I have a S23U(S918B/DS) in China, but there is only 4G can be used. Flashing a third party SoulRom based on Mainland China version can use 5G, but I don't want to root my phone. Can I just Odin flash the Chinese version baseband instead of the whole firmware? The 5G Specs of 918B covers all the 5G bands in China, is there any service code to unlock the SA/NSA mode or more 5G bands in hidden menu?( I've tried S918U service code but it doesn't work for S918B)
Many thanks!
Have you tried the samfw tool method?
Does trying to dial below do anything?
*#27663368378#
*#73#
evangelionpunk said:
Have you tried the samfw tool method?
Does trying to dial below do anything?
*#27663368378#
*#73#
Click to expand...
Click to collapse
I've tried, but nothing happened.
vclee said:
I've tried, but nothing happened.
Click to expand...
Click to collapse
Then check the band csc changing thread. You may need to flash the US firmware, then enable secret codes then enable all bands. You might then be able to flash back, if you want, and all the bands may remain open.
5g overrated anyways. Lte is better.
Brava27 said:
5g overrated anyways. Lte is better.
Click to expand...
Click to collapse
Really ??? 5G NSA 10x faster and no mmwave
vclee said:
I have a S23U(S918B/DS) in China, but there is only 4G can be used. Flashing a third party SoulRom based on Mainland China version can use 5G, but I don't want to root my phone. Can I just Odin flash the Chinese version baseband instead of the whole firmware? The 5G Specs of 918B covers all the 5G bands in China, is there any service code to unlock the SA/NSA mode or more 5G bands in hidden menu?( I've tried S918U service code but it doesn't work for S918B)
Many thanks!
Click to expand...
Click to collapse
Change your CSC to ILO or INS, let us know how it works out for you.
vclee said:
I have a S23U(S918B/DS) in China, but there is only 4G can be used. Flashing a third party SoulRom based on Mainland China version can use 5G, but I don't want to root my phone. Can I just Odin flash the Chinese version baseband instead of the whole firmware? The 5G Specs of 918B covers all the 5G bands in China, is there any service code to unlock the SA/NSA mode or more 5G bands in hidden menu?( I've tried S918U service code but it doesn't work for S918B)
Many thanks!
Click to expand...
Click to collapse
Did you have any luck with this? I travel between China and the US a lot, and I am wondering if I can get 5G in both countries with the S918B/DS on Verizon & China Mobile.
Related
The phone has a hidden menu if you type *#546368#*930# in the dialer.
Does anyone have experience with activating VoltE and switching LTE bands.
I live in Denmark and my carrier supports voltE but it is not activated and I don't know how to activate it on this phone.
Try flashing the India DS firmware on it, which allows VoLTE, at least with India carriers.
Does anyone on HK or India software version have access to IMS settings in the Field test in the hidden menu?
I don't have access to IMS settings in Denmark on the HK software version.
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Did you find a solution
I have the same issue. Wanted to hear if you find a solution.
ChazzMatt said:
Try flashing the India DS firmware on it, which allows VoLTE, at least with India carriers.
Click to expand...
Click to collapse
Doelpher said:
Does anyone on HK or India software version have access to IMS settings in the Field test in the hidden menu?
I don't have access to IMS settings in Denmark on the HK software version.
Click to expand...
Click to collapse
Here's India firmware if you want to flash it via dev patched LGUP.
[H930DS][STOCK][OREO]LG V30+ INDIA H930DS H930DS20b_00_OPEN_ESA_DS_OP_0530.kdz
You can always flash back to HK if it doesn't have what you want.
I recently moved to the Netherlands and got a contract with Tele2, a 4G provider that offers VoLTE. However, my Latin American, Snapdragon-based S9+ (SM-G9650) didn't show the VoLTE option under Settings -> Connections -> Mobile Networks. That was with a ROM from Panama. In the meantime, my wife's S8 (SM-G950F) did show it.
I tried installing a G9650 ROM from Colombia since they have a mobile provider with VoLTE, but nothing changed. I then tried a Hong Kong ROM (where pretty much *all* providers offer VoLTE), and the button appeared in the notifications area. However, when I try to enable it I get "VoLTE is not supported by your current software version".
Any suggestions? Thanks
VoLTE is really a country specific feature. Hong Kong version won’t support China’s Volte, though China Mobile operates both in Hong Kong and mainland China
从我的 iPhone 发送，使用 Tapatalk
kevinfan1990 said:
VoLTE is really a country specific feature. Hong Kong version won’t support China’s Volte, though China Mobile operates both in Hong Kong and mainland China
从我的 iPhone 发送，使用 Tapatalk
Click to expand...
Click to collapse
Ouch... Unfortunately the SM-G9650 isn't even sold by European carriers. Any ideas?
Thanks
If you're going to live on the Netherlands sell it and buy the European version or stick with the SD without VoLTE.
victorbayas said:
If you're going to live on the Netherlands sell it and buy the European version or stick with the SD without VoLTE.
Click to expand...
Click to collapse
Is there no ROM I can install on my Snapdragon S9+ that will allow me to use VoLTE in the Netherlands? I see no reason for the phone to be incompatible if it supports all the bands, etc.
Thanks
Zoide_ said:
Is there no ROM I can install on my Snapdragon S9+ that will allow me to use VoLTE in the Netherlands? I see no reason for the phone to be incompatible if it supports all the bands, etc.
Thanks
Click to expand...
Click to collapse
Can you download Phone Info Samsung and tell us which CSC is your phone currently using?
victorbayas said:
Can you download Phone Info Samsung and tell us which CSC is your phone currently using?
Click to expand...
Click to collapse
Active CSC Code: TPA
CSC Country: Panama / PA
Mobile Operator: Tele2 NL / 20402
Remove your SIM Card, do a Hard Reset, boot the device, insert your SIM Card then it should factory reset again and start with another CSC.
victorbayas said:
Remove your SIM Card, do a Hard Reset, boot the device, insert your SIM Card then it should factory reset again and start with another CSC.
Click to expand...
Click to collapse
Does it really change the CSC even I am looking for a solution for the same problem
anuj2yv said:
Does it really change the CSC even I am looking for a solution for the same problem
Click to expand...
Click to collapse
It's supposed that it'll do.
Did this work for anyone? (Remove the sim, insert etc) I'm aiming to get VoLTE on tmobile and need to change the CSC code as well.
victorbayas said:
Remove your SIM Card, do a Hard Reset, boot the device, insert your SIM Card then it should factory reset again and start with another CSC.
Click to expand...
Click to collapse
That wont work, the CSC is embedded into the firmware for that specific region. Unless you change the firmware to the region you're in you're out of luck. In some cases the CSC is also carrier specific even in the same region.
Even with some flashing/MSMtool/logkit/code/unlock/root, is it possible?
If Possible buy an Unlocked Version from Europe, China or India as Bootloader cannot be unlocked on an Carrier locked device from T-Mobile or Verizon.
Move to Oxygen OS 12.1 Global that supports 17 5G SA & NSA Bands, however with flashing other region firmware will not support carrier features like VoWiFI and VoNR and ViNR services.
gonetask said:
If Possible buy an Unlocked Version from Europe, China or India as Bootloader cannot be unlocked on an Carrier locked device from T-Mobile or Verizon.
Move to Oxygen OS 12.1 Global that supports 17 5G SA & NSA Bands, however with flashing other region firmware will not support carrier features like VoWiFI and VoNR and ViNR services.
Click to expand...
Click to collapse
It is unfortunate that it is extremely difficult to get dual VoWifi with latest oneplus phones in US. Even esim support would get the job done.
So the international version Cph2415 which has all the t-mobile bands support volte and wifi calling?
daviddem said:
So the international version Cph2415 which has all the t-mobile bands support volte and wifi calling?
Click to expand...
Click to collapse
wait... you sure? Do you have any reference or did you buy a cph2415 and test it out? Is it T-Mobile only, or also ATT and Verizon and MVNOs?
After seeing your post I also found this DP: https://forum.xda-developers.com/t/...-latest-ne2213_11_a-15.4470081/#post-87168325
Interesting.. need to do more research on this.
I just bought US model of s23ultra, but I actually live in Taiwan
the issue is none of it's the carrier aggregation is supported here
so I wonder if it is possible to flash SM-S9180's firmware on SM-S918U1 device ??
if it can:
1. Can I get future update by OTA??
2. Will it break Knox??
if it can't, is there any other alternative way to change the the carrier aggregation setting ??
xiaoguei said:
I just bought US model of s23ultra, but I actually live in Taiwan
the issue is none of it's the carrier aggregation is supported here
so I wonder if it is possible to flash SM-S9180's firmware on SM-S918U1 device ??
if it can:
1. Can I get future update by OTA??
2. Will it break Knox??
if it can't, is there any other alternative way to change the the carrier aggregation setting ??
Click to expand...
Click to collapse
Don't do it. You will brick device.
You can't flash U or U1 phones to B models it will brick your phone.
To enable carrier aggregation, check this thread
[Help][Guide][Philippines]SM-N9860 TGY/BRI/CHC Snapdragon Users|5G Reception Fix|Updated Guide for OneUI4.0
Hi! I created this thread for SM-N9860 HK/TW/CH variant users from Philippines. The GOAL is to make our units work with our local carriers': 4G Carrier Aggregation (4G CA) (i.e. 4G+/LTE-A). 5G network and resolve any carrier related issues...
forum.xda-developers.com
PapaDocta said:
You can't flash U or U1 phones to B models it will brick your phone.
To enable carrier aggregation, check this thread
[Help][Guide][Philippines]SM-N9860 TGY/BRI/CHC Snapdragon Users|5G Reception Fix|Updated Guide for OneUI4.0
Hi! I created this thread for SM-N9860 HK/TW/CH variant users from Philippines. The GOAL is to make our units work with our local carriers': 4G Carrier Aggregation (4G CA) (i.e. 4G+/LTE-A). 5G network and resolve any carrier related issues...
forum.xda-developers.com
Click to expand...
Click to collapse
This trick hasn't worked since One UI 4.
pjaysnowden said:
This trick hasn't worked since One UI 4.
Click to expand...
Click to collapse
I had S22 Ultra U1 and deleting the CA files using QPST works
PapaDocta said:
I had S22 Ultra U1 and deleting the CA files using QPST works
Click to expand...
Click to collapse
Cool. Ok. I never got luck with that
Hello . I have a question about the Galaxy S23 ultra from 2023 all models are equipped with snapdragon 888 gen 2 before in B model Samsung use their exynos chip so what's the best deal the main difference now between U model And B , can we change our U model csc to like B to enable call recording, can we flash B model firmware on it ?
The biggest difference is that u and u1 models can never be oem unlocked because samsung completely removed that option from the software. The other models can be oem unlocked.
Without oem unlock root and BL unlock is just not possible.
As for csc changes, I've tried to change my u1 csc to a B csc and it just won't do it. As for call recording I can't get native to work on the u1 but I have the app called skvalex call recorder and it works on my S23U
spart0n said:
The biggest difference is that u and u1 models can never be oem unlocked because samsung completely removed that option from the software. The other models can be oem unlocked.
Click to expand...
Click to collapse
Your comment seems to suggest it is Samsung's choice to remove that option, while I understand it is merely a locally imposed requirement (providers? authorities?)
OnnoJ said:
Your comment seems to suggest it is Samsung's choice to remove that option, while I understand it is merely a locally imposed requirement (providers? authorities?)
Click to expand...
Click to collapse
It's not local or providers because other devices sold here can be oem unlocked same as the carriers here allow oem unlocks on devices. Just not samsung. I've been told it's Qualcomm that makes samsung do this but why would they just do it to samsung because Qualcomm supplies components for other manufacturers that sell here yet they can be oem unlocked. The way I see it, it's just a way for samsung to prevent using any other roms on their devices in the US.
My question is why we cannot flash B firmware on it and does U model also has dual sim hardware like B and E model
jahanzaiblohani said:
My question is why we cannot flash B firmware on it and does U model also has dual sim hardware like B and E model
Click to expand...
Click to collapse
No dual physical sim but there's 1 sim and esim but you can try to flash the B firmware but it gives an error. I'm willing to bet that even if you could force the flash that it wouldn't boot because samsung would probably make it a brick on purpose for anyone who tried to force it.
I had Galaxy s21 Fe snapdragon model single sim no esim and I converted it to dual sim a physical dual sim device
Both have physically different antenna/modems in them.
jahanzaiblohani said:
Hello . I have a question about the Galaxy S23 ultra from 2023 all models are equipped with snapdragon 888 gen 2 before in B model Samsung use their exynos chip so what's the best deal the main difference now between U model And B , can we change our U model csc to like B to enable call recording, can we flash B model firmware on it ?
Click to expand...
Click to collapse
S918U/U1 USA version
Single physical Sim + Esim
5G mmwave antennas
No native call recording can be enabled
Only supports USA CSC
No Unlockable bootloader thus no Root
S918 B
Global version excluding
(US ,China,Canada,tiwan ,HongKong,Korea )
Best version for users ourside US
2 Physical sims + esim
Call recording & other stuff can be enabled by CSC change
Better support for 4g&5g bands worldwide compared to ( US , China & Korea versions)
hoss_n2 said:
S918U/U1 USA version
Single physical Sim + Esim
5G mmwave antennas
No native call recording can be enabled
Only supports USA CSC
No Unlockable bootloader thus no Root
S918 B
Global version excluding
(US ,China,Canada,tiwan ,HongKong,Korea )
Best version for users ourside US
2 Physical sims + esim
Call recording & other stuff can be enabled by CSC change
Better support for 4g&5g bands worldwide compared to ( US , China & Korea versions)
Click to expand...
Click to collapse
Wow, I haven't had Samsung since S3 but was looking at the ultra; and seen unlocked on Amazon(referring to network I suppose), I'm sure thankful to see this info. I was thinking about getting the international version for T-Mobile in US? Thanks for suggesting, advice, etc.