Question Help G9980 no band 5G - Samsung Galaxy S21 Ultra

I am writing from google translate, excuse my bad english.
I have a problem with my s21 Ultra g9980, I live in Chile and the 5G network doesn't work, only 4G (not 4G+ either), I'm desperate, I don't know what to do, they told me about a code, others about a Rom from Germany, change csc (I don't know what it is), I'm afraid of making a mistake, the person who sold me this phone didn't tell me that the 5G network wouldn't work, I have a Snapdragon 256gb, android 12, one ui 4.1
please help me.
can i change since g9980 a other region? help me please

Aleh90 said:
I am writing from google translate, excuse my bad english.
I have a problem with my s21 Ultra g9980, I live in Chile and the 5G network doesn't work, only 4G (not 4G+ either), I'm desperate, I don't know what to do, they told me about a code, others about a Rom from Germany, change csc (I don't know what it is), I'm afraid of making a mistake, the person who sold me this phone didn't tell me that the 5G network wouldn't work, I have a Snapdragon 256gb, android 12, one ui 4.1
please help me.
can i change since g9980 a other region? help me please
Click to expand...
Click to collapse
I think you're out of luck my friend. You can flash only 3 regions on an SM-G9980, China - CHC, Taiwan - BRI and Hong Kong - TGY. Of those 3 Hong Kong firmware is the best option. Even if your service provider uses a 5G Band which is included in your device's network configuration it's unlikely to be compatible since the anchors aren't aligned.

Related

How to change the CSC to enable the 4G frequency bands of another country !

Hello.
Living in France, and having imported a Hong Kong Galaxy Note 5, so it miss B20 (800Mhz) frequency band to have 4G optimally.
Is it possible to activate this frequency band or another by changing the CSC firmware? How to do please?
The only models currently offering all French frequency bands are the N920C and N920CD (Dual SIM)
Apparently it is possible to do it on a Galaxy Note 3 and 4 ....
Thank you.
Not currently. Other Samsung phones that use Qualcomm chipsets can through a program called QPST, but its a complex process to do. You essentially bought the wrong phone.
Also this is the wrong forums. Mod please delete!
Maybe you bought the wrong phone.
These are the bands up on my note 5
http://imgur.com/Q0MdaZA
siriom said:
Maybe you bought the wrong phone.
These are the bands up on my note 5
Click to expand...
Click to collapse
Wich model you bought? and where?
I hope there was a solution for your problem.
I'm in the same deep hole...
920i and Ebay . Also im in Portugal atm. My phone is originally from singapore i believe ... it had the singtel bloatware on it.

Xiaomi Mi9 TE versions and differences

Hello everyone!
As far as I know there are two versions of the Transparent Edition Mi9
8/256GB and 12/256GB. The 12GB model was the first one with the difference in the storage and RAM and it has a 7P elements 48mp camera instead of the 6P on regular Mi9 models and it has a bigger aperture one as well with F. 47.
On March 22nd Xiaomi released the 8/256GB TE model which has the same camera tech as a regular Mi9 but it has the B20 LTE modem which is used in Europe.
Does anyone know something about this? Am K true? That the 8/256GB model is the 'global' version of the Mi9 TE?
If anyone knows something about this please let me know!
No band 20 on either TE versions, as far as I'm aware...
Where did you read this?
On some websites written in my mother language (Hungarian). They were totally sure about the B20 in the 8/256GB model
csekebenji said:
On some websites written in my mother language (Hungarian). They were totally sure about the B20 in the 8/256GB model
Click to expand...
Click to collapse
Not sure then, I've got the 12GB on order. Would be interested to know this for sure...
Guys just look at the asian china site. In the specification of MI9 TE there is no LTE Band 20 .... so dont do this mistake when you live in europe..... you never can use LTE with this china versions of MI9 in europe .....
xenix96 said:
Guys just look at the asian china site. In the specification of MI9 TE there is no LTE Band 20 .... so dont do this mistake when you live in europe..... you never can use LTE with this china versions of MI9 in europe .....
Click to expand...
Click to collapse
I can,, my provider (ee, UK) uses b3, b7 for LTE. But yeah, for most LTE won't work

Question Can you enable carrier aggregation on HK S21 Ultra G9980?

Hello,
I live in the US but purchased the Hong Kong model S21 Ultra, model SM-G9980. This model is using the Snapdragon chip set, and supports dual physical SIM. It supports LTE bands 2,4,12 yet it has not been aggregating any of the LTE bands in areas which I know a US model would.
As far as I'm aware, there is no access to a hidden network menu that will allow you to toggle carrier aggregation options.
I wanted to attempt installing the T-Mobile USA CSC, but Sammobile doesn't have any US model S21 Ultra firmware yet.
Does anyone know of a way I can enable carrier aggregation?
Update: I found the T-Mobile S21 Ultra firmware. Using a cracked version of ODIN I tried to install just the HOME_CSC for the T-Mobile variant. It immediately failed and now my phone won't even allow me into download mode again without showing "error while downloading."
I was able to bypass that and this time I filled in all the Taiwan G9980 but used the US XAA Home_CSC. This appeared to be working until the very end of the installation process when it finally said FAIL!
Update 2: I downloaded the Taiwan version of the firmware. Still not aggregating LTE. I also have a feeling 5G is not working because the phone won't aggregate the LTE anchor associated with N41 5G in my area. Really hoping to figure this out sooner than later!
Update 3: On a forum discussing the G9880 found HERE someone noted that 5G only worked in the "SIM 2" slot on that model. I switched my SIM to SIM2 and now the 5G icon is appearing, although I have checked *#0011# and noticed that it does not show any NR band connected, only Band 2 LTE. Note the photo below...
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Samsung requires all binaries to match a signature for that specific firmware so you cannot flash US Home_CSC or other files on Taiwanese S21 even though it is Snapdragon.
So far only one person has figured out how to get CA and enable US bands on Asian Snapdragon model Galaxy series phone.
Their username is Mdyche82. Check their post here, sadly he lost the SSD before he could post a howto.
eSIM?
So, I've read in several places the US N20U has eSIM. I see the eSIM control app is in stalled. But that's all I see of it. Even an article here on XDA says all N20Us have eSIM except Japan, Korea and China. Can anyone confirm? And if so, how...
forum.xda-developers.com
VICosPhi said:
Samsung requires all binaries to match a signature for that specific firmware so you cannot flash US Home_CSC or other files on Taiwanese S21 even though it is Snapdragon.
So far only one person has figured out how to get CA and enable US bands on Asian Snapdragon model Galaxy series phone.
Their username is Mdyche82. Check their post here, sadly he lost the SSD before he could post a howto.
eSIM?
So, I've read in several places the US N20U has eSIM. I see the eSIM control app is in stalled. But that's all I see of it. Even an article here on XDA says all N20Us have eSIM except Japan, Korea and China. Can anyone confirm? And if so, how...
forum.xda-developers.com
Click to expand...
Click to collapse
Thank you!
Hi @teedawgg! I work with website called cacombos.com where I have listed over 300 different devices and supported Carrier Aggregation combinations. I don't have any details from your device yet (you can contribute log to cacombos.com/contribute if you like) but I think your device doesn't have US CA combinations defined to modem firmware. Even switching firmware's doesn't change hardware combinations.
Seems second SIM slot activate 5G-support but it requires your device support 5G combinations (EN_DC) and I think HK model doesn't.
But please share QMDL log from your device to cacombos.com/contribute so then we know more what combinations your device modem support. I don't recommend buy device from other regions because this could be issue. Free to browse other devices on my site to learn more about Carrier Aggregation and Dual Connectivity supports.
teedawgg said:
Hello,
I live in the US but purchased the Hong Kong model S21 Ultra, model SM-G9980. This model is using the Snapdragon chip set, and supports dual physical SIM. It supports LTE bands 2,4,12 yet it has not been aggregating any of the LTE bands in areas which I know a US model would.
As far as I'm aware, there is no access to a hidden network menu that will allow you to toggle carrier aggregation options.
I wanted to attempt installing the T-Mobile USA CSC, but Sammobile doesn't have any US model S21 Ultra firmware yet.
Does anyone know of a way I can enable carrier aggregation?
Click to expand...
Click to collapse
Hello ! I am in Canada and I am still not convinced if I change my device for this one. But if i take one is will be the same model like you the SM-G9980. Because you can have it cheaper than directly than the company with a dual sim , another big advantage is the unlocked bootloader.
So I know that this model is directly without doing anything compatible with the carriers from the USA and Canada too for the 3G and 4G. I know that 5G is not yet compatible with. I know that the 5g bands in canada is n66 (1700) i don't know which one is for USA?
I'm curious if you have found something that works for unlocking bands network? And also if you can flash a firmware from another country? With your message it does not seem like it is possible? and what does it really bring more finally to use the SIM2? And honestly I don't care about 5G, not a lot of zones available, consuming a lot on the battery and more.. the 4G is still a lot faster.. I'm just curious about this.
Where you able to load a US firmware?
teedawgg said:
Update 3: On a forum discussing the G9880 found HERE someone noted that 5G only worked in the "SIM 2" slot on that model. I switched my SIM to SIM2 and now the 5G icon is appearing, although I have checked *#0011# and noticed that it does not show any NR band connected, only Band 2 LTE. Note the photo below...
View attachment 5210087
Click to expand...
Click to collapse
Hi, bro have u enabled CA yet or not ??? Coz m having a same problem as in ur ss it's showing CA not config 0 0 , same problem with me how to enable this CA (carrier aggregation
olkitu said:
Hi @teedawgg! I work with website called cacombos.com where I have listed over 300 different devices and supported Carrier Aggregation combinations. I don't have any details from your device yet (you can contribute log to cacombos.com/contribute if you like) but I think your device doesn't have US CA combinations defined to modem firmware. Even switching firmware's doesn't change hardware combinations.
Seems second SIM slot activate 5G-support but it requires your device support 5G combinations (EN_DC) and I think HK model doesn't.
But please share QMDL log from your device to cacombos.com/contribute so then we know more what combinations your device modem support. I don't recommend buy device from other regions because this could be issue. Free to browse other devices on my site to learn more about Carrier Aggregation and Dual Connectivity supports.
Click to expand...
Click to collapse
Hello bro can u help to enable carrier aggregation I have a s20+ 5g Canadian G986W nd m using it in india , how to enable carrier aggregation plssss help else I have to sell this nd buy the new s20 fe 5g plssss pllsssss plsssss help
FearLesS007 said:
Hello bro can u help to enable carrier aggregation I have a s20+ 5g Canadian G986W nd m using it in india , how to enable carrier aggregation plssss help else I have to sell this nd buy the new s20 fe 5g plssss pllsssss plsssss help
Click to expand...
Click to collapse
Canadian model of S20+ 5G doesn't support Carrier Aggregation used in India I think. Here is listed supported combinations: https://cacombos.com/device/SM-G986W
The Snapdragon 888 will allow aggregation of those two bands. ... There are three models of Samsung's latest: The Galaxy S21, the S21+ and the S21 Ultra.
olkitu said:
Canadian model of S20+ 5G doesn't support Carrier Aggregation used in India I think. Here is listed supported combinations: https://cacombos.com/device/SM-G986W
Click to expand...
Click to collapse
R u sure na ??? I'm going to sell this phone if tmrw if u r sure
williamtim said:
The Snapdragon 888 will allow aggregation of those two bands. ... There are three models of Samsung's latest: The Galaxy S21, the S21+ and the S21 Ultra.
Click to expand...
Click to collapse
Make sure you have correct region device because different region device support different combinations. These are defined to modem firmware. Best way buy own region device. Help me to keep cacombos.com updated by sending your device log to cacombos.com/contribute.
FearLesS007 said:
R u sure na ??? I'm going to sell this phone if tmrw if u r sure
Click to expand...
Click to collapse
I'm sure. Good idea sell it and buy own region device.
olkitu said:
Make sure you have correct region device because different region device support different combinations. These are defined to modem firmware. Best way buy own region device. Help me to keep cacombos.com updated by sending your device log to cacombos.com/contribute.
I'm sure. Good idea sell it and buy own region device.
Click to expand...
Click to collapse
If we change region (CSC) then it will support my sim CA ????? IF YES plsss guide me how can change csc , to INDIAN
olkitu said:
Canadian model of S20+ 5G doesn't support Carrier Aggregation used in India I think. Here is listed supported combinations: https://cacombos.com/device/SM-G986W
Click to expand...
Click to collapse
bro i have same issue with those 2 guys in the post. I have unlocked s21+ purchased from samsung.com model SM_G996U1 and im suing this device in Korea trying to use band 38 as CA. korea telecom uses 3as main and 8 as sub so 3-8band configuration should work as long as i know about s21 uses all band configuration but mine still says ca-not config 00 and only shows LTE not LTE+. help me
moksjm said:
bro i have same issue with those 2 guys in the post. I have unlocked s21+ purchased from samsung.com model SM_G996U1 and im suing this device in Korea trying to use band 38 as CA. korea telecom uses 3as main and 8 as sub so 3-8band configuration should work as long as i know about s21 uses all band configuration but mine still says ca-not config 00 and only shows LTE not LTE+. help me
Click to expand...
Click to collapse
US model of Samsung doesn't support 38-3 CA combination. I don't have exactly your model combinations so you can contribute your device to https://cacombos.com/contribute
But I think your model very close for these:
S21 Ultra 5G US: https://cacombos.com/device/SM-G998U1
S21 US: https://cacombos.com/device/SM-G991U
Hello guys,
I might be able to help you guys out. I had this same issue with my S21 ultra bought from samsung us store but was able to find a work around. Not sure If this would work for you guys but you might as well give it a try. You will need to download QPST, QXDM and have samsung and qualcomm drivers installed.
1. Make sure to have usb debugging on
2. Connect phone to usb and open dialer type *#0808# and select RMNET+DM+MODEM+ADPL(MDM) and leave it there
3. Open QPST and add new port. ( you should see the phone showing up in one of the COM ports ) add this port.
4. Launch EFS Explorer (Start Clients menu)
5. Select phone port that shows an ESN. ( the one added before ) it should take a moment to load
6. Navigate to / nv / Item_files / modem / lte / rrc / cap folder
7. Backup the "prune_ca_combos" file to our computer
8. Delete this file from the phone and reboot.
You should be getting LTE+ after reboot. Let me know if this helped you guys out. @moksjm @FearLesS007 @teedawgg @Max128
teedawgg said:
Hello,
I live in the US but purchased the Hong Kong model S21 Ultra, model SM-G9980. This model is using the Snapdragon chip set, and supports dual physical SIM. It supports LTE bands 2,4,12 yet it has not been aggregating any of the LTE bands in areas which I know a US model would.
As far as I'm aware, there is no access to a hidden network menu that will allow you to toggle carrier aggregation options.
I wanted to attempt installing the T-Mobile USA CSC, but Sammobile doesn't have any US model S21 Ultra firmware yet.
Does anyone know of a way I can enable carrier aggregation?
Click to expand...
Click to collapse
teedawgg said:
Update 3: On a forum discussing the G9880 found HERE someone noted that 5G only worked in the "SIM 2" slot on that model. I switched my SIM to SIM2 and now the 5G icon is appearing, although I have checked *#0011# and noticed that it does not show any NR band connected, only Band 2 LTE. Note the photo below...
View attachment 5210087
Click to expand...
Click to collapse
The SM-G9980 Hong Kong variant is a unique model. It's not possible to flash most firmware to this device, the only alternatives are CHC (China) and BRI (Taiwan). At this time regardless of the firmware you flash your device isn't capable of enabling CA or 5G services. If it were me I would flash the original CSC (TGY) as it much more user friendly than the Taiwan or China firmware.

Samsung S20 FE SM-G781B/DS issues with 5G

I have a grey import South East Asian variant of this phone. I'm using it in Australia on Optus 5G network and I'm not seeing 5G?
In the SIM card settings it's set to 5G/LTE/3G/2G Auto but I only ever see 4G+ at best.
Do they use different 5G bands in SE Asia compared to Australia? If so is there anyway to get the 5G to work here in Australia?
ballmead said:
I have a grey import South East Asian variant of this phone. I'm using it in Australia on Optus 5G network and I'm not seeing 5G?
In the SIM card settings it's set to 5G/LTE/3G/2G Auto but I only ever see 4G+ at best.
Do they use different 5G bands in SE Asia compared to Australia? If so is there anyway to get the 5G to work here in Australia?
Click to expand...
Click to collapse
Maybe you don't have 5G reception there. But there is a new firmware - maybe that will help
Download Samsung Galaxy S20 FE 5G SM-G781B OPS Australia (Optus) G781BXXS3CUF1 firmware
Fast download latest Samsung Galaxy S20 FE 5G firmware SM-G781B from Australia (Optus) with G781BXXS3CUF1 and Android version 11
www.sammobile.com
Yes, it's definitely in a 5G area as my work colleagues receive 5G with the same SIM. Would this firmware work with my Dual SIM version?
before flashing any firmware have a look at this app, I've not used it but others say it's helped them out.
Samsung Band Selection - Apps on Google Play
This app will help you access hidden network settings for forcing band selection
play.google.com
there's definitely a chance that the bands the phone prefers to use don't exist where you are. you should do some research about what 5G bands that model number supports and about what Optus and Australia in general supports. 5G bands are weirdly named so be careful, hopefully you'll find some overlap.

Question Flashing North American CSC on rooted HK SD S21 Ultra (SM-G9980)

Hello everyone,
Firstly, I'm wondering if anyone is using the Hong Kong (TGY CSC) S21 Ultra (G9980) in North America or more specifically, Canada. Without any modifications to the firmware, do you have Wifi Calling, VoLTE, 5G working
Secondly, is it possible to flash a North American CSC (eg. XAA or XAC) onto a rooted G9980, since it also has a Snapdragon chip?
I would like to be able to use the dual-sim hong kong model of the S21 Ultra here in Canada. I have read that others in places like Australia have had success with getting these features working (5G, Wifi Calling, etc) when they inserted their SIM into slot 2.
Thank you all in advance.
balsaadi said:
Hello everyone,
Firstly, I'm wondering if anyone is using the Hong Kong (TGY CSC) S21 Ultra (G9980) in North America or more specifically, Canada. Without any modifications to the firmware, do you have Wifi Calling, VoLTE, 5G working
Secondly, is it possible to flash a North American CSC (eg. XAA or XAC) onto a rooted G9980, since it also has a Snapdragon chip?
I would like to be able to use the dual-sim hong kong model of the S21 Ultra here in Canada. I have read that others in places like Australia have had success with getting these features working (5G, Wifi Calling, etc) when they inserted their SIM into slot 2.
Thank you all in advance.
Click to expand...
Click to collapse
I have the same device here in California. Wifi Calling, VoLTE work fine with my service provider T-mobile. Carrier Aggregation and 5G won't work on the device. Also it's not possible to flash any US Firmware on your phone.
balsaadi said:
Hello everyone,
Firstly, I'm wondering if anyone is using the Hong Kong (TGY CSC) S21 Ultra (G9980) in North America or more specifically, Canada. Without any modifications to the firmware, do you have Wifi Calling, VoLTE, 5G working
Secondly, is it possible to flash a North American CSC (eg. XAA or XAC) onto a rooted G9980, since it also has a Snapdragon chip?
I would like to be able to use the dual-sim hong kong model of the S21 Ultra here in Canada. I have read that others in places like Australia have had success with getting these features working (5G, Wifi Calling, etc) when they inserted their SIM into slot 2.
Thank you all in advance.
Click to expand...
Click to collapse
I have done this crossflash - you can use the HOME_CSC but the full csc will abort due to a pit file mismatch - does not enable 5g bands- think that's a function of the modem config which as yet I have been unable to bypass security to crossflash - CP file..
I'm going to extract a US rom and see if it can be copied in root to overwrite the modem

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