My Moto G3 doesn't connect to 3G or 4G band - Android Q&A, Help & Troubleshooting

Hi, last week I was given a Moto G3 XT 1541 from Spain. The problem is that it doesn't connect to argentinian carrier's 3g or 4g bands, it only works on 2g. A friend told me that I could work it out flashing the firmware of another model like XT1540 which works perfectly on 3g and 4g. Is it a firmware block? Can I solve it flashing another model's firmware? If I flash it, will my phone work or it will be a stone? Thank you ver much.

Yes, you can.
Moto G 3rd generation does not have capability of 2300 MHz bandwidth.
Requirements for a4G
1. A handset that supports 2300Mhz.
2. A 3G plan.
3. USIM (they provide free upgrade)
4. 4G network coverage
I think even HSPA or HSPA+ might not work for me on this phone. I am using a T Mobile family plan here, and comparing th bands given on the website:
"4G (HSPA+)
With 4G, theoretical maximum download speeds range from 21 Mbps up to 42 Mbps. You can take advantage of incredibly fast download speeds, and even use voice and data services at the same time.
Frequencies: Band 2 (1900 MHz), Band 4 (1700/2100 MHz)
3G (HSPA)
With 3G, theoretical maximum download of 14 Mbps. With 3G, you can use voice and data services simultaneously.
Frequencies: Band 4 (1700/2100 MHz)"
"Moto G (XT1550)
LTE (1, 3, 7, 8, 28,40) UMTS/HSPA+ (900, 2100, 850 MHz)
GSM/GPRS/EDGE (850, 900, 1800, 1900 MHz)"
It seems that the uplink is unsupported by my phone and so the phone is unable to use the HSPA/HSPA+ bands. I think the only way to use it is to unlock the 1700 MHz band on my phone.

XT1541: GSM/GPRS/EDGE: 850, 900, 1800, 1900 - UMTS/HSPA+: 900, 2100 - LTE: B1 (2100), B3 (1800), B7 (2600), B8 (900), B20 (800)
Argentina UMS/HSPA+ works on 850 and 1900.
This phone will only get 2g where you are. Flashing another firmware will not fix this.

Related

[Q] Will this phone pick up 3G on AT&T when unlocked?

I have the HTC Radar 4G on T-Mobile. Once I unlock it and use it on At&T, it will definitely do calls, but will it pick up 3G or 4G on the AT&T network? I asked HTC and they were unsure. Thanks!
Do a search in this forum to find your answer.
Sent from my Titan using XDA Windows Phone 7 App
AT&T uses 850 MHz / 1900 MHz for GSM/GPRS/EDGE and the same two frequencies (850 / 1900) for UMTS/HSPA (their 3G/4G service).
T-Mobile uses the same frequencies (850 / 1900) for GSM/GPRS/EDGE, but uses 2100 MHz and 1700 MHz for UMTS/HSPA/AWS (their 3G / 4G network).
If you want to know what phones will work where, compare the frequencies they receive with those of the carrier you want to use.
In the case of the Radar, it uses the following frequencies
GSM/GPRS/EDGE: 850 MHz; 900 MHz; 1800 MHz; 1900 MHz
UMTS/HSPA: 1700 MHz; 2100 MHz
So, for GSM phone calls and data you have a match with AT&T (and, of course with T-Mobile). 3G / 4G is a different story. The Radar has the T-Mobile 3G/4g bands, but not the bands for high-speed data on AT&T.
So, if you are happy just making phone calls and using EDGE data, then you can use the phone on AT&T. If you want 3G /4G as well you have to stick with T-Mobile.
bleh bleh +10
I finally was able to get the h2O SIM card (AT&T service) and surprisingly it picks up 3G! I definitely notice the difference from when it goes from 2G up to the 3G speeds
http://www.htc.com/us/products/radar4g-tmobile?view=1-1&sort=0#tech-specs
Apparently. It says it does 2100/1900/1700/850
*T-Mobile only uses 1700/1900 bands. source
Interesting! I took my specs from the T-Mobile page which omits the UMTS 850/1900 band. Thanks for the correction.
The box clearly states GSM 850/900/1900/2100 AND HSPA/UMTS: 1700/1900/2100
AWS 1700 = T-Mobile, Wind, Mobilicity
UMTS 1900 = AT&T (although they use 850 extensively too), Rogers, Telus, etc
UMTS 2100 = Asia/Europe
My Radar picks up AT&T 3G. Not sure if UMTS 1900 band will be omnipresent on AT&T as a lot have been extended with HSPA 850 as well.
So, whereever you find UMTS 1900, you'll definitely catch AT&T 3G
Hope this helps.
So, will this work with the medianet plan?
z33dev33l said:
So, will this work with the medianet plan?
Click to expand...
Click to collapse
YES!! Gets 6M downloads, 1.5M uploads.

[Q] No HSDPA or 3G on E970 but Nexus 4, What to do?

Hello all. I've just got LGOG recently. Everything seems to work fine except I can't get HSDPA or 3G with this phone. With Nexus 4 and my current sim, I can get HSDPA and/or 3G in the same area. I use the same apn setting but I can only get Edge on my OG.
What I have tried:
- Got to the service [email protected] Only and change Network mode to WCDMA 1900 >>> didn't work. Shows only EDGE.
- Service [email protected] Only then RAT selection and change to WCDMA only >>>> phone won't get any signal.
I would be appreciated if anyone can shred some lights. I was about to sell my Nexus 4 but I have to think again if I can't even get 3G with OG in my area. Thanks!!!
What carrier are you on?
Sent from my Optimus G using xda app-developers app
I am using Walmart family mobile. The APN is set to use epc.tmobile.com in Nexus 4. I tried the same thing in LGOG but I have no luck.
Not sure what's wrong with your phone. I switch between my nexus 4 & og when the batteries die, and data always work.
Sent from my Optimus G
Is it about the 1700/2100 frequency that OG uses for LTE ? I took my friend's AT$T sim card and put in my OG. The 4G works fine.
Ace42: I saw your post about flashing OG radio to N4 radio. Will the flash mod the radio of OG to be exactly the same as what N4 has? For example, will it change from:
GSM: 850, 900, 1800, 1900 MHz
UMTS: 850, 1900, 2100 MHz
FDD LTE: 700 (band 17), 1700/2100 (band 4) MHz
to:
GSM: 850, 900, 1800, 1900 MHz
UMTS: 850, 900, 1700/2100, 1900, 2100 MHz
If so, I would like to try it out but is the mod reversible ? I am pretty new about this so please excuse met if I might ask some stupid questions. Thank you so much.
dohdies said:
Is it about the 1700/2100 frequency that OG uses for LTE ? I took my friend's AT$T sim card and put in my OG. The 4G works fine.
Ace42: I saw your post about flashing OG radio to N4 radio. Will the flash mod the radio of OG to be exactly the same as what N4 has? For example, will it change from:
GSM: 850, 900, 1800, 1900 MHz
UMTS: 850, 1900, 2100 MHz
FDD LTE: 700 (band 17), 1700/2100 (band 4) MHz
to:
GSM: 850, 900, 1800, 1900 MHz
UMTS: 850, 900, 1700/2100, 1900, 2100 MHz
If so, I would like to try it out but is the mod reversible ? I am pretty new about this so please excuse met if I might ask some stupid questions. Thank you so much.
Click to expand...
Click to collapse
The radio bands are hardware dependent, you will not get additional bands from a radio. It is just the att modems may give no mic or speaker audio on T-Mobile and its MVNOs.
Sent from my Optimus G
Thanks for the clarification. I actually tried to flash the phone last night and it doesn't work. I think I will just need to wait for T-Mobile to refarm this area then.
dohdies said:
Thanks for the clarification. I actually tried to flash the phone last night and it doesn't work. I think I will just need to wait for T-Mobile to refarm this area then.
Click to expand...
Click to collapse
They mostly rearmed major cities, there's a service map that shows how very few areas have rearmed 1900.
Sent from my Optimus G

LTE Compatibility

Anyone know what LTE band or bands the Nexus 9 operates on? I need to know where it can be used country wise as band choice varies wildly.
I want to know this too.
Is there anybody who know what lte band support on Nexus 9 LTE version?
I found it.
http://www.htc.com/us/tablets/nexus-9/
Network
2G/2.5G - GSM/GPRS/EDGE:
850/900/1800/1900 MHz
3G - WCDMA:
850/900/AWS/1900/2100 MHz with HSPA+ up to 42 Mbps
4G - LTE:
Bands 1,2,3,4,5,7,8,20
seems very good.

Some advice on bands please

I got a V19 phone from china with Android 5.0. I believe it is a rooted phone, I've seen some of those features. It came in a box that says Android. I have no idea of the manufacturer.
Problem: I cant get the data connection (tmobile, wifi works fine) to get better than the edge network, 2G. I've learned that T-Mobile requires these bands:
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
Lower 700 MHz band 12 (in development) / in service in selected areas
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2
Inside the battery area the phone lists :
GSM 850/900/1800/1900mhz
WCDMA 850/2100mhz (HA)
When I got to engineering mode, I can see other bands that are greyed out.
So my question is this. Is it possible to slick this phone and install software, etc, that allows the bands I need? Or are 'Bands" hard coded into the hardware of the phone? Easier to just buy another phone with correct bands? Advice or links?
Thanks,
Gary B.
my v19 from china same as yours bro.. it says android 10.0 but its features says 6.0ver

S9+ China on T-Mobile US

I have a new unlocked S9+ China (SM-G9650/DS, Qualcomm Snapdragon 845), and I'm trying to figure out if it is fully supported by T-Mobile in the US. I've done some Googling on this, but I'm not sure I understand the results. The supported band specs for the phone, and the T-Mobile frequencies used, are below. Can someone confirm or comment whether the phone is fully supported, or if not what's missing? Thx, Gus
S9+ China SM-G9650/DS Specs:
GSM Mhz band: Quad-Band 850/900/1800/1900
2G network: CDMA 800, GSM 850/900/1800/1900
3G network: CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1700/1900/2100
4G network: LTE Cat18 700/800/850/900/1700/1800/1900/2100/2300/2600
(Bands 1,2,3,4,5,7,8,12,18,19,20,28,29,30)
TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Data network: GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
T-Mobile Frequencies:
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
Lower 700 MHz band 12 (in development) / in service in selected areas
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2
gus_zernial said:
I have a new unlocked S9+ China (SM-G9650/DS, Qualcomm Snapdragon 845), and I'm trying to figure out if it is fully supported by T-Mobile in the US. I've done some Googling on this, but I'm not sure I understand the results. The supported band specs for the phone, and the T-Mobile frequencies used, are below. Can someone confirm or comment whether the phone is fully supported, or if not what's missing? Thx, Gus
S9+ China SM-G9650/DS Specs:
GSM Mhz band: Quad-Band 850/900/1800/1900
2G network: CDMA 800, GSM 850/900/1800/1900
3G network: CDMA2000 1xEV-DO
TD-SCDMA 1900/2000
UMTS 850/900/1700/1900/2100
4G network: LTE Cat18 700/800/850/900/1700/1800/1900/2100/2300/2600
(Bands 1,2,3,4,5,7,8,12,18,19,20,28,29,30)
TD-LTE 1900/2300/2500/2600 (Bands 38,39,40,41)
Data network: GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, TD-SCDMA, UMTS, TD-HSDPA, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A
T-Mobile Frequencies:
LTE Frequencies:
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
Lower 700 MHz band 12 (in development) / in service in selected areas
3G/4G Frequencies (WCDMA):
1700 MHz & 2100 MHz AWS band 4
1900 MHz PCS band 2 (in refarmed areas)
2G Frequencies (GSM/GPRS/EDGE):
1900 MHz PCS band 2[/QUOTE
It will work on T-Mobile frequencies but you won't get Wifi Calling or voLTE. The stock CSC is TGY - Hong Kong, T-Mobile is TMB. I haven't found any way to change the CSC even with custom ROM, but assuming one became available you would trip Knox and lose Samsung Pay, Samsung Health, Secure Folder, OTA Updates and Factory Warranty. Some members have posted in regards to changing the CSC Code in the link below but I'm not certain it's working out. Good luck!
https://forum.xda-developers.com/galaxy-s9-plus/how-to/qualcomm-sm-g9650-hong-kong-china-t3764542
Click to expand...
Click to collapse
baring any unforeseen hidden stuff, you should be good to go for Tmobile...Minus the new Band 71 on the 600mhz spectrum. Honestly, unless you live in the area that will get this deployment, this shouldn't be of concern. As long as you can use Band 2/4/12, you will be ok with Tmobile.
I almost went with this route as well since I wanted to get a Snapdragon version with larger storage size. But I chickened out because I've been reading people having bad signals/not having full LTE speeds with their imported S9+ on TMOUS.
Good luck and let us know!
I used CT Excel Americas (T-mobile mvno) and it worked on CHC firmware. But I forgot to test volte etc.
kevinfan1990 said:
I used CT Excel Americas (T-mobile mvno) and it worked on CHC firmware. But I forgot to test volte etc.
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Please post steps for this. I would like to get VoLTE and Wifi calling

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