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No Signal/No Data Suddenly on Dash 3G (T-Mobile/Ookba 3VOLUTION ROM)

Hello all. It seems as though I've come across a pretty serious issue with my Dash 3G. I have been using Ookba's 3VOLUTION ROMs for some time now and over the weekend, my phone suddenly stopped being able to make/receive any calls. I re-flashed the phone to the latest 3VOLUTION ROM (04/10/10 build) and it hasn't fixed the issue. I've put the SIM into another phone and it works perfectly, so I know it's not a bad SIM card. I don't know of any software settings that can persist like this (after a ROM flash). Furthermore, why it happened suddenly is totally beyond me. Does anyone have any suggestions I can try? This is terrible timing as I just had a job interview and I need to keep my "ears open" for a possible callback.
Thanks guys!

Bump - anyone have any suggestions?

I have the same problem. I switched from my personal SIM to my work SIM (another provider) and now it looses the service contact after a few minutes.

I realized this happens when I have the data connection on and the GPS on at the same time. This happened to me the first few days with the original ROM too when I first got the phone. So when I use google maps or evernote with gps, the phone service shuts down. Weird.

Mine is the Ozone by VZW (CDMA) but after it was flashed to the 3VO ROM on WM6.5, I got errors on the GSM side when using the T-Mo prepaid Sim, data connection was turning itself off so I couldn't even access T-zone (which was working just fine earlier, already unlocked & running 6.5)
Took me a while to check, goggle & search - realized that some of the GRPRS & Proxy settings were locked by default to the VZW embedded Sim, and had to go into Connections & under Advanced (Menu - Right Soft Key)
to change it. Sort of tricky since the wap, mms & other settings were all set properly but it was easy once I changed it to T-Mo's proxy & WAP names as created. Same for using AT&T's MEdiaNet, as otherwise, as soon as the GSM network was found, data connection was turned off.
Take a look at yours and check the various Menus & Settings screen to see if it might've been reset to default, etc. etc.

Anyone Figure This Out?
Just happened to me this weekend (T-Mo Dash 3G). Simply stopped connecting to the network for voice or data. Worked fine on Saturday but dead Tuesday morning. Also running 3VOlution ROM. I called T-Mobile and we played with network settings, etc. but no luck. Tried a hard reset and that was no help.
Reset and rebooted countless times after changing any setting I could think of. Hopefully someone has figured this out or it looks like I'll be buying a new phone tonight.

Bad SIM ...
rhavasy said:
Just happened to me this weekend (T-Mo Dash 3G). Simply stopped connecting to the network for voice or data. Worked fine on Saturday but dead Tuesday morning. Also running 3VOlution ROM. I called T-Mobile and we played with network settings, etc. but no luck. Tried a hard reset and that was no help.
Reset and rebooted countless times after changing any setting I could think of. Hopefully someone has figured this out or it looks like I'll be buying a new phone tonight.
Click to expand...
Click to collapse
Was a bad SIM. I swapped mine for my wife's and the no signal followed my SIM. Dropped by T-Mobile this morning on the way to work and they gave me a new one free, no questions asked. Phone's back to normal.

[Q] Possible APN problem

Hi!
My girlfriend (who is forever having problems with phones) just bought a Nexus 5 after her Galaxy S2 spontaneously gave up on life, but despite showing a full signal it seems to be unable to connect to a network (it's supposed to be on the UK's Orange network). When it first started up she said it had a screen saying something like 'activate data services', but that after 10 minutes or sitting on that screen and apparently stuck, she skipped it. The phone is showing a full strength signal, but no calls/texts or data works.
We've been unable to get back to that screen, even after doing a factory reset with/without the SIM inserted.
Anyway, I figured it was an APN issue, so I've tried setting it up for her, but whenever I create a new APN and try to save it, it just disappears and loses all of my settings. I've had a look around XDA and it seems a few others have been having the same issue, but nobody I've seen has posted a fix. Does anyone have any suggestions?
**
Edit
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Tried it with my SIM in her phone and it works fine, so I guess it's a SIM issue. Sorry about that. She can call the phone company tomorrow.

Constant "Emergency calls only" and no signal

Heyho,
about three weeks ago, my N5 suddenly lost it's signal over night and shows me "Emergency calls only" and it won't register into any network, just giving "Selected network unavailable".
When this occured my N5 had 4.4.2 stock ROM and rooted. I've unrooted it and updated to 4.4.4, but I still got the same problem.
Problem occurs with any simcard, while simcard works with other phones just fine.
Have deleted and reconfigured APN, but didn't make any difference.
I get a signal every few days, but I still can't receive text/calls or call/text anyone and my mobile data doesn't work.
I even tried to downgrade to 4.4, but that didn't solve my problem either...
I'm from Germany, but in New Zealand at the moment, so I really need my phone in case of emergencies and to stay in touch with family/friends.
I have been searching for a solution since it started, but have not been able to find anything that worked.
Sending it back to Google isn't an option right now because I am travelling.
I am really thankfull for any suggestions or if anyone knows how to fix this problem!
Cheers

Have you checked to make sure the network setting says 2g/3g/LTE preferred. Because I had this problem when it was switched to 2g only and was fixed by the above option

If the above fails trying going to your dialer and typing *#*#4636#*#*. Go into phone information and you should see a drop down box to select your network mode. Play around with those until you get a signal but you might not want to try CDMA options (WCDMA is ok) since you're on a GSM network.
Sent from my Nexus 5 using XDA Free mobile app

had exactly the same issue as you mentioned. Nexus 5 tends to lose network without any logical explanation and it tends to work at one place but stop showing network if you walk half a mile down the road (or may not show any network anywhere). Google has released an update in June in which they have updated the modem to solve the problem..given that I am in India and the June update was for India, Australia and Newzeland, it worked like a charm for me (all i had to do was flash the modem from twrp)..people as far away as netherlands have reported the modem to work for them..
NOTE: IF U INTEND TO FLASH THE LATEST MODEM, DO NOT FORGET TO TAKE A BACKUP OF YOUR CURRENT MODEM PRIOR TO FLASHING THE NEW ONE..

check your sim card. if you can, try someone elses.

Alright,
I've tried every thing again so far, but nothing seems to work.
Sitting in the library, I noticed that I get a signal, when connected to WiFi, which stays for 1-2 hours after disconnecting.
But I still can't make any calls or text and mobile data doesn't work though the APN is correctly configured and and data enabled.
I really hope to be able to solve this problem somehow, don't want to put aside my beloved N5 :/
_____________________________________________________________________________________________________________
Edit: Haven't found any solution so far and bought a new phone for the moment until I'm able to send it back to Google.
Might be an hardware issue and not software related.
Cheers

Kimpfimp said:
Alright,
I've tried every thing again so far, but nothing seems to work.
Sitting in the library, I noticed that I get a signal, when connected to WiFi, which stays for 1-2 hours after disconnecting.
But I still can't make any calls or text and mobile data doesn't work though the APN is correctly configured and and data enabled.
I really hope to be able to solve this problem somehow, don't want to put aside my beloved N5 :/
_____________________________________________________________________________________________________________
Edit: Haven't found any solution so far and bought a new phone for the moment until I'm able to send it back to Google.
Might be an hardware issue and not software related.
Cheers
Click to expand...
Click to collapse
hey kimpfimp... u r not alone .. ive had this problem for 2 months now .. .. i have a nexus 5 and i have this exact same problem .. leads me to believe maybe its software related .. started after lolipop .. havent been able to find a solution yet !
worst part is that it is happening on an Replacement device after i RMAd my first nexus for a power button problem !!
i hope its software related and can be fixed .. because google is now refusing to rma this as im now out of my warranty period !

[Q] Constantly loosing connection

Almost since I got my nexus 5 last year it has been loosing its connection about two times per day. It does this in three different ways.
1. total loss. The little outline of a triangle appears and a notification that I have lost my connection. Clicking the notification opens the manual selection of networks. I select the network and all is fine.
2. full connection with an exclamation mark. solves it self by waiting for a while.
3. full connection with H/3G but when trying to access the internet there is no connection. This one is really weird. The solution here is top open the quick settings, select flight mode, which greys out the connectivity triangle but keeps the H or 3G part white on top of the greyed out triangle that has a slash over it. About a minute later the H or 3G disappears and I can turn off aeroplane mode. This either restores the connection or jumps to problem one.
First I thought its a hardware problem, but since I don't want to part with my phone I never sent it back to google for fixing.
When android 5.1 was released I installed that manually and surprisingly did not have any problems at all after this. But then I went abroad and using the same sim connected to a local network in the country I went to. It took 4 tries to join one of those networks. When I then came home this problem started again.
My thought is that there is some setting that should be there that stayed from my trip. I have tried clearing all caches from the storage in settings and the dalvik cache. No difference. I'm not to keen on re-installing my phone again. So my question is, has this happened to anyone else? Did you solve it? Is there something I can do to remove all previous settings for the network to make it work again? Other suggestions?

This happens to me, at least 4 times a day for me, it has only been doing it since I installed 5.1 on my nexus 5, which was a brand new one from Google since I smashed my screen and they just gave me a new one, I'm in the UK btw, not sure where you are but it does take forever to connect to mobile network when I turn wifi off too.

I constantly lose connection at my house going from E to H+ to LTE throughout the day
Sent from my Nexus 5 using XDA Free mobile app

kieran_bondflashy said:
This happens to me, at least 4 times a day for me, it has only been doing it since I installed 5.1 on my nexus 5, which was a brand new one from Google since I smashed my screen and they just gave me a new one, I'm in the UK btw, not sure where you are but it does take forever to connect to mobile network when I turn wifi off too.
Click to expand...
Click to collapse
I'm in Spain.
For me it happened before 5.1 as well. But 5.1 fixed it temporarily, until I travelled with my phone. Have you had to switch to another network with that phone?
For some reason when manually looking for a network it seems to be running on a timeout function because it takes me 60 seconds to get the list, always. This feels like a very antique solution, they should just populate the list as a network is found like wifi does it.

S6 - SM-G920F No Cell Reception

This handset was absolutely fine until it updated to Nougat then it wouldnt sign onto the network. It see's the network fine, just wont ever register on it. Sometimes shows a signal bar but emergency calls only, other times a circle with a 45 degree line through it. I have tried multiple roms and all the same, I should add that Secure Boot is enabled and since it updated to 7.0 I cannot downgrade back again. I have checked the phone hasn't been blacklisted, all comes back clean.
Can anyone help? It works fine apart from this unable to connect to network, try later problem.
Thanks in advance
Ballz(Matt)