I have purchased the S8+ US unlocked variant (SM-G955U1) from best buy and as per the Specs page in best buy, the phone supports LTE band 40. The same is listed even on B&H as well. But the Samsung website doesn't include Band 40 in their specs for Unlocked Variant where as Band 40 is included for all the carrier versions. Since Band 40 is one of the major bands in India and this phone is intended to be used in India, can some one let me know how to check the supported bands on this phone? I tried *#2263# but I get a message that RAT selection option is restricted.
I think the main difference between Chinese V10 and European/US View 10 is the LTE bands. Do you know if it's possible to unlock band 20 on the Chinese version?
Can the CMDA be used on verizon?
No. No Verizon or Sprint.
Must have t-mobile or at&t correct?
Yes, and any smaller carrier that depends on their bands.
Sammae7 said:
Yes, and any smaller carrier that depends on their bands.[/QUOT]
Before buying an unlocked phone to use on a US GSM network, you need to research the 4G FDD radio bands used by the carrier and make sure the phone you want supports those FDD radio bands. (Verizon users, even when Verizon abandons CDMA in 2019, you won't be able to go out and buy any phone with the correct FDD bands and that supports VoLTE to use on their network. Verizon has made it clear that it will only provision phones that it has tested and certified.) Here's a link with US and Canadian carrier bands. https://www.signalbooster.com/pages/what-are-the-cellular-frequencies-of-cell-phone-carriers-in-usa-canada
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Anyone know if the India version has band 20? band 28?
kazprotos said:
Anyone know if the India version has band 20? band 28?
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Best I can do is recommend you search this page by the carrier in India that you use, it will tell you if you'll get 2G, 3G and LTE with the Honor View 10, TD-LTE BLN-AL10. https://www.frequencycheck.com/compatibility/QePYuJz/huawei-honor-6x-dual-sim-td-lte-bln-al10/india
mke1973 said:
Best I can do is recommend you search this page by the carrier in India that you use, it will tell you if you'll get 2G, 3G and LTE with the Honor View 10, TD-LTE BLN-AL10. https://www.frequencycheck.com/compatibility/QePYuJz/huawei-honor-6x-dual-sim-td-lte-bln-al10/india
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That one is incorrect
Says the l09 don't support lte in America
It does
As far as India
Look at these bands
I have an SM-G935V phone. I have flashed the "G935U" Nougat on it to get rid of the VZW bloatware. Eventually I even got the Oreo OTA update. U version. The LTE bands remained unchanged after flash and upgrade to the "V" ones.
Now, I am using it on a VZW MVNO, so LTE bands where OK for me. Because I am curious, I have added all the LTE bands that the U version would have using the Qualcomm software, as described here:
https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059
The NV cell #06828 for my original V radio had the value 4190. That means LTE bands 2,3,4,5,7,13.
I have changed that cell value to 2062440470751. That means LTE bands 1,2,3,4,5,7,8,12,13,20,25,26,29,30,38,39,40,41 (like they are on the U hardware, plus band 13 that is not found on the U).
Didn't add B17 because presently it's just a subset of B12.
Well... when I have traveled in EU, band 20 didn't seem to work. But I admit I didn't do extensive testing.
Now, in US, I had the occasion to test an AT&T SIM. To my surprise, I found out that bands 12 and 30 seemed to have appeared, and I even had CA with band 2 (LTE+). So it seems that that worked... see the pics from service mode.
Band 2 with CA on 12, band 12 with CA on 2 and band 2 with CA on band 30.
I just received, on my SM-G935V hardware, the latest Oreo "U" update (G935UUES4CRG3). I have install it and... of course the LTE bands reverted to the "V" ones, like always.
I have changed them back to the more inclusive set like I did before, however I took a screenshoot of the original LTE band NV value - for whoever is interested. The number is 4190 and that translates into LTE bands 2,3,4,5,7,13. Most of the sites quote more bands for the G935V, but I guess nobody really took the time to actually verify that.
And no, as you can see, just flashing the "U" firmware over "V" won't add any of the missing bands. Those band settings are stored somewhere else, in the modem non-volatile memory.
Did more experimenting. Changing the SIM with another one triggers the re-flashing of the CSC with the new one. Well... surprise the AT&T SIM added the needed bands with CSC ATT.
Picture attached.
Putting back the Tracfone SIM, CSC code was re-flashed (TFN) and... NV was re-written with the 4190 one (LTE bands 2,3,4,5,7,13).
See attached the pic of the Service menu *#2263# from AT&T CSC listing the bands. I can't take screenshoots from the TFN one, because that SIM blocks the Service RIL menu.
So, modding the bands can be useless, because it gets re-written by the CSC settings at every SIM change.
I found out how to enable the Service Menu *#0011# on my Verizon SIM, in case that anyone is interested.
The dialer code for enabling is *#22745927 , followed by MSL "000000". If your phone is carrier locked, the MSL will be different.
I just came back from a visit to Spain, Vodafone SIM, and I saw LTE bands 3, 7 and 20 working on my S7Edge Verizon with the "U" firmware - I have used cellmapper to map the towers.
No modding was needed, maybe because those are also present in the underlying V hardware.
Very nice write-up. I'll have to try that!
I read that I can install the firmeware of sm-935U in my sm-935V, but when i enter in sammobile page ,there is a huge list of 935U firmeware, wich of those do i have to select to work fine in my phone
Looking at purchasing an S8+ second hand. How's the band support work across carrier versions? It's a smg955uzvv, which is a Vz model. Is it possible to flash the unlocked or T-Mobile firmware and if so will that activate all of the respective bands?
nameback said:
Looking at purchasing an S8+ second hand. How's the band support work across carrier versions? It's a smg955uzvv, which is a Vz model. Is it possible to flash the unlocked or T-Mobile firmware and if so will that activate all of the respective bands?
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They are nearly world wide universal. If its network unlocked. You can flash the tmobile so you have their apps. Or flash the unbranded csc files to make it bloat free. The newer samsungs are awesome with compatibility
Hello,
I am looking to buy an unlocked S21+ from Samsung Canada store (SM-G996W) and I checked here :
S21+ Differences that the following 5G bands: n2, n41, n66, n71 are the ones supported by the Candian model so my question is:
Is it possible to change the supported bands? For example, if I travel to a country where the used 5G band is the n28, will the S21+ support this band. If so, how please?
Btw, I have seen some users changing Network bands on Samsung devices without root so I want to make sure that it works with the 5G bands especially from someone who have a S21+ please?
Here is the link of the short tutorial: Un/Locking LTE Bands on Samsung I am talking about.
Thanks for your help
Farouk_50 said:
Hello,
I am looking to buy an unlocked S21+ from Samsung Canada store (SM-G996W) and I checked here :
S21+ Differences that the following 5G bands: n2, n41, n66, n71 are the ones supported by the Candian model so my question is:
Is it possible to change the supported bands? For example, if I travel to a country where the used 5G band is the n28, will the S21+ support this band. If so, how please?
Btw, I have seen some users changing Network bands on Samsung devices without root so I want to make sure that it works with the 5G bands especially from someone who have a S21+ please?
Here is the link of the short tutorial: Un/Locking LTE Bands on Samsung I am talking about.
Thanks for your help
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AFAIK this 5G bands are hardware related, not software related. So no "unlocking" in this case.