No mobile data - G4 Q&A, Help & Troubleshooting

So my wife's g4 that was having WiFi problems now has no mobile data. It can make and receive calls and texts. WiFi is still uselessly slow. Pretty sure the phone has a problem at this point.

I was having the same problem, took the Sim card (AT&T) out, put it back in, restarted the phone. It's been working since
Sent from my LG-H810 using Tapatalk

Is your Mobile network setup correctly? check it by going into Settings -> Mobile Data -> Menu -> Mobile Networks and look in the Access Point Names if nothing is there you will need to add a new APN and you can get that from the Carrier itself they should have it freely available

It's a Sprint phone so I don't have that option. I removed and reinstalled the SIM card and that didn't help either.

I think you should exchange it for another unit. It sounds defective?

Related

Mobile Network Problems

Had my desire since Thursday April 1st, on T-Mobile, my first android phone so just getting to grips with it...
Today it won't connect to mobile network for data, I can make calls ok, just not browse web or use anything that requires a network connection like google maps or e-mail, there is no G or H or 3G in the menu bar, just a signal strength indicator, Mobile Network is enabled in settings btw, before you ask!
I still have my Touch Diamond 2 and the sim works fine in that for data so not a T-Mobile Issue I don't think, my O2 Sim (from Diamond 2) works fine in TD2 and not in Desire also...
Think it may have had it, was working fine Thursday to Today...
I've tried restoring to factory settings from the Privacy Menu entry and that has made no difference (incidentally, the restore from backup it offered me didn't appear to restore anything, no contacts etc carried over... so won't rely on that again either)
Is this anything typical for Android or have I just got a freak phone
Any help gratefully received or I'll have to get it swapped.
EDIT: Perhaps should point out that my Desire is not T-Mobile Branded/SIM Locked, it's from Carphone Warehouse, so is running unbranded HTC Rom (OTA Firmware update installed on first day within about 2 hours of getting phone)
Paul
Same thing happing to me all day, my phones also from CPW I cant get on the web or youtube or Google the Beeb or applications or anything else online All working ok since last week when I got it apart from it been very hit and miss conecting to anything online.
@popkid, T-mobile usually send mobile data & MMS settings by SMS as soon as you insert your SIm into a new phone. If this did not happen visit the T-mobile support site, there is a page where you can provide your mobile number and T-mobile will send you the settings.
jah said:
@popkid, T-mobile usually send mobile data & MMS settings by SMS as soon as you insert your SIm into a new phone. If this did not happen visit the T-mobile support site, there is a page where you can provide your mobile number and T-mobile will send you the settings.
Click to expand...
Click to collapse
My phone was bought from CPW on a T-Mobile contract, the sim I am using is a T-Mobile sim from my HDT HD2 which I had only 2 weeks ago, the sim was working fine in the HD2, the sim I received with the Desire was given to my Mam. I've been on the T-Mobile site and entered my number but when the choose your phones appears the HTC Desire is not there.
jah said:
@popkid, T-mobile usually send mobile data & MMS settings by SMS as soon as you insert your SIm into a new phone. If this did not happen visit the T-mobile support site, there is a page where you can provide your mobile number and T-mobile will send you the settings.
Click to expand...
Click to collapse
Settings were working just fine Thursday to Yesterday... it just stopped working for data overnight, got it to work for about 10 mins earlier after another factory reset, but then the H in menu bar disappeared again, O2 sim doesn't work for data in the Desire either... T-Mobile and O2 sims both work fine in my TD2, definitely seems to be a problem with the Desire itself or the ROM on it at least
On rebooting with new sim the desire asks for network and says it is configuring, but once you get to the social networking bit it says it can't connect to the network and to enable mobile data settings... (which are already enabled) I didn't get a text from T-Mobile when I first had phone btw.
Paul
Well it's all of a sudden started working for me, must just be a server problem I think, no doubt it will revert back to being very slow or not conecting again tomorrow
popkid:
I read somewhere, try to turn on then off the flight mode.
That could trigger the phone to activate the mobile network.
Otherwise, I suggest to give HTC a call.
Working... Finally
Tracked down the issue with mine... I think anyway, seems to be randomly deleting the APN info from the Mobile Network Settings, if I notice that I have no network and go to that page it is empty... reselect the network I'm on and it sorts itself out, no idea why they are being erased though!
Definitely not a server issue for me as the SIM works in my other phone when not working in desire...
P.
Sorry - wrong post for thread.

[Q] Why Does my Korean N7100 think I'm roaming and not connect to mobile internet?

I bought my n7100 on taobao here in China, and it's a Korean version. I put my China Mobile sim card in, and it makes and receives calls, and text messages and can use wifi with no problem.
The only thing is the mobile data doesn't work. I rooted and tried tweakker, and HiNet, to reset my APN and MMS settings, but that didn't work. My phone still thinks I'm roaming.. it displays
this message "Data Roaming, You have lost data connectivity because you let your home network with data roaming turned off".
I've also tried updating the APN and MMS settings manualy with information i've found on the web.
I've googled and searched this forum and I can't find much. I thought it would be an easy APN settings fix but it seems not to be...
I took my phone in to the local China Mobile store they couldn't fix it. I took it to a local android expert here and they didn't know what to do.
Any ideas would be greatly appreciated.
If you bought a Korean Note 2, you don't (shouldn't) have an N7100. I also purchased one through Taobao.
You should have an SHV-E250S, E250L, or E250K. Which one do you have? Check the baseband version under Settings > About device page.
No matter what, you're going to be limited to 2G only with China Mobile.
You're right, It's SHV-E250S, and I'm fine using the 2g in China on China mobile, but I'd just like to know how..any help?
Baseband Version is E-250SKSVLJK
Try removing all modifications to your APN settings.
Next, go into Settings > More settings > Mobile networks > Network mode and change it to GSM only. Also make sure that Data roaming is not selected. Run a new scan for network operators while you're in there to refresh your APN settings to the right ones.
In data network mode I only have 2 options "3g only" or "LTE Preferred" I have it on 3g only. I have now unchecked data roaming, but I don't see any place to scan for network operators. I have included a few screenshots here, sorry i don't know how to insert them.. http://tinypic.com/r/2198djn/6 http://tinypic.com/r/24dhfmx/6 http://tinypic.com/r/2zof98w/6
Now it's obvious why you don't have data. Is this the stock Korean ROM? Are you rooted?
I can point you to a decent ROM that will fix all of this, provided you have the patience to fix it. It's relatively easy.
Yes it seems to be the stock Korean ROM. I am rooted using http://forum.xda-developers.com/showpost.php?p=31801060&postcount=2 I'm more than willing to flash another rom. I've put about 20 hours into this so far, I imagine I can muster enough patience to finish it
Once they give us a damn Korean Note II section, this kind of information will be a lot easier to find.
Try this ROM for now, it's the one I've been using for a few weeks and I love it.
Link source: http://koxda.com/thread-98683-1-1.html
ROM Download: http://pan.baidu.com/share/link?shareid=149494&uk=3355956772
Password: koxda.com
Thanks a lot the rom (715mb) is downloading now, I have tried to flash ROM's on my old galaxy nexus, and on this note II, but I never succeeded, can you please link me to a good guide, on how to flash this rom? thanks.
Odin is included in the download. If you're using Windows 7 you may or may not have the drivers for the phone, and can grab them out of the All-in-one Toolkit. Just installing the toolkit should install the drivers necessary.
http://forum.xda-developers.com/showthread.php?t=1923956
The ROM you're downloading has two files and two pictures, as well. Open the pictures and follow along. All you have to do is click two buttons, select two files, then hit start. It WILL wipe your phone.
I installed that rom you suggested, I went into settings and did GSM only, and had it automatically find my network (china mobile) selected it, rebooted, and still it says i'm roaming so there is no connectivity... any more ideas?
Can you try somebody else's SIM?
There's no reason you should not be getting service unless something is not right with your SIM or phone.
I installed the rom you suggested, i went into settings and made it GSM only, also had it automatically correctly locate my network (china mobile) and it said "registered on network".. but it still isn't working, same problem, it says no connectivity cus i'm roaming.. any ideas now?
my gf will be home from work in a couple hours, I can try her sim card then.. my sim card was cut by me for my old iPhone.. is it possible or likely that the phone can still make and receive calls, but that somehow data connectivity was affected by me cutting the card? also one guy at the phone fixing store tried his sim card (from another company) and internet worked fine he said..
dadroidda said:
I installed the rom you suggested, i went into settings and made it GSM only, also had it automatically correctly locate my network (china mobile) and it said "registered on network".. but it still isn't working, same problem, it says no connectivity cus i'm roaming.. any ideas now?
Click to expand...
Click to collapse
China mobile have various sim plans, from local to province to national. Are you using the sim in the same city in which you bought it? If not and you don't have a national plan, it could be why the phone is showing roaming. In China going from one province to another is already considered roaming unless you have a national plan. This is from my experience back 2 years ago. Also, you best check at a China mobile shop if you have data activated, gprs/edge is not activated by default, you need to ask them to do it.
I would advise you to switch to China unicom as they have 3g/hspa which is much faster than china mobile.
Sent from my GT-N7105 using xda premium
For clarfication, I am in Hainan, and the card is from hainan. I use the same sim card in my galaxy nexus without any problem. I tried my gf's card just now, it didn't say any problem with connectivity, and did not display roaming.. And it shows the G symbol (for 2 or 3 G I assume), and has up and down arrows next to it.. but it doesn't actually work for browsing the web or using apps over the data network.. I even reset all the APN settings and let it automatically find the China Mobile network, but it didn't help.. what if I try to set the APN settings manualy? and any other ideas??
Showing the G symbol is GPRS, which is 2G. You will not get 3G on the N7100, N7105, or Korean model Note 2 on China Mobile.
Sounds like you need a new SIM card. You can try to set the APN manually to make the data work with hers. I've never had to set an APN manually and I've used many phones here with all 3 carriers, so it's a bit odd to me. No clue why your card doesn't work, but since hers is working fine, it's definitely not your phone.
For the record, her card displayed G, but even after messing with settings, I couldn't get it to have working data network..
Today I bought a new card, and had it officially cut to size, put it in the note II and it's still telling me no data connectivity due to i'm roaming.. i'm so frustrated
edit: after restarting a few times and trying to automatically make it register on china mobile .. it worked on the 4th attempt.. it still displays data roaming, and I had to enable data roaming... but now it works, even though it says i'm roaming?? wtf
Ive the same problem with my Korean galaxy note 2 all voice service work perfect but when I tried to turn on data it says insert Usim Card to access network please help

[Q] no signal, can't select network, but there is mobile internet.

Hi.
Galaxy Nexus, 4.2.1, bot unlocked from amazon about 6 months ago.
On dec 2nd signal just went off. So no calls nor receiving can be done. While mobile internet is still ok.
Network is giffgaff, running through O2 - UK.
Taking this sim to other phone - works fine.
Support from giffgaff said that everything is perfect on their end.
Putting any sim in this phone, shows same issues - no signal, but there is mobile internet.
Checked status of IMEI, and it says in online services that phone is unblocked.
I have tried on/off airplane mode, restarting, taking battery off for a while, with sim in and out, as well did factory reset - still issue is here.
It is unrooted, just original rom.
Going to settings > mobile networks > network operators > I select any network and it says: "Can't connect to this network at the moment. Try again later.". Same when choose automatically.
It allows to do emergency calls, and in status bar shows: "emergency calls only | giffgaff".
In About Phone section, network is "O2 - UK" as suppose to be, Signal strength "-101 dBm 7 asu", mobile network type "HSPDA:8", service status "Out of service", Roaming "Not roaming".
Please ask any questions if any additional information is needed.
King regards.
I am looking forward to anyone to try assist with this issue, and kin to help.
Contact your operator for change your sim, it happens to me this summer, my Sim card was working well with other phones but with my Gnex everything was disabled. Then I've received my new Sim card and everything is working well
Sent from my Galaxy Nexus using xda premium
Man_u said:
Contact your operator for change your sim, it happens to me this summer, my Sim card was working well with other phones but with my Gnex everything was disabled. Then I've received my new Sim card and everything is working well
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Then other SIMs would work well. But inserting any SIM in this phone - doesn't work for calling. Only mobile internet.
mrmoka said:
Hi.
Galaxy Nexus, 4.2.1, bot unlocked from amazon about 6 months ago.
On dec 2nd signal just went off. So no calls nor receiving can be done. While mobile internet is still ok.
Network is giffgaff, running through O2 - UK.
Taking this sim to other phone - works fine.
Support from giffgaff said that everything is perfect on their end.
Putting any sim in this phone, shows same issues - no signal, but there is mobile internet.
Checked status of IMEI, and it says in online services that phone is unblocked.
I have tried on/off airplane mode, restarting, taking battery off for a while, with sim in and out, as well did factory reset - still issue is here.
It is unrooted, just original rom.
Going to settings > mobile networks > network operators > I select any network and it says: "Can't connect to this network at the moment. Try again later.". Same when choose automatically.
It allows to do emergency calls, and in status bar shows: "emergency calls only | giffgaff".
In About Phone section, network is "O2 - UK" as suppose to be, Signal strength "-101 dBm 7 asu", mobile network type "HSPDA:8", service status "Out of service", Roaming "Not roaming".
Please ask any questions if any additional information is needed.
King regards.
I am looking forward to anyone to try assist with this issue, and kin to help.
Click to expand...
Click to collapse
Based on this info, I suspect your radio simply died. You could of course try to reflash the radio firmware yourself, but I would not get my hopes up.
Petrovski80 said:
Based on this info, I suspect your radio simply died. You could of course try to reflash the radio firmware yourself, but I would not get my hopes up.
Click to expand...
Click to collapse
Thanks for info. I thought about that as well.
So would it be the option if I have bought the device from amazon, to use their RMA services - they should replace device.
Is that right?
Thanks for helping out.

Phone Stuck Showing "Searching / No Service"

Hello all. I purchased a edge+ today but whenever I insert a sim, the phone stays on searching. I made sure that I rebooted the device and I also tried re-seating the sim many times. I believe the device is unlocked and the imei/esn is in clean standing with T-Mobile. I tried a MetroPCS sim card and it stayed on searching, same thing happened with a Verizon sim. However when I inserted the T-Mobile sim, it sometimes says no service but ever since I rebooted the device, it stays on "searching" no matter which sim is installed. I find this whole ordeal frustrating since the signal bars show up for the MetroPCS and T-Mobile sim but with Verizon nothing happens. Any help would be greatly appreciated.
Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com
knite75 said:
Yours is G928T? If yes, it does not support Verizon/Sprint even if it's unlocked.
Did you buy it off of Craigslist/Ebay? It might be blacklisted. checkesnfree.com
Click to expand...
Click to collapse
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?
MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
gazasalim said:
Yes, it's the G928T but it's not blacklisted I checked. The simcards I was using on the phone were old ones(no longer in service) I thought they would work. I used a scissor to cut my WORKING sim and placed it in the phone and it took the MetroPCS sim. Everything works fine now except calls and text only work with WiFi Calling on. If I turn off WiFi, I can't text or make calls(not on registered network) but if I turn the WiFi back on, it works fine. Any suggestions?
Click to expand...
Click to collapse
knite75 said:
MetroPCS and T-Mobile are on the same network.
Check/add MetroPCS APN.
Setting -> Mobile Networks -> Access Point Names
Add MetroPCS APN if it's not there.
Click to expand...
Click to collapse
Yeah I know they are which baffles me as to why it isn't working. I tried adding a custom APN but same thing happens. I get calls/sms on WiFi but if I turn it off I get "No Service"
Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk
erick161 said:
Just go to metro and get a new Sim. You could have damaged it by cutting it. It should be free. ATT gives me then free all the time. Usually, the phone will just auto update the apn settings when a specific carriers Sim is inserted
Sent from my SM-G928T using Tapatalk
Click to expand...
Click to collapse
I went and it turns out the device is blacklisted. This whole time I was rolling with the imei in the phone, after checking last night, I noticed that the imei on the back of the device differs from the one that's actually on the software. I was able to get in touch with the seller and he's coming back to give me my money back. Guess a mod can mark this thread closed.

Can't connect to mobile network.

I have a pixel 3xl, up to date stock non rooted, on straight talk lte/cdma Verizon network. I got a text saying straight talk now has VoLTE so I tried to find it in settings but there's no option for it. When I search it it comes up but when I click it it goes to mobile settings and it's not there I did the *#*#4636#*#* and it's also grayed out there. I changed the network mode in that diag screen to lte/cdma to see if that helped, was on global before i think. Still no VoLTE and for some reason I can't make calls. I have data, can send and receive texts but when I go to call it says no network. Removed Sim card didn't fix it, restarted it. Safe mode doesn't help either. Tired clicking trigger carrier provisioning, updated the smsc. Change mobile network to lte only, back to global, lte/cdma. I have no idea what else to try. Straight talk is basically useless for customer service so I haven't even tried yet lol.
Update!! It works!! Somehow I either damaged my sim card when I switch from my pixel 2xl to this 3xl and it somehow lasted till now. Or when I changed my network settings something wrote to the sim?( And it messed it up?? IDK much about how the phone and sim interact with each other)... But I did have a 2 year old sim card, it did not have VoLTE or wifi calling capabilities I now realize. So I bought a new SIM card at Walmart and activated it though the straight talk app on my account and kept the same number. Works perfectly and I now have VoLTE, no wifi calling yet but the option is now there and lets me click it but it fails. Doesn't matter to me, I'm just happy to have VoLTE. I'm leaving this post because straight has horrible customer service and I could find anyone who ran into this specific issue.

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