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.

LTE driving me insane, lose it after switching to airplane mode.

Hello, I am on a rooted stock Jelly Bean Telus ROM with default recovery (I flashed the rooted stock image through ODIN). Every now and then I will lose LTE even though I am in an LTE area. I try to do the trick of turning on airplane mode and turning it off to get the connection to reset. This actually doesn't do anything. HOWEVER, if I restart the phone, I get LTE back with 20 seconds. Once it restarts it can stay on LTE for a long time. Even when I get a call it'll go to 4G and then switch to LTE once I finish.
But here's the kicker. If after I restart it, get LTE, THEN switch to airplane mode and switch back, it will never, ever connect to LTE again. I have to restart the phone to get it back. I've just done a hard reset and the same problem occurs. This sounds completely ridiculous and I've tried everything. Has anyone heard of anything as absurd as this?

Aftcomet said:
Hello, I am on a rooted stock Jelly Bean Telus ROM with default recovery (I flashed the rooted stock image through ODIN). Every now and then I will lose LTE even though I am in an LTE area. I try to do the trick of turning on airplane mode and turning it off to get the connection to reset. This actually doesn't do anything. HOWEVER, if I restart the phone, I get LTE back with 20 seconds. Once it restarts it can stay on LTE for a long time. Even when I get a call it'll go to 4G and then switch to LTE once I finish.
But here's the kicker. If after I restart it, get LTE, THEN switch to airplane mode and switch back, it will never, ever connect to LTE again. I have to restart the phone to get it back. I've just done a hard reset and the same problem occurs. This sounds completely ridiculous and I've tried everything. Has anyone heard of anything as absurd as this?
Click to expand...
Click to collapse
Had the exact same problem with a Telus rom, I dont suppose you're on ATT by any chance?. Mine wouldn't connect to the mobile data network when coming off a wifi connection and would just hang in limbo until i switch mobile data on and off. Dumped it and went to a ATT based rom, problem solved. One thing I noticed is that the APN options with the telus rom are different than ATT roms, the apn type in particular

Ask in Q&A or the sticky thread for LTE
Thanks

[Q] Can't remove "Display Result rooted", even after flashing stock

Hey guys,
So my phone recently (after I unlocked it, played around with T-Mobile apn settings, enabled network mode chooser, and switched the modes around [subsequently removing that]) started dropping my LTE signal, and diverting to 4G. The 4G is still slower than my brother's HTC One's 4G (both on ATT), and the LTE doesn't even work. I can turn on airplane mode, then turn off, and get LTE, but it is freakishly slow, like Edge. So I was going to unroot, flash stock, and go to ATT for help. But, after I flashed stock, I dialed 3845#*980# (hidden menu), and at the bottom under LG RCT -> Display Result, it still says that I'm rooted. Does this mean that my flashing didn't work? Or does that mean we just can't reset the root counter?
I went to stock using this guide btw: http://forum.xda-developers.com/showthread.php?t=2302660&highlight=download+fail. Any help is appreciated!
Thanks!

killerskullz said:
Hey guys,
So my phone recently (after I unlocked it, played around with T-Mobile apn settings, enabled network mode chooser, and switched the modes around [subsequently removing that]) started dropping my LTE signal, and diverting to 4G. The 4G is still slower than my brother's HTC One's 4G (both on ATT), and the LTE doesn't even work. I can turn on airplane mode, then turn off, and get LTE, but it is freakishly slow, like Edge. So I was going to unroot, flash stock, and go to ATT for help. But, after I flashed stock, I dialed 3845#*980# (hidden menu), and at the bottom under LG RCT -> Display Result, it still says that I'm rooted. Does this mean that my flashing didn't work? Or does that mean we just can't reset the root counter?
I went to stock using this guide btw: http://forum.xda-developers.com/showthread.php?t=2302660&highlight=download+fail. Any help is appreciated!
Thanks!
Click to expand...
Click to collapse
i have the same problem on it, how can i fix this issue??
Cause i would like to send the phone back to LG and let them do the health check...
Please help

Having very frustrating data issues.

Every since I did a factory reset last month, my data has been shoddy/non existent. I'm on the Verizon Network through Straight Talk. The weird thing is, when I pull down the quick toggles menu I can see that I have an LTE connection, but when I go back and look at the status bar it shows no data connection whatsoever. Also I can't connect to the internet. Straight Talk claims that the apn doesn't need to be messed with for CDMA phones.
Any idea what's going on here?
The phone is bone stock, no root, locked bootloader. I'm on build MTC19V.

DavidWolfe said:
Every since I did a factory reset last month, my data has been shoddy/non existent. I'm on the Verizon Network through Straight Talk. The weird thing is, when I pull down the quick toggles menu I can see that I have an LTE connection, but when I go back and look at the status bar it shows no data connection whatsoever. Also I can't connect to the internet. Straight Talk claims that the apn doesn't need to be messed with for CDMA phones.
Any idea what's going on here?
The phone is bone stock, no root, locked bootloader. I'm on build MTC19V.
Click to expand...
Click to collapse
I would compare the apns anyway
https://www.straighttalk.com/wps/portal/home/support/apn
http://apn-settings.com/us/straight-talk-apn-settings/

DavidWolfe said:
Every since I did a factory reset last month, my data has been shoddy/non existent. I'm on the Verizon Network through Straight Talk. The weird thing is, when I pull down the quick toggles menu I can see that I have an LTE connection, but when I go back and look at the status bar it shows no data connection whatsoever. Also I can't connect to the internet. Straight Talk claims that the apn doesn't need to be messed with for CDMA phones.
Any idea what's going on here?
The phone is bone stock, no root, locked bootloader. I'm on build MTC19V.
Click to expand...
Click to collapse
Try doing a network reset.
1- Turn off phone.
2- Remove sim card. Turn on the phone.
3- Open your device's Settings. Under "Personal," tap Backup & reset.Tap Network Settings Reset button.
4- Reboot phone, and reconnect your Wi-Fi network. Make sure it goes online by loading a webpage or something.
5- Turn off phone and put the sim back in and turn on the phone.

Wifi disabled issue.

Ever since I restore back to Sprint stock 5.0.2 ZVI my wifi keeps going into disabled mode. Once Wifi is enable it will go into disable status after 30 second to 1 minute. Whats odd is that if i enable airplane mode then i do not have this issue. Data is disabled or else i keep getting message about no lte connection. Factory reset been perform already and same issue.
It seems to only do this after I active the phone on Sprint network.