Problem with S21 Olympic Edition G991Q - Samsung Galaxy S21 Questions

thanks everyone in advance ... i'm not very experienced, and i don't want to do any damage ... i'm the owner of a s21 olympic edition.
in europe he does not take very well and has problems with languages. is far behind with the UI and firmware updates .... is there a possibility to use a ROM or other stock firmware always with snapdragon?

Sadly there is no solution out there. The Olympic edition is sadly nothing more than a marketing gag which is not very good supported by samsung. There is no real band-support for worldwide frequencies for example. And with one Ui 4.0 they got rid of the service menu where you could have changed the bands.
Do you having no issues with 5g or 4g bands?

Related

[Q] Where to buy Galaxy S II LTE?

Hi, I am living close to Europe and am trying to find the Galaxy S II LTE. I have heard its not planned to be released in the US anytime soon but that it is (has?) planned to be sold in Eur. I know that Rogers (carrier in Canada) will be supporting this phone but i get the impression that it will be locked phones only for Rogers customer. Does anyone know of online places that do/will carry unlocked versions of this phone? (in Eu, US, or Canada)
Any suggestions would be appreciated.
Cheers,
-Gaiko
you're going to have to end up waiting until it's released in your region. it doesn't look like any region (americas/europe/asia) are going to be sharing LTE bands.
boondoc said:
you're going to have to end up waiting until it's released in your region. it doesn't look like any region (americas/europe/asia) are going to be sharing LTE bands.
Click to expand...
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What about non LTE? That is, using the rest of the phone in various areas. I ask because I travel most of the year so using the phone just in one place isn't an option for me (so the LTE aspect is less important to me).
I'll wait for Galaxy S3, it will have the NFC chip (beside the usual hardware upgrades).
I really don't care about download speed on a phone, but I'm very pissed that Bell will relaunch the S2 LTE with an NFC chip. The only think that makes it up is the screen size, 4.3" is the max I can use and the new LTE phone will have a 4.5" screen. I still cannot believe Samsung pulled a fast one like that on all of us and removed the NFC chip last minute.

which honor 9 model?

Hi. I have a galaxy s8+ which I am thinking of selling to get this phone - mainly because of treble support and the s8+ is too big! I was going to get the 6gb/128gb version which is great value on ali express. I know the Chinese version doesn't have band 20 but that doesn't matter on EE in the UK.
However I wanted to check whether there are other issues with not getting the European version of the honor 9? Does the Chinese version support the new aosp treble based Rom the devs have built? The thread seems vague on this issue. Other there any other issues with the Chinese version?
Appreciate your help.
As far as i'm aware, you can actually re brand the Chinese variant to EU.
Not sure if the version of android on it has Google Play services, or an English language selection, but language packs can be downloaded.
BUT! you will get the OS updates before us lot with EU versions.... who are still stuck on B182, China have got B360 which is oreo.
Either way, its a good buy, destroys the s8 in benchmarks, and just the right size to not be too small or too big in the hand.
There 3 differents STF Chinese honor 9:
AL00
AL10
TL10
I've got an AL00 rebranded to L09 and it's working great, like an European model but without LTE BANDS 7(2600) & 20(800).
Thanks for the responses. I thought the Chinese variants of the honor 9 were the same as Xiaomi - only missing band 20? I'm on EE which doesn't need band 20 but I believe does need 2600mhz (band 7). Any ideas? Thanks
https://m.gsmarena.com/compare.php3?idPhone1=8704&idPhone2=8704#europe,al00
You could change phone version on this link, I think LTE BANDS are corrects but there is errors on size and colors.
Thanks. EE state that most of their 4g coverage is with band 3 so should be Ok! Thanks for the responses guys.
I wouldn't expect huawei to use a different LTE chip in each phone, that would require 2 different versions of the kirin 960, which wouldn't be in the interests of the development cost of the phone.
I'd assume its an OS limitation, since AL10/100 firmwares will run on L09 models after rebranding, and vice-versa.
ambitiousButRubbish said:
I wouldn't expect huawei to use a different LTE chip in each phone, that would require 2 different versions of the kirin 960, which wouldn't be in the interests of the development cost of the phone.
I'd assume its an OS limitation, since AL10/100 firmwares will run on L09 models after rebranding, and vice-versa.
Click to expand...
Click to collapse
Thanks for that
ambitiousButRubbish said:
I wouldn't expect huawei to use a different LTE chip in each phone, that would require 2 different versions of the kirin 960, which wouldn't be in the interests of the development cost of the phone.
I'd assume its an OS limitation, since AL10/100 firmwares will run on L09 models after rebranding, and vice-versa.
Click to expand...
Click to collapse
I'd like it to be true.
Do baseband is inside Kirin 960 cpu chip or in another chip?
The way I see it they ship differents variations with differents nand & ram sizes, so maybe they could switch others things without adding tremendous producing cost.
Or they are the same but phoned still keep their original LTE bands over the publicly available rebranding guides.

Is it possible to install stock S21 ROM on S21 AT&T (USA) version?

I am thinking of getting an S21 from AT&T because of the deal they have right now, but I don't like AT&T bloatware. I'm a noob when it comes to phone firmware and such, so I'm not sure what is or isn't possible.
My understanding is as follows:
Carrier unlock is possible via AT&T website to use other carrier SIM cards.
Bootloader unlock is not possible on AT&T devices (starting at V2 seemingly?).
I'm just not clear if you need an unlocked bootloader to flash the stock S21 ROM on an AT&T device. If not needed, what is the point of unlocking the bootloader, just for root?
Any clarity is appreciated.
You can use "patched ODIN" to do flash "U1" firmware, which removes bloatware.
Not sure about the bootloader, I think you're correct on that.
I flashed an Xfinity Mobile S21 (carrier unlocked by them) to U1 but so far the phone is refusing to use the proper carrier settings for VoWIFI (I have a VZW sim in it now). It worked for 1-2 weeks previously. Everything else seems to work properly including VoLTE.
I'll probably switch back to Xfnity Mobile to get VoWIFI working again.
Thanks for the response.
can I ask something related? I got my Samsung S21 from Amazon unlocked and I'm in International market. the phone has esim capability but it's locked up. my question is (can) I flash international firmware or let's say the one being sold in the middle east? I'm stuck with single sim which is pretty annoying. what do you guys recommend
mohawahba said:
can I ask something related? I got my Samsung S21 from Amazon unlocked and I'm in International market. the phone has esim capability but it's locked up. my question is (can) I flash international firmware or let's say the one being sold in the middle east? I'm stuck with single sim which is pretty annoying. what do
Click to expand...
Click to collapse
My understanding is that the international firmware is not compatible with the US phones because the US version uses the Qualcomm Snapdragon processor, whereas the international phones use the Exynos chip. I think you're stick with single SIM, unfortunately.
quadrun1 said:
My understanding is that the international firmware is not compatible with the US phones because the US version uses the Qualcomm Snapdragon processor, whereas the international phones use the Exynos chip. I think you're stick with single SIM, unfortunately.
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Click to collapse
the snapdragon version is only sold in the US solely?
"International and Korea models of the S21 utilize the Exynos system-on-chip, while the U.S., Canadian, Chinese, Taiwanese, Hong Kong and Japanese models utilize the Qualcomm Snapdragon 888."
Samsung Galaxy S21 - Wikipedia
en.wikipedia.org
quadrun1 said:
"International and Korea models of the S21 utilize the Exynos system-on-chip, while the U.S., Canadian, Chinese, Taiwanese, Hong Kong and Japanese models utilize the Qualcomm Snapdragon 888."
Samsung Galaxy S21 - Wikipedia
en.wikipedia.org
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so flashing the HK to the US G991U1 model applicable? I need to activate eSIM to get dual sim working. also volte doesn't work for me at all.
Hello , can I ask a related question, I've an unlocked s21 5g with the Three carriers SM-G991B .. Can I install the global version ??

Question Sony Xperia 1 iv compatible with T-Mobile USA ?

Hi,
has anyone experience with this Phone in the US ?
I having a -Mobile (USA) card in it and have mostly no Cell service, and if a Cell service than only 2 G
Thanks for your feedback
looking at
Sony Xperia 1 IV - Full phone specifications
www.gsmarena.com
T-Mobile network
Learn about coverage and technologies of the T-Mobile network, including a 5G and 4G LTE Coverage map, device compatibility, and more.
www.t-mobile.com
Cheat sheet: which 4G LTE bands do AT&T, Verizon, T-Mobile and Sprint use in the USA?
What are the 4G LTE bands supported by AT&T in 2019? Do they differ from the 4G LTE bands that T-Mobile uses? And what about Verizon Wireless massive 4G LTE network and its supported frequency bands? And where is Sprint left in the 4G LTE picture? What Verizon bands are currently in use? What...
www.phonearena.com
most of the things should work
I did look on this specs first, after I got it seems like there is something additional. There is one spot I get a super connection but 90% of the time weak or no Service at all. I have tried many phones before but none of them even had such bad reception. And there supposed to be even the Tmobile 5G 71 Band. It looks to me someone sold a restricted fu.... Asia version without mentioning it
go to settings and all the way down you should see your model number. Considering that USA specific is not out yet you most likely have asian one which is XQ-CT72. EU one is CT54.
But those should work on t-mobile network, most of the bands are there. And those are low bands, so longer range.
​
It runs at limited feature support. Sony disables VoWIfi for US models and many other features including Bluetooth features such as Bluetooth meta data.
Sony blames T-Mobile for limited feature set. you will need to root your phone to hack up the build to enable VoWifi and other features.
This feud between Sony and T-Mobile has been going on for the past 10 years and Sony still playing ignorant to US market.
if you don't care about such limited feature set, Xperia 1 IV should still work on TMO
I just got my phone yesterday and realized the same thing happened to me, I didn't have service where I used to but I managed to get it working by: going to settings, then network and internet, then Sims, scroll down to access point names. And two options should pop up, I changed mine to T-mobile US LTE.. And restart, which worked for me.
hnt20 said:
It runs at limited feature support. Sony disables VoWIfi for US models and many other features including Bluetooth features such as Bluetooth meta data.
Sony blames T-Mobile for limited feature set. you will need to root your phone to hack up the build to enable VoWifi and other features.
This feud between Sony and T-Mobile has been going on for the past 10 years and Sony still playing ignorant to US market.
if you don't care about such limited feature set, Xperia 1 IV should still work on TMO
Click to expand...
Click to collapse
Are you saying the the imported version of the Xperia 1 iv does support VoWifi or neither one will on any USA carrier
kuau said:
Are you saying the the imported version of the Xperia 1 iv does support VoWifi or neither one will on any USA carrier
Click to expand...
Click to collapse
that is correct, the issue is more related to Sony software rather than just the region. the only way to get VoWifi is to root your phone and disable sony software limitations
hnt20 said:
that is correct, the issue is more related to Sony software rather than just the region. the only way to get VoWifi is to root your phone and disable sony software limitations
Click to expand...
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Is there a guide for this? Not having wifi calling is the main thing holding me back from pre-ordering
Kylewolf said:
Is there a guide for this? Not having wifi calling is the main thing holding me back from pre-ordering
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Click to collapse
yeah this guide should work, its for the Xperia 1 III, I would think it would work for the IV, I just switched to goggleFI to get Wifi calling with out having to do anything.
Getting VoLTE and VoWiFi on unlisted carriers by flashing mbn file
I live in Canada and I have a BC72 (Asian version). I am struggling to get VoLTE and VoWiFi working. I know that mbn file is the key to getting IMS support and sony seems to block some carrier mbn files (only mbn in sales areas are available). So...
forum.xda-developers.com
I have been using the XQ-CT72 here in michigan on GoogleFi, which is basically t-mobile, in my town where I live, I get 5G without doing anything to the phone, but with that said, I work 20 miles out in rural area and apparently from my research tmobile use band 71 for 5G in rural areas, I can get LTE+ but no 5g at work, my Pixel 6 pro can get 5g but its like 1 to 2 bars that`s it, but with my sony I get full bars of better signal on LTE+ with my Sony, since the Sony is missing the n71 band for 5G, but I`m fine with what I get, since at work I` m on wifi anyways, I`m happy with my purchase, I originally had the US model on pre-order and the release date was pushed back to Sept. 22-23, so I cancelled my pre-order and bought a new one on ebay for 1069.00 compared to sony wanted 1599.00 for US mode
EDIT: I ended up send it back to seller, the 5g icon was not really 5g, if you're in the USA I would wait and buy the USA version, which I pre-ordered from Sony website, expected ship date is 22-23
moving to GoogleFI is the best option to use this phone in the USA. it will utilize Tmobile USA and have all feature enables.
Can anyone comment on Verizon compatibility with this device?
If really like to save some money and not buy the bootloader locked na version (if locked is still a thing)
Thanks
svntsvn said:
Can anyone comment on Verizon compatibility with this device?
If really like to save some money and not buy the bootloader locked na version (if locked is still a thing)
Thanks
Click to expand...
Click to collapse
Only way to know for sure it to just buy it and try it for your usecases. Just buy it somewhere with a good return policy. I bought mine on Ebay with a 30-day return policy and so far it works fine on AT&T. Just make sure you do the trick where you disable dual-sim. (Google the details, it's somewhere here on XDA or on Reddit).
I bought my USA variant phone a week ago, and everything on T-Mobile works with the exception of Wi-Fi calling. The only alternative we have is to stop using T-Mobile and switch over to Google fi which does support Wi-Fi calling. Other than that my phone is flying super smooth and with fast performance like I've never believed compared to my old LG v30 Plus. I'm definitely impressed with this phone.
svntsvn said:
Can anyone comment on Verizon compatibility with this device?
If really like to save some money and not buy the bootloader locked na version (if locked is still a thing)
Thanks
Click to expand...
Click to collapse
I'm using mine (XQ-CT62) in the Verizon network. Reception is not the best in the area where I'm but it works with no problem
Is that a coverage thing most likely, or the device itself? Rural area?
svntsvn said:
Is that a coverage thing most likely, or the device itself? Rural area?
Click to expand...
Click to collapse
From a technical point of view, the phone should work on all carriers in the USA without issues, (with the exception of the Sony/T-Mobile Wi-Fi Calling issue that forces those who want Wi-Fi calling to switch to Google Fi, Mint Mobile, and other MVNOs).
Whatever service is in the area should work. Verizon will provision your phone to work with it's network. CDMA based carriers are supported per Sony's phone settings, so I would just go for it.

Question 5G support with all compatible network

Hi there,
Like many other customers who does not live in countries where the Google pixel 6 has the 5G unlocked, I was hoping that Android 13 would unlock this.
I saw on some posts that the Beta version of Android was unlocking this "feature".
It's quite a shame that google chooses to lock it only to specific countries. My network provider uses the same bands as some other eligible countries provider but I can't get 5G because of what ?
At least it would be nice if google explains their decision.
I know some Google employee here and their devices have 5G unlocked on their phone (being in the same provider as I am).
They had no idea how I could unlock it on my phone though.
Not having 5G isn't that big of a deal with 4G big good enough for most use. But that's a pity it's being taken away from paying customers for no specific reason.

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