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I have an unlocked Defy from T-Mobile USA that I'm using with my AT&T service, but I'm only getting EDGE wherever I go, no UMTS at all, and I've even heard of people getting it to run on HSPA bands. I know already that HSPA is available everywhere from my home to my workplace, thanks to my Atrix 4G. I've rooted the Defy and it's running Cyanogenmod 7 latest. Any help would be greatly appreciated, as I can find nothing on this forum or on Google to remedy the issue.
You should try to change the freq via baseband switcher.And restart.
Maybe you got the "2g only" checked in networks settings..uncheck that.
Settings >Wireless & networks > Mobile networks
You can also put automatic(2G and 3G) mode in GSM/UMTS network preferences.
Thanks for the reply Viper. I just noticed the baseband is set to some central Europe nonsense. Should I change it to one of the T-Mobile USA band settings? There's nothing there for AT&T.
Edit: I changed the baseband to US T-Mobile 3.Something, whichever was latest. 2G only was not checked. I'm still getting 2G only. Could it be my APN settings? Could I copy the APNs from my Atrix?
I'm having a problem with my AT&T connection as well, but I've been using my phone unlocked on the network since March with no problem. I'm new to modding, but OCD about streamlining my electronics. My friend suggested rooting my device and flashing a new ROM. I decided on stock Nordic Froyo, and it makes me so happy not to see all the T-mobile crap in my apps tray.
BUT the collateral damage is not so hot. I have no 3g or even 2g connection anymore. I tried the fix in this thread http://forum.xda-developers.com/showthread.php?t=944258 and was able to get a signal with 4 bars instead of the previous state of emergency calls only, but no letters like E or 3g and no ability to use the internet/transfer data. I also installed the broadband switcher in this thread http://forum.xda-developers.com/showthread.php?t=1052745 and tried all of the T-mobile US bands. No luck. I did rest the APN to default. No change. I've been using wifi, but will have to go back to work soon. Not having access to the smart part of my smartphone will feel sort of like having an arm cut off.
I'm not sure what to do next. I could try flashing another ROM, but from what I've read in the forums, that's no guarantee.
If anyone has any suggestions to help a noob, I'd be forever grateful.
Thanks in advance!
Thanks for the link, halah. Do I apply this as an update.zip from recovery? Or install?
Never mind, it won't work for me, for whatever reason.
Hello all,
I have resorted to posting here as i have trawled the web for a solution without any luck. Here is my problem hope you can help.
I have a nexus 4 and am currently in Spain. After traveling abroad and not using data roaming i came back to Spain to no mobile data connection. The usual tricks of restarting, toggling mobile data airplane mode didn't work. It was quite frustrating. I went as far as to cancel my contract and go for a prepaid card - Lebara as they have a decent data tariff - but the problem persisted. I have configured the APN, gone through all the restart procedures, even factory reset the phone twice and nothing helped.
Mobile data is switched on. I have the APN set up as needed. However, the H E H+ never appear next to the bars on top no matter what i do. I have ordered another SIM card from a different operator in desperation but it might not be here for another week.
I really hope it is not the phone but now I really don't know. I am taking suggestions...
Thanks
PS one thing I just noticed is that if I download apps from my browser the device is listed as vodafone nexus 4 although I have never been on vodafone. This might have some relevance
tiobojo said:
Hello all,
I have resorted to posting here as i have trawled the web for a solution without any luck. Here is my problem hope you can help.
I have a nexus 4 and am currently in Spain. After traveling abroad and not using data roaming i came back to Spain to no mobile data connection. The usual tricks of restarting, toggling mobile data airplane mode didn't work. It was quite frustrating. I went as far as to cancel my contract and go for a prepaid card - Lebara as they have a decent data tariff - but the problem persisted. I have configured the APN, gone through all the restart procedures, even factory reset the phone twice and nothing helped.
Mobile data is switched on. I have the APN set up as needed. However, the H E H+ never appear next to the bars on top no matter what i do. I have ordered another SIM card from a different operator in desperation but it might not be here for another week.
I really hope it is not the phone but now I really don't know. I am taking suggestions...
Thanks
PS one thing I just noticed is that if I download apps from my browser the device is listed as vodafone nexus 4 although I have never been on vodafone. This might have some relevance
Click to expand...
Click to collapse
Go to the dialer, press*#*#4636#*#* this brings you into new menu. go to the phone information to see to what network you are connected. if you scroll down you can force the phone to use 3g (WCDMA only) see if this work. this seting will change when the phone goes into reboot.
also if you happen to have the "3g bug" connecting to a wlan might help as stated by some users.
For me starting the hot spot function does the trick.
endet said:
Go to the dialer, press*#*#4636#*#* this brings you into new menu. go to the phone information to see to what network you are connected. if you scroll down you can force the phone to use 3g (WCDMA only) see if this work. this seting will change when the phone goes into reboot.
also if you happen to have the "3g bug" connecting to a wlan might help as stated by some users.
For me starting the hot spot function does the trick.
Click to expand...
Click to collapse
Thanks for the advice endet. I have done this but to no avail. When I switch to WCDMA only in the field GPRS service it says connecting for about a minute and then disconnected. After restart it is directly disconnected. I have toggled between GSM only and WCDMA only and restarted the radio. Played with the other settings in this screen and nothing. Only once did I get brief flash of the H on top but trying to replicate the steps didn't lead to anything.
Starting tethering didn't help either...
Could be something with my IMEI? Or CellInfoListRate?
Hello dear XDA Community,
I have an american Nexus 6P (used with Verizon) which is currently used with a Russian cell carrier "MegaFon"
I had troubles with connecting to their LTE, for some reason my phone just wouldn't connect to the LTE and only stick to HSPA or HSPA+ even though an iPhone near me gets LTE signal just fine, the SIM card is fine in the other phone as well. So I started messing with my phone to find if I could fix it, first I started with going back to full stock, that didn't help, the phone still only accepted HSPA signal. Then I tried multiple ROMs and Stock Images but the issue of not connecting to LTE persisted. Then I found out about *#*#4636#*#* menu (aka Phone Info menu) and I started messing with it, which again did not do any good until I hit the menu button and pressed Select Radio Band (P.S. please don't mess with those settings) where I tried selecting all 3 different "GSM/UMTS" Bands. I tried USA band, Band mode 6 and Band mode 7, but this just broke down my signal completely, I cannot connect back to the carrier network no matter what I did. I've tried factory resetting, flashing radio img's, flashing stock/custom. NOTHING HAD HELPED/WORKED
I'm now stuck with a phone that doesn't work at all, and I'm on business trip so I'm just pulling out my hair for messing with those settings in the first place.
Does anybody know a possible fix to this? How could I go back to what I had before even though I tried all kinds of forms of factory resetting the phone
I really beg for your guys' help
Thank You
EDIT: Found this http://forum.xda-developers.com/nexus-6p/help/recovering-usa-band-to-auto-mode-4636-t3271347 gonna try that right now
EDIT2: That modified ROM helped! But I still don't get 4G
Have you tried removing the SIM card, rebooting the phone, then going into the Phone info menu and setting the preferred network type to LTE/GSM auto (PRL)? Maybe afterr another reboot with the SIM inserted the phone will connect.
Also check the APN settings -- they might have changed.
https://apn-russia.gishan.net/settings/33_5_megafon_apn_settings_for_htc_evo_4g_lte.php
stevemw said:
Have you tried removing the SIM card, rebooting the phone, then going into the Phone info menu and setting the preferred network type to LTE/GSM auto (PRL)? Maybe afterr another reboot with the SIM inserted the phone will connect.
Also check the APN settings -- they might have changed.
Click to expand...
Click to collapse
I think I've tried it, I'll give it another try after seeing if flashing this one ROM where you can select Auto Band in 4636 menu that I linked in the edit would work.
APN settings were fine.
Thanks
EDIT: That ROM helped! But I still don't get 4G
Looks like the post you linked should do the trick. Good luck!
code in Huawei *#*#4636#*#*
I have the same problem. My Huawei is Portuguese and the sms work and the internet to but no signal radio. Wen I dial a number tells me no radio found. Can somebody help me? Thanks
This is a Galaxy S5 on the Sprint Network with Lineage OS version from a few weeks ago.
Last week this was working fine and then since Sunday cell service stopped working completely. The only change I did was updating TWRP, I did not update LineageOS, but I can't imagine TWRP would have affected it. I ended up reverting back to the stock ROM thinking I would have to call Srpint customer service, but then it started working under the stock ROM. Reflashed TWRP and Lineage OS and no service. Tried older and newest versions of TWRP and Lineage OS but nothing works except stock ROM (yuck).
The cellular connection says "no service" with completely empty bars. About every 5 seconds it will flash like it is connected, with most bars and the little R for roaming, then immediately goes back to "no service". I've tried changing preferred networks and looked at settings but can't find anything to fix it.
Any ideas? It's almost like the network is rejecting it but I don't see why it would matter if it is a custom ROM.
EDIT: oh yeah and on start up it says "Activating cellular service... This may take up to 5 minutes" or and then after a while says "Couldn't Activate" and that it may be fixed by restarting the phone (which of course doesn't fix it). Also I'm not entirely sure if it is related to roaming or not.
EDIT2: I'm wondering/betting this has something to do with the ICCID number. I noticed with Lineage OS installed it says "DUMMY_NV_ICC_SERIAL" but with the stock ROM it is a long string of digits. Now maybe I can change the ICCID on Lineage OS? Or maybe Lineage OS isn't reading my sim card properly (from googling what ICCID is)?
Did you ever figure this out? I have the same issue. Until the most recent build, I was forcing the phone down to 3G because of the SMS bug, but now that I have it set to use LTE, it won't connect (even to fallback, I don't care about getting LTE, I would just like not to miss calls/texts because I do have voice roaming).
Firstly, check the baseband, if it's the newest. Sometimes this causes the problem. If this doesn't help, then only the ROM is the actual problem.
bussemac said:
Did you ever figure this out? I have the same issue. Until the most recent build, I was forcing the phone down to 3G because of the SMS bug, but now that I have it set to use LTE, it won't connect (even to fallback, I don't care about getting LTE, I would just like not to miss calls/texts because I do have voice roaming).
Click to expand...
Click to collapse
I did not figure it out. I went back to my home area, re-installed LineageOS and then it activated on the Sprint network fine. But I suspect if I was in roaming again it would still not work if I did a factory reset or an update while in roaming. So I guess the only "solution" I've found is to be on a home network, let the phone activate, and then you can go back to roaming area. Not much of a solution if you are not near a home area.
I use https://forum.xda-developers.com/xposed/modules/app-roaming-control-v1-0-t3267154 to re-enable national roaming.
Also had some problems getting the modul work. I had to enable modul by toggle flight mod. Also i still have to enable roaming befor i switch from wifi to data connection then i can turn roaming (international) in system off and national roaming still works.
Maybe you have to do so :fingers-crossed:
I had my phone running PureNexus(7.1.2?) on Cricket with no issues, a couple days ago at the same time as switching to Sprint, I decided to update my ROM, went with a 8.1 ROM. When I did this, I had issues getting any sort of signal to work right, so I figured it was something with the custom ROM, grabbed the latest stock and reflashed. I then went through the same thing many others have here, but when I go back to the custom 8.1 ROM, I do not get LTE to connect, just 3G. Even erasing modemst1 and 2, it does not connect to LTE. So, ignoring that, I still backed up the EFS and restored it over the stock ROM. Doing this, I'm able to get 3G and voice to connect, but when I go into the phone menu(*#*#4636*#*#) and turn the radio off then back on, eventually it will connect to LTE. But in doing so, it puts the phone in 'emergency calls only' for voice. Currently it shows
Voice Service: In Service
Data Service: Connected
Voice Network Type: 1xRTT
Data Network Type: eHRPD
And if I go into the menu and toggle the Mobile Radio Power, it will change to:
Voice Service: Emergency Calls Only
Data Service: Connected
Voice Network Type: Unknown
Data Network Type: LTE
Once it goes to LTE, it does not go back to voice/3G even on reboot unless I erase the modem or restore an EFS backup. I've been able to replicate this 3 times now in 3 different 7.1.2 ROMs, anything 8.1 I've only been able to get 3G working. In 7.1.2 I am able to run the update device configuration, and update PRL. Both work successfully, but it still does the same thing. At this point, I know that the hardware works, as both do work fine, just not at the same time. LTE and voice does still work fine on Cricket, I put in another active SIM and both work as expected. Anyone know what else I could try?
Sorry if this is rambling, I actually had a much more detailed post then somehow refreshed my screen and lost it all
I'm essentially having the same issue with my Moto g5 plus on Verizon. Read my post!
I am having a similar issue on Sprint as well. For a little while I couldn't get 8.1 ROMs to connect to data at all, after serial flashing a bunch of them I ended up with data again accross all ROMs but now I only have LTE, it does not switch to 3 g ever, only 1x when making phone calls. I wish I knew which ROMs I flashed to get to this point but I can't remember anymore. Good luck.
emraith said:
I had my phone running PureNexus(7.1.2?) on Cricket with no issues, a couple days ago at the same time as switching to Sprint, I decided to update my ROM, went with a 8.1 ROM. When I did this, I had issues getting any sort of signal to work right, so I figured it was something with the custom ROM, grabbed the latest stock and reflashed. I then went through the same thing many others have here, but when I go back to the custom 8.1 ROM, I do not get LTE to connect, just 3G. Even erasing modemst1 and 2, it does not connect to LTE. So, ignoring that, I still backed up the EFS and restored it over the stock ROM. Doing this, I'm able to get 3G and voice to connect, but when I go into the phone menu(*#*#4636*#*#) and turn the radio off then back on, eventually it will connect to LTE. But in doing so, it puts the phone in 'emergency calls only' for voice. Currently it shows
Voice Service: In Service
Data Service: Connected
Voice Network Type: 1xRTT
Data Network Type: eHRPD
And if I go into the menu and toggle the Mobile Radio Power, it will change to:
Voice Service: Emergency Calls Only
Data Service: Connected
Voice Network Type: Unknown
Data Network Type: LTE
Once it goes to LTE, it does not go back to voice/3G even on reboot unless I erase the modem or restore an EFS backup. I've been able to replicate this 3 times now in 3 different 7.1.2 ROMs, anything 8.1 I've only been able to get 3G working. In 7.1.2 I am able to run the update device configuration, and update PRL. Both work successfully, but it still does the same thing. At this point, I know that the hardware works, as both do work fine, just not at the same time. LTE and voice does still work fine on Cricket, I put in another active SIM and both work as expected. Anyone know what else I could try?
Sorry if this is rambling, I actually had a much more detailed post then somehow refreshed my screen and lost it all
Click to expand...
Click to collapse
Your problem is really simular to mine, but I have an axon 7 and the service is Total wireless (verizon). I can get data and calls are emergency only. Its very odd, the other odd thing is I have 2 axon 7 (got a replacement). The one with the problem has everything working and the kicker is I restored this replacement to match the working one. So why It cant connect is really odd.
madhits45 said:
Your problem is really simular to mine, but I have an axon 7 and the service is Total wireless (verizon). I can get data and calls are emergency only. Its very odd, the other odd thing is I have 2 axon 7 (got a replacement). The one with the problem has everything working and the kicker is I restored this replacement to match the working one. So why It cant connect is really odd.
Click to expand...
Click to collapse
How is this similar? You are trying to use an Axon 7 on Verizon's network... How do you expect that to work? The Axon 7 doesn't have a CDMA radio.
acejavelin said:
How is this similar? You are trying to use an Axon 7 on Verizon's network... How do you expect that to work? The Axon 7 doesn't have a CDMA radio.
Click to expand...
Click to collapse
Yes it does have CDMA. Its just not officially supported by verizon. I found out that my modem partition I believe EFS was messed up and that contributed to the emergency calls only issue. I never got it fixed even through multiple re-flashes so I simply sent it back to ZTE.
madhits45 said:
Yes it does have CDMA. Its just not officially supported by verizon. I found out that my modem partition I believe EFS was messed up and that contributed to the emergency calls only issue. I never got it fixed even through multiple re-flashes so I simply sent it back to ZTE.
Click to expand...
Click to collapse
I stand corrected... I assume you have seen this, especially post #3?
acejavelin said:
I stand corrected... I assume you have seen this, especially post #3?
Click to expand...
Click to collapse
I have read that thanks for pointing it out. I actually could offer a correction to what he says because you can get VoLTE on the axon7 with verizon but its tricky. I had to activate the phone on an HD voice 1.0 phone iphone 6 or newer and prob other models. I have total wireless (verizon Mvno) once I do that I can swap the sim and get VoLTE on the axon7 through turning it on in test mode. Ive had volte working for a while now. I believe verizon just thinks Im on the iphone6. and I dont know what would happen if I took the iphone 6 and tried to use it on another verizon account as my service is prob tied to its IMEI.