4G doesn't work correctly - RAZR HD Q&A, Help & Troubleshooting

Hello, I recently traveled and my phones LTE won't come on when its on (CDMA/LTE) auto. It only gets 3G on this setting.. Its what I'm normally on. but 4G works when I change it to LTE only but doing that doesn't get me any calls. How can I get 4G working again with LTE/CDMA auto? Thanks in advance!

npz said:
Hello, I recently traveled and my phones LTE won't come on when its on (CDMA/LTE) auto. It only gets 3G on this setting.. Its what I'm normally on. but 4G works when I change it to LTE only but doing that doesn't get me any calls. How can I get 4G working again with LTE/CDMA auto? Thanks in advance!
Click to expand...
Click to collapse
Have you tried opening the dial pad and entered *#*#4636#*#* and checked your radio settings there? Mine is set to WCDMA preferred, yours should be set to LTE/CDMA/EvDo/GSM/WCDMA.

Ustetind said:
Have you tried opening the dial pad and entered *#*#4636#*#* and checked your radio settings there? Mine is set to WCDMA preferred, yours should be set to LTE/CDMA/EvDo/GSM/WCDMA.
Click to expand...
Click to collapse
(I'm on a different account)
Yes. I have changed that many times. Those settings just keep it on 3G.... (LTE/CDMA/GSM) when I do LTE only.... The 4G works but can't make calls

faille13 said:
(I'm on a different account)
Yes. I have changed that many times. Those settings just keep it on 3G.... (LTE/CDMA/GSM) when I do LTE only.... The 4G works but can't make calls
Click to expand...
Click to collapse
fyi, multiple accounts is a violation of the forum rules.
14. Create only ONE User Account
You are allowed ONE User Account at XDA-Developers. If you create additional accounts, Moderators will disable them and your original account may also be disabled or infracted.

bweN diorD said:
fyi, multiple accounts is a violation of the forum rules.
14. Create only ONE User Account
You are allowed ONE User Account at XDA-Developers. If you create additional accounts, Moderators will disable them and your original account may also be disabled or infracted.
Click to expand...
Click to collapse
No. I meant to say I had someone post it for me. I was on vacation and wasn't near a computer. I didn't feel like explaing that.
I still do need help if someone can help me.

Related

3g/4g network

Hi. I bought One S in USA (T-mobile version, unblocked) and bring to Europe (Slovakia). Call and SMS works well but data network does not work. Could be the reason the phone is 4g and there is only 3g network in Slovakia? Is there any trick how to solve this? Thank you guys.
Are you sure your One S supports 4G (LTE) ? Never heard that yet. There are countries in which the 3G (UMTS/HSPA) standard is defined as 4G. very confusing...
Maybe you have to set up the APN preferences. You need the right settings for your carrier.
Thanks. I tried this, no change. I see Disconnected on "Mobile network" settings.
firefexx said:
Are you sure your One S supports 4G (LTE) ? Never heard that yet. There are countries in which the 3G (UMTS/HSPA) standard is defined as 4G. very confusing...
Maybe you have to set up the APN preferences. You need the right settings for your carrier.
Click to expand...
Click to collapse
_mali_ said:
Thanks. I tried this, no change. I see Disconnected on "Mobile network" settings.
Click to expand...
Click to collapse
I also had this problem, click on names access points and click on your carrier then it should find your carrier and data connection.
Tapatalk/Swiftkey
Could you be more specific please? Thanks.
CarstenDutch said:
I also had this problem, click on names access points and click on your carrier then it should find your carrier and data connection.
Tapatalk/Swiftkey
Click to expand...
Click to collapse
_mali_ said:
Could you be more specific please? Thanks.
Click to expand...
Click to collapse
Options>Mobile Network>Access Points and then click on the carrier you have.
When I did that my data connection started working. Even when It already had the carrier automatically listed.
English is not my native language sorry.
Tapatalk/Swiftkey
I had to create new APN here, nothing was listed automatically .
CarstenDutch said:
Options>Mobile Network>Access Points and then click on the carrier you have.
When I did that my data connection started working. Even when It already had the carrier automatically listed.
English is not my native language sorry.
Tapatalk/Swiftkey
Click to expand...
Click to collapse
Problem solved. APN settings were wrong.

[Q] Simultaneous voice and data no longer working?

I don't know when this started. I can no longer use data while a voice call is in-progress. :-\ I'm currently running CleanRom 6.5, but haven't seen this as an issue in those forums (though it's been a while since I've perused them). I'm on AT&T, by the way.
How can I go about troubleshooting this? I don't even know where to start, and googling "at&t voice and data problems" is unfortunately too vague to turn up anything which actually pertains to my problem.
Is it while you're on LTE? I remember reading a long time ago that LTE on this device (maybe others too) switches off when a voice call is made/received. So if you're set to be on LTE only, that could be the cause perhaps?
Sent from my Evita
timmaaa said:
So if you're set to be on LTE only, that could be the cause perhaps?
Click to expand...
Click to collapse
Is there an option for LTE only, or some way to do that? If so, I was not aware.
But I think your point is valid. It may be a switching problem, trying the other Network mode options might help.
Or there may just be a switching issue on the network side, that you can't do anything about (except report it to your carrier).
There sure is, if you enter the phone information menu through dialer (*#*#4636#*#*).
Sent from my Evita
Sent from my Evita
timmaaa said:
There sure is, if you enter the phone information menu through dialer (*#*#4636#*#*).
Click to expand...
Click to collapse
Ah, I figured it was via the "secret" dialer code.
Seems like a poor option to pick (LTE only), since LTE is not present in so many locations.
Yeah I highly doubt that option would be used very much, but it is a possible cause for this problem.
Sent from my Evita
redpoint73 said:
Is there an option for LTE only, or some way to do that? If so, I was not aware.
But I think your point is valid. It may be a switching problem, trying the other Network mode options might help.
Or there may just be a switching issue on the network side, that you can't do anything about (except report it to your carrier).
Click to expand...
Click to collapse
timmaaa said:
There sure is, if you enter the phone information menu through dialer (*#*#4636#*#*).
Sent from my Evita
Click to expand...
Click to collapse
Thanks for the suggestions. I opened the testing window via my dialer, and the selected option is "GSM/WCDMA/LTE auto". So SEEMS like it should automatically get on something other than LTE. Weird.
Thanks again!
You can select LTE only within apn settings. Bearer type I think it's called or something. It's at the bottom. Doing so causes my network to stop working even in areas where I get LTE.
Sent from my HTC One X using xda app-developers app
Try removing your Sim card, cleaning it with an eraser and resetting it.
99% of the time any data issues are dirty or jostled Sim cards. (Also make sure data is enabled in settings)
Sent from my HTC One X using xda premium
He has data. It just cuts out while on a call. I think we sorted it out anyway.
Sent from my Evita
loneBoat said:
Thanks for the suggestions. I opened the testing window via my dialer, and the selected option is "GSM/WCDMA/LTE auto". So SEEMS like it should automatically get on something other than LTE. Weird.
Click to expand...
Click to collapse
The switching does not always happen correctly, its a known issue on AT&T's network on this and other devices (although I haven't seen your specific problem before, with data and voice not working simultaneously).
You can also specify some network types in Settings>Mobile network>Network mode (without the dialer code) on CleanROM (its locked out on stock the AT&T ROM). Try to force WCDMA and see if that helps.

[Q] 3g issue

Hello there, i just got this phone 3 weeks ago and since i have wifi i didnt test the 3g conection before. i activated a data pack and i just realized that my 3g doesnt come on at all. the screen shows 4g left side of the signal strengh but it doesnt work at all. i got at&t version. i confirmed with my carrier and i did activate data, they even helped me to set up the apn but is still not working. can you helpe me? thanks!
PD: they said they couldnt have done more because they dont support that type of device
Does it say 4G or 4G LTE? The at&t icons are a bit different I'd you're not used to them.
4G = hspa
4G LTE = LTE
So if you're getting the 4G icon you are actually getting 3G hspa speeds.
Sent from my Evita
If another carrier besides AT&T, you will need to find the APN settings for your carrier and manually enter it into Settings>Mobile network settings>Access point names. Select "New APN" and enter the correct settings for your manufacturer.
The 4G icon simply means a network is present, it doesn't mean you are connected to it.
thank you for helping people. whel actualy i wouldnt mind getting 3g network access, the point is that i dont have internet access at all. i called my carrier (Claro - El salvador) and they helped me to set up the apt but is still not working. i was wondering if there is something else i could try to fix this
nevermind, i finally fixed it
Please share the fix so the information is available for anyone who might have the same problem in the future.
Sent from my Evita
Please share the fix so the information is available for anyone who might have the same problem in the future.
Click to expand...
Click to collapse
sorry. well, first i did master reset, once done i set up an apn (carrier provides you with this info), then went to mobile network > network operators > select automatically. once the device found the "CLARO" network i turned data on and got internet service.
Thankyou, these threads live on long after we're finished with them so it's important to have the information readily available for future troubleshooters.
Sent from my Evita
tolonuia said:
sorry. well, first i did master reset, once done i set up an apn (carrier provides you with this info), then went to mobile network > network operators > select automatically. once the device found the "CLARO" network i turned data on and got internet service.
Click to expand...
Click to collapse
I'm guessing you either had not entered the APN info exactly correctly the first time. Or also, after entering the APN you actually have to select it as the "active" one on the list of APNs (making sure it has the colored dot next to it). Maybe it did need a factory reset, but this shouldn't be necessary just to change APN.
Happy you got it figured out.

Question Lack of Verizon Compatibility

I installed a Teyes CC3 unit about a month ago. I have a Verizon unlimited data plan and hotspot so I was using this combination to receive WiFi. It was a bit inconsistent so I called Verizon and negotiated a good monthly rate for an added android tablet line. I picked up a sim card from Verizon and installed it in the sim card slot as shown in the Teyes direction or what appeared to be the sim slot. The unit indicates 2 sim slots but I could only locate one. The exposed sim slot was poorly installed and it was tricky to insert the sim card. I now wonder if the two sim slots are hidden behind the perimeter trim? After installing the sim card it did not show up on the sim card interface. I called Verizon to activate the sim card to confirm it was properly installed and the rep. stated that Verizon does NOT support the Teyes android unit! Question: 1. Could anyone confirm if they have been able to connect to Verizon with a Verizon sim card? 2. Is the sim slot(s) visible on the unit or are they buried behind the plastic trim piece. Thank you
Does it have an external sim reader.The joying I have has to have the card all the way to the right on the reader for the unit to pick up the card.I am also trying to get onto the Verizon network, but no dice. I had to trick the network into thinking my unit is a phone for them to give me service, that's as far as I got. Still playing with the APN settings, but nothing get.
Did you ever find an answer to this? I have a verizon sim card as well. Shows 4G but no actual data
Didn't pursue this further after Verizon stated they don't support the T'eyes unit. I just use Hotspot on my unlimited data Verizon plan. I downloaded a Hotspot Automatic app so with Hotspot activated my phone automatically connects to the T'eyes when I turn on the radio. Works fine.
Slice235 said:
Didn't pursue this further after Verizon stated they don't support the T'eyes unit. I just use Hotspot on my unlimited data Verizon plan. I downloaded a Hotspot Automatic app so with Hotspot activated my phone automatically connects to the T'eyes when I turn on the radio. Works fine.
Click to expand...
Click to collapse
What app did you use?
I don't think these support VZW radio bands.
Just set mine up with VZW, so I was wrong, it must have been my USMobile SIM that didn't support VZW network.
Palumbum said:
What app did you use?
Click to expand...
Click to collapse
App is HotSpot Automatic by Christian Heinisch
See, I still want this to work without my phone hotspot because I'm not the only one who drives the car (and/or has an unlimited plan).
I have a spare Verizon sim for the summer that I'm parking (Visible, my kid is going away to camp) and I notice that when I put it in, I'm getting bars, and a 4G/lte icon. It is connected to the network, but I think the APN just won't populate and it won't let me set it manually.
If it didn't work, there wouldn't be bars I think. I mean, it's obviously registering itself on the network. I've used this sim in plenty of "unsupported" phones before, as long as it supports the right LTE bands, Verizon is basically a GSM carrier now. They will tell you otherwise, but even GSM unlocked phones seem to work in my experience as long as they are activated elsewhere first.
Got it working!
Please share exactly how you’ve accomplished or can you send me a dm? I have been at this for months, spending hours then giving up. Please! That’s awesome
dishe2 said:
Got it working!
Click to expand...
Click to collapse
dishe2 said:
Got it working!
Click to expand...
Click to collapse
By that I mean how did you identify what the APN settings would be? I can’t seem to find something that works.
Did you try to copy the settings from your phone?
Palumbum said:
By that I mean how did you identify what the APN settings would be? I can’t seem to find something that works.
Click to expand...
Click to collapse
j-5 said:
Did you try to copy the settings from your phone?
Click to expand...
Click to collapse
Yeah I’m unable to view them on my iPhone. Google says if carrier allows to check in cellular data settings but mine don’t show there
Palumbum said:
Yeah I’m unable to view them on my iPhone. Google says if carrier allows to check in cellular data settings but mine don’t show there
Click to expand...
Click to collapse
Sorry, you can try googling the apn settings for your carrier, or maybe put it in an Android phone. Or contact your carrier and ask them. There isn't really a network-wide setting that we can give you. I can tell you what I used on my visible line, but it's different then page plus or Verizon post paid or any other Verizon line would be so I'm not sure how useful it would be unless you're also using Visible.
I was able to get internet working on my Teyes CC3 with the following settings, although I will mention that I had to use a 3rd party APN app to unlock the edit function as default it is locked through the android interface.
I spent 2 hours trying to use other recommended APN settings using mms.vtext.com etc and they never worked.
Any options not listed were left as blank, no set, etc.
Verizon Post-paid 4G LTE Unlimited Data Line with a valid Verizon compatible device IMEI
Name
Internet
APN
VZWINTERNET
MCC
311
MNC
480
APN type
default, supl
APN Protocol
IPv4/IPv6
APN Roaming protocol
IPv4
BEARER
HSPA, GPRS, EDGE, eHRPD, UMTS, LTE, HSPAP, IWLAN, HSDPA, NR, HSUPA
sting0387 said:
I was able to get internet working on my Teyes CC3 with the following settings, although I will mention that I had to use a 3rd party APN app to unlock the edit function as default it is locked through the android interface.
I spent 2 hours trying to use other recommended APN settings using mms.vtext.com etc and they never worked.
Any options not listed were left as blank, no set, etc.
Verizon Post-paid 4G LTE Unlimited Data Line with a valid Verizon compatible device IMEI
Name
Internet
APN
VZWINTERNET
MCC
311
MNC
480
APN type
default, supl
APN Protocol
IPv4/IPv6
APN Roaming protocol
IPv4
BEARER
HSPA, GPRS, EDGE, eHRPD, UMTS, LTE, HSPAP, IWLAN, HSDPA, NR, HSUPA
Click to expand...
Click to collapse
Could you tell me the name of the apn app you used. I'm not having much luck finding one that works
sasquatch23 said:
Could you tell me the name of the apn app you used. I'm not having much luck finding one that works
Click to expand...
Click to collapse
I ended up using this one.
Change APN - Apps on Google Play
A fast link to APN Settings
play.google.com
It just opens the default android settings, but it does let me save what I change. The other app in the previous posted video did NOT work for me on my teyes cc3
sting0387 said:
I ended up using this one.
Change APN - Apps on Google Play
A fast link to APN Settings
play.google.com
It just opens the default android settings, but it does let me save what I change. The other app in the previous posted video did NOT work for me on my teyes cc3
Click to expand...
Click to collapse
Hate to dredge up this old chestnut, but did your settings stick? I added the APN, but it disappeared after a time. Any way to get it to stick?
j-5 said:
Hate to dredge up this old chestnut, but did your settings stick? I added the APN, but it disappeared after a time. Any way to get it to stick?
Click to expand...
Click to collapse
Click to expand...
Click to collapse
Happy to help.
The settings did save. I rebooted the cc3 unit, and I had data and continue to have data. I did want to try editing the settings a bit, but I noticed when I opened the app and opened the APN settings, that they were blank, despite that my APN settings were still saved in and working in my unit. So yes the settings did stick, I continue to have data and it works perfectly fine, except if I open the app and try to view the settings they will display as blank as if they are not there, but my unit is working!
sting0387 said:
Happy to help.
The settings did save. I rebooted the cc3 unit, and I had data and continue to have data. I did want to try editing the settings a bit, but I noticed when I opened the app and opened the APN settings, that they were blank, despite that my APN settings were still saved in and working in my unit. So yes the settings did stick, I continue to have data and it works perfectly fine, except if I open the app and try to view the settings they will display as blank as if they are not there, but my unit is working!
Click to expand...
Click to collapse
yeah, mine showed for a bit, then disappeared and I have no data and no amount of adding new ones gets me data again :/

How To Guide Xiaomi and Verizon

The followong devices have been tested on Verizon in the US:
Xiaomi 11T
Xiaomi 12 global version
Xiaomi 12X global
Working:
5G
VoLTE
SMS both sending and recieving
Phone calls both sending and recieveing
IMPORTANT:
MMS on stock Global/China ROM wont work on anything other then Verizon messages
Verizon Messages - Apps on Google Play
Stay connected using Verizon Messages on your Smartphone, tablet, and PC
play.google.com
Please install and set as the default sms app.
However MMS does not work on mobile data only wi-fi. Luckily there is a way!
Getting MMS on data:
So this gets complicated. The xiaomi phones come with the wrong APN settings. So what needs to be done is copying the APN settings of a known good rooted android.
1. Copy the telephony.db off the good verizon phone
2. Install signal spy on the xiaomi https://play.google.com/store/apps/details?id=com.novvia.fispy
3. Once thats done find out what the verizon carriee id is, it should be a next to verizon, ie. Verizon(######)
4. Now pull the xiaomi telephony.db off the device
5. Install https://sqlitebrowser.org/dl/ on a computer
6. Open up the dbs
7. Now delete in the xiaomi dbs all entries ror LTE - Verizon, delete the rows dont NULL it.
8. Almost done
9. Now in both dbs search carrier: Verizon and numeric: ######
10. From the known good db copy everything except the _id column.
11. Past the data into the xiaomi table from row 0
12. Now delete whatever rows were NOT altered.
13. Now both tables should have the same exact verizon settings except for the _id column
14. Push the telephony.db back onto the xiaomi
15. Reboot
16. Open the dialer
17. Enter *#*#4636#*#*
18. Click phone info1
19. Set prefered network type
20. Select the second to last option NR/LTE/TDCDMA....
21. Turn the radio off and on
22. Reboot
23. Open settings and select the VZWINTERNET as the APN (thank you bjs339)
24. ???
25. Profit
The xiaomi can be unrooted and the telephony.db will survive a reboot and a sim removal.
One thing of note, you may need to enable roaming and 5g for the phone to register properly.
RESETTING APN OR RESETING NETWORK WILL ERASE THIS TABLE.
Other apps will now work for text mms, but will be limited to downloads of 30kbs, uploads are unaffected.
Let me know if you need help or have any questions.
I am so sorry for my terrible spelling.
One thing to add, I couldn't send or receive group text messages with iPhone users until I set the APN. I had to actually go into the settings and select VZWINTERNET. This is on the 12x global.
Interesting, did you have to change any of the other settings or did just selecting the APN fix it for you? Also are you able to recieve mms on data only? Thank you.
bjs339 said:
One thing to add, I couldn't send or receive group text messages with iPhone users until I set the APN. I had to actually go into the settings and select VZWINTERNET. This is on the 12x global.
Click to expand...
Click to collapse
Selecting it was all I did. In fact, the other settings are locked down. I think I can get mms on data or wifi if that's what you're asking. And I could message with individual iPhone users prior to making the change, just not groups.
bjs339 said:
Selecting it was all I did. In fact, the other settings are locked down. I think I can get mms on data or wifi if that's what you're asking. And I could message with individual iPhone users prior to making the change, just not groups.
Click to expand...
Click to collapse
Very odd, yeah I messed with it for hours but had to actually root the phone and adjust the APN settings to get it to work. Hmmm, maybe we have different. Ooooh, are you on the 5G plan? I'm the LTE plan.
AllIntoYouthCulture said:
Very odd, yeah I messed with it for hours but had to actually root the phone and adjust the APN settings to get it to work. Hmmm, maybe we have different. Ooooh, are you on the 5G plan? I'm the LTE plan.
Click to expand...
Click to collapse
No, LTE. Hmmm, I dunno.
bjs339 said:
No, LTE. Hmmm, I dunno.
Click to expand...
Click to collapse
Does your sim card number include the +1?
AllIntoYouthCulture said:
Does your sim card number include the +1?
Click to expand...
Click to collapse
No. Does yours?
bjs339 said:
No. Does yours?
Click to expand...
Click to collapse
It does not, somerhing has to be different. Does your phone show as roaming? Also how did you activate your phone?
AllIntoYouthCulture said:
It does not, somerhing has to be different. Does your phone show as roaming? Also how did you activate your phone?
Click to expand...
Click to collapse
No, not roaming. And I didn't activate it, just popped the sim card in. I'm rooted, too, but haven't changed anything that would affect this.
bjs339 said:
No, not roaming. And I didn't activate it, just popped the sim card in. I'm rooted, too, but haven't changed anything that would affect this.
Click to expand...
Click to collapse
What phone were you moving from?
AllIntoYouthCulture said:
What phone were you moving from?
Click to expand...
Click to collapse
Oneplus 7t
Alright, one final question what messaging app are you using?
bjs339 said:
Oneplus 7t
Click to expand...
Click to collapse
Alright, one final question what messaging app are you using?
AllIntoYouthCulture said:
Alright, one final question what messaging app are you using?
Click to expand...
Click to collapse
I use Textra, but also tried the Xiaomi messaging app that came installed on the phone and the Verizon app you linked in the original post. Same results on all.
bjs339 said:
I use Textra, but also tried the Xiaomi messaging app that came installed on the phone and the Verizon app you linked in the original post. Same results on all.
Click to expand...
Click to collapse
Could you sending me the set prefered network type from the *#*#4636#*#* menu please?
AllIntoYouthCulture said:
Could you sending me the set prefered network type from the *#*#4636#*#* menu please?
Click to expand...
Click to collapse
GSM/WCDMA/LTE (PRL)
bjs339 said:
GSM/WCDMA/LTE (PRL)
Click to expand...
Click to collapse
I will try that, my other idea is your phone is magic and does not abid by the rules the rest of us follow.
Strangely it didnt work, there was a split second it did but then no. Maybe it's regional

Categories

Resources