After updating to Android 5.0 (official release), my nexus 4 is having some problems with cellular networks. Phone works fine until suddenly it loses the cellular network, network signals disappear and only gets it back after rebooting.
So far I have tried
1. Tried to turn off the radio and then turn it on
2. Changing the Sim Card
3. Factory reset
4. re-flashing factory images
5. Turning the airplane mode on & off
6. tried different network setting (GSM only, WCDMA preferred, GSM/WCDMA auto etc)
Nothing seems to solve the problem. The only way to get the signals back is to reboot. Phone was working fine before updating to Android 5.0. Is there anything else I could try to fix this issue? Any help regarding this problem will be highly appreciated.
Related
My AT&T S4 is having wifi issues, it won't show all the access points.
Device Version: JSS15J.I337UCUEMJ9 (AT&T)
Base Band: I337UCUMJ9
Non-Rooted
Stock
Steps Done:
-Wiped Cache and Factory Reset from Recovery Menu
-went into advance settings within WiFi and turned off (unchecked) "Auto network Switch"
-Reset
-disabled AT&T Smart Wifi app within Applications Settings (going through Settings>More>Application Manager)
-Reset
-Dialed *#0011# and turned off WiFi Power Saving
-Reset
I'm not adverse to flashing or rooting, have done it in the past and know my way around "Odin" and "ADB" so very open to any suggestions no matter how invasive they are.
***It's not a DLink router issue, since I'm using NetGear and I keep only my B/G/N radios on***
***Every other Android device connects to internet just fine***
***Bluetooth is working without any issue***
***Data is also working without any issue***
So my lte/cdma mode doesnt seem to work at all, i know i have 4g but when i turn on my phone it says mobile network (under settings) connecting and then the mobile network type keeps flashing from lte to unknown, however if i i switch to cdma mode 3g works fine so does anyone know a fix to lte ? i already reflashed with odin and also restored and did all that (sm-g900r4) i also attempted to do a nanroid restore but that didnt fix it either :/
I just upgraded to Lollipop and lost LTE. I have EHRPD 3G only.
I am rooted and on Extreme Syndicate 5.0 Lollipop.
I have tried the usual items found in Google:
1) Removed SIM, rebooted. Put back SIM
2) Checked LTE settings under mobile networks (Global, also tried CDMA/ LTE)
3) Checked APN (vzwinternet, internet and VZWINTERNET)
4) Tried basic toggling of airplane mode, data, etc.
I am trying to avoid going back to kitkat stock and working back to lollipop.
I am hearing that a new SIM may be required but I have not gone that route yet and would like to resolve right away rather than taking a day for a SIM to ship to me.
Any help is appreciated.
Have you factory reset the phone after the update? It would be something to try.
JerseyFF said:
Have you factory reset the phone after the update? It would be something to try.
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I tried numerous things. Right now my LTE has come back however things are kind of strange when I reboot, but at least ultimately end up working. I have a new SIM to throw in there when I lose things entirely again. I'm now sort of convinced that the problem is the SIM as I have tried a few different ROM's including stock unrooted KitKat and data always acts the same. I'm now on 5.0 and it's again the same.
Hello, after upgrade to 5.0 my s5 verizon, i lost 4g, but on 4.4 it worked fine in russia
Hello guys, i have some weird problem with my phone. So, data connection on my phone cant work like usually. i have this problem since i flash wrong version of miui. My device is HM2014817, but i make some mistake and flash HM2014813 version. That's why my phone cant get signal.
But the main problem's not that. i flash true rom through MiFlash, but SIM 1 cant connect to data. When i switch data to SIM 2, its just can connect to Edge. I try to switch data to SIM 1 again and change Preferred Network of SIM 1 to 2G. Switch it back to SIM 2, and change Preferred network of SIM 2 to 3G. But, when i switch my SIM 2 Preferred network to 3G, its come back to 2G again and the preferred network setting force close.
I try to change Preferred network though *#*#4636#*#*. But same problem still exist. How can i fix this problem? Please help!
NOTE : DATA WORK FLAWLESSLY ON OTHER ANDROID VERSION ( L / MM / N )
Hi. I'm on this ROM and it's stable except sometimes the SIM card drops and I have no signal. This happens when I boot and sometimes during regular phone operation. I tried to change my network status to LTE only as suggest by some users but then my phone says I have no network connection. I also have reset preferences for Wifi, Bluetooth, Network in settings and reset the SIM card by taking it out and putting it back in with and restarting the phone. Is there a fix to this? Im on the latest baseband G900VVZW2DQL1 on Verizon.