the US locked Samsung Galaxy S20 5g (like for Verizon), and the SM-G981U1 is the US unlocked version of the same device.
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Thanks for the reply. I ended up selling the phone and buying a Google Pixel 4 XL. Saved some money and its unlocked. Ill never buy another Verizon Edition of the phone again.