Develop Bugs

No phone signal yet can use mobile internet

I've got a strange problem that I cannot solve or find anyone else that has had the same problem.
I recently updated to Minco V4 and since my status bar has been showing no signal and mobile standby shows 100% without signal yet I have mobile data. I cannot make any phone calls but can browse the internet. No amount of rebooting, airplane mode on/off will work. I've also gone back to both stock ICS and JB where the problem still exists.
My network is T-Mobile and it won't let me manually connect to it but the phone will occasionally register when I select automatic although it doesn't correct the fault. Anyone have any ideas what has gone wrong with my phone?
UPDATE: It seems I can only get a phone signal when select 2g T-mobile network only or connecting to T-Mobile orange. If I untick 2g networks and it connects to t-mobile 3g I can't receive or make calls.

Does your Radio and baseband match?

I installed the linked radio from the MiNCO thread after flashing the rom and discovering this issue yet it made no difference.
I got a phone signal momentarily about 15 mins ago which allowed me to make a short phone call to test it. I then accepted the JB system update from Google and now have no phone signal, just data.

3G disconnect, only use 2G (GSM). Help me!

I installed room ( {Rom}{ICS} Official Global CM9), after 2 days my phone's network is disconnected. I reinstall the original room 2.3.4 but only use 2G when I used dataroaming; completely unusable 3G & network global mode always (I fullwipe data before reinstalling room 2.3.4 ; radio 1.09.01.0312 & APN properly installed). Please help me how to be able to use 3G
because my phone is example:
Unfortunately, I'm having the same problems with this ROM on HSDPA that I was having on aeroevan's ROM. GSM is found immediately on boot, however, HSDPA is very flakey. It will succeed in connecting every now and again, but then randomly drops the signal and won't reconnect. I thought maybe I just had a weak 3G signal where I was testing, but I have a BB Bold for work as well and that can easily maintain a 3G connection on the same network. I also had no problem way back in the day with CM7.2, but that ship has sailed .
Also, when the phone is in WCDMA preferred mode, after a while the phone will lose all connections (usually after a reboot but not always), including to GSM and when I go to reselect my network operator I get the message "Error while searching for networks". No matter how many times I reboot the phone or switch to "GSM Only" or "GSM/WCDMA auto" it never lets me again select my network provider.

Dude you already posted the same thing in q&a why did you post here
Sent from viperINC2...DIX

Problem with 3g

Hello guys,
Well a friend of mine sell me this GSM one V, he tell me the phone has already been unlocked an rooted but when i put my sim card i noticed that the phone had no signal so i decide to proove with another rom (my sense RC 2.0) didn´t work, so I tested in the settings and I noticed that when forcing the network mode to 2g the phone gets signal and worked properly but when I try to use 3G or 2G/3G phone signal disappears and I can not navigate or call, so.. Do you have any idea of what could be happend? maybe the 3g radio got damaged?

[Q] 3g and 4g problems

since i unlocked the phone i am having problems with my phone
It refuses to stay connected to 3g networks . it connects but after a while it disconnects and doesn't connect again only( if i reboot the phone it does but drops again)
Forcing WCDMA only doesnt fix it , if i choose GSM/ WCDMA it reconnects to gsm
If i pick LTE signal i can do everything but receiving calls it says its turned off
I tried:
Installing stock firmware ( currently 4.4.2 DTM unbranded) and other custom firmware
Getting new sim card and changing carrier ( its not a carrier issue)
All Apn settings are fine
please advise

ok 4g according to info i saw i cant receive calls , however i want it to stick with 3g witch due to my problem has been impossible
signal bar drops after being full and ban no signal

Anyone?

Signal Drops == not fully compatible modem

Installed cyanogemmod and the issue is gonne used all day no issues

[Q] 3G > 2G switching issue

Hi everyone, I searched for a solution for my problem for a very long time, but found nothing. HOX has many issues with gsm network or signal, but mine HOX has a very strange issue with network mode switching. For example, I'm on 3G now and I set the WCDMA prefered in *#*#4636#*#* menu. When 3G becomes unavailable, HOX tries to switch to 2G network. But instead of switching to 2G, I get "No Sim card" icon and after ~30 second network icon disappears. I have to reboot the phone to recover the network. I made some tests and found, that this is not the hardware fault. I tried to change the radio RIL to any available and there is no difference. For now I don't know what to do, what else can I do... I will really appreciate any suggestions.
I can record a video to get things more understandable.