Ok, so here's the idea:
According to the wiki page for the Universal, the phone uses the Qualcomm MSM6250 for the cellular functions. If you look at page 5 on the datasheet for the MSM6250, you'll see that the chip does indeed support quad-band GSM, as well as UMTS 1900 (1850 MHz - 1910 MHz) in addition to the UMTS 2100 band (1920 MHz - 1980 MHz). I assume these North American frequencies were disabled in the chipset's firmware to avoid extra licensing costs since the device would never be sold in North America.
Qualcomm has a program which allows for diagnostics and configuration of baseband chips in phones called QPST. If you look on page 83/84 of the program's user manual, it appears that you can specify which band classes the phone is allowed to connect to. I have no idea if this will work since my Universal hasn't arrived in the mail yet, but I just wanted to share what I found with all of you.
Being a new member, I can't post links to the pdf files, and the files themselves are apparently too large to upload. However, if you search on google for "80-v1400-3_h_qpst_ug.pdf" you can find the QPST manual, and "MSM6250 datasheet" for the chipset datasheet.
This, I help to share it here
This seems interesting, please keep us informed on how all develops.
If anyone can help on this please post here, if not stay away of posting "I wish, I like", etc.
Will sticky for the time being
rockstar95 said:
Ok, so here's the idea:
According to the wiki page for the Universal, the phone uses the Qualcomm MSM6250 for the cellular functions. If you look at page 5 on the datasheet for the MSM6250, you'll see that the chip does indeed support quad-band GSM, as well as UMTS 1900 (1850 MHz - 1910 MHz) in addition to the UMTS 2100 band (1920 MHz - 1980 MHz). I assume these North American frequencies were disabled in the chipset's firmware to avoid extra licensing costs since the device would never be sold in North America.
Qualcomm has a program which allows for diagnostics and configuration of baseband chips in phones called QPST. If you look on page 83/84 of the program's user manual, it appears that you can specify which band classes the phone is allowed to connect to. I have no idea if this will work since my Universal hasn't arrived in the mail yet, but I just wanted to share what I found with all of you.
Being a new member, I can't post links to the pdf files, and the files themselves are apparently too large to upload. However, if you search on google for "80-v1400-3_h_qpst_ug.pdf" you can find the QPST manual, and "MSM6250 datasheet" for the chipset datasheet.
Click to expand...
Click to collapse
After doing some more research, it seems like the NV_BAND_PREF_I value in the NV-ram has to be changed. From what I've read, this value "stores the band-class preference on a per NAM basis." I found a recent thread discussing this same idea, except it's going from US bands to European bands on the Motorola Atrix. As seen in post #8, a member edited the NV_BAND_PREF_I and apparently was successful.
http://forum.xda-developers.com/showthread.php?t=992635
You should check out the files i posted on this thread link. It has some debug tools for the modem that might help -Activesync2Qct, Activesync2WModem, BandSel, NetSel, openqct, Uni_AT,WModem, WmodemX, and xBBBL.
NetSel has options for gsm850 and umts1900, don't know if it does anything though.
Dear xda Members and / or galaxy note 2 Users,
I'm a bit confused about the various versions of the Note 2.
In a few days I'll visit Florida and intend to buy the LTE version from Walmart.
ht.tp://ww w.walmart. com/ip/Samsung-Galaxy-Note-II-Smartphone-Titanium-Gray/22374238
(I don't know if shoplinks are allowed, but you can't buy it directly here and i hope you can accept it anyway this time)
However, I need to know whether the phone works in Europe/Germany and with which communication standards.
Is there a difference between the US and European GT-N7105?
on ht.tp://e n.wikipedia. org/wiki/Samsung_Galaxy_Note_II i found various versions called
AWS phone
CDMA/EV-DO phone
TD-SCDMA phone
Dual-cell HSPA phone.
and the LTE where they tell that it would be kind of an "International" phone.
"Most of the variants support GSM/GPRS/EDGE in the 850 Mhz, 900 Mhz, 1.9 Ghz, and 2.1 Ghz bands; and UMTS/HSPA+21 in 850 Mhz, 900 Mhz, 1.9 Ghz, and 2.1 Ghz"
Does the version i found on the walmart page support UMTS? there are only specifications that it can handle GSM and LTE, but not which LTE Bands.
(I think I need support for 800 MHz, 1800 MHz and/or 2600 MHz in Western Europe)
correct me if i'm wrong with any statement and enlighten the confusion for me if pssible
Thanks in advance !
PS: I'm not allowed to post outside links here, so I addet space characters before .com and .org and in the www and the "en" and dots between the ht.tp's. remove them before copying.
I have been looking into some Chineses clones of cell phones and a majority of them use the MT6589 SoC which it very cross compatible with firmware across the board of other phone that use this chip. Most websites say these phone only support 3G:WCDMA 850/2100Mhz which wouldn't work in the USA for 3G speeds. But according to the official site for this chip it has an advanced multi-mode UMTS Rel. 8/HSPA+/TD-SCDMA modem built into it.
My questions are,
1. If this SoC has HSPA+ built into it then why do most site say it only has WCDMA 850/2100Mhz and not the HSPA+ frequencies?
2. If this Chipset has HSPA+ built in but just not enabled, how would we enable it?
I saw the same thing and posted something similar to your thread at a few places....nobody answered. the RF chip use by the 6589 is the mt6167..maybe something I miss.. How it is not been done yet....
if you find something, let me know.
Yes! it supports it
I own a mt6589 chipset device and it supports HSPA+
Hope this helps you. Well my device is Micromax A116
Hi All,
I bought an Oppo Find 7 x9077 which doesn't support the 1700 MHz band that is used by T-Mobile/ATT and most other major carriers in the US in order to get LTE.
My question is, is there a way to unlock the 1700 MHz band using software or firmware flash or is the limitation on the hardware side?
Thanks,
Colin
The 1700Mhz band is not supported by hardware on the X9077.
I see, thank you for the reply!
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.