Hello,
I have bought branded s10 - Vodafone UK. I will change CSC code to remove Vodafone branding from device and I am going to use Samkey. I live in Great Britain so default csc code for my region is XEU. I am familiar with Samsung and years ago I made a research and case looks a little bit complicated. New phones sold directly from Samsung come with BTU csc code, but phones from resellers come with XEU csc. Additionally I experienced on s9 that in Odin flashing BTU resulted XEU. Very strange. There are a lot of threads with question about difference between XEU and BTU with always the same answer - it depends from where phone come. That's quite simple however still very strange.
Anybody has never explain what's the difference in software and services between XEU and BTU. What's the real difference between both of them?
Should I flash XEU or BTU? And why XEU or BTU?
If I know any other country doesn't have more than one csc for non branded Samsung's. Why Samsung released two different csc for UK?
It's really strange. Currently changing csc in samkey require credit so there is no sense check all csc just to see how them works. If you have knowledge what's going on please explain that.
Grimm-reaper said:
Hello,
I have bought branded s10 - Vodafone UK. I will change CSC code to remove Vodafone branding from device and I am going to use Samkey. I live in Great Britain so default csc code for my region is XEU. I am familiar with Samsung and years ago I made a research and case looks a little bit complicated. New phones sold directly from Samsung come with BTU csc code, but phones from resellers come with XEU csc. Additionally I experienced on s9 that in Odin flashing BTU resulted XEU. Very strange. There are a lot of threads with question about difference between XEU and BTU with always the same answer - it depends from where phone come. That's quite simple however still very strange.
Anybody has never explain what's the difference in software and services between XEU and BTU. What's the real difference between both of them?
Should I flash XEU or BTU? And why XEU or BTU?
If I know any other country doesn't have more than one csc for non branded Samsung's. Why Samsung released two different csc for UK?
It's really strange. Currently changing csc in samkey require credit so there is no sense check all csc just to see how them works. If you have knowledge what's going on please explain that.
Click to expand...
Click to collapse
if you flash a CSC in Odin and it changes from what you thought you were flashing to something else, then its a multi csc file and the SIM in your phone is telling the phone to go to that CSC.
That's right in almost all case. My region UK is the only one exception with two csc XEU and BTU. XEU comes from resellers, Samsung sales phones with BTU csc code localy. Nobody knows why we have got two different csc for our country and what's the difference between both.
Grimm-reaper said:
Hello,
I have bought branded s10 - Vodafone UK. I will change CSC code to remove Vodafone branding from device and I am going to use Samkey. I live in Great Britain so default csc code for my region is XEU. I am familiar with Samsung and years ago I made a research and case looks a little bit complicated. New phones sold directly from Samsung come with BTU csc code, but phones from resellers come with XEU csc. Additionally I experienced on s9 that in Odin flashing BTU resulted XEU. Very strange. There are a lot of threads with question about difference between XEU and BTU with always the same answer - it depends from where phone come. That's quite simple however still very strange.
Anybody has never explain what's the difference in software and services between XEU and BTU. What's the real difference between both of them?
Should I flash XEU or BTU? And why XEU or BTU?
If I know any other country doesn't have more than one csc for non branded Samsung's. Why Samsung released two different csc for UK?
It's really strange. Currently changing csc in samkey require credit so there is no sense check all csc just to see how them works. If you have knowledge what's going on please explain that.
Click to expand...
Click to collapse
usa also has multiple csc for unlocked devices.. the usa U1 (samsung direct models) have most to all the same csc that the carrier U models have.. for example theres xaa xas xac gcf then all the carriers also such as vzw spr att tmo you get the point.. usually the samsung direct has less bloat but also sometimes certain carrier features might not work such as wifibcalling for example.. usually ull be ok tho..
i suggest looking into chimera tool.. most devices r supported to change csc for free after ubpurchase a license which might b more beneficial in the long run instead of always purchasing samkey credits and you can try em all n see what works best for u.. id check if that features availabls for ur device first tho
Grimm-reaper said:
That's right in almost all case. My region UK is the only one exception with two csc XEU and BTU. XEU comes from resellers, Samsung sales phones with BTU csc code localy. Nobody knows why we have got two different csc for our country and what's the difference between both.
Click to expand...
Click to collapse
i think most if not all since S8 contain multi-csc lol
Grimm-reaper said:
That's right in almost all case. My region UK is the only one exception with two csc XEU and BTU. XEU comes from resellers, Samsung sales phones with BTU csc code localy. Nobody knows why we have got two different csc for our country and what's the difference between both.
Click to expand...
Click to collapse
you probably have a lot more than 2 lol.. usually each carrier has a csc.. chk ur partitions for example.. they might b in product or odm or somewhere in system.. or get phone info apk should also list them
elliwigy said:
you probably have a lot more than 2 lol.. usually each carrier has a csc.. chk ur partitions for example.. they might b in product or odm or somewhere in system.. or get phone info apk should also list them
Click to expand...
Click to collapse
My mistake. Two different csc for unbranded devices. BTU - directly from Samsung. XEU - unbranded phones from resellers like Amazon. I don't understand why they are different. I have flashed BTU and my phone switched to XEU. Yes BTU is multi OXM.
Grimm-reaper said:
My mistake. Two different csc for unbranded devices. BTU - directly from Samsung. XEU - unbranded phones from resellers like Amazon. I don't understand why they are different. I have flashed BTU and my phone switched to XEU. Yes BTU is multi OXM.
Click to expand...
Click to collapse
not sure what you mean by multi oxm since i thought oxm was a region code and not csc code necessarily..
@elliwigy,
1. Do you have a link to this Chimera tool?
2. I have a friend with a Galaxy Note 10+ and the CSC on this phone is set to TGY (Hong Kong).
If I understand correctly, call recording is blocked due to this CSC.
Can he use Chimera to change the CSC, and enable call recording?
ericgl said:
@elliwigy,
1. Do you have a link to this Chimera tool?
2. I have a friend with a Galaxy Note 10+ and the CSC on this phone is set to TGY (Hong Kong).
If I understand correctly, call recording is blocked due to this CSC.
Can he use Chimera to change the CSC, and enable call recording?
Click to expand...
Click to collapse
It's a tool that isn't free https://chimeratool.com/en
SAMKEY Code Reader SERVER 1, 2, or 3 CREDIT Packs
elliwigy said:
usa also has multiple csc for unlocked devices.. the usa U1 (samsung direct models) have most to all the same csc that the carrier U models have.. for example theres xaa xas xac gcf then all the carriers also such as vzw spr att tmo you get the point.. usually the samsung direct has less bloat but also sometimes certain carrier features might not work such as wifibcalling for example.. usually ull be ok tho..
i suggest looking into chimera tool.. most devices r supported to change csc for free after ubpurchase a license which might b more beneficial in the long run instead of always purchasing samkey credits and you can try em all n see what works best for u.. id check if that features availabls for ur device first tho
Click to expand...
Click to collapse
Unless you have a large number of phones you need to change csc for its way less expensive to use Samkey. I found a seller onebay selling 1 and 2 credits which makes it even cheaper. eBay seller name is stai30 you can find his items at link below
1 Credoit
http://www.ebay.com/itm/283850219804
2 credits
http://www.ebay.com/itm/283854077843
3 credits
http://www.ebay.com/itm/283849640785
---------- Post added at 07:20 AM ---------- Previous post was at 07:16 AM ----------
ericgl said:
@elliwigy,
1. Do you have a link to this Chimera tool?
2. I have a friend with a Galaxy Note 10+ and the CSC on this phone is set to TGY (Hong Kong).
If I understand correctly, call recording is blocked due to this CSC.
Can he use Chimera to change the CSC, and enable call recording?
Click to expand...
Click to collapse
Chimera is expensive and you have to re subscribe. Also samkey team is way more current with updates and you can even buy 1 credit or 2 credits cheap from ebay seller stai30.
mishaelwillo said:
Unless you have a large number of phones you need to change csc for its way less expensive to use Samkey. I found a seller onebay selling 1 and 2 credits which makes it even cheaper. eBay seller name is stai30 you can find his items at link below
1 Credoit
http://www.ebay.com/itm/283850219804
2 credits
http://www.ebay.com/itm/283854077843
3 credits
http://www.ebay.com/itm/283849640785
---------- Post added at 07:20 AM ---------- Previous post was at 07:16 AM ----------
Chimera is expensive and you have to re subscribe. Also samkey team is way more current with updates and you can even buy 1 credit or 2 credits cheap from ebay seller stai30.
Click to expand...
Click to collapse
https://forum.xda-developers.com/showpost.php?p=83299523&postcount=551
mishaelwillo said:
Unless you have a large number of phones you need to change csc for its way less expensive to use Samkey. I found a seller onebay selling 1 and 2 credits which makes it even cheaper. eBay seller name is stai30 you can find his items at link below
1 Credoit
http://www.ebay.com/itm/283850219804
2 credits
http://www.ebay.com/itm/283854077843
3 credits
http://www.ebay.com/itm/283849640785
---------- Post added at 07:20 AM ---------- Previous post was at 07:16 AM ----------
Chimera is expensive and you have to re subscribe. Also samkey team is way more current with updates and you can even buy 1 credit or 2 credits cheap from ebay seller stai30.
Click to expand...
Click to collapse
you cant beat free.. and yes, there is free ways to change csc
Cheaper with Samkey
ericgl said:
@elliwigy,
1. Do you have a link to this Chimera tool?
2. I have a friend with a Galaxy Note 10+ and the CSC on this phone is set to TGY (Hong Kong).
If I understand correctly, call recording is blocked due to this CSC.
Can he use Chimera to change the CSC, and enable call recording?
Click to expand...
Click to collapse
I was able to change CSC cheaper (as low as $2.99) with samkey, i found an ebay supplier selling 1 credit and 2 credit packs. Follow links to the items below.
1 Samkey credit http://www.ebay.com/itm/283850219804
2 Samkey credits http://www.ebay.com/itm/283854077843
3 Samkey credits http://www.ebay.com/itm/283849640785
Related
Does the US, UK or Australia Samsung Pay work on Note 8 SM-N9500 or SM-N950FD models?
Anyone tested or confirmed this? With the S8's seems like it will work if you have the UAE model of the phone and you sideload the samsung pay app (not sure about the HK version). The note 8 UAE model is SM-N950FD which is also a global model so it might work on this if similarly one has the UAE firmware on it + sideloads Samsung Pay? SM-N9500 even work at all?
No one has used or uses or has tried to use Samsung Pay on SM-N9500 or SM-N950F/DS models anywhere? Can't be possible.
I have a SM-N9500, and Google Play claims Samsung Pay is not supported in my 'device country'. But indeed it is supported in the country where I leave and where my Google account is based (and by my bank). As I understand, SM-N9500 is a Chinese version (not my country), and yet Samsung Pay is well supported in China as well.
In any case, it looks like Samsung Pay will not work on this phone.
---------- Post added at 07:40 AM ---------- Previous post was at 07:36 AM ----------
On a second thought, did you try to edit build.prop to spoof your device number? The hardware platform of those models is the same as any phone supporting Samsung Pay. So I cannot think for any reason it would not work other than country support.
@younoob
did you try it? did you try different sim card and reset? did you try sideloading Samsung Pay 2.7.03 (apk from apkmirror) and Framework 2.7.51 immediately after reset?
I tried resetting my google play localization, but it did not work. So I failed to install Samsung Pay at all. My problem is, if there is ever an apk that I do not want to install from an unofficial source, that's Samsung Pay. It has direct access to credit cards...
Resetting localization will not work. Sideloading SPay is not an issue now really is it if all you want to do is confirm whether it works to start with or not. And there is nothing wrong with sideloading in general so long as you are careful with your choices.
evangelionpunk said:
Resetting localization will not work. Sideloading SPay is not an issue now really is it if all you want to do is confirm whether it works to start with or not. And there is nothing wrong with sideloading in general so long as you are careful with your choices.
Click to expand...
Click to collapse
Resetting localization indeed did not work. N9500 is a Hong Kong and China version. Any exported phone should come from Hong Kong -at least mine is. I am sure that Samsung Pay works abroad as well, no matter the country. So my guess is that if one installs and runs it in Hong Kong, then it should work in other supported countries as well. Isn't it? Maybe one can spoof the location somehow, not sure how to do that without root. Any idea?
As for sideloading, of course there is nothing wrong with it. Just, for something like Samsung Pay, you really really need to trust your apk source. A malicious person may get the original apk and somehow engineer a modification (basically send all the data to a server), and your bank cards AND identity would be totally compromised. At the best of my understanding, this can be done without any need to crack the Samsung Pay security features.
younoob said:
Resetting localization indeed did not work. N9500 is a Hong Kong and China version. Any exported phone should come from Hong Kong -at least mine is. I am sure that Samsung Pay works abroad as well, no matter the country. So my guess is that if one installs and runs it in Hong Kong, then it should work in other supported countries as well. Isn't it? Maybe one can spoof the location somehow, not sure how to do that without root. Any idea?
As for sideloading, of course there is nothing wrong with it. Just, for something like Samsung Pay, you really really need to trust your apk source. A malicious person may get the original apk and somehow engineer a modification (basically send all the data to a server), and your bank cards AND identity would be totally compromised. At the best of my understanding, this can be done without any need to crack the Samsung Pay security features.
Click to expand...
Click to collapse
Well according to what I read and some I asked, no. Samsung Pay may be localised via the model number and active sim card on first boot. You managed to spoof the model number?
https://forum.xda-developers.com/galaxy-s8/help/how-add-samsung-pay-to-sm-g950fd-dual-t3600699
You will see in above thread that the exynos model with XSG firmware is able to have the framework and samsung pay sideloaded and it works with US cards. On the Note 8's this likely means we can buy any SM-N950F/DS and do the same whereas the SM-N9500 SPay would work in HK and apparently if I read correctly HK has some more advanced SPay features... Now if only Samsung would release a 128 or 256gb mode of SM-N950F/DS already!
Actually changing the location in payments.google.com partly worked. I located myself in Hong Kong, then cleared Google Play data and rebooted the app. It took more than one day for Google to update the status, but now Samsung pay just appeared as one of my (preloaded) apps. Yet, basically only American Express will work worlwide (and Hong Kong cards). On the good side, you can successfully upload all the fidelity cards and other magnetic cards that are not related to your banks.
I did not spoof the model since the last time I checked taking root on Qualcomm note 8 looked risky and N9500 is not even mentioned in the thread. Did you get root?
---------- Post added at 09:14 AM ---------- Previous post was at 09:13 AM ----------
But I have a 128gb model, and where I live Samsung did not yet realise 128gb official models
younoob said:
Actually changing the location in payments.google.com partly worked. I located myself in Hong Kong, then cleared Google Play data and rebooted the app. It took more than one day for Google to update the status, but now Samsung pay just appeared as one of my (preloaded) apps. Yet, basically only American Express will work worlwide (and Hong Kong cards). On the good side, you can successfully upload all the fidelity cards and other magnetic cards that are not related to your banks.
I did not spoof the model since the last time I checked taking root on Qualcomm note 8 looked risky and N9500 is not even mentioned in the thread. Did you get root?
---------- Post added at 09:14 AM ---------- Previous post was at 09:13 AM ----------
But I have a 128gb model, and where I live Samsung did not yet realise 128gb official models
Click to expand...
Click to collapse
Not surprised that work as you got a HK model and enabled SPay HK. See if the same is possible for US or your own country.
A root was released just few days ago for qualcomm models that will not trip knox apparently but charge shows 80% or something.
Did you root? As they do not mention N9500 in that thread
I have 9500 hk version. It had samsung pay preloaded. My location is taiwan and using taiwan sim. When i open samsung pay it had a restore previous card option. (i used samsung pay on a previous samsung phone) i restored it but had to activate the card again. Have used it here in taiwan and no problem. The only downside is promotions on the app and store membership cards are all still hong kong.
Sent from my SM-N9500 using Tapatalk
Just flash XSA unlocked Australian firmware. Just bought a SM-N950F/DS and it has a limited version of Samsung Pay that works just like it did on my S8 950F and my S7 Edge 935F. Don't be in a hurry for updates on XSA still on August security patch but white pages works.
Panzerapple said:
Just flash XSA unlocked Australian firmware. Just bought a SM-N950F/DS and it has a limited version of Samsung Pay that works just like it did on my S8 950F and my S7 Edge 935F. Don't be in a hurry for updates on XSA still on August security patch but white pages works.
Click to expand...
Click to collapse
Can't flash XSA on N9500. What do you mean by limited version of Samsung Pay on your SM-N950F/DS? What cards/banks are working on it and what aren't?
evangelionpunk said:
Can't flash XSA on N9500. What do you mean by limited version of Samsung Pay on your SM-N950F/DS? What cards/banks are working on it and what aren't?
Click to expand...
Click to collapse
I am sorry I thought you were looking for answer for either model so I posted regarding my experiences with the F model.
Samsung Pay features work off of your devices CSC. When I first set up my Samsung Pay account it was on a S6 Active obviously a US Model. With that said my F model devices have Samsung Pay with MST support, Membership Cards and that is it for options that I can us in the US. So I get Australian promotions not US promotions on and no rewards or gift cards. I still get rewards points when I use my F models but I have to access them through my ATT Note 5 or see the points through my Gear App for my Gear S3. Basically a huge cluster f#ck and hopefully they will make Samsung Pay dependent on your SIM not your CSC I highly doubt it though.
I have a Citi Visa and Citi MC on my phone and Gear S3. Samsung did change things around so you can import cards which worked on my Note 8. When I moved from my S6 Active to S7 Edge F model I had to setup all the cards and they worked. So the guess off the top my head would be any card that currently supports Samsung Pay should work but it is Samsung Pay so it is a guess.
Panzerapple said:
With that said my F model devices have Samsung Pay with MST support, Membership Cards and that is it for options that I can us in the US. So I get Australian promotions not US promotions on and no rewards or gift cards.
Click to expand...
Click to collapse
Have you tried the XSG firmware method that apparently is reporting success? Appears to involve flashing XSG and then sideloading framework and samsung pay app after which supposedly everything works fine.
evangelionpunk said:
Have you tried the XSG firmware method that apparently is reporting success? Appears to involve flashing XSG and then sideloading framework and samsung pay app after which supposedly everything works fine.
Click to expand...
Click to collapse
Ran XSG on my S7 Edge for a while and flashed XSA. XSG you get the Ramadan calendar, no white pages and you have to screw around side loading and worry about an update breaking it. That is why I gave up on XSG it updated and broke my work around . Unless something has changed I don't recall having rewards or gift cards but that might have changed. XSA is just flash and your done Samsung pay updates with no issues. For me I need a backup device so to get all Samsung Pay features it is just as easy firing up my Note 5 to access them.
Panzerapple said:
Ran XSG on my S7 Edge for a while and flashed XSA. XSG you get the Ramadan calendar, no white pages and you have to screw around side loading and worry about an update breaking it. That is why I gave up on XSG it updated and broke my work around . Unless something has changed I don't recall having rewards or gift cards but that might have changed. XSA is just flash and your done Samsung pay updates with no issues. For me I need a backup device so to get all Samsung Pay features it is just as easy firing up my Note 5 to access them.
Click to expand...
Click to collapse
On XSG you couldn't sideload white pages? What firmware are you running on your note 8?
evangelionpunk said:
On XSG you couldn't sideload white pages? What firmware are you running on your note 8?
Click to expand...
Click to collapse
White pages is CSC dependent also. It's cooked into all the firmware and you can find it and try activating it through a Nova activity but it would never work. You can download Hiya apk which white pages is built off of but it doesn't integrate with the system like white pages does. I have fiddled with so many firmwares and Samsung Pay and Framework apk just got sick of experimenting.Running XSA and happy with the firmware and my Note 8. And if am wrong on anything I have said someone please correct me because I would like to know.
I can use Samsung Pay on my non-rooted SM-N950F/DS on AT&T as well as GoogleFi.
Tried searching for this before making this thread, and asked on some other thread but got no reply. So I figured might as well ask through here. Is it possible at all? I purchased an Asian (exynos) version and current Samsung Pay is Asian (idk which country tbh), there was a preloaded SP and I was able to install SP from Google Play store, also through an APK but I got the Asian version always, no way to remove the SP Framework. Would flashing a different CSC yield a working SP (US). Thanks.
Yes. I have 960fD and sampay works. It all depends on the country it was designed for as to whether it will work. If that country has sampay AND your banks / credit cards are supported in that country it should be ok.
For example, I have a Singapore device and AMEX works. But it isn't supported on all versions.
ekerbuddyeker said:
Yes. I have 960fD and sampay works. It all depends on the country it was designed for as to whether it will work. If that country has sampay AND your banks / credit cards are supported in that country it should be ok.
For example, I have a Singapore device and AMEX works. But it isn't supported on all versions.
Click to expand...
Click to collapse
My bank does support Samsung Pay, but since my phone is an Asian version, would a simple CSC change to US version make Samsung Pay work then?
Probably, but check. And there's nothing some about changing CSC. Search for both.
daLareid said:
My bank does support Samsung Pay, but since my phone is an Asian version, would a simple CSC change to US version make Samsung Pay work then?
Click to expand...
Click to collapse
I had the Thai CSC on the N960F, it came with Samsung pay. I just added my US card and it worked in the US. No changes needed.
clubtech said:
I had the Thai CSC on the N960F, it came with Samsung pay. I just added my US card and it worked in the US. No changes needed.
Click to expand...
Click to collapse
I had tried this first on my S7E a few years ago when I got it and it didn't work, so I didn't even bother to try something as simple as adding the card to see if it gets recognized, you're right just adding the card work, I still get the Asian ads and rewards which become moot but I don't care for that, thanks!
Does anyone know what model number is specific to Europe? All i can find is G998B but theres also G998B/DS and i have no idea what the difference is
I want to make sure i got the correct model for my region and that Samsung Pay will work etc
Is International model and European the same??
DS = Dual Sim
Oh right! I asked because the European model is listed as G998B but my model is G998B/DS and has one or two pre installed apps from Singapore so when i done an imei check it confirmed the region the model belonged to was Singapore.
I just want to know if i will experience any short comings because of this? Im in Ireland so hope it won't affect the warranty and i hope Samsung Pay still works etc
Blaalad12 said:
Oh right! I asked because the European model is listed as G998B but my model is G998B/DS and has one or two pre installed apps from Singapore so when i done an imei check it confirmed the region the model belonged to was Singapore.
I just want to know if i will experience any short comings because of this? Im in Ireland so hope it won't affect the warranty and i hope Samsung Pay still works etc
Click to expand...
Click to collapse
For what its worth ... I have a G998B/DS Latin American variant which has Samsung Pay and it does work in my home country (USA)
Blaalad12 said:
Does anyone know what model number is specific to Europe? All i can find is G998B but theres also G998B/DS and i have no idea what the difference is
I want to make sure i got the correct model for my region and that Samsung Pay will work etc
Is International model and European the same??
Click to expand...
Click to collapse
Yes, the variant is the same. Since your device had OXM you have the option to change the CSC to your particular region. DS only means the SM-G988B is a Dual Sim Variant, the FW is identical.
I bought a Galaxy S20 FE 4G (exynos) in Mexico with Telcel carrier but they are very slow on pushing updates. I see on firmware sites that almost monthly there's a new update which I don't get.
My question here is, if I flash via Odin a ROM from a different region will it affect the usability of my phone on something?
If it doesn't, which region has the less bloated ROM that I could flash? I am currently on TCE's CSC.
Thanks for the help.
No, it should not affect anything, at most it may affect your ability to have VoLTE/VoWiFi as some carriers tie it to the CSC though I have not had that issue here in Australia using it with a Telstra SIM (I switched from XSA to THL and still have full functionality as before, even a couple of extra features). Although from what I can see on SamMobile there's not really a better CSC for the multi CSC you have (OW*), the updates are all pretty terrible for the CSCs with some CSCs not getting updates in months and some being one or two months behind in terms of security patch, so it may not be worth switching anyway.
Hi all. I have the a few sm-g998b phones, rooted with magisk, and I am a bit confused about which CSC I should flash to the device (SAMKEY). I ordered the phones from Singapore and need them be more compatible with USA verizon and USA tmobile. Only using one sim per phone. Which CSC should I replace the current SIN csc with for each, and is there anything else I can do to make these phones play a bit nicer in the USA? I am currently having issues with no 5g, poor wifi calling, no updates, etc.
1. Avoid SamKEY. Do your own work.
2. Flash the HOME_CSC, or the CSC of the firmware of the carrier. HOME is usually a safer bet though.
You're going to have issues in the US until you flash the proper CSC. AFAIK, every S21U has all radios, but the CSC activates the correct one.
For the absolute safest, download the TMOB stock firm, and flash the HOME_CSC (as well as the BL, AP, etc), then put the Tmob SIM in after boot.
SapphireEX said:
1. Avoid SamKEY. Do your own work.
2. Flash the HOME_CSC, or the CSC of the firmware of the carrier. HOME is usually a safer bet though.
You're going to have issues in the US until you flash the proper CSC. AFAIK, every S21U has all radios, but the CSC activates the correct one.
For the absolute safest, download the TMOB stock firm, and flash the HOME_CSC (as well as the BL, AP, etc), then put the Tmob SIM in after boot.
Click to expand...
Click to collapse
Tmobile or any US firmware can't be flashed on any Exynos Global device.
falawefulwaffle said:
Hi all. I have the a few sm-g998b phones, rooted with magisk, and I am a bit confused about which CSC I should flash to the device (SAMKEY). I ordered the phones from Singapore and need them be more compatible with USA verizon and USA tmobile. Only using one sim per phone. Which CSC should I replace the current SIN csc with for each, and is there anything else I can do to make these phones play a bit nicer in the USA? I am currently having issues with no 5g, poor wifi calling, no updates, etc.
Click to expand...
Click to collapse
Why would you aquire the Exynos Global variant knowing your service provider isn't optimized for your firmware? Did you save money? If so I hope saved a lot otherwise it was a poor choice. Your best option is keeping the stock SIN Firmware, at least you'll get timely updates. You MIGHT get Wifi Calling and VoLTE enabled but forget about 5G and Carrier Aggregation.
Missed that you mentioned an Exynos variant. Yeah, you're ****ed. Exynos is not compatible with US bands, or at least aggregate banding.
varcor said:
Why would you aquire the Exynos Global variant knowing your service provider isn't optimized for your firmware? Did you save money? If so I hope saved a lot otherwise it was a poor choice. Your best option is keeping the stock SIN Firmware, at least you'll get timely updates. You MIGHT get Wifi Calling and VoLTE enabled but forget about 5G and Carrier Aggregation.
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Unfortunately, these phones are company. we needed root for some applications.
*don't use SAMKEY
This is a bit tricky because US is Snapdragon-based.
My best bet would be to factory reset (don't forget to backup) and flash a multi-csc Exynos ROM (OXM). This would detect the most compatible one for your US sims.
I would suggest getting the XSP for Singapore because that's the unbranded one.
Other than n71 5G band for US Cellular, I don't think you'll have much issues.
mpore14 said:
*don't use SAMKEY
This is a bit tricky because US is Snapdragon-based.
My best bet would be to factory reset (don't forget to backup) and flash a multi-csc Exynos ROM (OXM). This would detect the most compatible one for your US sims.
I would suggest getting the XSP for Singapore because that's the unbranded one.
Other than n71 5G band for US Cellular, I don't think you'll have much issues.
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"This would detect the most compatible one for your US sims" Nope, that's incorrect, Exynos Global variants aren't able to detect the most compatible US Networks. It's apples and oranges, there is zero integration for US devices.
varcor said:
"This would detect the most compatible one for your US sims" Nope, that's incorrect, Exynos Global variants aren't able to detect the most compatible US Networks. It's apples and oranges, there is zero integration for US devices.
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Thanks for correcting me. Least that's how it was for me using NZ sim on a G9980 SD variant.
mpore14 said:
Thanks for correcting me. Least that's how it was for me using NZ sim on a G9980 SD variant.
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The Exynos variants are Multi-CSC Devices, mainly for Europe, not for the US. The SM-G9980 isn't a Multi-CSC Device unlike some US Models, it's Dual-Sim. In Settings under Network Operators you can have the device select the "Best Network" but it isn't analyzing call features, it's only matching the network with the Active CSC (SIM Card).
Bro,
On the stock phone dialer key in
*#2263#
You will see the bands the 998b supports.
Now u need to check on the networks u plan to use in the US what bands are used. Not sure what u plan to do but these exynos phones should be able to roam into the US with voice n data services. Not blazing gigabits but one should be able to roam globally with these phones.