Recently got Verizon Note 10+5G unlocked and I use AT&T on this. Signal is so pathetic on this and I am not getting good speeds on this. In the mobile networks, there is an option like Global or GSM/LTE or CDMA/LTE. Which one do I have to choose?
Any flashing that can help this to convert to an AT&T phone?
Thanks
Did you change the CSC code?
I am using the same phone on T-Mobile and I can tell you that the signal strength is far superior than my previous unlocked Galaxy S10 Plus Snapdragon. I have been using Global mode. If you're talking about the 5G band, this model supports 28GHz and 39GHz spectrum bands. As AT&T holds 40% of 39GHz bands, you should get signal in many cities. However the signal from these mmWave antennas don't go very far, you need to be very close to the 5G antenna. I have been lucky to try 5G on TMobile with 28GHz on this phone, performs well when you are near the antenna (TMobile holds only 12% of 28GHz spectrum and hence 5G on this phone limited to only few cities).
You can't flash cross carrier or unlocked firmware on this model, however you can disable many Verizon apps to make the phone look clean.
PS: The only reason I could think of for bad signal is if you changed the CSC code to GCF. I had changed once and I know the consequences including the signal drop at high rate. Phone is not meant to use with GCF CSC.
Cashreedhar said:
Did you change the CSC code?
I am using the same phone on T-Mobile and I can tell you that the signal strength is far superior than my previous unlocked Galaxy S10 Plus Snapdragon. I have been using Global mode. If you're talking about the 5G band, this model supports 28GHz and 39GHz spectrum bands. As AT&T holds 40% of 39GHz bands, you should get signal in many cities. However the signal from these mmWave antennas don't go very far, you need to be very close to the 5G antenna. I have been lucky to try 5G on TMobile with 28GHz on this phone, performs well when you are near the antenna (TMobile holds only 12% of 28GHz spectrum and hence 5G on this phone limited to only few cities).
You can't flash cross carrier or unlocked firmware on this model, however you can disable many Verizon apps to make the phone look clean.
PS: The only reason I could think of for bad signal is if you changed the CSC code to GCF. I had changed once and I know the consequences including the signal drop at high rate. Phone is not meant to use with GCF CSC.
Click to expand...
Click to collapse
No I didn't change the code.
I want to get an asian variant of the s20 ultra so I can unlock my bootloader but those varients don't support the bands for T-Mobile 5G. Would it be possible to somehow enable the T-Mobile US bands on that variant?
600 MHz is low band and i think this device antenna or other RF-elements doesn't support such low band. 5G is too new also and you have to also somehow define en-dc combinations so i don't recommend buy this variant. If you like make sure 5G works, buy device from home market.
is there a variant that i can root and use on tmobile 5g?
Forget about trying to root Snapdragon versions.
@42o247 forget @roaduardo and his wrong answer.
if you want to root Snapdragon get SM-G9860 for S20+ works like a charm.
chieco said:
@42o247 forget @roaduardo and his wrong answer.
if you want to root Snapdragon get SM-G9860 for S20+ works like a charm.
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Click to collapse
I assume that's the HK version?
chieco said:
@42o247 forget @roaduardo and his wrong answer.
if you want to root Snapdragon get SM-G9860 for S20+ works like a charm.
Click to expand...
Click to collapse
do you think that works with tmobile 5g?
roaduardo said:
I assume that's the HK version?
Click to expand...
Click to collapse
yes.
42o247 said:
do you think that works with tmobile 5g?
Click to expand...
Click to collapse
there are tons of information about this device. I gave you already the most important information which was SM-G9860. You can easily google SM-G9860 5G T-Mobile. Or search for the supported bands and the bands T-Mobile uses.
chieco said:
You can easily google SM-G9860 5G T-Mobile. Or search for the supported bands and the bands T-Mobile uses.
Click to expand...
Click to collapse
i tried that before i even posted but most of the results are for the sm-g9860u and from the how to root guide it seemed like all the variants ending with U were unable to unlock the bootloader or root. i figured i would ask if anyone had a personal opinion or knowledge before wasting more of my time searching. thanks for the response though your thoughts are sincerely appreciated.
42o247 said:
i tried that before i even posted but most of the results are for the sm-g9860u and from the how to root guide it seemed like all the variants ending with U were unable to unlock the bootloader or root. i figured i would ask if anyone had a personal opinion or knowledge before wasting more of my time searching. thanks for the response though your thoughts are sincerely appreciated.
Click to expand...
Click to collapse
These are T-mobile's 5G Bands.
Band n71 (600 MHz)
Band N260 (39 GHz)
Band N261 (28 GHz)
Band n41 (2.5 GHz)
These are the SM-G9880 and SM-G9860 5G Bands.
Bands Sub6
Band N41 (2.5 GHz)
Band N78 (3.5 GHz)
Band N79 (4.5 GHz)
Samsung S20 5G UW Bands
260, 261 mmWave
The device "should work" on Band N41. Also, keep in mind there are different variants of 5G Protocol. Low-Band, Mid-Band and Millimeter Wave. mmWave is the gold standard when speed is the only criteria.
mmWave high-band 5G: T-Mobile, AT&T and Verizon. About 10x faster than LTE with extremely low latency, which means you need to be standing really close to a tower or transmitter to get those speeds. Mid-band 5G: Sprint. About 6x faster than LTE, but with a smaller footprint than low-band. Low-band 5G: T-Mobile/AT&T. About 20 percent faster than 4G LTE.
If I were compelled to utilize 5G, which at this time I'm not, I would consider AT&T. They are the only Service Provider offering mmWave 5G on a Samsung 5G UW Device. Even though it has a Snapdragon SoC, I suspect the bootloader is locked like all of the US Carrier Devices.
varcor said:
These are T-mobile's 5G Bands.
Band n71 (600 MHz)
Band N260 (39 GHz)
Band N261 (28 GHz)
Band n41 (2.5 GHz)
These are the SM-G9880 and SM-G9860 5G Bands.
Bands Sub6
Band N41 (2.5 GHz)
Band N78 (3.5 GHz)
Band N79 (4.5 GHz)
Samsung S20 5G UW Bands
260, 261 mmWave
The device "should work" on Band N41. Also, keep in mind there are different variants of 5G Protocol. Low-Band, Mid-Band and Millimeter Wave. mmWave is the gold standard when speed is the only criteria.
mmWave high-band 5G: T-Mobile, AT&T and Verizon. About 10x faster than LTE with extremely low latency, which means you need to be standing really close to a tower or transmitter to get those speeds. Mid-band 5G: Sprint. About 6x faster than LTE, but with a smaller footprint than low-band. Low-band 5G: T-Mobile/AT&T. About 20 percent faster than 4G LTE.
If I were compelled to utilize 5G, which at this time I'm not, I would consider AT&T. They are the only Service Provider offering mmWave 5G on a Samsung 5G UW Device. Even though it has a Snapdragon SoC, I suspect the bootloader is locked like all of the US Carrier Devices.
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Click to collapse
ill pass for now in the samsung troubles. seems to me that its not worth the trouble to find a samsung device that gets tmobile 5g and root. thanks again samsung
42o247 said:
ill pass for now in the samsung troubles. seems to me that its not worth the trouble to find a samsung device that gets tmobile 5g and root. thanks again samsung
Click to expand...
Click to collapse
yeah you should pass on Samsung in general and get a 8 Pro. But if your decision depends only on 5G I have to say it shouldn't be that important, because 5G isn't that relevant so far, and maybe for the coming 1-2 years. And I'm sure won't keep the device longer then that anyways...
Also 5G caused CORONA VIRUS!!! LOL just kidding,
42o247 said:
ill pass for now in the samsung troubles. seems to me that its not worth the trouble to find a samsung device that gets tmobile 5g and root. thanks again samsung
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Click to collapse
You should pass on T-Mobile as well, their 5G squirts!
yeah tmobile isnt great and samsung is nerfed by the software. im giving up on cell phones and switching back to a landline
chieco said:
yes.
there are tons of information about this device. I gave you already the most important information which was SM-G9860. You can easily google SM-G9860 5G T-Mobile. Or search for the supported bands and the bands T-Mobile uses.
Click to expand...
Click to collapse
You can Google stuff? Word?
varcor said:
These are T-mobile's 5G Bands.
Band n71 (600 MHz)
Band N260 (39 GHz)
Band N261 (28 GHz)
Band n41 (2.5 GHz)
These are the SM-G9880 and SM-G9860 5G Bands.
Bands Sub6
Band N41 (2.5 GHz)
Band N78 (3.5 GHz)
Band N79 (4.5 GHz)
Samsung S20 5G UW Bands
260, 261 mmWave
The device "should work" on Band N41. Also, keep in mind there are different variants of 5G Protocol. Low-Band, Mid-Band and Millimeter Wave. mmWave is the gold standard when speed is the only criteria.
mmWave high-band 5G: T-Mobile, AT&T and Verizon. About 10x faster than LTE with extremely low latency, which means you need to be standing really close to a tower or transmitter to get those speeds. Mid-band 5G: Sprint. About 6x faster than LTE, but with a smaller footprint than low-band. Low-band 5G: T-Mobile/AT&T. About 20 percent faster than 4G LTE.
If I were compelled to utilize 5G, which at this time I'm not, I would consider AT&T. They are the only Service Provider offering mmWave 5G on a Samsung 5G UW Device. Even though it has a Snapdragon SoC, I suspect the bootloader is locked like all of the US Carrier Devices.
Click to expand...
Click to collapse
Even device support n41 ( 2.5 GHz) that doesn't mean it work in T-Mobile/Sprint 5G-network because it require anchor band on 4G. But i don't know much about this Hong Kong variant because haven't got any log from it. If someone have, please share. Here is instruction to get modem log: https://mt-tech.fi/en/how-to-get-4g...ons-from-your-android-phone/#Qualcomm_devices . Please send log to: https://cacombos.com/contribute
I have some S20 variants supported bands and these combinations in my site: https://cacombos.com/search?key=S20 . I just need more data from these devices to complete listing.
But in USA i recommend buy device in US. Devices from overseas doesn't often support 4G and 5G carrier combinations used in US so you get less speed on network.
olkitu said:
Even device support n41 ( 2.5 GHz) that doesn't mean it work in T-Mobile/Sprint 5G-network because it require anchor band on 4G. But i don't know much about this Hong Kong variant because haven't got any log from it. If someone have, please share. Here is instruction to get modem log: https://mt-tech.fi/en/how-to-get-4g...ons-from-your-android-phone/#Qualcomm_devices . Please send log to: https://cacombos.com/contribute
I have some S20 variants supported bands and these combinations in my site: https://cacombos.com/search?key=S20 . I just need more data from these devices to complete listing.
But in USA i recommend buy device in US. Devices from overseas doesn't often support 4G and 5G carrier combinations used in US so you get less speed on network.
Click to expand...
Click to collapse
A great resource and good to know, thanks! I agree with your suggestion to purchase the device from your Service Provider, that will pretty much guarantee you'll have all Carrier Aggregation utilities and 5G Connectivity Protocols in place. Unfortunately, users want a phone which has everything, no bloatware, unlocked bootloader, universal connectivity, full carrier aggregation and the best SoC. With all the variants from Samsung and varied Service Provider metrics that's not realistic.
I have a few questions you may be qualified to answer. Does the first letter of a band being capitalized or not have significance? Example n71 or N71? Does this represent MHz versus GHz? Secondly, in the example above, both the device and AT&T have a number of matching 4G Bands. Would this indicate the device will be able to anchor to the carrier? Lastly, let's assume a device and the carrier have multiple matching bands. Who or what determines which band will be paired in a specific connection, will the carrier determine this based on location or traffic volume, does the user have the ability switch to a specific bandwidth?
varcor said:
A great resource and good to know, thanks! I agree with your suggestion to purchase the device from your Service Provider, that will pretty much guarantee you'll have all Carrier Aggregation utilities and 5G Connectivity Protocols in place. Unfortunately, users want a phone which has everything, no bloatware, unlocked bootloader, universal connectivity, full carrier aggregation and the best SoC. With all the variants from Samsung and varied Service Provider metrics that's not realistic.
I have a few questions you may be qualified to answer. Does the first letter of a band being capitalized or not have significance? Example n71 or N71? Does this represent MHz versus GHz? Secondly, in the example above, both the device and AT&T have a number of matching 4G Bands. Would this indicate the device will be able to anchor to the carrier? Lastly, let's assume a device and the carrier have multiple matching bands. Who or what determines which band will be paired in a specific connection, will the carrier determine this based on location or traffic volume, does the user have the ability switch to a specific bandwidth?
Click to expand...
Click to collapse
n71 and N71 is same band 600 MHz 5G NR. But in cacombos.com you see different characters like C what means contiguous intra-band CA. Example 3C.
On cacombos.com you can see example combination 2A4-66A4A_n71A2A what means 2-66_71 CA combination. Band 66 is anchor band for n71 5G.
I have the Samsung Factory Unlocked version of the S20+ (model SG-M986U1).* This means the phone is not carrier-specific, it works on all carriers (CDMA, GSM) and supports both millimeter wave (Verizon 5G Ultra Wide UW) AND lower frequency band 5G (usually called Sub 6).* The 5G UW super fast network is typically only available in highly populated areas (cities) because it that frequency signal doesn't travel very far and is easily blocked by buildings.* However you will notce the Verizon 5G coverage map shows 5G as being pretty widespread across the country.* Most of that is their Sub 6 5G Network which was launched in mid October 2020.* The 5G Sub 6 network, to my understanding, is using some of the same frequency bands as 4G so essentially it's really an amped up 4G signal using what is called Dynamic Signal Sharing (DSS)*(A lot of people don't understand all this.)*
I'm curious if there's anyone on the forums with a factory unlocked version of the S20 (typically the model number I think has a U at the end instead of VZW) can confirm if their phone shows a 5G icon when you are in sub 6 5G or does it show "LTE+"* I read somewhere the unlocked phones show LTE+ because technically that is what Sub 6 band 5G using DSS really is and 5G in that case is more of a marketing term.* Because different carriers use different terms for different networks, the factory unlocked phones can connect to all the different 5G networks but they can't accomodate all the different marketing terms.* I'd also be curious if when connected to the millimeter wave 5G in the cities if these factory unlocked phones show the "UW" designation which is bascially a Verizon marketing term, or if the phone just shows "5G".
There was also an article that talked about these phones needing a software update to use 5G and supposedly the updates were pushed out right after Verizon announced their Sub 6 5G network launch in mid October. But the author wasn't sure if the Factory Unlocked non-carrier specific models would receive the necessary update. Considering Verizon and Samsung just signed a 6.5 Billion Dollar agreement for SAMSUNG to further build out their 5G network, I would be very surprised if it were the case the factory unlocked models didn't get the update.
My S20+ model SG-M986U1 is showing Service Provider SW Ver. SAOMC_SM-G986U1_OYN-VZQ_QQ_0027 wondering if that's the 5G compatible version?
The other thing is a lot of people just swap SIM cards when they get a new phone. With 5G in most cases, if your SIM card was issued may months ago, you need to go into the carrier store and have them give you a new 5G compatible SIM card. I honestly can't remember if my phone was showing LTE or LTE+ before and after SIM card change. I tested the bandwidth after the change and in a strong signal area got 60mbit download but I didn't have a pre-SIM swap test in that area to compare to unfortunately.
Well I feel like I'm going in circles but now found a Reddit thread that confirms what I originally suspected.
The Factory Unlocked (model ending in U1) S20 phones apparently have not got the update from Samsung yet to allow sub 6 5G connection. But there is a hack in that you can change the carrier network code to ATT even though you are on Verizon and it enabled the N5 band which is what Verizon uses for their "Nationwide 5G" To do this you dial *#272*your IMEI number# Then select ATT and Install and change network code only. Phone will reboot and now you will see 5G UW symbol.
I tried the CSC change on my factory unlocked S20+. I ran three successive bandwidth tests on bandwidthplace.com before and after the change so 3 times on VZW and 3 times on ATT. As others have alluded to the LTE DSS Sub 6 Flavor of Verizon 5G is on average about the same speed as 4G LTE+. So I just turned it back to VZW and will wait for the update from Samsung. I'm surprised a month and a half later it still hasn't got the update to allow N5 band on Verizon.
I'm also wondering is the S20 always show 5G UW when connected to any 5G including sub 6 5G and not actual millimeter wave ultra wide 5G? Or is that just a side effect of "spoofing" the ATT carrier code when actually on a Verizon network IMEI?
Hello Jazee, this is my first response to anyone on xda, and I know that by now you probably have your answer I notice this is an old post. I have an unlocked Samsung s20 5g. And depending on where I am, it says 4g let, and when I'm closer to the city, or hold my leg right(I live in the country), my phone shows 5g. It's shown lte+ before. I think it depends on your carrier. Some I've noticed share 4 and 5g lte simultaneously depending on the current speed. As you mentioned earlier, 5g signal doesn't put up a big fight when it sees a tree or building. Anyways, that's my 2 bits worth, hope this helped. BTW, lte+, when I get that, it is pitiful. Nothing like either 4g lte or 5g lte.
Did anyone notice that all mediatek devices/chipsets even the recent G90T, G95, G85, or P-Series etc do not have
Intra-band Non-Contiguous CA (Carrier Aggregation) and
Inter-band Carrier Aggregation in them ?? except for the latest and recently launched Dimensity mediatek series. Most of their devices only have 1 type of Carrier Aggregation, even the latest phones launched with G80, G90T, G95; they only have simple intra-band Contiguous CA type implemented in them. I checked several phones and tested with different operators as well and only one type of Carrier Aggregation implementation is done by mediatek devices while snapdragon has better even on 600-series SOCs, etc.
Isn't this sort of silently being cheated by the mediatek ??. let us just take one SOC... as per mediatek G90T specs on its site it says 3xCA, 4x4 MIMO, 256QAM and speeds upto 1Gbps if you look up the pdf for same G90T series on their product page.
I searched a lot but still couldn't find any info or if anyone is getting other 2 Carrier Aggregation types working for them. But they have started offering all 3 types of CA after Dimensity 5G SOC series. I do understand that not all is offered as per the specs which involves other licensing stuff etc but still this is not right when compared to snapdragon devices. Its sort of like info related to which types of Carrier Aggregation is supported on devices is hid to users and user experiences speed issues related to 4G+ and its related and looking for means to unlock bands or CA types on Software levels which are sort of None for mediatek devices compared to Snapdragon when hardware itself is not support on mediatek.
Can you guys check if your mediatek devices older than dimensity supports Intraband Non-Continuous or inter-band CA ?. using any service mode/code or apps like Netmonster, etc. Do post screenshot if possible.
For those who are not aware or complaining Netmoster doesn't show proper CA info, Netmonster app just shows "LTE-A 2300" for Intraband Contiguous CA (Type 1 CA) along with 4G+ symbol on status bar for 40C;
"LTE-A 2300+2300" will be shown if a Intraband Non-Contiguous (Type 2 CA) is working on device. However this 2nd will not be shown monstly on mediatek devices on non-dimensity devices.
I maintain large database of supported Carrier Aggregation combinations cacombos.com. There you can check different devices combinations support.
Netmonster app is not accurate because it only show connected state and it doesn't always show right. Best way is collect modem log and read it to find supported Carrier Aggregation combinations.
There is also Helio -series modem support non-contiguous CA example: https://cacombos.com/device/CPH1951
olkitu said:
I maintain large database of supported Carrier Aggregation combinations cacombos.com. There you can check different devices combinations support.
Netmonster app is not accurate because it only show connected state and it doesn't always show right. Best way is collect modem log and read it to find supported Carrier Aggregation combinations.
There is also Helio -series modem support non-contiguous CA example: https://cacombos.com/device/CPH1951
Click to expand...
Click to collapse
ya I'm already aware of your site.
neol said:
Did anyone notice that all mediatek devices/chipsets even the recent G90T, G95, G85, or P-Series etc do not have
Intra-band Non-Contiguous CA (Carrier Aggregation) and
Inter-band Carrier Aggregation in them ?? except for the latest and recently launched Dimensity mediatek series. Most of their devices only have 1 type of Carrier Aggregation, even the latest phones launched with G80, G90T, G95; they only have simple intra-band Contiguous CA type implemented in them. I checked several phones and tested with different operators as well and only one type of Carrier Aggregation implementation is done by mediatek devices while snapdragon has better even on 600-series SOCs, etc.
Isn't this sort of silently being cheated by the mediatek ??. let us just take one SOC... as per mediatek G90T specs on its site it says 3xCA, 4x4 MIMO, 256QAM and speeds upto 1Gbps if you look up the pdf for same G90T series on their product page.
I searched a lot but still couldn't find any info or if anyone is getting other 2 Carrier Aggregation types working for them. But they have started offering all 3 types of CA after Dimensity 5G SOC series. I do understand that not all is offered as per the specs which involves other licensing stuff etc but still this is not right when compared to snapdragon devices. Its sort of like info related to which types of Carrier Aggregation is supported on devices is hid to users and user experiences speed issues related to 4G+ and its related and looking for means to unlock bands or CA types on Software levels which are sort of None for mediatek devices compared to Snapdragon when hardware itself is not support on mediatek.
Can you guys check if your mediatek devices older than dimensity supports Intraband Non-Continuous or inter-band CA ?. using any service mode/code or apps like Netmonster, etc. Do post screenshot if possible.
For those who are not aware or complaining Netmoster doesn't show proper CA info, Netmonster app just shows "LTE-A 2300" for Intraband Contiguous CA (Type 1 CA) along with 4G+ symbol on status bar for 40C;
"LTE-A 2300+2300" will be shown if a Intraband Non-Contiguous (Type 2 CA) is working on device. However this 2nd will not be shown monstly on mediatek devices on non-dimensity devices.
Click to expand...
Click to collapse
Hi man, i am not highly technical person but i need help. I am using poco m4 pro 4G (g96) version which is 4G+ supported phone but it doesn't show 4g+ in status bar when mobile data turned on. While my 3 years old redmi note 8 pro showing 4g+ in exact same place exact same network sim card etc. I have tried messing with Apns and engineering mode settings but everything seems fine. i also checked in net monster app and poco is not combining bands while redmi note 8 is doing it so. i have tried installing other region roms as well but issue is still same.. Any idea what's going on?