Database Users

it is Possible to unlock or change 4G bands or not??

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.

Any H870DS users getting LTE?

Hi Folks,
I thought I had found a gold-mine here in the United States in the H870DS because it has the quad-DAC and the bands look to be compatible with AT&T and T-mobile. The seller listed band 2 LTE and sadly, according to the box, it is not supported and this is one of AT&T's main bands in my area in California. It still has band 12/17, so, I figured I'd be okay. I cannot for the life of me get it to connect to any LTE though. I've checked and re-checked the APN settings, the network settings (4G preferred) and am out of ideas. Does anyone have this phone and have you successfully gotten it to connect to LTE in the United States? I don't have a T-mobile SIM anymore to try.
-Collin-

I believe AT&T SIMs have issues with LTE on non-AT&T devices until the device IMEI is added into their system.
I am not an AT&T user so I forget the specifics but people often have to call in and have the device IMEI added to their account.. or sometimes this happens automatically after a few hours.
What bands are listed on the box? The thread on XDA listing all the bands shows your model as having B2 LTE (Possible the thread is not correct though) https://forum.xda-developers.com/lg-g6/how-to/info-lg-g6-models-bands-t3571221

I have searched some of the AT&T user forums, it is because different areas have different coverage and certain bands are not licensed properly, so you might not get any LTE signals. I do not know if that is true. But my G6 sure does not have LTE whatsoever.

Thanks for the replies guys. Well, I managed to pick up Band 4 when I walked down the street. I still cannot get 17/12 which is weird because it's the primary LTE band for AT&T. The bummer is that now that I know LTE is working, I can 100% confirm that LTE Band 2 is missing. The eBay listings are wrong and the XDA listing is wrong. I've attached a photo of the box. Oh well
-Collin-

I was interested in picking up an 870DS unit myself. I noticed the discrepancy when it comes to band 2. That had me worried, so I did not pick it up. The 870 DS box shows that band 2 is missing. I have to assume that is correct, so I did not buy.

Sorry to hear that i was thinking of picking up the Korean version myself but if I can't get reliable LTE on att no thanks. I wonder if you could return it to the seller since its technically false advertisement

Well this is unfortunate. I just got mine from Ebay today and was wondering why I couldn't get an LTE signal. The seller did list Band 2 so I'm hoping they will refund my purchase or there is a way to edit the radio.

Sorry for the off-topic question but could anyone tell if the H870DS would support 3G simultaneously on both radios (or 4G on one and 3G on the other simultaneously)? If so it would be worth mentioning here as well.

inquisitor said:
Sorry for the off-topic question but could anyone tell if the H870DS would support 3G simultaneously on both radios (or 4G on one and 3G on the other simultaneously)? If so it would be worth mentioning here as well.
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I am using T-Mobile SIM at SIM 1 and my home country carrier's SIM at SIM2.
It is getting LTE at SIM 1 and UMTS (roaming at AT&T network) at SIM 2.

Fi (T-mobile) is working perfectly for me, full LTE. Cricket (At&t) is hspa+ but no LTE.
For the price I am not unhappy even though I usually use cricket as my primary data sim. It's not what I expected but I knew going in I was shooting craps as there just wasn't a ton of information out for this H870DS variant. It's not a huge upgrade over 3t, just needed to switch it up for a while. I am quite enjoying the screen, camera, and HiFi dac without losing my 2 sim setup.
Edit: Sim one does have full LTE while Sim 2 does not.
The references definitely need to show that there is no B2, B17, or B30 for ATT users though, pretty much a let down there.

solver404 said:
Fi (T-mobile) is working perfectly for me, full LTE. Cricket (At&t) is hspa+ but no LTE.
For the price I am not unhappy even though I usually use cricket as my primary data sim. It's not what I expected but I knew going in I was shooting craps as there just wasn't a ton of information out for this H870DS variant. It's not a huge upgrade over 3t, just needed to switch it up for a while. I am quite enjoying the screen, camera, and HiFi dac without losing my 2 sim setup.
Edit: Sim one does have full LTE while Sim 2 does not.
The references definitely need to show that there is no B2, B17, or B30 for ATT users though, pretty much a let down there.
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I actually got Band 4 to connect on AT&T, but it's pretty sparse and not reliable. I switched that line over to T-Mobile and it works perfectly just as you describe.
I like the phone a lot more than I thought I would. It feels so solidly constructed and the camera I really missed from the V20. I prefer this camera to the one on my S8 9 times out of 10. It's a hair slower to focus, but everything else is better for me.
What's odd is that on AT&T Band 12 is supposed to be compatible with Band 17. On T-Mobile, I connect to Band 12 just fine, but not on Cricket. Oh well, my Cricket line has been canceled anyhow
-Collin-

I'm in San Francisco and unable to get LTE on AT&T or T-Mobile on the H870DS. These LTE bands are listed on the box: 1, 3, 4, 5, 7, 8, 12, 20, 26, 28, 38, 39, 40, 41.

Hi there,
I'm in new Mexico on a at&t go phone plan and on a h870ds.
and I'm defenetly getting LTE.

Does the LG G6 actually reveal the used channel and so the frequency band?
On many Android phones this information will show up after dialing *#*#4636#*#* and tapping "Phone Information" - on the very bottom of this screen you will find a list of available cells including their channel number (called EARFCN for LTE/4G, UARFCN for UMTS/3G and ARFCN for GSM/2G). You can then lookup to which frequency band the EARFCN/UARFCN/ARFCN belongs, e.g. at http://niviuk.free.fr/lte_band.php

Take a look at the 'LTE Discovery' app. The free version will probably have what you need.

pocketfox said:
I'm in San Francisco and unable to get LTE on AT&T or T-Mobile on the H870DS. These LTE bands are listed on the box: 1, 3, 4, 5, 7, 8, 12, 20, 26, 28, 38, 39, 40, 41.
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I can confirm the lack of LTE on T-Mobile in Southern California as well. Very odd as others are reporting success getting LTE on TMO in other geographic locations. :crying:

uid_0 said:
I can confirm the lack of LTE on T-Mobile in Southern California as well. Very odd as others are reporting success getting LTE on TMO in other geographic locations. :crying:
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Doesn't seem odd at all considering that according to frequencycheck.com, some key bands are missing:
T-Mobile LTE Bands
B2 (1900 PCS)
B4 (1700/2100 AWS 1)
B12 (700 ac)
B66
ATT LTE Bands
B2 (1900 PCS)
B4 (1700/2100 AWS 1)
B17 (700 bc)
B30 (2300 WCS)

kurtbird said:
Doesn't seem odd at all considering that according to frequencycheck.com, some key bands are missing:
T-Mobile LT seeE Bands
B2 (1900 PCS)
B4 (1700/2100 AWS 1)
B12 (700 ac)
B66
ATT LTE Bands
B2 (1900 PCS)
B4 (1700/2100 AWS 1)
B17 (700 bc)
B30 (2300 WCS)
Click to expand...
Click to collapse
As noted on the box as well as other first hand accounts, the H870DS does support both B4 and B12 required for T-Mobile. My G3 and my wife's previous 860N both connect(ed) with B4.
On top of this, I now have a solution to the problem via updating the APN settings. The magic change was simply adding ”xcap” to the APN Type setting and setting the Network Mode for SIM1 to GSM/WCDMA/LTE auto radio button.

uid_0 said:
As noted on the box as well as other first hand accounts, the H870DS does support both B4 and B12 required for T-Mobile. My G3 and my wife's previous 860N both connect(ed) with B4.
On top of this, I now have a solution to the problem via updating the APN settings. The magic change was simply adding ”xcap” to the APN Type setting and setting the Network Mode for SIM1 to GSM/WCDMA/LTE auto radio button.
Click to expand...
Click to collapse
It's possible that if you're in an area where only T-Mobile B2 or ATT B30 is available then you wouldn't have LTE.

Was finally able to get 4G LTE in AZ on Band 4. Create a new APN with these settings and make sure network is GSM/CDMA/LTE Auto.
Edit: Also, I had AT&T update their system with the IMEI number of this 870DS that I'm using. That might have something to do with it. It took a couple of weeks too.

LTE+ plus icon?

Here in Italy I got LTE+ icon with TIM carrier but the speed is almost the same reached in classic LTE: 25mb/s download speed.
The same SIM card used in S7 edge reaches 95 mb/s.
With VODAFONE carrier, instead, I ve never seen the LTE+ icon but just LTE and the speed is about 20-25 mb/s.
Anyone want to share his experience?
Thanks!

Anyone?

LTE+ or 4G+ is at lest a higher form of channel bonding. Try dial code *0011#, *2263# should have band selection,(note this may not always work but did on my note5) it should bring up tower info. Band 2 is [email protected] when LTE+ you will have like band 4 not sure it might be [email protected], this channel bonds to 30mhz with the 20mhz becoming download only vs 10mhz for download and 10mhz upload. The band 4 or whatever your carrier chooses (I have AT&T we use Band 2 and Band 4 as our top bonding, I set Band 2 as favored for default, best performance) becomes the upload only. This makes a + environment like HSPA vs HSPA+.

TechNyne66 said:
LTE+ or 4G+ is at lest a higher form of channel bonding. Try dial code *0011#, *2263# should have band selection,(note this may not always work but did on my note5) it should bring up tower info. Band 2 is [email protected] when LTE+ you will have like band 4 not sure it might be [email protected], this channel bonds to 30mhz with the 20mhz becoming download only vs 10mhz for download and 10mhz upload. The band 4 or whatever your carrier chooses (I have AT&T we use Band 2 and Band 4 as our top bonding, I set Band 2 as favored for default, best performance) becomes the upload only. This makes a + environment like HSPA vs HSPA+.
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unfortunatelly these codes don't work in italy...

Ive got a couple of questions and wondering if anyone can help.
Gsmarena lists the note fe as cat12, dose anyone know if cat9 would be supported a cat12 device?
Prior to doing any mods on my n935s, i was not getting 4G+ or the highest data speeds using the EE UK network. On my G935F with the same sim card id would get 4G+ and higher data speeds. Im pretty sure that is due to the fact the S7 was able to make use of 3 cell carrier aggregation. The G935F is CAT 9.
I have installed TWRP on my N935S and then installed the Note 7 BTU CSC to see if my N935S can make use of 3CA, however nothing interms of data speeds has changed. I dont think the phone allows the 3CA connection. I can see from the specs that all the nessacery bands are supported by the N935S.
Does anyone have any ideas?

Pro 3 x727 - UMTS B4 (1700/2100 AWS 1) Frequency?

I'm eyeing this phone to replace my well worn S5. Does anyone know for sure if the x727 variant has the UMTS B4 1700/2100Mhz? The listings on the various Chinese sites are hit and miss, that's why I'm looking for first hand info. Based on my research the x720 appears to have 3G band 4, but it is unclear if the x727 does.
Thanks!

x727 is the NA version, which launched alongside the US version of Le Eco's online store. It supports B2/4/12 and VoLTE + WiFi calling on T-Mobile.

I'm planning to use it on Freedom Mobile in Canada on their 3G network (not LTE), that's why AWS band 4 on 3G is a requirement.
Thanks.

paradoxum said:
I'm planning to use it on Freedom Mobile in Canada on their 3G network (not LTE), that's why AWS band 4 on 3G is a requirement.
Thanks.
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T-Mobile US also relies on 1700/2100 AWS B4 for HSPA/UMTS. LTE discovery shows the LTE band, so I'm not sure how to do the same for HSPA.

I found the FCC application for the x727 and the SAR exposure report lists WCDMA band 4 @ 1700Mhz, so I'm good to go. Coincidentally it appears the device has the highest radiation level on that band.
page 4:
https://apps.fcc.gov/eas/GetApplicationAttachment.html?id=3160895
The full FCC application can be found here:
https://apps.fcc.gov/oetcf/eas/repo...d=tRbB27x6FnmQ5/KxMnrdWw==&fcc_id=2AFWMLEX727
Thanks for you help.

Le Pro 3 727 Bands

Does anyone know if the USA version of the Let pro 3 supports AWS 3g? (1700 band) Also I know the modem files for the XT720 can be flashed on the 727 but could someone point me to a thread that has the modem filter for both variants?

Yes. It supports both Band 2, and Band 4 WCDMA (HSPA). I have connected to both multiple times on my x727.

Here's a screencap of all 3G bands it supports on x727.

Ascertion said:
Here's a screencap of all 3G bands it supports on x727.
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Thank you I'm going to be using it on freedom mobile in Canada. Which uses the same band as TMobile for 3g. So once again big thanks ?