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Hi, I have non rooted ATT S4 and typed the following *#*#4636#*#* on my keypad. I do not recalling changing anything at the time. However now the phone no longer picks up LTE. The menu is always saying WCDMA preferred and I cannot change this. I did a Google search and apparently a factory reset is supposed to remedy, tried that to no avail.
When I put the same ATT sim card in my T Mobile Note 3 I do get LTE. signal, so I dont believe its relating to plan issues. I obviously must have done something when I went into that menu as the S4 was working on LTE fine prior to entering *#*#4636#*#*
Any help would be appreciated.
EDIT: I actually removed my SIM card and entered the above code and with no SIM inside the S4, it reads LTE/GSM auto prl. Soon as I put my sim is sticks to WCDMA preferred. Not sure if this helps or not.
Just an update. method of elimination performed.
I just put in my wife's sim in the so called " problematic" S4 and it registers on LTE ATT straightaway. Thus issue must be APN related. on MY sim. Kicker being why is that I get LTE on my T mobile note 3 on ATT then but when I put the same SIM in the S4 I get HSP?
Limeybastard said:
Just an update. method of elimination performed.
I just put in my wife's sim in the so called " problematic" S4 and it registers on LTE ATT straightaway. Thus issue must be APN related. on MY sim. Kicker being why is that I get LTE on my T mobile note 3 on ATT then but when I put the same SIM in the S4 I get HSP?
Click to expand...
Click to collapse
So did you resolve the problem. The problem is either your sim is bugged or the phone needs to be repaired.
DrXTC said:
So did you resolve the problem. The problem is either your sim is bugged or the phone needs to be repaired.
Click to expand...
Click to collapse
Not sure. I wrote my observations above earlier. Put wife's sim in S4 and it picks up LTE on ATT no worries. Put my ATT sim inside the S4 and it goes to 4G HSPCA.
Like I mentioned, I cannot understand the logic behind this as when I put my SIM in my Note 3 is shows LTE but when in the S4 it dont.
Limeybastard said:
Not sure. I wrote my observations above earlier. Put wife's sim in S4 and it picks up LTE on ATT no worries. Put my ATT sim inside the S4 and it goes to 4G HSPCA.
Like I mentioned, I cannot understand the logic behind this as when I put my SIM in my Note 3 is shows LTE but when in the S4 it dont.
Click to expand...
Click to collapse
Thanks. The phone is bugged or if you rooted you might have encountered a error.
Not rooted just typed in those commands.
Sent from my SM-N900T using Tapatalk 4
what are you apn settings with your sim in vs your wifes.. it may be changing them based on the sim..
also what is the model number in /system/build.prop
I noticed when modifying mine with nexus to get google wallet on .. that the lte menu went away and only get 4g.. changing it back fixed it.. so something also looks at that on certain f/w versions.
My buddy just gave me his T-Mobile Note 3 so I started using it. I was using the S4 before and I was always getting LTE no matter where I was. Now that I am using the note 3, I keep getting the edge network everytime, and sometimes I will get 4g but that is at very rare places. Is there a setting to change the band on the phone to make it work on att?
Focusal said:
My buddy just gave me his T-Mobile Note 3 so I started using it. I was using the S4 before and I was always getting LTE no matter where I was. Now that I am using the note 3, I keep getting the edge network everytime, and sometimes I will get 4g but that is at very rare places. Is there a setting to change the band on the phone to make it work on att?
Click to expand...
Click to collapse
With the same SIM card? Or with another SIM card/another mobile network?
Anyway, you can try to change the band with this menu: *#2263# (*#BAND#)
You can find other Samsung secret codes with the 'Secret Code Explorer' menu (in the Shortcut Master app).
vndnguyen said:
With the same SIM card? Or with another SIM card/another mobile network?
I tried numerous sim cards. Anyways I did the band thing and changed it to all. seems I get the 4g now, but it eventually goes back to edge, so the only fix is to restart the phone to get it back to 4g. any fix to this?
Click to expand...
Click to collapse
1- Did you try these sim cards with another phones?
2- Try to manually select LTE instead of Auto?
took my sim out of my note 3 and lte is beautiful,put sim in nexus 6p cannot get lte,confirmed sim is working with lte just put it back in note 3, and lte is fine,,is there a special APN you guys are using,,help please,,steve
mongonexus said:
took my sim out of my note 3 and lte is beautiful,put sim in nexus 6p cannot get lte,confirmed sim is working with lte just put it back in note 3, and lte is fine,,is there a special APN you guys are using,,help please,,steve
Click to expand...
Click to collapse
Have you attempted restoring apn setting to defaults and rebooting?
Pecata said:
Have you attempted restoring apn setting to defaults and rebooting?
Click to expand...
Click to collapse
gonna try that now
Pecata said:
Have you attempted restoring apn setting to defaults and rebooting?
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Click to collapse
which apn are you using ???
mongonexus said:
which apn are you using ???
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Click to collapse
I am on T-mobile, but I had the same issue with my Nexus 6...If I go to the apn settings, click on the menu button at the top right and click reset to default-wait for the confirmation that settings have been restored and reboot the device. Also under Preferred network type do you have LTE selected?
Pecata said:
I am on T-mobile, but I had the same issue with my Nexus 6...If I go to the apn settings, click on the menu button at the top right and click reset to default-wait for the confirmation that settings have been restored and reboot the device. Also under Preferred network type do you have LTE selected?
Click to expand...
Click to collapse
yes lte in settings is selected,,but when you do *#*#4636#*#* it wont lock on to the lte setting in scroll down list
mongonexus said:
yes lte in settings is selected,,but when you do *#*#4636#*#* it wont lock on to the lte setting in scroll down list
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Click to collapse
I wouldn't mess with those settings...what does the signal icon say? H or LTE?
When you go to Settings->About Phone->Status-> Sim Status what does it say under cellular network type?
it says HSPA at this time
it says H in the status bar
Yeah, that's 4G...did you change any settings in the *#*#4636#*#* menu?
I have no idea why the lte won't work...this makes no sense...
Pecata said:
Yeah, that's 4G...did you change any settings in the *#*#4636#*#* menu?
I have no idea why the lte won't work...this makes no sense...
Click to expand...
Click to collapse
no it was on gsm auto and wont allow me to put on lte,gsm
mongonexus said:
no it was on gsm auto and wont allow me to put on lte,gsm
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Click to collapse
This is very strange....have you tried under Preferred network, switching to 3G and then going back to LTE?
Other than that I am out of ideas...sorry I hope someone else can help
Pecata said:
This is very strange....have you tried under Preferred network, switching to 3G and then going back to LTE?
Other than that I am out of ideas...sorry I hope someone else can help
Click to expand...
Click to collapse
tried that now same thing H, and no lte
had my kid take the sim out of his 6 plus on att,,boom lte fired rite up,maybe a 2 yr old sim needs replacing ??
I'm seeing the same issue. After boot, the phone is stuck on HSPA. Toggle airplane mode, then the 6p connects to LTE.
I know T-Mo folks have similar issues. For T-Mo, I read about toggling the "Advanced LTE" setting and rebooting resolves the issue.
I would like to find a better solution than toggle airplane mode with ATT.
I called att. I had the same issue last year with my moto x pure. They had refresh their system and reenter the imei number and change my device. I rebooted and it works now. You can chat online if you want. The apn settings should auto plug in when you boot the phone with whatever carriers sim card.
Thanks for this thread. I was noticing it stuck on H all day. Brand new sim, just got it yesterday for this phone from AT&T...
Just glad to know about airplane mode toggle trick, it works great.
Tried resetting APN's, but didn't help.
I'll call AT&T soon and see if they can fix it permanently on their side ?
Sent from my Nexus 6P using Tapatalk
For those on AT&T, who *never* sees LTE, even after airplane mode toggle, will need to contact the carrier and have them provision the line for LTE. The easiest way to do this is to put the SIM into an AT&T-branded LTE phone. This way, the system will "see" that you're using an LTE phone and by the time you call, the agent can simply make the needed provision. You can put the SIM back into the 6p thereafter and LTE will stick, even if AT&T's system does not recognize the IMEI.
*However*, if the airplane mode toggle works to connect to LTE or you have ever seen LTE on your 6p in the past, this is then likely NOT a carrier problem. See this thread. What @slaydog and many others are experiencing is caused by a ROM/radio bug. It is intermittent. There is currently no fix for it and a bug report has been filed with Google. We are hoping that the next patch release fixes the problem.
I ordered my nano SIM from AT&T before I received my 6P. The rep had to look up the SKU of the SIM that works for the 6P so that the correct one was shipped. I had LTE service the moment the phone powered up. I would have AT&T send you a new replacement for the two year old SIM, and make sure you let them kmow that it is for a Huawei Nexus 6P.
stevemw said:
I ordered my nano SIM from AT&T before I received my 6P. The rep had to look up the SKU of the SIM that works for the 6P so that the correct one was shipped. I had LTE service the moment the phone powered up. I would have AT&T send you a new replacement for the two year old SIM, and make sure you let them kmow that it is for a Huawei Nexus 6P.
Click to expand...
Click to collapse
I will try that.
In the meantime, I have set up Tasker to toggle airplane mode at boot. It works fine for now...
Sent from my Nexus 6P using Tapatalk
I just "upgraded" to Android 7.0 today. My carrier is Verizon.
I'm not sure what's up with it or how to troubleshoot it, however I need my phone back up as soon as possible.
Any help would be greatly appreciated! This is kind of a big deal for me.
Under Dual Sim Settings->Network mode it says the following:
Card 1: LTE/WCDMA/GSM
Card 2: missing or error
However, it's not connected to Verizon's network at all.
I've tried popping the sim in and out, along with restarting the device.
edit:
A SOLUTION HAS BEEN FOUND
aijorgenson said:
I managed to get a hold of a friend's active AT&T phone. Put his sim into slot 1, rebooted and put the Verizon sim back into slot 1 once the AT&T sim was recognized.
This resolved my issue. I just did it so I don't know if it's a permanent fix or not.
Click to expand...
Click to collapse
I had to remove both my SIMs, put my GSM (T-Mobile) SIM in slot 1...wait for the phone to recognize the SIM...then reboot a few times...then turn it off...put my Verizon and T-Mobile SIMs in slot 1 and 2 respectively...and then reboot. It's worked fine ever since. An old, inactive GSM SIM or a friend's will work fine for this procedure.
But yeah lots of people are having this issue with Verizon SIMs after the update. Really annoying...but it does seem fixable in most cases.
flyer_andy said:
I had to remove both my SIMs, put my GSM (T-Mobile) SIM in slot 1...wait for the phone to recognize the SIM...then reboot a few times...then turn it off...put my Verizon and T-Mobile SIMs in slot 1 and 2 respectively...and then reboot. It's worked fine ever since. An old, inactive GSM SIM or a friend's will work fine for this procedure.
But yeah lots of people are having this issue with Verizon SIMs after the update. Really annoying...but it does seem fixable in most cases.
Click to expand...
Click to collapse
Thanks, I have a friend with a GSM sim. I'll try this out tomorrow night.
@flyer_andy has helped me too with this problem. I had to buy a straight talk sim from Walmart for $50 to get this thing working. I had to do it because i updated on the way to work. Once got to work i had no phone :crying: lol
I had to use my sisters sim card. I turned off the phone, put hers in, once it saw T-Mobile, I took the SIM out while the phone was on, swapped and was good to go. Boots just fine with Verizon data.
I managed to get a hold of a friend's active AT&T phone. Put his sim into slot 1, rebooted and put the Verizon sim back into slot 1 once the AT&T sim was recognized.
This resolved my issue. I just did it so I don't know if it's a permanent fix or not.
Just had a similar issue, running dual SIM. My T Mobile SIM which I use for the mobile data lost its data connection and would not reconnect, showed full Signal but no data. I eventually had to swap the 1 and 2 positions and now it is working.
tolymatev said:
I had to buy a straight talk sim from Walmart for $50 to get this thing working.
Click to expand...
Click to collapse
I hope a phone came with it for that price.
I picked up a SimpleMobile (T-Mobile MVNO) SIM at Family Dollar for $1.
I also had the unexplained automatic reboots after installing B15 last night. It also wasn't recognizing the SIM. It wasn't even recognizing the GSM SIM. I did a couple factory resets and reboots with the GSM installed. I t looks like it needed the radio reset like back in the old A20 days. It eventually recognized the GSM SIM. I then switched out the PagePlus SIM, and added the Tracfone APN.
Everything I looked at seems to be working. Speedtest is showing 5.46 mbps down, but only 100 kpbs up. I think that's about normal for me.
pauldow said:
Everything I looked at seems to be working.
Click to expand...
Click to collapse
I wrote too soon. I'm back to no service. I'm not sure when service disappeared
I tried putting in the GSM SIM and rebooting a few times.
I put my PagePlus SIM in my old Galaxy S4 to try to have that recognized on the network.
I powered off the Axon and replaced the SIM with the PagePlus one.
It starts up and shows No SIM card, then No Service, then Verizon Wireless for a few seconds, then back to No Service.
It looks like the problem I had when going to A29, but the solution to fix it then isn't working.
Edit:
I did a factory reset with the PagePlus SIM inserted. It came up with phone service. I had to add the TRACFONE.VZWENTP APN.
It then showed an LTE connection. I shut off Wifi, and it started to load a web page. It then stopped loading, and went back to No Service at the top.
pauldow said:
I wrote too soon. I'm back to no service. I'm not sure when service disappeared
I tried putting in the GSM SIM and rebooting a few times.
I put my PagePlus SIM in my old Galaxy S4 to try to have that recognized on the network.
I powered off the Axon and replaced the SIM with the PagePlus one.
It starts up and shows No SIM card, then No Service, then Verizon Wireless for a few seconds, then back to No Service.
It looks like the problem I had when going to A29, but the solution to fix it then isn't working.
Click to expand...
Click to collapse
Do you have a Verizon phone that you can stick your PP SIM into, to verify that the SIM correctly works?
i'm having similar data connectivity issues with my Axon 7 and at&t after the Nougat update. Axon 7 is rooted with B15, using 1-sim and a microSD, here's my issue description
-
day 1-3: 4G/LTE connection working, no data issues
day 3: 4G/LTE connection working, can connect to web pages, but could not connect to Google Play, Youtube,Google News and none of my 3 Exchange email accounts. Switch to Wifi and no issues connecting to any Google Play, Youtube,Google News and none of my 3 Exchange email accounts
day 4: Same issues as day 3, factory reset manually reinstall all apps, email accounts, etc. after a couple of reboots, could not connect to Google Play, Youtube,Google News and none of my 3 Exchange email accounts. tried Lineage OS and 4 hours after fully setup, problem is back. with Lineage OS, signal bars showed no signal with each connection attempt and after 30 seconds, connection timed out and signal bars would return.
Troubleshooting:
- swapped sims from two working devices into the Axon 7 and same no-connection/time-out connectivity issues with Google Play, Youtube,Google News and my 3 Exchange email accounts
- all 3 sims tested work in every device except the Axon 7
- at&t re-provisioned my account and confirmed there are not issues on their end.
i'm stumped. any suggestions would be appreciated. otherwise, i'm in my 14-day window and my have to return the device. thanks.
When the verizon sim is installed, is global mode an option under settings, network settings (not the 4636 menu)? If so, try that.
xtermmin said:
Do you have a Verizon phone that you can stick your PP SIM into, to verify that the SIM correctly works?
Click to expand...
Click to collapse
I should have been clearer. The PP SIM works fine with my old Galaxy S4. I miss a lot of incoming calls with it, but that isn't configuration related. It's always done that.
Thank you for the reply.
Can't recognize ATT sim either..
Pull the sim and factory reset, reset network settings also. Then put the sim in and keep factory resetting until it's recognized. Took 3 tries on my phone and 5 on my friends.
Sent from my ZTE A2017U using XDA-Developers Legacy app
Are you all able to use HD Voice & video calling with the native dialer on the Verizon network? Some phones have an option under settings called 'Advanced Calling'. This is where you can turn on HD Voice & Video Calling for Verizon.
Hi, i recently buy an used nexus 4 in ebay, simply for nostalgia, so, i´m in Mexico, the nexus 4 that i had 3 year ago, was unlocked, so, i supose this too, when arrive, i connect to wifi immediately without any sim inside, the cellphone request for one upgrade, i accept, after that, i put my sim from Virgin Mobile and the nexus only showed " no simcard inside, only emergency calls.... y try with other carrier, weex mexico (virgin and weex work in Movistar, they are OMV) and the same all.... finally y put a sim from at&t mexico, nothing... with the sim (att) inside, i downgrade to android 4.4.4, when woke up, the nexus 4 with the same result, No simcard, so, the cellphone wasn´t detecting any simcard, after that, it request for the next upgrade, lollipop 5.0.1 that i accept, but in this chance, the nexus with the simcard from ATT showing signal¡¡¡¡¡ the cellphone was working at 100%, i made a couple calls, without problems.
But, i try with the other 2 simcards, and it doesnt detecting, simply show again No simcard, emergency only, so i switch back my Att sim and this is detecting without problems....
I install a rom named Pure Nexus, waiting for work, but the same, only with ATT simcard work, so i downgrade again to 4.4.4 but in this chance with other simcard differnt from AT&T, Virgin mobile.... but nothing, nexus 4 is not detecting any other simcard than at&t¡¡¡¡¡¡
What can i try? could be a nexus 4 locked only for one carrier or what? in google dont appear in blacklist, the imei is good nor corrupted... could be the sim holding?
try going back to stock using the nexus 4 toolkit,then root, and try one of the hybrid models LTE enabler or download the 107-3, if that doesnt work also, then it might be defective.
Zestar said:
try going back to stock using the nexus 4 toolkit,then root, and try one of the hybrid models LTE enabler or download the 107-3, if that doesnt work also, then it might be defective.
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Click to collapse
excuse me, what is "download the 107-3" ? its a rom? i download 4.4.4 from google,
nismo87 said:
excuse me, what is "download the 107-3" ? its a rom? i download 4.4.4 from google,
Click to expand...
Click to collapse
use this to go back to stock
http://www.wugfresh.com/nrt/
you will get android 5.1.1, you can also install custom recovery and root using it.
then if the sims doesnt work, change the modem using the LTE Enabler you can get it from the Play Store.
it has the modem until version 104-33, but im using another one the 107-33 that i got from
https://drive.google.com/open?id=0B77BTW0zStYCZmpPR0xTaWE5OUU
104 33 and 107 33 are hybrid modems, but you can also install stock modems,
the modem is the one that allows you to make calls and use the data channel in your phone
hope that makes sense, let me know how it goes. regards.
Zestar said:
use this to go back to stock
http://www.wugfresh.com/nrt/
you will get android 5.1.1, you can also install custom recovery and root using it.
then if the sims doesnt work, change the modem using the LTE Enabler you can get it from the Play Store.
it has the modem until version 104-33, but im using another one the 107-33 that i got from
https://drive.google.com/open?id=0B77BTW0zStYCZmpPR0xTaWE5OUU
104 33 and 107 33 are hybrid modems, but you can also install stock modems,
the modem is the one that allows you to make calls and use the data channel in your phone
hope that makes sense, let me know how it goes. regards.
Click to expand...
Click to collapse
well, i flash EnableNexus4LTE.zip and LTEhybrid33-84 without good news, i have the same issue, only at&t mexico sim is detected and the others no, well, i´m now with 4G LTE but only working in at&t
i don´t know what other things trying in the nexus, seem like only prefer at&t sim and no one else.
Adding information, i have sims from cricket USA and t-mobile USA, i know is not supported in México, but it will be for try to get something like: Sim not activated... or invalid sim, but other different from my nightmare: NO sim, please insert....
SOLVE:
I´ll auto answer... after a lot off attempts, i found the problem is the sim reader, like i posted before, only working with at&t Mexico sim, so, I watch the thickness of this was little bit smaller than others, my "strategy" was try to imitate the fact that at&t sim is making contact gently on pins, i take a 3in1 simcard, and i put the nano sim in micro sim adapter (included in the sim) but not in all (i don know exactly the words in english), so by this waya the nano sim standing on a little bit from microsim adapter.
when i insert the sim by this way an my nexus, and turn on, the cellphone recognize inmediatly the sim, so i found the key of this problem, like i said, the problem here is the sim reader, because, a normal and good sim reader not need this tricks to get signal.......
nismo87 said:
SOLVE:
I´ll auto answer... after a lot off attempts, i found the problem is the sim reader, like i posted before, only working with at&t Mexico sim, so, I watch the thickness of this was little bit smaller than others, my "strategy" was try to imitate the fact that at&t sim is making contact gently on pins, i take a 3in1 simcard, and i put the nano sim in micro sim adapter (included in the sim) but not in all (i don know exactly the words in english), so by this waya the nano sim standing on a little bit from microsim adapter.
when i insert the sim by this way an my nexus, and turn on, the cellphone recognize inmediatly the sim, so i found the key of this problem, like i said, the problem here is the sim reader, because, a normal and good sim reader not need this tricks to get signal.......
Click to expand...
Click to collapse
I glad its working now, you can stay on 5.1.1 with the hybrid modem if you got the 4G signal, or return to 4.4.4 if you want. regards.
Zestar said:
I glad its working now, you can stay on 5.1.1 with the hybrid modem if you got the 4G signal, or return to 4.4.4 if you want. regards.
Click to expand...
Click to collapse
yeah¡¡¡, i´ll install a hybrid modem, but the 4G is simulated or real with this?
nismo87 said:
yeah¡¡¡, i´ll install a hybrid modem, but the 4G is simulated or real with this?
Click to expand...
Click to collapse
i think is real, speedtest results are much better using 4G. I got around 40mbps.
Zestar said:
i think is real, speedtest results are much better using 4G. I got around 40mbps.
Click to expand...
Click to collapse
i just sintall LTEhybrid33-84 and EnableNexus4LTE with TWRP custome recovery, but apparently without any 4G signal, in the menu mobile networks only i can choose 2G & 3G.... but the baseband does change.....
so, i use the trick hidden menu with *#*#4636#*#* and i choose LTE only, only with this my nexus 4 has 4G signal¡¡¡¡¡¡ but, if i come back to mobile networks, again only i can see 2g and 3g and the little 4G on top disappear.... so i need to come back again to hidden menu....
conclusion, mobile networks menu it will prohibited for me :silly:
nismo87 said:
i just sintall LTEhybrid33-84 and EnableNexus4LTE with TWRP custome recovery, but apparently without any 4G signal, in the menu mobile networks only i can choose 2G & 3G.... but the baseband does change.....
so, i use the trick hidden menu with *#*#4636#*#* and i choose LTE only, only with this my nexus 4 has 4G signal¡¡¡¡¡¡ but, if i come back to mobile networks, again only i can see 2g and 3g and the little 4G on top disappear.... so i need to come back again to hidden menu....
conclusion, mobile networks menu it will prohibited for me :silly:
Click to expand...
Click to collapse
you should be able to select "LTE/GSM Auto" that way the phone will switch to GSM when needed.
and the option is only visible under *#*#4636#*#* menu, also, we have to switch to LTE/GSM auto, if the phone is restarted. there is a way to make it persistent, but I haven't tried. i'm fine with it since i don't restart the phone too often.
hope this helps, regards.