A user "fffft" has started a very useful thread where he is using qpst and other steps to open more radio bands on all Qualcomm devices.
With that being said users can go to his thread (in the galaxy s5 section) of xda to find out more and hopefully bring a way to open more bands on the z3. I'm hoping some Dev on the z3 section can take a look at it and maybe help us out to make it a little clearer.
D6633 already supports all US bands for both TMO\AT&T.
which band are you looking to enable?
The new 700 band tmobile acquired from Verizon
it probably won't be that easy
http://www.awt-global.com/resources/700-mhz-band-plan/
the phone supports band 17 (700mhz blocks B&C), while T-mobile uses block A of band 12 (700mhz block A&B&C, ).
band 17 was created because block A was too near the tv channel 51 (that broadcasts just next to it). hence, a phone with band 17 support probably has a decent hardware filter that blocks off tv channel 51 as well as block A.
maybe you'll still be able to get some signal afterall?
Related
Hello I have a problem with my LG G2 (D802) Europe model! My carrier have relase 4G in bands 38B 2600 MHz TDD buth lg g2 d802 not have this bands, has instead bands TDD 40B 2300 Mhz!
I can add this bands on my g2?
The new license the company in 2600 MHz band (TDD) has been acquired by a process of transfer of RCS & RDS and 2K Telecom, with the agreement of the National Authority for Management and Regulation in Communications (ANCOM).
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Thank you in advance! And sorry for my bad English!
Unfortunately these bands are not something we can add/remove but some chips are hardware capable only that they're restricting them for some reasons.
LE: https://www.youtube.com/watch?v=AYe4CLJzmQg#t=76
Try to follow the clip above if you are from RO(the guy who made this wrote the instructions in romanian), should give you what you wanted but apparently everybody is still complaining about band 38 not doing much
I'm also in the same situation, i keep finding stuff that leads me to think that it's possible, first of all the snapdragon 800 supports LTE band 38, there are several threads that have unlocking guides and claim in the first post that several devices have been unlocked (I did not manage on mine unfortunately).
From what i've seen the One plus one has managed to unlock that LTE band, a Galaxy S5 and several phones that have MTK chipsets (with only root access and an app).
So unlocking LTE bands is not impossible (if there is hardware support of course) .
Really hope someone will give us some useful info on this. (we got 4g and extra 10gb of traffic for free, but only on 4g)
Any TMO USA customer's with a Oneplus 2 able to connect the Band 12 LTE? Does the Oneplus 2 have VoLTE?
I have read a few articles/posts about band 12 being disabled on the 2015 Moto E's and G's. Something to do with not being able to make 911 calls when band 12 is the only available connection and VoLTE is not supported on the device. Since that is a violation of federal laws, Moto has removed the bands via a firmware update.
Just curious if the OP2 has the same issue as I just ordered one with an invite.
Thanks!!!!
I'll let you know if I get mine before you. I ordered this morning. Hopefully someone else has the answer and can shed some light on it.
The more pertinent question to ask is, does/will the OP2 have/support e911 to pass volte certification on T-mobiles network for band 12? Because band 12 is enabled for the North American version (A2005) according to the FCC site. If this is the case, then band 12 functionality will be good to go with it. So, the short answer is, no, band 12 will not work out of the box with T-Mobile.
Edit: However, there is this.
Edit 2: This too.
Per another thread here on XDA, band 12 is working on the OP2. It will not cause issues if you also have access to TMO 3G bands. But this will prevent making/receiving calls if band 12 is the only available signal from TMO due to the lack for VoLTE.
http://forum.xda-developers.com/oneplus-2/general/op2-band-12-t-mobile-t3198344
i need the band 4(aws) but the XT1642 just have LTE bands 01/05/07/08/19/20/28
have any way to change or chose the bands? or its hardware
Thanks
I am also wondering about this. Someone please give it a productive thought.
Any ideas on this? I've read about this method http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269 and it should work with the Qualcomm Proccessor of the Moto G4 plus, but I don't know the code to activate the Diag.
Hardyblack said:
Any ideas on this? I've read about this method http://forum.xda-developers.com/cro...ad-progress-please-leave-im-updating-t2871269 and it should work with the Qualcomm Proccessor of the Moto G4 plus, but I don't know the code to activate the Diag.
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There are limitations because of the hardware bits (RF amps) that are missing. For example if the radio works on LTE band 17 (DL 740Mhz, UL 710MHz), then it might be tricked to work in LTE band 12 (DL 737.5MHz, UL 707.5MHz), they are "close enough" to work.
Also I had a Alcatel phone that was sold by T-Mobile with one of the existing bands (LTE 5) de-activated because it was not used by T-Mobile. After unlocking the phone (legally) it would still work poorly on AT&T network - and then I was able to activate that band by using the above software - because the needed RF amps where already present inside.
LTE band 4 AWS is a special animal, the DL and UL frequencies are VERY far apart. Not matching anything else, so even if we can program the radio to work in those bands, the output RF amps will just not be able to perform.
List of frequencies: http://niviuk.free.fr/lte_band.php
SoNic67 said:
There are limitations because of the hardware bits (RF amps) that are missing. For example if the radio works on LTE band 17 (DL 740Mhz, UL 710MHz), then it might be tricked to work in LTE band 12 (DL 737.5MHz, UL 707.5MHz), they are "close enough" to work.
Also I had a Alcatel phone that was sold by T-Mobile with one of the existing bands (LTE 5) de-activated because it was not used by T-Mobile. After unlocking the phone (legally) it would still work poorly on AT&T network - and then I was able to activate that band by using the above software - because the needed RF amps where already present inside.
LTE band 4 AWS is a special animal, the DL and UL frequencies are VERY far apart. Not matching anything else, so even if we can program the radio to work in those bands, the output RF amps will just not be able to perform.
List of frequencies:
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I'd love to say that I understood you but I'm very ignorant about bands and frequencies.
I read that the QC SnapDragon 617 has a X8 LTE Modem (can't link because I'm new, but it's on the QC webpage) which has the Snapdragon Global All Mode, and it's supposed to support band 4 AWS. I don't know if that helps with the output RF amps, or I'm totally doomed.
Yes the X8 Modem supports the bands. But it needs something else to work. Those bits are soldered on the US version and not on the EU one. Similar, on the EU one there is band 20 that is not present on the US hardware.
Is there any way to switch the lte bands. Normally I would dial #*#*4636*#*# but the phone information is saying its not available on this device. Both my nexus 6p and my old note 7 got good signal but this phone is horrible as far as signal strength goes.
McQueefus said:
Is there any way to switch the lte bands. Normally I would dial #*#*4636*#*# but the phone information is saying its not available on this device. Both my nexus 6p and my old note 7 got good signal but this phone is horrible as far as signal strength goes.
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this is my question as well. AT&T page for V20 lists LTE bands and band 17 is NOT among them. band 17 is supposedly the main ATT LTE band, which basically means you will only be able to get LTE on V20 on ATT on the backup LTE bands where they are available ...
i'm looking for confirmation that this is true, because who knows - maybe some idiot just forgot to type in number 17 on that info page ...
Notes, iPhones and Pixel all have band 17 ...
obviously i won't be getting iPhone and i can't get the Note. i didn't really want to get the Pixel because i feel like it's overpriced ...
but if what you're saying about V20 getting bad signal is true then Pixel may be the only choice ...
i started having my suspicions about V20 when i heard it won't be coming out in UK, which i thought was very odd ... but apparently one difference between Snapdragon 821 in Pixel and 820 in V20 is that 821 has more LTE bands, which would make it better both for ATT and better as a global phone for travel ...
again, i'm looking for confirmation that this is true.
HELP ???
McQueefus said:
Is there any way to switch the lte bands. Normally I would dial #*#*4636*#*# but the phone information is saying its not available on this device. Both my nexus 6p and my old note 7 got good signal but this phone is horrible as far as signal strength goes.
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If you're talking about being able to choose specific LTE bands, I do that on my Tmobile handset using this dial code (use at your own risk)
*#546368#*918# - for AT&T you need to use 910 or 915 depending on your model # (not sure why AT&T has 2 different model #'s)
So it would be
*#546368#*910# or *#546368#*915#
Then
Go to Field Test
Modem Settings
LTE Band Selection
Choose band
To revert back to auto scanning
Go to Field Test
Modem Settings
Network Mode
Automatic
nest75068 said:
Go to Field Test
Modem Settings
LTE Band Selection
Choose band
To revert back to auto scanning
Go to Field Test
Modem Settings
Network Mode
Automatic
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The 910 doesn't have those options under modem settings.
g1981c said:
this is my question as well. AT&T page for V20 lists LTE bands and band 17 is NOT among them. band 17 is supposedly the main ATT LTE band, which basically means you will only be able to get LTE on V20 on ATT on the backup LTE bands where they are available ...
i'm looking for confirmation that this is true, because who knows - maybe some idiot just forgot to type in number 17 on that info page ...
Notes, iPhones and Pixel all have band 17 ...
obviously i won't be getting iPhone and i can't get the Note. i didn't really want to get the Pixel because i feel like it's overpriced ...
but if what you're saying about V20 getting bad signal is true then Pixel may be the only choice ...
i started having my suspicions about V20 when i heard it won't be coming out in UK, which i thought was very odd ... but apparently one difference between Snapdragon 821 in Pixel and 820 in V20 is that 821 has more LTE bands, which would make it better both for ATT and better as a global phone for travel ...
again, i'm looking for confirmation that this is true.
HELP ???
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THAT IS NOT THE DIFFERENCE. Modem and CPU part of the SOC are totally different things. The pixel is and unlocked and more likely to support more bands as unlocked phones tend to be more globally friendly. Chances are that certain bands are on there but T-Mobile has it disabled or LG. T-Mobile is usually more bands friendly but not always, as the HTC M8 was seriously gimped in the LTE bands, didn't even support T-Mobile's band 12. I would look at the unlocked version of the V20 to decipher more info.
And you're welcome for the undeserved thanks. Your comment made no sense. Qualcomm modems for certain phones are usually about 2-5 different sets depending on markets a phone will serve. It is usually 2 or 3 when the phone is released worldwide basically and every carrier and market will have certain bands disabled for whatever reason. It also rare for developers to enable them as it takes specialized hardware or knowledge of the software. Another factor is if the antenna for certain bands are even in the phone. No antenna for a band then no firmware will ever be able to enable it, much less some hijinks tweaking.
@rbiter said:
THAT IS NOT THE DIFFERENCE. Modem and CPU part of the SOC are totally different things. The pixel is and unlocked and more likely to support more bands as unlocked phones tend to be more globally friendly. Chances are that certain bands are on there but T-Mobile has it disabled or LG. T-Mobile is usually more bands friendly but not always, as the HTC M8 was seriously gimped in the LTE bands, didn't even support T-Mobile's band 12. I would look at the unlocked version of the V20 to decipher more info.
And you're welcome for the undeserved thanks. Your comment made no sense. Qualcomm modems for certain phones are usually about 2-5 different sets depending on markets a phone will serve. It is usually 2 or 3 when the phone is released worldwide basically and every carrier and market will have certain bands disabled for whatever reason. It also rare for developers to enable them as it takes specialized hardware or knowledge of the software. Another factor is if the antenna for certain bands are even in the phone. No antenna for a band then no firmware will ever be able to enable it, much less some hijinks tweaking.
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OK i followed your advice and looked up Unlocked V20. i'm not allowed to post links yet but from bhphotovideo page the unlocked US version has LTE bands: 2, 3, 4, 5, 7, 12, 13, 17, 20, 25 which includes the band 17 ...
while the ATT page lists LTE bands: 1, 2 ,3, 4, 5, 7, 12, 20, 29, and 30 which does NOT include band 17 ...
now the question is, assuming that information is correct, why on earth would ATT chose the version of a phone that doesn't have the main ATT band ?
is there any way to find out whether the above information is accurate ?
as an ATT subscriber, would there be any advantage / disadvantage for getting unlocked phone from B&H versus ATT branded phone from ATT ?
should i try to contact some sort of ATT technical support to try and get an answer ?
EDIT:
according to article titled "LG V20 Model Numbers (F800, H910, H918, H990 DS Dual, H990N Dual, H990T, LS997, US996, VS995) Differences" from techwalls dot com the ATT version has bands: 1,2,3,4,5,7,12,17,20,30 which again has the band 17. it has same number of bands but compared to information on ATT page it subtracts band 29 and adds band 17 ...
frankly, this makes far more sense than ATT page info, but for 800 bucks i need to know for sure ...
EDIT:
according to frequencycheck website the ATT version of V20 ( H910 / H915 ) supports all ( 8 out of 8 ) bands used by ATT, all 4 LTE bands as well as both GSM and both UMTS bands used by ATT.
according to LG's own website H910 has: 2/4/5/12/29/30, Roaming 1/3/7/20, and CA ... which is the same was what ATT lists except for "CA" ...
Band 12 replaces band 17
The way I understand it, band 12 and band 17 covers the same frequency range. At&t has achieved (they were forced by FCC) interoperability between band 12 and 17 now. So band 17 is essentially obsolete and only useful if you are on the at&t network. If you have band 12 capability on your phone, you can use any 700mhz at&t tower that formerly may have only supported band 17. Now all those towers support both bands. And you can use smaller carrier towers too if you have band 12 capability.
hello, just wondering if i can change 4G bands on my Motorola 4G Plus (XT1642) i cannot use 4G on USA or Mexico, only 3G or H+, i was checking on google and saw something to change baseband to unlock all bands or something like that, can some expert tell me if this is possible or not?? here is my Phone Information:
Software Channel:
Retapack
Android Version:
7.0
Android Security Patch Level:
October 1, 2016
Baseband Version:
M8952_70025.20.03.52R
ATHENE_EMEA_DSDS_CUST
Kernel Version:
3.10.84-gf8fdcaa
[email protected] #1
Fri Oct 14 16:27:08 CDT 2016
Build Number:
NPJ25.75-2
Thanks for your help
Just wondering if I need to change the Modem file or something to make it work on another country as 4G
Same issue in the Netherlands with my Moto Plus. No 4G only G3 or lower
the weird thing is that no one knows if this is possible lol, no experts yet for moto g4 plus
Or it has multiple bands and it's unclear what you want to change. It has Edge HSPA and LTE for GSM and evdo and LTE for CMDA. That makes it a true world phone. Unless your variant does not support it.
idered said:
Just wondering if I need to change the Modem file or something to make it work on another country as 4G
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Do that and you probably wont have service at all. I don't think anyone has been able to unlocked bands.
DutchSnake said:
Same issue in the Netherlands with my Moto Plus. No 4G only G3 or lower
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did you flash the nougat test build?
Droidphilev said:
did you flash the nougat test build?
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No it's still stock android, though if i use my Galaxy s5 4G pops up immediately
Did not see any reason to use custom rom jet...
Got it fixed, call your provider and ask to reset QOS / data. 4G pops right up after restart.
For those wondering: it's not possible. One can technically unlock additional bands following QPST tutorials, and actually changes does stick, however model number cannot be changed which is the one that "tells" the device which bands to use. This has been my personal experience
It's not that. You can unlock the bands with QPST, but if the actual RF amplifiers cannot work on those bands, you won't get signal. One can be lucky if for example adds 800MHz band to a device that already has 850MHz, but the signal strength might be lower than expected.
http://www.radio-electronics.com/in...ong-term-evolution/lte-frequency-spectrum.php
I did "add" via Qualcomm software the EU band 20 to my US phone that had band 5, and I will be able to test it when I get there next week. The US phone has the other main two EU bands (bands 3 and 7, urban mostly).
SoNic67 said:
It's not that. You can unlock the bands with QPST, but if the actual RF amplifiers cannot work on those bands, you won't get signal. One can be lucky if for example adds 800MHz band to a device that already has 850MHz, but the signal strength might be lower than expected.
http://www.radio-electronics.com/in...ong-term-evolution/lte-frequency-spectrum.php
I did "add" via Qualcomm software the EU band 20 to my US phone that had band 5, and I will be able to test it when I get there next week. The US phone has the other main two EU bands (bands 3 and 7, urban mostly).
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So you're telling me there's a chance? I do have a XT1622 which has bands 1(2100), 3(1800), 5(850), 7(2600), 8(900), 19(800), 20(800), 28(700), 40(2300). I'm trying to use it with band 4 (1700/2100), what should I try next then?
Band 4 is "special" because it has such a wide frequency difference between uplink and downlink that I doubt it will work. The UL for band 4 is the same like band 3, but the DL for band 4 is more like band 1.
Not sure if they can be "coupled" like that, it might... Qualcomm modem reprogramming - to get in that mode it's easy on our phones, Power on + Vol Up and then scroll to Qcom... You need the special software (2 pieces, both running in the same time on PC), don't ask me how, just search on XDA.