So I've changed my n20u u1 csc to others and I've noticed that each time I'm getting different bands that I'm able to choose that were not available at first...
Originally I had the vzw... But I switched to att csc then to dsh...
Vzw at the bottom only had nb260 and nb261... However with dsh csc.
I get dang near every band...
Here is the same device on vzw csc
Which tools did you use?
The band difference is due to carrier settings. Att uses direct bands than Verizon and so on. Some carriers such as sprint csc stuff opens more bands up than say Verizon setup does. So for the most versatility probably u1 unlocked firm would be the best
mos2003 said:
Which tools did you use?
Click to expand...
Click to collapse
I used the *#272*imei# method
And used samsung band changer for the band list
That doesn't work with my mobile
mos2003 said:
That doesn't work with my mobile
Click to expand...
Click to collapse
What model number you have... Strange thing is that this is the only dialer code that works for me. No of the other secret menus work on mines (sm-n986u1)
GDHAMTON7 said:
What model number you have... Strange thing is that this is the only dialer code that works for me. No of the other secret menus work on mines (sm-n986u1)
Click to expand...
Click to collapse
Most of the dialers are disabled on u1 firmware
You have to use the Google Phone app to access that menu: https://play.google.com/store/apps/details?id=com.google.android.dialer
If your carrier doesn't support these added bands it won't make a difference, you won't be able to connect to them unless for SOS calls if any carrier support them.
L
GDHAMTON7 said:
So I've changed my n20u u1 csc to others and I've noticed that each time I'm getting different bands that I'm able to choose that were not available at first...
Originally I had the vzw... But I switched to att csc then to dsh...
Vzw at the bottom only had nb260 and nb261... However with dsh csc.
I get dang near every band...
Click to expand...
Click to collapse
Do you have a sim installed while doing This?
Related
Will this be the same hardware as other carriers like the S7's were? I was reading that T-Mobiles new band 66 will be usable(unused frequency) on the S8's. If Tmobile ever works in my area I would like to know if I can flash TMO firmware on my device or U firmware to my device like you could on S7's. On S7's you could go between cdma and gsm carriers with a flash Anyone have a link to network specs of S8's?
johnwayne27 said:
Will this be the same hardware as other carriers like the S7's were? I was reading that T-Mobiles new band 66 will be usable(unused frequency) on the S8's. If Tmobile ever works in my area I would like to know if I can flash TMO firmware on my device or U firmware to my device like you could on S7's. On S7's you could go between cdma and gsm carriers with a flash Anyone have a link to network specs of S8's?
Click to expand...
Click to collapse
root is completely a lost cause and will never happen most likely on any AT&T samsung device
I never mentioned root, wrong post?
You dont need root to flash firmware in odin
johnwayne27 said:
Will this be the same hardware as other carriers like the S7's were? I was reading that T-Mobiles new band 66 will be usable(unused frequency) on the S8's. If Tmobile ever works in my area I would like to know if I can flash TMO firmware on my device or U firmware to my device like you could on S7's. On S7's you could go between cdma and gsm carriers with a flash Anyone have a link to network specs of S8's?
Click to expand...
Click to collapse
They will all be exactly the same. There will be only one model in the US. If you sim unlock, and switch sims, do a factory reset, it will boot with the new carriers boot screen and bloat. Currently testing S8 and had mine locked to Att, but switched to Tmobile
bossg4 said:
They will all be exactly the same. There will be only one model in the US. If you sim unlock, and switch sims, do a factory reset, it will boot with the new carriers boot screen and bloat. Currently testing S8 and had mine locked to Att, but switched to Tmobile
Click to expand...
Click to collapse
Any place you can point to that confirms in writing the carrier variants all aupport the same bands? The carrier websites all show different band support from what ive found so far.
954wrecker said:
Any place you can point to that confirms in writing the carrier variants all aupport the same bands? The carrier websites all show different band support from what ive found so far.
Click to expand...
Click to collapse
I do not, I looked as well. When I asked about my Att phone booting up with T-mobile boot after unlock and Sim swap, I was told it was called one sku. I have see att to T-mobile swap as well as Verizon to Att. Even though my device was locked to att, i can connect to new lte u network.
bossg4 said:
I do not, I looked as well. When I asked about my Att phone booting up with T-mobile boot after unlock and Sim swap, I was told it was called one sku. I have see att to T-mobile swap as well as Verizon to Att. Even though my device was locked to att, i can connect to new lte u network.
Click to expand...
Click to collapse
What phone are you speaking about?
bossg4 said:
I do not, I looked as well. When I asked about my Att phone booting up with T-mobile boot after unlock and Sim swap, I was told it was called one sku. I have see att to T-mobile swap as well as Verizon to Att. Even though my device was locked to att, i can connect to new lte u network.
Click to expand...
Click to collapse
There is only 1 model number
Hello.
Anyone have one and can help me? I cannot get LTE on Tmobile no matter what APN settings I use. I know I have LTE here so I know it's not the band.
Thanks.
flash tmobile firmware on it
yeltrah123 said:
flash tmobile firmware on it
Click to expand...
Click to collapse
Yeah don't listen to this guy. The F model is exynos correct? That means no Tmobile software.
The F model you bought might be region locked so it may not work in the USA right now without unlocking it. I know there have been other threads about this not sure if a solution has been found or not.
ShrekOpher said:
Yeah don't listen to this guy. The F model is exynos correct? That means no Tmobile software.
The F model you bought might be region locked so it may not work in the USA right now without unlocking it. I know there have been other threads about this not sure if a solution has been found or not.
Click to expand...
Click to collapse
Yeah I was not listening to him cause this isn't my first rodeo. I bought it region unlocked. Do we know if band 12 is supported if the F or FD?
jdubya45 said:
Hello.
Anyone have one and can help me? I cannot get LTE on Tmobile no matter what APN settings I use. I know I have LTE here so I know it's not the band.
Thanks.
Click to expand...
Click to collapse
i have the 955FD model and it works just fine with T-Mobile USA. did you call T-Mobile to ensure your account is provisioned for LTE access? (I assume you're in the USA). where did you purchase your 955F model S8+?
cortez.i said:
i have the 955FD model and it works just fine with T-Mobile USA. did you call T-Mobile to ensure your account is provisioned for LTE access? (I assume you're in the USA). where did you purchase your 955F model S8+?
Click to expand...
Click to collapse
Hey Cortez. Good to hear this as I have the FD as well. Bought it on eBay from a trusted seller and it is region unlocked. I have LTE provisioned. So...i have "4G" and not 4G+ although I have seen both. What do you show and what band are you on?
jdubya45 said:
Hey Cortez. Good to hear this as I have the FD as well. Bought it on eBay from a trusted seller and it is region unlocked. I have LTE provisioned. So...i have "4G" and not 4G+ although I have seen both. What do you show and what band are you on?
Click to expand...
Click to collapse
4G = LTE. Go to SETTINGS>ABOUT PHONE>STATUS>SIM CARD STATUS and you should see LTE under Mobile network type. that's how i determine LTE access... there's also an app name LTE Discovery that can be used to determine which band you're using. by the way, i believe 4G+ is LTE-A, or carrier aggregation, which is faster than standard LTE..
cortez.i said:
4G = LTE. Go to SETTINGS>ABOUT PHONE>STATUS>SIM CARD STATUS and you should see LTE under Mobile network type. that's how i determine LTE access... there's also an app name LTE Discovery that can be used to determine which band you're using.
Click to expand...
Click to collapse
Thanks bro. VoLTE working?
jdubya45 said:
Thanks bro. VoLTE working?
Click to expand...
Click to collapse
not sure... i do know that when i use my T-Mo SIM (vs ATT) calls are super clear. i'm using my ATT account at the moment because i'm tethering my laptop and TIDAL HiFi music in my car. (my monthly data allowance with ATT is 100GB + rollover).
cortez.i said:
not sure... i do know that when i use my T-Mo SIM (vs ATT) calls are super clear. i'm using my ATT account at the moment because i'm tethering my laptop and TIDAL HiFi music in my car. (my monthly data allowance with ATT is 100GB + rollover).
Click to expand...
Click to collapse
If it drops to H/H+ then you don't have VoLTE. If it stays 4G then you have VoLTE.
Tidbits said:
If it drops to H/H+ then you don't have VoLTE. If it stays 4G then you have VoLTE.
Click to expand...
Click to collapse
Just checked and it drops to H.
Can we co firm if TMo volte is supported?
jdubya45 said:
Just checked and it drops to H.
Can we co firm if TMo volte is supported?
Click to expand...
Click to collapse
Not supported as it dropped to H.
Sent from my SM-G955U using Tapatalk
Tidbits said:
Not supported as it dropped to H.
Click to expand...
Click to collapse
It should be if band 12 is supported. VoLTE is software driven also so maybe a custom ROM will add it in. Waiting...
jdubya45 said:
It should be if band 12 is supported. VoLTE is software driven also so maybe a custom ROM will add it in. Waiting...
Click to expand...
Click to collapse
Wouldn't matter on band support. VOLTE should work on all supported LTE bands for T-Mobile. If it drops to H then that means there is not VOLTE support for T-Mobile.
Sent from my SM-G955U using Tapatalk
Tidbits said:
Wouldn't matter on band support. VOLTE should work on all supported LTE bands for T-Mobile. If it drops to H then that means there is not VOLTE support for T-Mobile.
Sent from my SM-G955U using Tapatalk
Click to expand...
Click to collapse
It should be using the Tmobile csc to get Volte support..
I have US and international version, US version supports Volta same sim not supporting in international version... Problem is due to the Csc configured to the international version won't support Tmobile Volta..
Unless we have success in flashing tmobile Csc it won't work same as WiFi calling
Sent from my SM-G955F using Tapatalk
`SBR` said:
It should be using the Tmobile csc to get Volte support..
I have US and international version, US version supports Volta same sim not supporting in international version... Problem is due to the Csc configured to the international version won't support Tmobile Volta..
Unless we have success in flashing tmobile Csc it won't work same as WiFi calling
Sent from my SM-G955F using Tapatalk
Click to expand...
Click to collapse
Goes back to what I said. Wouldn't matter the band. If the support isn't there which as you pointed out it doesn't support the CSC.
Sent from my SM-G955U using Tapatalk
ShrekOpher said:
Yeah don't listen to this guy. The F model is exynos correct? That means no Tmobile software.
The F model you bought might be region locked so it may not work in the USA right now without unlocking it. I know there have been other threads about this not sure if a solution has been found or not.
Click to expand...
Click to collapse
whoops lol. Forgot if F or FD variants of the S8+ uses Exynos 8895, and U.S. models use Snapdragon 835.
Looking at purchasing an S8+ second hand. How's the band support work across carrier versions? It's a smg955uzvv, which is a Vz model. Is it possible to flash the unlocked or T-Mobile firmware and if so will that activate all of the respective bands?
nameback said:
Looking at purchasing an S8+ second hand. How's the band support work across carrier versions? It's a smg955uzvv, which is a Vz model. Is it possible to flash the unlocked or T-Mobile firmware and if so will that activate all of the respective bands?
Click to expand...
Click to collapse
They are nearly world wide universal. If its network unlocked. You can flash the tmobile so you have their apps. Or flash the unbranded csc files to make it bloat free. The newer samsungs are awesome with compatibility
I'm curious, since the iphone 12 series is in stores today, it seems that the iphone is using the X55 Qualcomm modem. If I understand correctly, that's the same modem that the Snapdragon Note 20 ultra uses? If so, how come the iphone 12 has so many 5g bands, and the Note 20 ultra is so limited by region? If it's the same modem, why the difference?
If the modems are different, then please ignore my question
What I have noticed is that using the *#272*imei# method and changing it to DSH... I get the exact same amount with the sm-986u1...
GDHAMTON7 said:
What I have noticed is that using the *#272*imei# method and changing it to DSH... I get the exact same amount with the sm-986u1...
Click to expand...
Click to collapse
This is on the 9860 model?
I'm still curious why apple uses the same modem and has pretty much all worldwide 5g bands covered, and the 9860 has a paltry 3 bands, especially when they're the same modems
hkalltheway said:
This is on the 9860 model?
I'm still curious why apple uses the same modem and has pretty much all worldwide 5g bands covered, and the 9860 has a paltry 3 bands, especially when they're the same modems
Click to expand...
Click to collapse
I've the US unlocked sm-n986u1... And I'm not sure either. After I changed my csc to DSH... I noticed I had all these.
GDHAMTON7 said:
I've the US unlocked sm-n986u1... And I'm not sure either. After I changed my csc to DSH... I noticed I had all these.
Click to expand...
Click to collapse
Cool, although I'm referring specifically to the 9860 model. Assuming all snapdragon units have the same X55 modem, I don't understand why they don't have the same 5g bands, when Apple has clearly shown that the modem is capable of ALL major 5g bands. Does Samsung specifically gimp the modem?
hkalltheway said:
Cool, although I'm referring specifically to the 9860 model. Assuming all snapdragon units have the same X55 modem, I don't understand why they don't have the same 5g bands, when Apple has clearly shown that the modem is capable of ALL major 5g bands. Does Samsung specifically gimp the modem?
Click to expand...
Click to collapse
All the units do have the x55 modem and I am not sure why all the bands aren't available for roaming either. The available bands are controlled by the service mode built into the firmware, then further defined by the CSC. I know here in the US, the CSC controls more than just the 5G band availability as well. I have noticed when using t-mobile while on Verizon CSC, SA 5G won't register any service bars in the corner icon. Also band 41 5g, although enabled, won't connect. And then when using Verizon on Tmobile CSC, 5G n5 won't connect even with DSS and n5 NSA enabled.
It looks like architecture in iPhone is one worldwide firmware that just enables all bands and then available services are further changed by the carrier services from the installed Sim.
I followed this user's notes and I think this did the trick.
https://forum.xda-developers.com/ga...de-service-mode-csc-guide-enable-lte-t4182293
GDHAMTON7 said:
I followed this user's notes and I think this did the trick.
https://forum.xda-developers.com/ga...de-service-mode-csc-guide-enable-lte-t4182293
Click to expand...
Click to collapse
After going through that thread, doesn't seem like enabling all bands is possible on the 9860.
Title says it all, in the past on factory unlocked samsung phones I've had the default samsung LTE logo in the status bar. For some reason my new S22 Ultra is displaying the hideouts Verizon 4G LTE logo.
SM-S908U1
S908U1UEU1AVC8
Uhhh no, I'm getting my s22 Ultra tomorrow and my main carrier is Verizon, I hope I don't get that. There has to be a way to change the csc to xaa aka the default icons.
Apathyyy said:
Title says it all, in the past on factory unlocked samsung phones I've had the default samsung LTE logo in the status bar. For some reason my new S22 Ultra is displaying the hideouts Verizon 4G LTE logo.
SM-S908U1
S908U1UEU1AVC8
Click to expand...
Click to collapse
Which carrier are you using (dont weant to assume Verizon)?
What I have learned about carriers in the US is that once you put in a SIM it will ask for a reboot to "install" carrier features or at least most major carriers do (ATT, VERIZON, TMO). it will show the LTE icon that matches your carrier after rebooting. (at least in US models, not sure in international ones)
I remember when I lived overseas, I would get the standard LTE and VoLTE logos but once I put my US SIM it would change to the TMO 4GLTE icon (which I completely hate).
joancolmenares said:
Which carrier are you using (dont weant to assume Verizon)?
What I have learned about carriers in the US is that once you put in a SIM it will ask for a reboot to "install" carrier features or at least most major carriers do (ATT, VERIZON, TMO). it will show the LTE icon that matches your carrier after rebooting. (at least in US models, not sure in international ones)
I remember when I lived overseas, I would get the standard LTE and VoLTE logos but once I put my US SIM it would change to the TMO 4GLTE icon (which I completely hate).
Click to expand...
Click to collapse
Yeah I’m using a Verizon sim. Must be something new because in the past I’ve had the default Samsung LTE status bar indicator.
train21 said:
Uhhh no, I'm getting my s22 Ultra tomorrow and my main carrier is Verizon, I hope I don't get that. There has to be a way to change the csc to xaa aka the default icons.
Click to expand...
Click to collapse
Unfortunately I don't think so. Before inserting my Verizon sim it was XAA/XAA,XAA/XAA. Once I inserted the sim the phone forced a reboot to install carrier specific features which is when I saw the Verizon specific 4G LTE logo. It now shows
VZW/VZW,XAA/XAA
Apathyyy said:
Unfortunately I don't think so. Before inserting my Verizon sim it was XAA/XAA,XAA/XAA. Once I inserted the sim the phone forced a reboot to install carrier specific features which is when I saw the Verizon specific 4G LTE logo. It now shows
VZW/VZW,XAA/XAA
Click to expand...
Click to collapse
Damn that's somewhat unfortunate.
T-Mobile U model flashed with U1 firmware. On AT&T, Verizon, and T-Mobile sims I see the generic Samsung LTE icon
hyelton said:
T-Mobile U model flashed with U1 firmware. On AT&T, Verizon, and T-Mobile sims I see the generic Samsung LTE iconView attachment 5569143
View attachment 5569145
Click to expand...
Click to collapse
hyelton said:
T-Mobile U model flashed with U1 firmware. On AT&T, Verizon, and T-Mobile sims I see the generic Samsung LTE iconView attachment 5569143
View attachment 5569145That’s odd. Maybe I’ll reflash the U1
Click to expand...
Click to collapse
SM-S908U1
S908U1UEU1AVC8 with AT&T
Apathyyy said:
Unfortunately I don't think so. Before inserting my Verizon sim it was XAA/XAA,XAA/XAA. Once I inserted the sim the phone forced a reboot to install carrier specific features which is when I saw the Verizon specific 4G LTE logo. It now shows
VZW/VZW,XAA/XAA
Click to expand...
Click to collapse
I have an unlocked S22 Ultra on T-Mobile and it does not show they're 4G LTE icon at all. I only see their 5G icon. Pretty sure this is only a Verizon thing.
hyelton said:
T-Mobile U model flashed with U1 firmware. On AT&T, Verizon, and T-Mobile sims I see the generic Samsung LTE iconView attachment 5569143
View attachment 5569145
Click to expand...
Click to collapse
You're only seeing that cause VZW isn't active CSC. TMB is active CSC.