Develop Bugs

Dual Sim on Unlocked USA Version?!

I'm having doubts but c'mon! Apple has had it for the last two generations! Still an esim, but so what?
Having two numbers on one phone rocks! I know the international versions do it but when one of the numbers is on Verizon, that idea goes out the window.

That's what I want to know as well.. rocking OnePlus 7 Pro just because of dual sim

I read the US version is single esim. The F will be dual sim but will miss key US bands (again). It remains to be seen if it will have the right 5G bands for the US. It’s very annoying when apple phones have all the bands.

There is something not clear for now. In Europe, the Ultra is dual nano sim AND eSim compatible. Does it means we have 3 phone numbers?

Powergeek2017 said:
There is something not clear for now. In Europe, the Ultra is dual nano sim AND eSim compatible. Does it means we have 3 phone numbers?
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I doubt that what you've mentioned is true. Actually what most of the dealers are saying is that most of the regions will receive a hybrid sim + e-sim version. Meaning an e-sim with a hybrid slot (either adding a nano sim or a micro sd card).
But the good news is that I've bumped into a dealer on ebay selling a dual physical sim version, so actually it will be available but for selected regions.
I really don't understand their policy, the e-sim support is still not supported globally.
My guess is that they just don't want to miss something the iPhone has in their phone.

Does anyone know if the international dial sim has the right 5G bands for AT&T in the US? All the F versions of Samsung phones miss band 30, and I’m wondering if the addition of 5G will make it not matter that band 30 isn’t included. Anyone know?

Spec sheet on Best Buy website shows Exynos. That is weird! That may be dual hybrid sim (where you put in the second sim where the microsd goes).

cpufrost said:
Spec sheet on Best Buy website shows Exynos. That is weird! That may be dual hybrid sim (where you put in the second sim where the microsd goes).
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can you post a link to that

ekerbuddyeker said:
can you post a link to that
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https://www.bestbuy.com/site/samsun...unlocked-cosmic-black/6395759.p?skuId=6395759
Scroll down to features section.
I prefer the 865 over Exynos just based on past issues with performance and battery life. I'm over the rooting phase so not worried about it any more TBH.

ekerbuddyeker said:
Does anyone know if the international dial sim has the right 5G bands for AT&T in the US? All the F versions of Samsung phones miss band 30, and I’m wondering if the addition of 5G will make it not matter that band 30 isn’t included. Anyone know?
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Based on this comparison spec sheet from Techwalls, it doesn’t look like there will be an international dual sim model that will support the same 5G bands as the US models (sub 6ghz, mid band, mmwave). Maybe the SM-G9880 SM-G9888 Asian versions will have dual sim even though there’s no DS on the model # (hoping).
SM-G988F/DS (Dual-SIM Unlocked)
SM-G988BZADXSP (Cosmic Gray – 128GB Storage)
SM-G988BZKDXSP (Cosmic Black – 128GB Storage) Exynos 990 Asia (India, Singapore) 2G GSM: GSM850, GSM900, DCS1800, PCS1900
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
4G LTE: Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71
5G: Bands n2, n5, n41, n66, n7
SM-G9880
SM-G9888 Snapdragon 865 – 12GB RAM China
Hong Kong
Japan
Brazil 2G GSM: GSM850, GSM900, DCS1800, PCS1900
2G CDMA: 800, 1900 MHz
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
3G CDMA: CDMA2000, EV-DO: 800, 1900 MHz
4G LTE: Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71
5G: Bands n2, n5, n41, n66, n71, n260, n26
SM-G988U
SM-G988UZAAXAA (Cosmic Gray – 128GB Storage)
SM-G988UZKAXAA (Cosmic Black – 128GB Storage)
SM-G988UZKEXAA (Cosmic Black – 512GB Storage) Snapdragon 865 – 12GB RAM Factory Unlocked – US 2G GSM: GSM850, GSM900, DCS1800, PCS1900
2G CDMA: 800, 1900 MHz
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
3G CDMA: CDMA2000, EV-DO: 800, 1900 MHz
4G LTE: Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71
5G: Bands n2, n5, n41, n66, n71, n260, n26
Search Techwalls.com Samsung Ultra 5G for more models (sorry, new user and can’t post a url yet).

I am pretty sure you will not see any US 5G bands on Exynos models So if you want 5G in US, you will need to get Snapdragon S20 . Also Samsung likely caved in to US carriers yet again and disabled eSIM support in US Snapdragon models. There is a CNET article that states eSIM support will be enabled in a future update but US carriers will likely disable it.

Is anyone willing to buy the Korean Snapgragon S20 Ultra?

It was leaked before but now confirmed that Samsung will release the snapdragon variant of the S20 Ultra (and probably the other ones) in Korea. I'm not sure where the center of gravity is (country) as far as development for these phones, but I know North American members have to buy international anyway. Considering snapdragons are easier to develop for and in some ways superior to Exynos, does anyone think there will be a shift to purchasing these unlocked snapdragon variants? I purchased a Korean Note 8 to get 256gb and unlike the Chinese version the wireless bands are fully compatible in the U.S. (Assuming you're on AT&T or T-Mobile). I'd bet this time Verizon and Sprint would be covered by virtue of the snapdragon modems.

What's the model number of the Korean version

freeza said:
What's the model number of the Korean version
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It's SM-G988N. The Korean variants are the same as the US or European Model number but with an N instead of U or F/FD.
By the way here is a link to the geekbench results for the Korean Variant. This proves the use of the 865 in Korea.
I also found this MSN Korea Article which states the following (Translated):
"Samsung's next-generation flagship smartphone 'Galaxy S20' series is expected to be equipped with 12GB (GB) RAM and Qualcomm Snapdragon 865.
On July 1, the GSM Arena, an information technology (IT) specialized media, reported that three test results of the Galaxy S20, Galaxy S20 + and Galaxy S20 Ultra were captured at the performance test site Geekbench.
The three models identified this time are the Galaxy S20 (SM-G981N / SM-G981U), Galaxy S20 + (SM-G986N / SM-G986U) and Galaxy S20 Ultra (SM-G988N / SM-G988U). N is the Korean version, U is the US model.
In fact, GeekBench has found that all three have 12GB of RAM. At 12GB of RAM, it's three times the size of the iPhone 11 (4GB).
Also noticeable is that the Snapdragon 865 is applied as a mobile application processor (AP) for both the Galaxy S20 Korean and US models. Chinese IT blogger Ivingzhou (@Iceuniverse) posted the results of a Geekbench experiment on his Twitter. This is a good thing. ”
Until last year, Samsung Electronics had Samsung Exynos in Korea and Europe and Qualcomm Snapdragon in countries such as North America. In particular, Samsung Exynos has been applied in the domestic market, from entry-level to flagship models.
Therefore, attention is focused on the background of Samsung's adoption of Qualcomm Snapdragon instead of Exynos. Samsung Exynos series, which came to a level similar to Qualcomm Snapdragon, is said to be caused by the performance gap again compared to Snapdragon 865 in case of Exynos 990.
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Interesting. So it's better to get Korean over hong Kong?

freeza said:
Interesting. So it's better to get Korean over Hong Kong?
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Maybe. Previously there was no reason to get the Chinese version because no one was developing for it. It was bootloader unlocked, but you'd essentially be in the same position as someone with the US version. There were also South American variants that used snapdragon as well. I'm just hoping that with the introduction of a snapdragon variant in Korea, people will be more open to purchasing that one. It's a pretty affluent market that would be into custom development. So that in addition to Americans needing to buy internationally anyway creates the possibility.
I know of a few people that bought Korean variants in the past due to larger capacities (myself included) so it's not *too* far fetched.

davisdlrch said:
It was leaked before but now confirmed that Samsung will release the snapdragon variant of the S20 Ultra (and probably the other ones) in Korea. I'm not sure where the center of gravity is (country) as far as development for these phones, but I know North American members have to buy international anyway. Considering snapdragons are easier to develop for and in some ways superior to Exynos, does anyone think there will be a shift to purchasing these unlocked snapdragon variants? I purchased a Korean Note 8 to get 256gb and unlike the Chinese version the wireless bands are fully compatible in the U.S. (Assuming you're on AT&T or T-Mobile). I'd bet this time Verizon and Sprint would be covered by virtue of the snapdragon modems.
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Are the 5G bands compatible as well?

interesting the Korean versions historically always had exynos, now they went snapdragon?
guess they wanted the superior processor for themselves this year.

Based on this comparison spec sheet from Techwalls, it doesn’t look like the Korean model will support the same 5G bands as the US models (sub 6ghz, mid band, mmwave). Hopefully, this sheet isn’t complete yet.
Search Techwalls.com Samsung Ultra 5G (sorry, new user and can’t post a url yet).

Acutally I live in China but I'm currently using a Korean Variant Galaxy Note10+ 5G, as the Exynos ones have better access to custom stuffs like Magisk, Lineage OS, etc. I have the same confusion as you. Usually the Korean Variant uses Exynos proccecors but this time they went for Snapdragon 865. I'm worrying about if the Snapdragon ones are able to flash custom ROMs and Magisk. I guess I'll just wait. If those great developers start to get Magisk or Lineage OS done on Snapdragon versions, I'll just get a Korean one. If not, I guess I'd better get a Hong Kong variant or Chinese Mainland variant, as they get better 5G support in Chinese Mainland.

Boeing747x said:
Acutally I live in China but I'm currently using a Korean Variant Galaxy Note10+ 5G, as the Exynos ones have better access to custom stuffs like Magisk, Lineage OS, etc. I have the same confusion as you. Usually the Korean Variant uses Exynos proccecors but this time they went for Snapdragon 865. I'm worrying about if the Snapdragon ones are able to flash custom ROMs and Magisk. I guess I'll just wait. If those great developers start to get Magisk or Lineage OS done on Snapdragon versions, I'll just get a Korean one. If not, I guess I'd better get a Hong Kong variant or Chinese Mainland variant, as they get better 5G support in Chinese Mainland.
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Those 2 phones have distinct differences:
SM-G988N(it is Snapdragon apparently)https://browser.geekbench.com/v5/cpu/1232050
SM-G988NZAAKOO (Cosmic Gray – 256GB Storage)
SM-G988NZKAKOO (Cosmic Black – 256GB Storage) – 12GB RAM Korea
– SKT
– LG U+
– KT 2G GSM: GSM850, GSM900, DCS1800, PCS1900
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
4G LTE: Bands B1 (2100), B2 (1900), B3 (1800), B4 (AWS), B5 (850), B7 (2600), B8 (900), B12 (700), B13 (700), B18 ( 800), B19 (800), B20 (800), B25 (1900), B26 (850), B28 (700), B66 (AWS-3)
4G TDD LTE: Bands B38 (2600), B39 (1900), B40 (2300), B41 (2500)
5G: Band N78 (3500)
and the other: (Snap -China, HK...)
SM-G9880
SM-G9888 Snapdragon 865 – 12GB RAM China
Hong Kong
Japan
Brazil 2G GSM: GSM850, GSM900, DCS1800, PCS1900
2G CDMA: 800, 1900 MHz
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
3G CDMA: CDMA2000, EV-DO: 800, 1900 MHz
4G LTE: Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71
5G: Bands n2, n5, n41, n66, n71, n260, n261
sources: https://www.techwalls.com/samsung-galaxy-s20-ultra-5g-model-number-sm-g988-differences/ - lists Korean variant as Exynos, correction needed

mzsquared said:
Those 2 phones have distinct differences:
SM-G988N(it is Snapdragon apparently)https://browser.geekbench.com/v5/cpu/1232050
SM-G988NZAAKOO (Cosmic Gray – 256GB Storage)
SM-G988NZKAKOO (Cosmic Black – 256GB Storage) – 12GB RAM Korea
– SKT
– LG U+
– KT 2G GSM: GSM850, GSM900, DCS1800, PCS1900
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
4G LTE: Bands B1 (2100), B2 (1900), B3 (1800), B4 (AWS), B5 (850), B7 (2600), B8 (900), B12 (700), B13 (700), B18 ( 800), B19 (800), B20 (800), B25 (1900), B26 (850), B28 (700), B66 (AWS-3)
4G TDD LTE: Bands B38 (2600), B39 (1900), B40 (2300), B41 (2500)
5G: Band N78 (3500)
and the other: (Snap -China, HK...)
SM-G9880
SM-G9888 Snapdragon 865 – 12GB RAM China
Hong Kong
Japan
Brazil 2G GSM: GSM850, GSM900, DCS1800, PCS1900
2G CDMA: 800, 1900 MHz
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
3G CDMA: CDMA2000, EV-DO: 800, 1900 MHz
4G LTE: Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71
5G: Bands n2, n5, n41, n66, n71, n260, n261
sources: https://www.techwalls.com/samsung-galaxy-s20-ultra-5g-model-number-sm-g988-differences/ - lists Korean variant as Exynos, correction needed
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Thanks a lot for this piece of info. It seems that Korean variants always get global LTE bands support, but the 5G bands are only for Korea. In China we use 5G Bands n41, n78 and n79. So I guess I'd better get a Chinese Mainland variant or Hong Kong variant.

OnePlus 7T T-Mobile (HD1907) Unlocked usable in Europe?

Does anyone know if the OnePlus 7T T-Mobile (HD1907) is going to be usable in Europe if unlocked? I attach the relevant T-Mobile App screenshots to this post.
I tried to look it up on the internet when it comes to supported frequencies. But the www.frequencycheck.com does not list the T-Mobile (HD1907) version.
However here (http://band71.batcave.net/) HD1907 is listed together with HD1905, and that one is compatible with European bands: https://www.frequencycheck.com/mode...ual-sim-td-lte-na-128gb-hd1905-bbk-guacamoleg
All in all when it comes to supported frequencies, it looks like it will be fine.
My main concern is if unlocked T-Mobile variant will like my European SIM card and the double SIM tray.
Has anyone got some information regarding this?

Here are the frequencies on the T mobile variant oneplus 7T.
Frequency: UMTS: Band I (2100), Band II (1900), Band IV (1700/2100), Band V (850), Band VIII (900); GSM: 850 MHz, 900 MHz, 1800 MHz, 1900 MHz; LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 40, 41, 42, 46, 48, 66, 71; CDMA: 0, 1, 10
source: https://www.t-mobile.com/cell-phone/oneplus-7t

yes, the hd1905 and hd1907 support the most bands out of any 7t variant. The tmobile firmware may potentially be lacking some ims support though (eg tmo firmware is missing visible wireless ims support, but that's domestic), but you're not likely to run into any issues.
I don't have my old dump handy to compare profiles, but if you wanted to be certain you'll have maximum support, consider flashing the global firmware.

Nice!
How did you unlock the T-Mobile version 7t?

ziddey said:
yes, the hd1905 and hd1907 support the most bands out of any 7t variant. The tmobile firmware may potentially be lacking some ims support though (eg tmo firmware is missing visible wireless ims support, but that's domestic), but you're not likely to run into any issues.
I don't have my old dump handy to compare profiles, but if you wanted to be certain you'll have maximum support, consider flashing the global firmware.
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Well, I have a 1907, unlocked from the factory, everything works, except for the volte, although my provider connects to band 28, it does not connect to volte and my provider uses that network to provide its services

Yep, everything works fine, I buy dual sim tray on aliexpress, and second sim card works too

Question SM-F926U Unlocked compatible band

Please tell me the compatible bands of SM-F926U.

NETWORKTechnologyGSM / CDMA / HSPA / EVDO / LTE / 5G2G bandsGSM 850 / 900 / 1800 / 1900 CDMA 800 / 19003G bandsHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 CDMA2000 1xEV-DO4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 715G bands2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave

Question 3.45 GHz pixel 6 pro

Does the pixel 6 pro support 3.45 GHz? Looking to install rural booster.

GivIn2It said:
Does the pixel 6 pro support 3.45 GHz? Looking to install rural booster.
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Per gsmarena; Octa-core (2x2.80 GHz Cortex-X1 & 2x2.25 GHz Cortex-A76 & 4x1.80 GHz Cortex-A55)

GivIn2It said:
Does the pixel 6 pro support 3.45 GHz? Looking to install rural booster.
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I think only the Samsung Galaxy S22 series and Google Pixel 6a support the 3.45 GHz band right now, but don't hold me to that.

Lughnasadh said:
I think only the Samsung Galaxy S22 series and Google Pixel 6a support the 3.45 GHz band right now, but don't hold me to that.
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Oh think he's referring to spectrum?
In that case;
2G bandsGSM 850 / 900 / 1800 / 1900 CDMA 800 / 1700 / 1900 3G bandsHSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 CDMA2000 1xEV-DO 4G bands1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 42, 46, 48, 66, 71 - GLUOG, G8VOU5G bands1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 40, 41, 48, 66, 71, 77, 78, 257, 258, 260, 261 SA/NSA/Sub6/mmWave - G8VOU 1, 2, 3, 5, 7, 8, 12, 14, 20, 25, 28, 30, 38, 40, 41, 48, 66, 71, 77, 78 SA/NSA/Sub6 - GLUOGSpeedHSPA 42.2/5.76 Mbps, LTE-A (CA), 5G