Does the S9 support band 71 carrier aggregation (CA)? - Samsung Galaxy S9 Questions & Answers

I know it supports regular carrier aggregation, 6x which is huge. But does it support carrier aggregation with band 71 (600)? I.e. 2+4+71 or 66+71? I know that the 3gpp was working on approving the specs but I'm not sure if they were approved in time to make it into the S9.

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LTE bands combinations

Hi guys,
I know that HTC USA version has different LTE bands in comparison with European and Asian variants.
However what I want to know if the combination of bands to do carrier aggregation are different. For example, both devices support bands B7 and B28 but I don't know if both variations support using these bands together.
Google Pixel lists all the possible combinations of bands in order to get carrier aggregation but I can't find this information for HTC 10.
Do you know if American version support bands 7 and 28 together in order to get carrier aggregation?

carrier aggregation support

Does galaxy a50 support carrier aggregation?
Yes this device support carrier aggregation.
Here is listed supported combinations:
Global/EU-model: https://cacombos.com/device?model=SM-A505F
Latin-America: https://cacombos.com/device?model=SM-A505G

Bands on Dual Sim SM-G988B/DS - Using in US

See:
https://www.ebay.com/itm/Samsung-Ga...hash=item2f3e25929d:m:m-RbzDQrZ-nfGw9V9LUYGlg
Its MSRP. They show band 30 (which is critical for AT&T) and 5G bands, for a dual sim device.
Anyone know if this is accurate?
G988B is Exynos device and that doesn't support well bands and carrier aggregation combinations used in US.
ekerbuddyeker said:
See:
https://www.ebay.com/itm/Samsung-Ga...hash=item2f3e25929d:m:m-RbzDQrZ-nfGw9V9LUYGlg
Its MSRP. They show band 30 (which is critical for AT&T) and 5G bands, for a dual sim device.
Anyone know if this is accurate?
Click to expand...
Click to collapse
According to FrequencyCheck Band 30 is not supported. I've purchased a number of devices from MSRP, their device specs aren't always accurate.
https://www.frequencycheck.com/mode...-td-lte-128gb-samsung-hubble-2-5g#frequencies

US Radio/Modem to enbale US 5G bands on G988N/G9880?

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.

device variant question

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

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