[Q] OPO Tmobile Lte doesn't show! - ONE Q&A, Help & Troubleshooting

My OPO is the Chinese Version and it's running cm11 nightly now.
I have done a lot of research to fix that problem nut none of them worked.
Here is the problem:
I can only use H+, it just does't show 4G or Lte icon. I tried to swich the APN from Tmobile Lte to
Tmobile Lte Ivp6. And dialed *#*#4636#*#* to change the network to Lte/GSM auto.
But still didn't work.
Could someone help me out? I really appreciate it.

ybwbqg9379 said:
My OPO is the Chinese Version and it's running cm11 nightly now.
I have done a lot of research to fix that problem nut none of them worked.
Here is the problem:
I can only use H+, it just does't show 4G or Lte icon. I tried to swich the APN from Tmobile Lte to
Tmobile Lte Ivp6. And dialed *#*#4636#*#* to change the network to Lte/GSM auto.
But still didn't work.
Could someone help me out? I really appreciate it.
Click to expand...
Click to collapse
Have you looked at this thread?
http://forum.xda-developers.com/showthread.php?t=2877031

+1 to what Coug76 said. You'd have to unlock the LTE bands yourself as the Chinese OPO does not support T-Mobile 4G LTE. If you unlock it, then you can make them compatible.

Related

Verizon Galaxy Nexus is not working on Rogers canada ?

Could anybody please help me in this .
Bought this phone from US (verizon) and trying to run it on Rogers canada network.
I researched it on internet and checked these phones are coming as factory unlock. I have tried changing settings in network mode but its showing me only 2 options
LTE/CDMA and CDMA
i have checked on LTE/CDMA but still its not picking up signals on rogers network. please advice if i need to check anything else
Thanks
bindudhindsa said:
Could anybody please help me in this .
Bought this phone from US (verizon) and trying to run it on Rogers canada network.
I researched it on internet and checked these phones are coming as factory unlock. I have tried changing settings in network mode but its showing me only 2 options
LTE/CDMA and CDMA
i have checked on LTE/CDMA but still its not picking up signals on rogers network. please advice if i need to check anything else
Thanks
Click to expand...
Click to collapse
Ummmmm...Rogers is GSM and the Verizon Galaxy Nexus is CDMA. You can't change it. You can't use a CDMA phone on a GSM network. You can't do it with any Verizon or Sprint phone (besides their global phones). The phone is useless to you. The GSM model ships factory unlocked.
Thanks for your reply, this phone is really confusing to me because unlike all CDMA phones it still accept micro-SIM card. and in network mode it asked me to select LTE/CDMA ..could you please tell me why it is saying LTE ?
bindudhindsa said:
Thanks for your reply, this phone is really confusing to me because unlike all CDMA phones it still accept micro-SIM card. and in network mode it asked me to select LTE/CDMA ..could you please tell me why it is saying LTE ?
Click to expand...
Click to collapse
Verizon uses LTE technology as well.
so this one is CDMA for sure and it will work only on verizon ?
bindudhindsa said:
so this one is CDMA for sure and it will work only on verizon ?
Click to expand...
Click to collapse
Well I haven't seen a picture of it, but if it says Verizon on the phone, then yes, it will only work on Verizon.
Thanks lowandbehold , appreciate your help

[Q] I lost LTE on AT&T

I was on a trip recently and I turned off LTE through quick tile because the place I was staying at did not have LTE. Now, I seem to be stuck on HSPA.
I reset network settings and even did a complete wipe of everything and I am still stuck on 3G. I have Preferred network type set to LTE (recommended). I am using the ATT LTE access point (screenshot attached).
Any ideas? Any way to check if it's hardware of software? I am running 44S.
I used to have LTE here and my gf's iPhone 6 has LTE in the same location.
tehcypress said:
I was on a trip recently and I turned off LTE through quick tile because the place I was staying at did not have LTE. Now, I seem to be stuck on HSPA.
I reset network settings and even did a complete wipe of everything and I am still stuck on 3G. I have Preferred network type set to LTE (recommended). I am using the ATT LTE access point (screenshot attached).
Any ideas? Any way to check if it's hardware of software? I am running 44S.
I used to have LTE here and my gf's iPhone 6 has LTE in the same location.
Click to expand...
Click to collapse
I'd think the only reason it'd be hardware is if something went belly up. Seems doubtful to me as bard hardware is fairly rare. More likely software. A few times I've lost LTE after changing out my sim card, and only the phone company doing some type of reset has 'fixed' it. Not often, but enough to be a PITA.
tehcypress said:
I was on a trip recently and I turned off LTE through quick tile because the place I was staying at did not have LTE. Now, I seem to be stuck on HSPA.
I reset network settings and even did a complete wipe of everything and I am still stuck on 3G. I have Preferred network type set to LTE (recommended). I am using the ATT LTE access point (screenshot attached).
Any ideas? Any way to check if it's hardware of software? I am running 44S.
I used to have LTE here and my gf's iPhone 6 has LTE in the same location.
Click to expand...
Click to collapse
Add "hipri" under APN Type, save, reboot & see if that helps. :fingers-crossed:
Put your sim in your gf iPhone and let it get an Att signal then put the sim back in the opo that's what I did with my phone and it worked
Sent from my A0001 using XDA Free mobile app
nasseem said:
Put your sim in your gf iPhone and let it get an Att signal then put the sim back in the opo that's what I did with my phone and it worked
Sent from my A0001 using XDA Free mobile app
Click to expand...
Click to collapse
I tried that. I also put my sim in other OPO and it got LTE. I get LTE with my sim card on OPO thats usually on t-mobile (but his sim did not get LTE on my phone). I also tried my SIM in a nexus 5 and that got LTE as well.
Im fairly sure its hardware failure
tehcypress said:
I tried that. I also put my sim in other OPO and it got LTE. I get LTE with my sim card on OPO thats usually on t-mobile (but his sim did not get LTE on my phone). I also tried my SIM in a nexus 5 and that got LTE as well.
Im fairly sure its hardware failure
Click to expand...
Click to collapse
if t mobile lte works on your opo and not at&t, im sure it's at&t issue.. Do you have a global/international opo unit?
apartmentpasig said:
if t mobile lte works on your opo and not at&t, im sure it's at&t issue.. Do you have a global/international opo unit?
Click to expand...
Click to collapse
I was not able to get LTE with the T-Mobile sim. However the other opo got LTE with my ATT sim.
I have the Global version

D850 AT&T 3G not working?

I cant seem to find network selection menu WCDMA, GSM, LTE etc, neither from the menu nor from the hidden menu 3845*, any solution?
sherrypizza said:
I cant seem to find network selection menu WCDMA, GSM, LTE etc, neither from the menu nor from the hidden menu 3845*, any solution?
Click to expand...
Click to collapse
Explain more? What do you mean by 3g not working?
The D850 stock firmware has those options locked out so it's on the default of 2g/3g/LTE.
Make sure your APNs are set correctly. Is the phone on AT&T?
hyelton said:
Explain more? What do you mean by 3g not working?
The D850 stock firmware has those options locked out so it's on the default of 2g/3g/LTE.
Make sure your APNs are set correctly. Is the phone on AT&T?
Click to expand...
Click to collapse
Nope, I'm outside the USA, I had D850 before and never had problem switching networks, but I can't seem to enable WCDMA, its only working on GSM network mode.
sherrypizza said:
Nope, I'm outside the USA, I had D850 before and never had problem switching networks, but I can't seem to enable WCDMA, its only working on GSM network mode.
Click to expand...
Click to collapse
If you had a D850 stock you where never able to change that.. If you ran a custom ROM then you could had.
How do you know its only working on gsm network mode? What does data icon look like? Does it show E or 4G? Causd AT&T calls 3G 4G
hyelton said:
If you had a D850 stock you where never able to change that.. If you ran a custom ROM then you could had.
How do you know its only working on gsm network mode? What does data icon look like? Does it show E or 4G? Causd AT&T calls 3G 4G
Click to expand...
Click to collapse
It shows just E, on my previous D850, it used to show H. Now I got it pre rooted from someone and it had WCDMA option available, but when I selected WCDMA, my network signals disappeared so I flashed official Kitkat using ToT and now back to square one
sherrypizza said:
It shows just E, on my previous D850, it used to show H. Now I got it pre rooted from someone and it had WCDMA option available, but when I selected WCDMA, my network signals disappeared so I flashed official Kitkat using ToT and now back to square one
Click to expand...
Click to collapse
Just root and flash cloudy rom
hyelton said:
Just root and flash cloudy rom
Click to expand...
Click to collapse
Ok I flashed Cloudy 2.2 and got the options to select network mode but as soon as i select WCDMA or any mode other than GSM, my network signals disappears. Now what?
sherrypizza said:
Ok I flashed Cloudy 2.2 and got the options to select network mode but as soon as i select WCDMA or any mode other than GSM, my network signals disappears. Now what?
Click to expand...
Click to collapse
Well that would only mean that the phone is NOT compatible with 3G in your area/country, Your carrier, OR your APN
hyelton said:
Well that would only mean that the phone is NOT compatible with 3G in your area/country, Your carrier, OR your APN
Click to expand...
Click to collapse
By the way I had D850 few months back and 3G worked fine on it, never had this issue. APN is fine, double triple checked everything
sherrypizza said:
Ok I flashed Cloudy 2.2 and got the options to select network mode but as soon as i select WCDMA or any mode other than GSM, my network signals disappears. Now what?
Click to expand...
Click to collapse
sherrypizza said:
By the way I had D850 few months back and 3G worked fine on it, never had this issue. APN is fine, double triple checked everything
Click to expand...
Click to collapse
Like I said so your 100% sure you had a D850 though? This would rely on your carrier or sim card if the phone was indeed a D850 and worked before.
hyelton said:
Like I said so your 100% sure you had a D850 though? This would rely on your carrier or sim card if the phone was indeed a D850 and worked before.
Click to expand...
Click to collapse
Yes I'm dead sure man. This is the strangest thing happening first time ever. I just went to hidden menu 3485#*850# and even tried RAT Selection from LTE menu and selected WCDMA or WCDMA/LTE. 3G worked for like 30 secs and then again signals dropped.
sherrypizza said:
Yes I'm dead sure man. This is the strangest thing happening first time ever. I just went to hidden menu 3485#*850# and even tried RAT Selection from LTE menu and selected WCDMA or WCDMA/LTE. 3G worked for like 30 secs and then again signals dropped.
Click to expand...
Click to collapse
That sounds more like an APN or carrier problem if its doing that, That is odd though.
Have you tried calling up your carrier?
hyelton said:
That sounds more like an APN or carrier problem if its doing that, That is odd though.
Have you tried calling up your carrier?
Click to expand...
Click to collapse
Yes I did, they said its fine. I just put my sim in my colleague's cell phone and 3G worked. Lol. This is getting annoying
i had same problem 3g not working on d850
What can i do i had same issue with cloudy 2.5 and all others rom including stock kitkat
When i select wcdm only my signals disappear.i have othe one d850 its work fine.
What can i do please help me out.
Thanks.
I have the same problem.I even tried unlocking all the network bands but it still doesnt work.Did anyone manage to fix this? I currently have 3g but if i turn off my phone, i may not get it again till next week.
sherrypizza said:
I cant seem to find network selection menu WCDMA, GSM, LTE etc, neither from the menu nor from the hidden menu 3845*, any solution?
Click to expand...
Click to collapse
If you have a stock rooted ROM, the work around to unlock the network selection menu on AT&T D850 is to edit your build.prop file. Under ro.build.target_operator, you want to change AT&T to OPEN.
I have the same problem, when I put the sim in a different phone 3G works but only shows E when I put it back in my D850. I have tried everything around but nothing. When you put the phone on 3G only the network goes off and can't connect until you switch back to gsm/wcdma auto.
Any help guys.
Thanks
Hi, same probs 3g/4g not working yet factory unlocked . Need help ?
Same here also. Need an Urgent help.
only 2g is working on my unlocked d850 phone. in build.prop i changed from ATT to OPEN. It shown modes to select. i selected gsm/wcdma/lte. but there is no use.
krishna13 said:
Same here also. Need an Urgent help.
only 2g is working on my unlocked d850 phone. in build.prop i changed from ATT to OPEN. It shown modes to select. i selected gsm/wcdma/lte. but there is no use.
Click to expand...
Click to collapse
Mung321 said:
Hi, same probs 3g/4g not working yet factory unlocked . Need help ?
Click to expand...
Click to collapse
Are you sure your carrier supports the bands of the D850?

lte on ATT D850 G3 not connecting

I am using the ATT D850 G3 on a sim that supports the LTE band 3 1800mhz network. its running on the stock 5.0.1. It seems to not connect to the lte band. the issue is with the phone. can someone please help fix this.
adnshah said:
I am using the ATT D850 G3 on a sim that supports the LTE band 3 1800mhz network. its running on the stock 5.0.1. It seems to not connect to the lte band. the issue is with the phone. can someone please help fix this.
Click to expand...
Click to collapse
Just at because the sim does the phone might not support that band.
Sent from my iPhone using Tapatalk
hyelton said:
Just at because the sim does the phone might not support that band.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Hi Hyelton, thank you for your reply. The phone does too, its listed on the specifications and it picks up the band and the network when I do a manual search for available networks. when trying to connect it connects to the HSPA+ network not LTE. I believe this is a limitation that ATT might have added. I need someone help me remove it.
adnshah said:
Hi Hyelton, thank you for your reply. The phone does too, its listed on the specifications and it picks up the band and the network when I do a manual search for available networks. when trying to connect it connects to the HSPA+ network not LTE. I believe this is a limitation that ATT might have added. I need someone help me remove it.
Click to expand...
Click to collapse
AT&T would NOT have a limitation on it. If you do a network search and it comes up, and fails to connect something somewhere else is wrong. Make sure you have the correct APN?
The APN settings have been checked and work fine on a note 3 N9005, somethings up with the d850, can someone help with that please
the phone does, the speck says, roaming 1800 on the att site and even the lg specs say it does. the but i think the stock rom on the att d850 some how prevents it, please help

[Help] How to switch from 3G to 4G

Hello,
I have Samsung GS3 verizon SCH-I535 With CM13 installed , works perfectly , APN well configured and i connect with 3g, but i still have a problem.
Yesterday i upgraded to 4G , when i plugged the new 4g sim card and rebooted, i had no Network at all, i couldnt even make calls, so i go to settings ==> Network ====> and selected GSM/WCDMA and the network and 3g worked , if i chose LTE or other options it will switch the network off and wont work.
Please help me guys , what should i do ??!
RashidVet said:
Hello,
I have Samsung GS3 verizon SCH-I535 With CM13 installed , works perfectly , APN well configured and i connect with 3g, but i still have a problem.
Yesterday i upgraded to 4G , when i plugged the new 4g sim card and rebooted, i had no Network at all, i couldnt even make calls, so i go to settings ==> Network ====> and selected GSM/WCDMA and the network and 3g worked , if i chose LTE or other options it will switch the network off and wont work.
Please help me guys , what should i do ??!
Click to expand...
Click to collapse
The 4G signal that the networks worldwide use are not the same, GSM 4G is not the same as CDMA 4G, also, some 4G devices in the past were not true 4G, they used Wimax which is not actual 4G. My point is, the 4G your network uses is probably a different signal type or its bands do not match the bands the device supports. Research the exact signal type and frequency bands that Verizon supports, then research what signal type and bands that your network supports.
Many times I've seen 4G CDMA devices used on other networks and 4G could never be made to work, they were stuck with 3G because the device did not support the 4G type their network uses.
Most devices on other networks but still have 4G can count themselves lucky.
Thanks for your reply,
I flashed this rom (CM13) ; http://forum.xda-developers.com/gal...m-cyanogenmod-13-0-nightlies-verizon-t3269675
my provider is "Djezzy" , and i think its 4g LTE.
RashidVet said:
Thanks for your reply,
I flashed this rom (CM13) ; http://forum.xda-developers.com/gal...m-cyanogenmod-13-0-nightlies-verizon-t3269675
my provider is "Djezzy" , and i think its 4g LTE.
Click to expand...
Click to collapse
You "think", no, don't assume anything, even if your provider uses 4G LTE, if the bands/frequencies of your network are not supported by the device's hardware then it isn't going to work. As I said the first time, you need to do the research to see what bands and frequencies Verizon uses and then do the research to see what bands/frequencies your service provider uses. I mean find the actual values of Verizon's bands/frequencies and the actual values of your networks bands/frequencies, you need to compare them to see if the use the same bands/frequencies, not just whether its 4G or LTE or not. Do you understand what I'm saying?
Also, their may be radio/modem incompatibilities, the radio modem is part of the stock firmware that remains on the device, ROMs are just the system partition and not the whole operating system, software that is under the ROM is still the software the device came with or had before you flashed a custom ROM.
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