Database Develop

HELP: Shows Signal but cannot use for calling,data,messaging!!!

On my Phone(Andromeda 2.0 Themed), I get the indication of having 3g or any signal at all and the minute I attempt to send a message, make a call, or surf the web it is unable to send that message, unable to make that call, and unable to surf the web. Help on how to fix this?
NOTE: A flash back to stock DID NOT help this problem at all.
EDIT: Changing APN isn't really working(Cant leave the APN type as not set because it auto sets it to internet+mms when I save) and I am starting to get a little frustrated. The reception was really working fine earlier today but now its just weird all over. Please help me out you guys, I really need this working.
EDIT2: Please help guys, I really need my service up for tomorrow.
EDIT3: I am going to AT&T today to swap out my SIM card!!!! I am all Odin'ed out and I will check back if this works.

First try to enable airplane mode. Then turn it off.
If that does not work check your apn settings, under wireless and network, mobile networks, access points

mcord11758 said:
First try to enable airplane mode. Then turn it off.
If that does not work check your apn settings, under wireless and network, mobile networks, access points
Click to expand...
Click to collapse
Doing that now.... The signal bar indicates no connected network.... Trying the second thing you suggested....
For the second option I am under Wireless and Network/Mobile Networks/Access Points.
My options from there are AT&T 310 410(the text under it says wap.cingular)
What do i do from there?????

That reads correct. Unless you are on rogers. Hmmm. I am on the same rom but do not have the same issue. You may want to manually configure you're apn. You may want to search the captivate forum for at&t apn settings. I think you can find them in one of the stickies

I am on att dude. Thanks for the advice. You are positive its the APN though? This happened to me on Phoenix Reloaded too.

steelechamp said:
I am on att dude. Thanks for the advice. You are positive its the APN though? This happened to me on Phoenix Reloaded too.
Click to expand...
Click to collapse
No I am not sure, I have not had your problem but this is where I would start if it did. The apn settings are posted in the captivate development stickies, captivate directory

Okay, so I configured the APN settings to what was found in the thread. Problem is the only thing I cannot configure is the APN type. Hm. Any help?

I am sorry I hope someone who has done this reads this and has a suggestion but I have not had to do this
Read through the sticky, maybe yet has been discussed

Read through it and nothing. It wont let me keep the APN type as not set and it automatically sets it to internet+mms. Any ideas?

Have you posted in the andromeda thread? Maybe the devs may have some ideas

I just did, hopefully they have an answer and if they dont hopefully someone will post an answer here....

I had the same issue back a few weeks ago. I called att, got a replacement phone, and it did it again. Turned out to be a bad SIM.
Sent from my SGH-I897 using XDA App

So do I just need a new sim card???

Well, this sim card JUST started doing this. So are you sure it is just the sim? I mean, if I go to the store to get a new sim, will they ask to see my phone? Will I have to flash back to stock before I get a new SIm?

steelechamp said:
Well, this sim card JUST started doing this. So are you sure it is just the sim? I mean, if I go to the store to get a new sim, will they ask to see my phone? Will I have to flash back to stock before I get a new SIm?
Click to expand...
Click to collapse
Do you think the person in the store will have any idea what a custom rom is? Chances are they will change it no questions asked

Okay, do you think I should just play it safe and reset to stock though?

There is no harm in doing so.

mcord11758 said:
There is no harm in doing so.
Click to expand...
Click to collapse
Well, thanks, I will head first thing in the morning.

I got the same problem at certain locations, such as my university. Haven't been able to get much help... Gonna try getting the SIM changed as it's a pretty old SIM. Weird thing is that it works fine on my Sony Ericsson G705/W715.
So almost two months of owning my Captivate that I got from Rogers (BNIB from Kijiji) and I noticed that at a certain area in my school, I have 3/5 bars of signal yet I can't seem to text/call and use the network. Is this a network problem or phone problem? Or can it also be my SIM? My SIM card is pretty old. However everything was fine when I use my Sony Ericsson W715 in the same area.
I should add that my friends on the same network beside me, they can text/call fine, which leads me to believe that this is a phone problem. A poster over at Howard Forums suggested network congestion, but it seems impossible because everyone else can use their phone fine.
I've tried different modems too, but it doesn't help. It's like my Captivate doesn't want to work at certain areas of my school.
Click to expand...
Click to collapse

I am just going to change my SIM. It is about 4 years old now and I think that means it needs to be replaced. I actually worked fine at my home before and now it cant even find a network. I am going to head out for a new SIM in a little bit, I will get back to you on if it works then.

[Q] Help With 4G Data in HTC One AT&T

Hello everyone,
I am somewhat new to android phones, as I just got an HTC One 3 months ago. I successfully rooted my phone and installed the Android revolution hd rom for Jelly bean 4.2. Recently whenever I try to use my data it doesn't work, even though I have a good amount of bars. Also I have not been able to receive mms messages and pictures, they just say "message not downloaded, generic network failure". Any suggestions are welcome.
Thanks,
Whawhasiscumba

whawhasiscumba said:
Hello everyone,
I am somewhat new to android phones, as I just got an HTC One 3 months ago. I successfully rooted my phone and installed the Android revolution hd rom for Jelly bean 4.2. Recently whenever I try to use my data it doesn't work, even though I have a good amount of bars. Also I have not been able to receive mms messages and pictures, they just say "message not downloaded, generic network failure". Any suggestions are welcome.
Thanks,
Whawhasiscumba
Click to expand...
Click to collapse
Go to settings > Mobile Data > Access point names and see if theres anything there. You may need to log onto your carriers website and download APN/MMS settings.

Dempsey22 said:
Go to settings > Mobile Data > Access point names and see if theres anything there. You may need to log onto your carriers website and download APN/MMS settings.
Click to expand...
Click to collapse
Ok so I entered in all of the APN information, and saved it. Is there a step I missed because it unfortunately I still not working. I noticed that I had some other APNs in my list and I was able to select one of them to use. Should I be able to do the same with the one I just saved?

whawhasiscumba said:
Ok so I entered in all of the APN information, and saved it. Is there a step I missed because it unfortunately I still not working. I noticed that I had some other APNs in my list and I was able to select one of them to use. Should I be able to do the same with the one I just saved?
Click to expand...
Click to collapse
What carrier are you with first of all ?

I am with AT&T.
Sent from my HTC One using xda app-developers app

Try typing *#*#4636#*#* in the dialer, click "phone information", then go down and set preferred network type to "gsm/wcdma/lte auto" That's what worked for me.
Sent from my HTC One using xda premium

I just tried the phone information, unfortunately no luck. Thanks though. When I rebooted my phone today there was a notification that popped up that said "sim card inserted, tap to complete setup". I tapped it and a list of my "providers" popped up but at&t wasn't on the list.Is this the source of the problem?

I'm not sure, I've never seen that. Have you tried taking your SIM card out and putting it back in?
You could always call att, ask to get transferred to tech support and have them enter the codes for you. Maybe they got messed up somehow? Idk...
Sent from my HTC One using xda premium

No Service on AT&T

I fixed this by going into the service menu and hitting "NV rebuild"
---------------------------------------------------------------------------------------------------------------------------
I'm not talking about no LTE like some have reported, I have absolutely not service. No data, no voice, no 2G, no 3G, no edge, nothing. My unlock code came in tonight, I punched it in, it said successfully unlocked, and I'm stuck.
1. Device is not blacklisted. IMEI is clean. Phone status still has IMEI and baseband info.
2. I've tried multiple APNs and restarted after selected each.
3. I have bars, but no service is reported. If trying to make a call, it says "not registered on network."
4. I called AT&T to do anything on their end. Whatever they did didn't change anything.
5. I've tried searching for networks under "mobile operators."
6. Tried a factory reset.
If anyone can help, please let me know. Thanks.
Edit: My sim came from a nexus 6. Everything still works fine after putting the sim back in there.

Can u give more detail on how u fixed this? Thanks!
Sent from my SM-N910T using XDA Free mobile app

ShrekOpher said:
Can u give more detail on how u fixed this? Thanks!
Sent from my SM-N910T using XDA Free mobile app
Click to expand...
Click to collapse
With help from your thread about the secret menu
I had initially gone in there about a week ago to see if there was any option to unlock like in previous models. I was trying to be careful not to change anything, but I guess I must have messed something up. Somewhere in there there is an option of "NV Rebuild." I don't remember exactly where it is at and I don't want to ever go back in that menu again :laugh:

Mobile data not working on some apps

I have Motorola Droid Turbo XT1254 Verizon model and I am using it in Asia on a non-Verizon network. Everything including wifi is fine, all apps working but I face alot of problem while using mobile data.
It only works on WhatsApp anf Google maps, I cannot even browse the internet because it doesn't work on Chrome. I tried other browsers but I can only browse the internet using Opera Mini but that has also stopped now. I cannot even call a cab when I am outside because because "Careem", the cab app says that I am not connected to the internet.
The H+ sign appears when I turn mobile data ON and I have also checked with my network operator, there is no issue at their end. They say there is something wrong with my phone.
I don't know where to start the troubleshooting. Can anyone help pl? Thanks in advance.

Someone advised me to check my APN settings. I went to the APN settings and there was nothing there. I first reset it to defaults and then added a new APN according to my network settings and everything is working fine now.
Whenever you put a new SIM, APN settings are automatically sent by the network and saved by the phone but that didn't happen to me so I had to do it manually.
Hope this helps someone someday!

kahafeez said:
Someone advised me to check my APN settings. I went to the APN settings and there was nothing there. I first reset it to defaults and then added a new APN according to my network settings and everything is working fine now.
Whenever you put a new SIM, APN settings are automatically sent by the network and saved by the phone but that didn't happen to me so I had to do it manually.
Hope this helps someone someday!
Click to expand...
Click to collapse
Are you on a custom ROM or stock Verizon Marshmallow firmware? There's another issue with custom ROMs even for people on Verizon, the default is Straight Talk (an MVNO), not the REAL Verizon. (Because S comes before V, alphabetically.) It's an MNVO using Verizon signal, but REAL Verizon customers will often not get messages, get very slow speeds --- and they don't know anything is wrong because nobody ever checks their APNs anymore.

ChazzMatt said:
Are you on a custom ROM or stock Verizon Marshmallow firmware? There's another issue with custom ROMs even for people on Verizon, the default is Straight Talk (an MVNO), not the REAL Verizon. (Because S comes before V, alphabetically.) It's an MNVO using Verizon signal, but REAL Verizon customers will often not get messages, get very slow speeds --- and they don't know anything is wrong because nobody ever checks their APNs anymore.
Click to expand...
Click to collapse
I am on the stock ROM Android 6.0 and I couldn't understand a word from the rest of your message
Sorry, noob here

kahafeez said:
I am on the stock ROM Android 6.0 and I couldn't understand a word from the rest of your message
Sorry, noob here
Click to expand...
Click to collapse
Is your bootloader unlocked? Do u have TWRP?
If yes then just flash clear-modem-status.zip by @bhb27. Search it using xda search.
If No then reflash your stock modem via fastboot. There are tutorials for our device on how to do so.

zadeora420 said:
Is your bootloader unlocked? Do u have TWRP?
If yes then just flash clear-modem-status.zip by @bhb27. Search it using xda search.
If No then reflash your stock modem via fastboot. There are tutorials for our device on how to do so.
Click to expand...
Click to collapse
Thanks for your reply Zadeora but my issue has been resolved now. The APN settings were incorrect. Now all good

Data capability lost after signal loss

Every day I travel on the London Underground and obviously lose 4G signal when I am below ground.
Since the last update a week ago to 10.2.26.0, when I come back into a 4G area I cannot use any data services without either rebooting the phone or toggling Mobile data on and off, which is very frustrating.
The bars will show full 4G but no data will flow on any app until I do this.
Has anyone else experienced this?

Same on mine...

Yes same issue here

I had this happen to me earlier and it turned out that the access point settings had been altered at update from one firmware to the next. The system tries to install some generic APN-settings based on my operator’s name as my operator has no automatic way of installing them the usual way on this phone as it does on the more commonly used brands.
Check with your operator what the settings should look like and enter them under the access point settings for the sim-card if the current ones look off. Just an idea because I had the same problem going back to 4G from Wi-Fi. Reboot or airplane mode was the only thing to fix it for me. To be more exact it was the address for the setting “APN” that was wrong for me. The system had put an address that wasn´t a valid IP-address. Obviously, Xiaomi had tried to guess the address based on my operator name but got it wrong. As soon as I got the right setting in place all problems were gone.
This problem got worse as I had activated LTE voice calls. Before that it only happened occasionally, but with LTE-voice calls activated it happened every time I went from Wi-Fi to 4G.

gerhard_wa said:
I had this happen to me earlier and it turned out that the access point settings had been altered at update from one firmware to the next. The system tries to install some generic APN-settings based on my operator’s name as my operator has no automatic way of installing them the usual way on this phone as it does on the more commonly used brands.
Check with your operator what the settings should look like and enter them under the access point settings for the sim-card if the current ones look off. Just an idea because I had the same problem going back to 4G from Wi-Fi. Reboot or airplane mode was the only thing to fix it for me. To be more exact it was the address for the setting “APN” that was wrong for me. The system had put an address that wasn´t a valid IP-address. Obviously, Xiaomi had tried to guess the address based on my operator name but got it wrong. As soon as I got the right setting in place all problems were gone.
This problem got worse as I had activated LTE voice calls. Before that it only happened occasionally, but with LTE-voice calls activated it happened every time I went from Wi-Fi to 4G.
Click to expand...
Click to collapse
Mine is unchanged from update, and it's as indicated on my operator site

meti84 said:
Mine is unchanged from update, and it's as indicated on my operator site
Click to expand...
Click to collapse
So do you have:
wap.tim.it
or:
ibox.tim.it

gerhard_wa said:
So do you have:
wap.tim.it
or:
ibox.tim.it
Click to expand...
Click to collapse
Well, I didn't update my profile in a while, I have fastweb now... BTW I have apn.fastweb.it

meti84 said:
Well, I didn't update my profile in a while, I have fastweb now... BTW I have apn.fastweb.it
Click to expand...
Click to collapse
When I ping that address it comes up as invalid. You should see if there are alternatives.

gerhard_wa said:
When I ping that address it comes up as invalid. You should see if there are alternatives.
Click to expand...
Click to collapse
https://www.fastweb.it/myfastweb/as...ne-configura-internet-su-smartphone-o-tablet/
It's in Italian, but as you can see it's the official Fastweb guide

gerhard_wa said:
I had this happen to me earlier and it turned out that the access point settings had been altered at update from one firmware to the next.
Click to expand...
Click to collapse
Doesn't seem to be the issue. I am on EE here in the UK and the APN is correct. Can't see how toggling data off and on would resolve this if the APN was wrong anyway?

meti84 said:
https://www.fastweb.it/myfastweb/as...ne-configura-internet-su-smartphone-o-tablet/
It's in Italian, but as you can see it's the official Fastweb guide
Click to expand...
Click to collapse
I can see that but still, do a trace route for apn.fastweb.it and it can´t solve that address so there is something wrong with it. Anyway hope you will find the culprit of your problem!

I almost have the same problem .. after a phone call 4g disappears .. After the talk 4g comes back but the data connection does not work anymore .. Data off and switching on is the solution. I have send my phone back to the retailer i hope dee can fix the probleem.

I have the same issue.......latest Global Beta......switching data off and on for now....and hoping that fix is coming as it is annoying...

Okay so this is found to be experienced by others - how do we bring this to Xiaomi attention? Right now a phone that just randomly chooses to lose data capability is useless, as I lose notifications, messages, home automation activity prompts, Ring doorbell alerts, Nest smoke alarm alerts - pretty much renders the phone useless if I am not connected to WiFi, and the worst is not knowing it's stopped working till I try something.

One thing you could do if you have activated VoLTE is to deactivate VoLTE. If this makes a difference it sugests that something is wrong in your local configuration. Otherwise you may have to take it back to the seller.

Same problem here in Germany with o2.
I just found this solution to slightly another but very similar problem and I'm testing it right now.
Go to the APN settings (Settings -> SIM card Settings) and better do a reset to default (not necessary). Choose the o2 option and in a field called MVNO type select IMSI. You should be fine.
Will report back if this worked.

gerhard_wa said:
One thing you could do if you have activated VoLTE is to deactivate VoLTE. If this makes a difference it sugests that something is wrong in your local configuration. Otherwise you may have to take it back to the seller.
Click to expand...
Click to collapse
VoLTE is not enabled on my device, but this doesn't sound likely anyway - I have had the phone since the first week it was available in Europe - over 3 months - but the data stopping working only happened with a recent update. Anyway, this thread and other forums suggest this is a wider issue - can't see that sending it back to the retailer will achieve much as the replacement will likely do the same!

cool400 said:
Same problem here in Germany with o2.
I just found this solution to slightly another but very similar problem and I'm testing it right now.
Go to the APN settings (Settings -> SIM card Settings) and better do a reset to default (not necessary). Choose the o2 option and in a field called MVNO type select IMSI. You should be fine.
Will report back if this worked.
Click to expand...
Click to collapse
The APN settings are all greyed out on EE - I can read them but I can't edit them?

Any news here? I'm still stuck with this annoying problem.
I'm on MIUI 10.2. 9.0 Global and no updates available.

Just came here to say I have he same problem. Not really too annoying as all it takes is toggling airplane mode off then back on after a couple of seconds. But sometimes I don't even know the problem has surfaced and I end up missing notifications.
It happens sometimes even after I enter an elevator then leave.