no 5g connection - Samsung Galaxy S21 Questions

i buy s21 ultra from Austria with ATO csc and i live in Italy but i can't connect to 5g. it's possible to blame both the csc?

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Unlocked Vodafone Galaxy S6 EDGE LTE Bands

I am able to buy a Vodafone Galaxy S6 Edge Green (activated and sim unlocked) from Germany. I believe the model number should be SM-G925FZGFVD2 but the online store gives this model number: 00301111 and EAN: 8806086935906
http://www.sotel.de/samsung-galaxy-...rün-ohne-simlock-ohne-vertrag--p-269642.html
There is also an unbranded model which is out of stock: SM-G925FZGEDBT
I know that SM-G925FZGEDBT supports all the LTE bands we have in Hong KOng.
In Hong Kong the LTE bands supported are 900mhz, 1800mhz and 2600mhz
However, Vodafone ( SM-G925FZGFVD2 / EAN: 8806086935906) supports 1800mhz.
My question is if the phone is unlocked and can be used in any country will the phone work in 2600mhz also along with 1800mhz when I use in Hong Kong?
Just wondering if the Vodafone Galaxy S6 Edge is unlocked then it should support the same bands as the unbranded model in Germany right?
This is the first time I will be buying an unlocked phone from overseas so I have no prior experience. Can anyone shed some light or experience in this matter?
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Use with Vodafone in the UK

Hello,
If I put my Vodafone UK sim in the Vodafone moto z, would it work in the UK?
And if so, which LTE bands does it support?
Many thanks
Robert

S21 ultra G9980 - does the 5G work in Australia?

I had the S20 ultra G9880 in Australia and the 5G was blocked after an update in August 2020. I am wondering if anyone in Australia has the 9980 S21 ultra hong kong version and on Telstra or Optus and 5G is working?
Please help
I do not think it will work.
Network compatibility​
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www.kimovil.com
cheetah2k said:
I had the S20 ultra G9880 in Australia and the 5G was blocked after an update in August 2020. I am wondering if anyone in Australia has the 9980 S21 ultra hong kong version and on Telstra or Optus and 5G is working?
Please help
Click to expand...
Click to collapse
Same problem....I had the s20 Ultra and it stopped working on Telstra. Got a new s21 in the hope it would be fine and still nothing. Checked my plan with Telstra and they tell me 5g is enabled.... The phone has b78 band but still nothing. Just been a big waste of money
Mittesh said:
Same problem....I had the s20 Ultra and it stopped working on Telstra. Got a new s21 in the hope it would be fine and still nothing. Checked my plan with Telstra and they tell me 5g is enabled.... The phone has b78 band but still nothing. Just been a big waste of money
Click to expand...
Click to collapse
Damn.... I really don't like the Exynos 2100. so laggy in games. looks like I'll just have to sell my Exynos S21 Ultra and get maybe the Xiaomi 11 Ultra or something similar
I recently purchased this model for the snapdragon processor and can confirm that Telstra 5G network does not work. This was also confirmed by Telstra who said it is not a supported model, but in future, it could be allowed. ETA is unknown on this. Disappointing to say the least.
I Installed the latest Samsung update today and now have a 5G connection!
Denno76 said:
I Installed the latest Samsung update today and now have a 5G connection!
Click to expand...
Click to collapse
Great mate
Thanks for the info.
Give us some more details , like
Any other updates before this?
Change carrier?
Change CSC
Network configuration
Australia 5G bands
5G: Bands n1, n3, n5, n7, n8, n20, n28, n66, n38, n40, n41, n77, n78,
But only N78 is in use
China 5G bands
5G: Bands n1, n5, n41, n78, n79
MAX 404 said:
Great mate
Thanks for the info.
Give us some more details , like
Any other updates before this?
Change carrier?
Change CSC
Network configuration
Australia 5G bands
5G: Bands n1, n3, n5, n7, n8, n20, n28, n66, n38, n40, n41, n77, n78,
But only N78 is in use
China 5G bands
5G: Bands n1, n5, n41, n78, n79
Click to expand...
Click to collapse
Hey @MAX 404
Previously installed the regular Samsung updates as they came through. I noticed I had a carrier update on my note 9, so manually checked for an update on my S21 ultra.
Carrier is Telstra in Australia. I've attached a screenshot of Software information for reference.
I believe Telstra use n78 band which was blocked on the SM-G9980 model when I initially got the phone.
Hope it helps for those wanting a snapdragon S21 ultra.
Denno76 said:
Hey @MAX 404
Previously installed the regular Samsung updates as they came through. I noticed I had a carrier update on my note 9, so manually checked for an update on my S21 ultra.
Carrier is Telstra in Australia. I've attached a screenshot of Software information for reference.
I believe Telstra use n78 band which was blocked on the SM-G9980 model when I initially got the phone.
Hope it helps for those wanting a snapdragon S21 ultra.
Click to expand...
Click to collapse
Hi
thanks for the info it will for sure help other like you
Definitely had to be related with the N78 band , is the only band available "down under" for 5G
Great is working!!

unlock 5g band n78

Hi!
I want to buy an Lg v60 in ebay, to use outside of usa. In my country, 5g band is n78, but the usa version don't have this band. Can I unlock 5g bands or make a crossflash to european firmware to use 5g?
greetings
No hardware support for n78 band

Q: Is it possible to make the telephone signal work?

Hello.
I have a "Not for sale" Samsung Galaxy 21 5G (SM-G991U1). Is it possible to make the telephone signal work?
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