Develop Bugs

What's the difference between Z5 E6833 and E6883?

Hi,
Any one know the differences between Z5 Premium dual SIM model E6833 and model E6883 ? Same specification, except for TD-LTE.
E6833 have LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 20
E6883 have LTE 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, and TD-LTE 38, 39, 40, 41
So, what's the interest to pickup the E6833?
E6883 is more "international".
Thanks to explain and bring light to my confused brain

one is dualsim and one isnt
the dualsim version cant use the roms nor kernel due to the differences in hardware around the sim and radio.

I understand that if you want a real international version, you should go with E6853 version of this phone. It sports LTE bands 1/2/3/4/5/7/8/12/17/20/28. Hope this helps.

Envious_Data said:
one is dualsim and one isnt
the dualsim version cant use the roms nor kernel due to the differences in hardware around the sim and radio.
Click to expand...
Click to collapse
both are dual sim; only difference is that 6883 offers TD/LTE bands too.
Both fully compatible with european FDD/LTE bands (B3/B7/B20)
E6833: UMTS HSPA+ 850 (Band V), 900 (Band VIII), 1900 (Band II), AWS-1(Band IV), 2100 (Band I) MHz GSM GPRS/EDGE 850, 900, 1800, 1900 MHz LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20)
E6883: UMTS HSPA+ 850 (Band V), 900 (Band VIII), 1900 (Band II), AWS-1(Band IV), 2100 (Band I) MHz GSM GPRS/EDGE 850, 900, 1800, 1900 MHz LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 38, 39, 40, 41)
Sony official white paper: http://dl-developer.sonymobile.com/...s/Xperia_Z5_Premium_dual_E6833_E6883_WP_2.pdf
---------- Post added at 03:18 PM ---------- Previous post was at 03:12 PM ----------
macbera said:
I understand that if you want a real international version, you should go with E6853 version of this phone. It sports LTE bands 1/2/3/4/5/7/8/12/17/20/28. Hope this helps.
Click to expand...
Click to collapse
6853 is a single SIM variant
http://dl-developer.sonymobile.com/documentation/whitepapers/Xperia_Z5_Premium_E6853_WP_2.pdf

The Duam SIM variant supports additional LTE bands 38,39,40,41 which are for Europe...anyone buying for U.S. usage can buy either one.

gparmar76 said:
The Duam SIM variant supports additional LTE bands 38,39,40,41 which are for Europe...anyone buying for U.S. usage can buy either one.
Click to expand...
Click to collapse
European standard LTE bands are: FDD B3/B7/B20
Those bands (B38/B39/B40/B41) are TD LTE bands (no TD coverage at all in Europe)

Envious_Data said:
one is dualsim and one isnt
the dualsim version cant use the roms nor kernel due to the differences in hardware around the sim and radio.
Click to expand...
Click to collapse
Sorry can you explain this more, are you saying that the E6883‏ (Dual Sim) is less likely to be modified? I'm confused, all Android's have ROM's and Kernel's

e6883 and e6833 cat.4 or cat. 6 lte ?
Dear sir,
i want to know if the device support in dual sim premium variante e 6883 lte cat. 4 or lte cat.6 (300mbps download) because there are different specifications on the web.
thanks

dude9946 said:
Sorry can you explain this more, are you saying that the E6883‏ (Dual Sim) is less likely to be modified? I'm confused, all Android's have ROM's and Kernel's
Click to expand...
Click to collapse
I just think he meant you can't use a single sim rom on a dual sim phone and vice versa

do both sim slots on the E6883 connect through 4G or is sim 2 only 2G?

G7 dual sim - US & Europe

I want a phone that works in US (T-Mobile LTE band 4 1700/2100) as well as Europe.
It seems there are only 2 Lg G5 Dual Sim models:
g710eaw & g710emw
https://www.phonemore.com/compare/phones/lg-g7-thinq-g710eaw-vs-lg-g7-thinq-g710emw/8050095
But only LMG710EMW lists band4 1700/2100.
However LG.com site doesn't list this band on any of those two. Where can I find exact specs (frequencies) for those phones that are correct?
Anyone own LMG710EMW ? and does it work in US?
thanks

I can confirm LG G7 EAW dual sim with 6GB ram working fine on lte in Europe...

shanekm said:
I want a phone that works in US (T-Mobile LTE band 4 1700/2100) as well as Europe.
It seems there are only 2 Lg G5 Dual Sim models:
g710eaw & g710emw
https://www.phonemore.com/compare/phones/lg-g7-thinq-g710eaw-vs-lg-g7-thinq-g710emw/8050095
But only LMG710EMW lists band4 1700/2100.
However LG.com site doesn't list this band on any of those two. Where can I find exact specs (frequencies) for those phones that are correct?
Anyone own LMG710EMW ? and does it work in US?
thanks
Click to expand...
Click to collapse
Ignore the bands shown on the LG site and by "most" sites which get their information from the LG site.
The LG site ONLY shows bands that are OFFICIALLY Supported by that region, NOT which the phone supports via hardware.
These phones also support WCDMA even though many pages selling these phones say "GSM only, no CDMA". Unless WCDMA and CDMA are not the same thing...
Bands supported on G710EAW are LTE B1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 39, 40, 41
GSM: 850/900/1800/1900
WCDMA: 850/900/1700/1800/1900/2100
WCDMA: 1900/2000.
EMW I believe has some differences in LTE bands. Check the seller site. In most cases, the exact bands should be shown on the phone box itself, so ask for a picture of that.

Falkentyne said:
Ignore the bands shown on the LG site and by "most" sites which get their information from the LG site.
The LG site ONLY shows bands that are OFFICIALLY Supported by that region, NOT which the phone supports via hardware.
These phones also support WCDMA even though many pages selling these phones say "GSM only, no CDMA". Unless WCDMA and CDMA are not the same thing...
Bands supported on G710EAW are LTE B1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 39, 40, 41
GSM: 850/900/1800/1900
WCDMA: 850/900/1700/1800/1900/2100
WCDMA: 1900/2000.
EMW I believe has some differences in LTE bands. Check the seller site. In most cases, the exact bands should be shown on the phone box itself, so ask for a picture of that.
Click to expand...
Click to collapse
So that does that mean that this phone ( G710EAW are LTE B1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 39, 40, 41) will work with Tmobile USA?
Tmobile frequency/bands:
https://support.t-mobile.com/docs/DOC-4988
thank you

Did you know if the G710EAW works in Italy?
How is the frequency of updates despite the single Sim version?
Thanks!
Inviato dal mio Mi A1 utilizzando Tapatalk

[email protected] said:
Did you know if the G710EAW works in Italy?
How is the frequency of updates despite the single Sim version?
Thanks!
Inviato dal mio Mi A1 utilizzando Tapatalk
Click to expand...
Click to collapse
Depends on the carrier you want to use.

LameMonster82 said:
Depends on the carrier you want to use.
Click to expand...
Click to collapse
Now I'm on Iliad
What about the updates?
Inviato dal mio Mi A1 utilizzando Tapatalk

Falkentyne said:
Ignore the bands shown on the LG site and by "most" sites which get their information from the LG site.
The LG site ONLY shows bands that are OFFICIALLY Supported by that region, NOT which the phone supports via hardware.
These phones also support WCDMA even though many pages selling these phones say "GSM only, no CDMA". Unless WCDMA and CDMA are not the same thing...
Bands supported on G710EAW are LTE B1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 39, 40, 41
GSM: 850/900/1800/1900
WCDMA: 850/900/1700/1800/1900/2100
WCDMA: 1900/2000.
EMW I believe has some differences in LTE bands. Check the seller site. In most cases, the exact bands should be shown on the phone box itself, so ask for a picture of that.
Click to expand...
Click to collapse
Thanks for the info, can you so confirm that buying the EAW will have active by default all these bands? I hear that they are deactivated by the specific software.....

Falkentyne said:
Ignore the bands shown on the LG site and by "most" sites which get their information from the LG site.
The LG site ONLY shows bands that are OFFICIALLY Supported by that region, NOT which the phone supports via hardware.
These phones also support WCDMA even though many pages selling these phones say "GSM only, no CDMA". Unless WCDMA and CDMA are not the same thing...
Bands supported on G710EAW are LTE B1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 28, 38, 39, 40, 41
GSM: 850/900/1800/1900
WCDMA: 850/900/1700/1800/1900/2100
WCDMA: 1900/2000.
EMW I believe has some differences in LTE bands. Check the seller site. In most cases, the exact bands should be shown on the phone box itself, so ask for a picture of that.
Click to expand...
Click to collapse
WCDMA and CDMA are not exactly the same.

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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse

Interesting. So it's better to get Korean over hong Kong?

freeza said:
Interesting. So it's better to get Korean over Hong Kong?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.

will the ATT variant work with tmobiles 5G?

Do they all (with the exception of Verizon) have the same bands for 5G?

nique0201 said:
Do they all (with the exception of Verizon) have the same bands for 5G?
Click to expand...
Click to collapse
Tmo's 5g is band 71, so it will work. Tmo's 5g, is nothing more than an enhanced 4g lte.

Correct. The "sub 6" t-mo 5G is only 20% faster than 4g lte. Nothing to write home about.
Sent from my SM-G975U1 using Tapatalk

johnwayne27 said:
Correct. The "sub 6" t-mo 5G is only 20% faster than 4g lte. Nothing to write home about.
Sent from my SM-G975U1 using Tapatalk
Click to expand...
Click to collapse
5G is highly unnecessary on a phone anyway. What i am looking forward to, is better indoor penetration with B71. It works well on my Pixel4XL.

nique0201 said:
Do they all (with the exception of Verizon) have the same bands for 5G?
Click to expand...
Click to collapse
Based on this comparison from techwalls, AT&T and T-Mobile models will have the same 5G bands (all the US models support the same assuming techwalls is accurate).
SM-G988UZAATMB (Cosmic Gray – 128GB Storage)
SM-G988UZKATMB (Cosmic Black – 128GB Storage)
SM-G988UZKETMB (Cosmic Black – 512GB Storage) Snapdragon 865 – 12GB RAM T-Mobile – US 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, 20, 25, 26, 28, 29, 30, 38, 40, 41, 46, 66
5G: Bands n2, n5, n41, n66, n71, n260, n26
SM-G988UZAAATT (Cosmic Gray – 128GB Storage)
SM-G988UZKAATT (Cosmic Black – 128GB Storage) Snapdragon 865 – 12GB RAM AT&T – US 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, 20, 25, 26, 28, 29, 30, 38, 40, 41, 46, 66
5G: Bands n2, n5, n41, n66, n71, n260, n26
SM-G988UZAAVZW (Cosmic Gray – 128GB Storage)
SM-G988UZKAVZW (Cosmic Black – 128GB Storage)
SM-G988UZKEVZW (Cosmic Black – 512GB Storage) Snapdragon 865 – 12GB RAM Verizon – 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
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

US models should be 100% the same, just S/N are assigned to each carrier and some things in the box might change (paperwork, SIM card, etc.)

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.
Click to expand...
Click to collapse
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