Develop Bugs

[Q] Signal showing 3g.. then 1x.. then nothing

Hey guys, I just recently updated to sense 3.0 and immediately after my phone will show 3g then it will drop to 1x then soon after it shows no data connection. If I try to open an app that uses data like the market it tells me there is no connection, some apps tell me to check and make sure I am not in airplane mode. Then randomly 3g will kick back on for a bit then it will cycle back through 1x and no data again. I also cant tether anymore either.
I reverted back to the stock rom backup (only root no other changes) and now my signal does the same thing. I have no way to get data now and its super frustration.
Things I have tried..
Calling Verizon (solution is warranty replacement)
*228 (does nothing)
Bringing back a known working backup (does nothing)
Restart/Battery pull (nothing)
Putting it in and out of airplane mode (nothing)
I am currently downloading 2 different roms and the newest radio and I will try and flash those and see if it works.
Any thoughts?
Thanks!

http://forum.xda-developers.com/showthread.php?t=1190292

AgalychnisCallidryas said:
http://forum.xda-developers.com/showthread.php?t=1190292
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Click to collapse
flawless, thank you so much

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.

[CM10] loosing data connection until reboot

Hi,
Usually i have wifi enabled permanently, as i have coverage at home, university and t-mobile hotspots. But my nexus sometimes does not get a working data connection if i disable wifi or come back from flight mode. Icon shows reception and 3G/H/H+ but stays grey. I can't access any internet services like mail,http...
If i reboot the device, everything is fine.
Any ideas ?
Latest (-3days behind max) CM10 with stock kernel, XXLF1 baseband, tmobile germany
P.s.: tried to search with google, found nothing. Currently the nexus is my only internet-capable device, so i am sorry if repost...
Sent from my Galaxy Nexus using xda premium

Try toggling airplane mode?
Beamed from my Grouper.

Same issue here. Get random signal losses and afterwards no data until reboot. I've experienced this with other Roms as well. Toggling the airplane mode sometimes help for data recovering.

Try setting your minimum CPU above 500 Mhz...

How can that change the signal issues?

Maybe toggling wifi helps (sometimes)
un.droid said:
Same issue here. Get random signal losses and afterwards no data until reboot. I've experienced this with other Roms as well. Toggling the airplane mode sometimes help for data recovering.
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I have exactly the same problem on galaxy s. The status bar shows mobile network connection, but the symbol stays grey, and connection is not there. Reboot is the only safe way to solve that. Sometimes toggling airplane mode helps, last time toggling wifi helped.

Changing APN seems to be helpful. Someone that looks good with the current provider.

almost same issue for me...
but there is some weird difference...
I have a GSM Galaxy Nexus latest radio, consistent RIL and latest CM10.
I lost data suddenly while browsing.
I can see blue signal with 3G, start browse and it change to H/H+. No problem until now but, when data returns to 3G, all further requests stay "pending" for a while (phone call is not working in this state!!!!). after a minute.... CRASH, all signal lost. Something like a reset.
even toggling data does not work... I simply have to wait that the phone decides to work again.
I'm from Italy, carrier is Vodafone. Someone with some hint?
thanks!

martin_nrw said:
Changing APN seems to be helpful. Someone that looks good with the current provider.
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It's the correct APN, did autoconf OTA.
Sent from my Nexus 7 using xda premium

un.droid said:
How can that change the signal issues?
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Click to collapse
Because on earlier builds of some AOSP ROMs, the radio had a tendency to go to sleep and not wake up when the frequency dropped too low. The common fix at the time was to use a higher number for the minimum frequency...
Read you must...

I was looking up the answers to this same problem. When I'm staying still my internet is fine but when I'm driving down the road I lose signal. I did a google search for "cm10 losing data connection". This is a "normal problem" it is caused from changing between 3g and LTE 4g. I'm still looking up solutions to this problem.

Losing Data Connection on Idle

Hi all,
Im on Viper Rom 6.2.1 Rom, Elite Lunar Kernel, and latest OTA radio.
My 4G connection is great when connected, I hit the 40s and 50s download speed.
The problem im having is that when the data connection is idle for like 30 seconds, all of a sudden I lose data connection. the 4G LTE logo is still showing but the download/upload activity arrows no longer flashes. It goes back when I turn mobile data off then on again. Then I lose connection again when idle.
What could be the problem?
Thanks

android06 said:
Hi all,
Im on Viper Rom 6.2.1 Rom, Elite Lunar Kernel, and latest OTA radio.
My 4G connection is great when connected, I hit the 40s and 50s download speed.
The problem im having is that when the data connection is idle for like 30 seconds, all of a sudden I lose data connection. the 4G LTE logo is still showing but the download/upload activity arrows no longer flashes. It goes back when I turn mobile data off then on again. Then I lose connection again when idle.
What could be the problem?
Thanks
Click to expand...
Click to collapse
I just had a similar problem recently like this. Turns out i burned out my 4g sim card. Before changing roms or firmware i would suggest going into a VZW store and get a new one. They are free, they dont even look at the phone. Just tell them LTE connectivity isn't working correctly and that the sim card is bad. they will give you another one.

synisterwolf said:
I just had a similar problem recently like this. Turns out i burned out my 4g sim card. Before changing roms or firmware i would suggest going into a VZW store and get a new one. They are free, they dont even look at the phone. Just tell them LTE connectivity isn't working correctly and that the sim card is bad. they will give you another one.
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Thanks. I figure it was probably the sim card. I will try that.

I am having a similar situation. I have data loss after having hotspot on for a little while and any type of reboot is the only remedy (restart of shell, full reboot, adb reboot, etc). I already swapped Sims at the Verizon store, tried different roms, tried flashing different firmware and radio combinations. Any suggestions?
Sent from my HTC6500LVW using XDA Free mobile app

Uzephi said:
I am having a similar situation. I have data loss after having hotspot on for a little while and any type of reboot is the only remedy (restart of shell, full reboot, adb reboot, etc). I already swapped Sims at the Verizon store, tried different roms, tried flashing different firmware and radio combinations. Any suggestions?
Sent from my HTC6500LVW using XDA Free mobile app
Click to expand...
Click to collapse
I too am having similar issues, though it appears more random than associated with using hotspot.
Every few hours, all radio connectivity but Wifi shuts off. I get the no service icon in the status bar. Only a reboot fixes the issue.
Running teamEcliptic Rom 4.4.3 v1.4, kernel: EliteLunar 3.4.10, baseband: 1.13.41.0421, build: 6.06.401.1.
Soff, unlocked, root, etc.
When I have time to spare plan to restore a stock rom (keeping S-off though) to see if that fixes the issue.
Any advice from those more versed in the One M7 would be appreciated!

Loss of mobile data

One thing I have noticed recently is that when my phone is connected to wifi and then disconnects (because I leave my house, for instance), the phone will switch to mobile data, but the data will not work, ie I don't see any data going up or down. This will be even when it clearly shows 4G on the phone and shows full bars.
Turning the mobile data off and on in the quick settings seems to then restore data connectivity, but it's very irritating to pull out my phone in the car and try to pull up Google Maps to no avail.
Anyone else experienced this problem? Is there a permanent fix for it?

Aganar said:
One thing I have noticed recently is that when my phone is connected to wifi and then disconnects (because I leave my house, for instance), the phone will switch to mobile data, but the data will not work, ie I don't see any data going up or down. This will be even when it clearly shows 4G on the phone and shows full bars.
Turning the mobile data off and on in the quick settings seems to then restore data connectivity, but it's very irritating to pull out my phone in the car and try to pull up Google Maps to no avail.
Anyone else experienced this problem? Is there a permanent fix for it?
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Click to collapse
What rom and firmware version are you using?
Sent from my Nexus 6 using Tapatalk

Stock, no root, latest 5.1