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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?
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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.

xperia j issue, need advices

hi,
i have a issue with my xperia j (unknown network); i searched all this forum (before writting this thread) and i found some topics about unknown network but in my case i think is a lil different.
so here is the case:
xperia j, unlocked, rooted etc... (using 4.1.2, 3.0.8 fxp, cm10)
i used for weeks my Orange sim card with it (w/o problems); on new year night (cause of too many sms) i turned plane mode on. in the morning when i turned plane off, the phone was showing me "unknown network | orange"; (reset-ed, cleared caches etc); each time i turned it on there was no promp or other err about the sim except unknown network (but it can see it is orange). also the code *#*#7378423#*#*. is showing me nothing (looks like the popup appear but get close right away).
- works fine with other network operators (i tried 2 more sims from diff operators); but doesn't work with orange anymore.
- also, my sim not workign in other phones as well
i can't understand why the phone works with 2 other operators but not orange anymore.
but also why my orange sim can't be seen in other phones (phones that are orange as well).
if i try revert to stock ttf... will might solve phone unknown netowrk issue? but what about sim? both issue have same resolve or they are diff problems?
any advice, hints will be helpfully.
thank you

Can't get connection to ANY carrier

Hi! I'm having some mayor problems with my OnePlus One.
For some time I have had problems getting calls and sms when using 4G but it seemed to be a problem with my carrier but 2 weeks ago I dropped my phone and the screen broke so I bought a new screen and replaced it. After that the connection to my carrier dropped randomly and now after trying to fix it in different ways I can't get any connection at all with any carrier !
What I have tried so far:
Factory reset
Reinstalled CM
Put paper under the sim for tighter fit
Turned the radio off and on and restart phone
Change pin code
Replace sim-card
Tried different carriers on my phone (my simcard worked on other phones so it is the OPO that is the problem)
Total restore by fastboot-flashing
Installed OxigenOS 2
Tried all modems from the modem collection on CM and Oxigen.
Retyped the APN by hand
Opened the phone again and checked that all cables are connected well
Tried manualy connect to my carrier under Network Operators
For a short time of maximum 10 seconds I got a 4G connection twice in now 3 days of trying but then it stops working again. It feels like a hardware problem BUT I can see a lot of different carriers under Network Operators but when trying to connect it loads for ever and then says "Can't register to your carrier". I called my carrier and thay said nothing was wrong from their end and when I tried on other phones it worked flawlessly.
I'm really out of ideas now and I don't know where to go from here. I really hope someone of you knows that might be the problem!
Thank you so much!

If imei present you can try mobile phone exchange offer on flip kart like online stores. When this happened to my phone I did it , very easy.

Sometimes opo dont search available network or wont register on any network.
Sulution: go to access point and reset it to default first then go to network and try to search for network n if ur able to search then try ro register manually and if it does not work then go to dialer and dial *#*#4636#*#* then click phone info and select the lte/gsm ato prl mode and then click turn radio off and again tuen it onn then smsc refresh and update ( i dnt remember it correctly) if that dnt help then ur network antena is damaged

Software Update - G955USQS5CRI4 killed 4G/LTE icon in notification bar?

I got the Sept Software update which installed baseband version G955USQS5CRI4, and now the 4G/LTE icon just shows the no signal icon. Calls work so it is apparently just an icon issue, but is anyone else having this issue?

Apparently it killed the data connection as well now, calls do not work with WiFi and WiFi calling off. This is bad.

Just checked my phone and all is good.

Yeah, not sure what happened but I had to reset all network connections and reboot 3 times for it to work again.

I've tried doing a factory reset about 10 times as well as network specific resets, and I have not had any luck resolving. They also replaced my SIM car4d with no luck. Any one else having this issue had luck resolving in another way?

I responded to another thread about this... having same issue. Here was my reply:
I am having the EXACT same issue. I don't remember when the last update came through, but it was Feb 16th when this started happening to me. I was moving to a new apartment, phone battery down to like 10%, so I turned the phone off and put it away. A few hours later I turned it back on and no cell connection. No bars, just a circle with line through it. Settings > About Phone > Status > SIM card status = shows Network "unknown", Mobile network type "unknown", Service state " Radio off", Mobile network state "Disconnected".
My SIM works in a Nexus 6 and Galaxy Note 4, so I know it isn't the SIM card. I've tried everything I can think of to turn the radio back on, replaced the SIM tray (original is cracked), even got a Freedompop SIM just to test, and yeah, it won't work. The cellular radio isn't turning on for some reason.
I will say, a couple days after it happen, I turned the phone on without SIM tray, and I could see empty bars, like it was trying to work. I turned it off, put my SIM in, and it worked... until my replacement SIM tray came in. Turned it off, replaced SIM tray, and it is off again.. for last 2 days. I just happened to turn it on that day and it was working, turned it off some days later and it stopped again. I don't know why.. no apparent reason. So, last couple days I have been turning it on and off, on and off, hoping it comes back on.
If ANYONE comes up with ANY ideas, please let us know!!!

Yea if anyone comes up with a fix for this that would be great, since that update my phone aswell has trouble deciding allow calls to ring or go straight to voicemail. Also noticed a delay in receiving text messages, unsure. I really dont want to have to replace my phone because of a broken update. :/