Database Users

[Q] Google Nexus 4 Loses Network Connectivity

Hey guys,
I recently got a Google Nexus 4 and it seems to be losing the network connectivity frequently.
It keeps saying No Service / Emergency Calls Only.
I haven't made any changes to the phone yet and its still running on Stock Android (Android 4.2.2)
I read few other threads on this forum and came to know that there are others who are facing this issue
and one of the solutions is to reboot the phone. However, doing this frequently doesn't seem to be feasible.
I'm in roaming. Could that in any ways be affecting the network signals.
Please let me know if there are any other solutions as I would like to avoid using a custom ROM/ CM as of now.
Thanks in advance

It's a known nexus 4 issue. It has been reported. Let's hope google modifies that for newer releases if it's a software issue and non hardware...
Cheers!

luiseteyo said:
It's a known nexus 4 issue. It has been reported. Let's hope google modifies that for newer releases if it's a software issue and non hardware...
Cheers!
Click to expand...
Click to collapse
So till it gets fixed, rebooting the phone is the only solution ? Would frequent reboots (say every few hours) do any kind of damage to the device ?

luiseteyo said:
It's a known nexus 4 issue. It has been reported. Let's hope google modifies that for newer releases if it's a software issue and non hardware...
Cheers!
Click to expand...
Click to collapse
Not totally true....
I replaced my antenna section and this solved my problem.
So it can be hardware related for some.....
Others solved it with a new sim card or flashing the latest baseband. But its a known and annoying problem.
I tried everything and the last option was replacing the antenna section. I work in a mobile repair centre so it was no problem for me.
a pigeon delivered this message.... ** your welcome **

gohan040 said:
Not totally true....
I replaced my antenna section and this solved my problem.
So it can be hardware related for some.....
Others solved it with a new sim card or flashing the latest baseband. But its a known and annoying problem.
I tried everything and the last option was replacing the antenna section. I work in a mobile repair centre so it was no problem for me.
a pigeon delivered this message.... ** your welcome **
Click to expand...
Click to collapse
I reckon it could be due to the sim card, cause the card is kinda old (4+ yrs). Don't think its an issue with the antenna since it works fine in the home network. Only while in roaming it keeps flipping a lot.
Will try and get a replacement SIM for this. Can you point me to some tutorials/guides for flashing to the latest baseband.

Some can solve their problem by enabling and disabling airplane mode instead of a full reboot..worth trying.
sent from my N7 :smokin:

Gigabitex2 said:
Some can solve their problem by enabling and disabling airplane mode instead of a full reboot..worth trying.
sent from my N7 :smokin:
Click to expand...
Click to collapse
Have tried that. Isn't as effective as the reboot is. Hope Google fixes this soon

Hey guys
Just curious, could a factory reset help alleviate this issue ?

I have that problem, when I dont haVE roaming enabled. Enable all roaming and it should be good

Recently faced this issue.
And how can this be a hardware problem when not all are facing it? If minority is facing this issue than I doubt it's a hardware fault.

I noticed when I am undervolted past -150 I tend to lose service frequently.
Sent from my Nexus 4 using xda premium

I have that problem, its very random. Lately though everything works fine, voice, ect. My data though is another story. I have the custom APN in, and my data goes from 8-9mb down to less then 1mb, then no connection back to 1-2mb, back to 8-9mb. Bizarre to me. I work in IT, so im on wifi all day every day, its not a huge deal just really annoying. Most of the time though, just using airplane mode fixes any connection problems i have.

I have tried the Airplane Mode. Doesn't help at all.
And even I have noticed that if the signal strength goes beyond -150dBm it does lose the signal. Happens more while in roaming.
No solutions other than reboots so far.

Flash the 27 modem it fixes a lot of this
Sent from my Nexus 7 using xda premium

I have read on this forum that there are issues with Android 4.2.2 and an older version of the baseband radio (like .33 or .27)

Nexus 4 Network/Sim Issue
riptide05 said:
I have read on this forum that there are issues with Android 4.2.2 and an older version of the baseband radio (like .33 or .27)
Click to expand...
Click to collapse
I've had this issue since Sunday morning. No signal whatsoever. It detects a sim card even when there is none. My current micro sim is working and tested in other phones. Pls someone fix this... Duh Google/LG it's your responsibilty. Taking my Nexus 4 for repair tomorrow.
I just bought it a week back!! Very upset...

riptide05 said:
Hey guys,
I recently got a Google Nexus 4 and it seems to be losing the network connectivity frequently.
It keeps saying No Service / Emergency Calls Only.
I haven't made any changes to the phone yet and its still running on Stock Android (Android 4.2.2)
I read few other threads on this forum and came to know that there are others who are facing this issue
and one of the solutions is to reboot the phone. However, doing this frequently doesn't seem to be feasible.
I'm in roaming. Could that in any ways be affecting the network signals.
Please let me know if there are any other solutions as I would like to avoid using a custom ROM/ CM as of now.
Thanks in advance
Click to expand...
Click to collapse
Try Matr1x kernel. I also had same problem. But now it is solved with Matr1x kernel V10.

It still didn't help... I just got a refund for my phone...
Sent from my Nexus 4 using XDA Premium 4 mobile app

Flashing 03.61 radio on NRD90U

I'm New to the forums here everyone.
Greetings!
I'm running NRD90U but I'm experiencing some issues with the recent radio update that came with nougat on Verizon. I've searched everywhere on the xda forums and found suggestions to others experiencing similar issues (simultaneous voice and data). With the 03.61 radio, everything worked just fine whereas with 03.72 I have to toggle airplane mode after every reboot in order to have simultaneous voice and data. I have performed all of the suggested things to no avail. HD voice is enabled on my line and I've tried taking it off and putting it back on. Enhanced LTE is set to on and I've toggled that. I've factory data reset. I've wiped cache. I've Tested SIM in another Verizon device and it works fine. I've Put another Verizon SIM in my device and still have the issue. I even gotten a new replacement device. I've sideloaded OTAs. I've flashed factory images. I've literally tried everything suggested here.
All said, I'm wondering if it's possible to flash the older 03.61 radio while keeping everything otherwise the same on my phone with stock Nougat-NRD90U.
I would appreciate input.
Thanks.

[email protected] said:
I'm New to the forums here everyone.
Greetings!
I'm running NRD90U but I'm experiencing some issues with the recent radio update that came with nougat on Verizon. I've searched everywhere on the xda forums and found suggestions to others experiencing similar issues (simultaneous voice and data). With the 03.61 radio, everything worked just fine whereas with 03.72 I have to toggle airplane mode after every reboot in order to have simultaneous voice and data. I have performed all of the suggested things to no avail. HD voice is enabled on my line and I've tried taking it off and putting it back on. Enhanced LTE is set to on and I've toggled that. I've factory data reset. I've wiped cache. I've Tested SIM in another Verizon device and it works fine. I've Put another Verizon SIM in my device and still have the issue. I even gotten a new replacement device. I've sideloaded OTAs. I've flashed factory images. I've literally tried everything suggested here.
All said, I'm wondering if it's possible to flash the older 03.61 radio while keeping everything otherwise the same on my phone with stock Nougat-NRD90U.
I would appreciate input.
Thanks.
Click to expand...
Click to collapse
If you are bootloader unlocked, you can fastboot flash any radio.img you want. If you are not bootloader unlocked, no you can't. The radio.img is universal btw, not specific to a carrier.
Edit: the guide below will help you unlock the bootloader and learn fastboot if you are unfamiliar.
http://forum.xda-developers.com/showthread.php?t=3206928
Sent from my Nexus 5X using Tapatalk

Thanks. I will do that. I appreciate the help.

Is this a problem for other Verizon users too? If so, I just won't upgrade the radio firmware on mine either.

I would highly suspect that the problem is for everybody on Verizon especially since I replaced my device and did all this SIM card changes and things. It is very unnoticeable in that the only time you experience it or see it is if you are making a call on the new nougat radio 03.72, you will see the LTE icon disappear as soon as you make your call, regardless of whether you are on an 'HD call' or not. If you are on the older radio 03.61 that is on marshmallow, then you never experience that problem, ever, ever. Everything is perfect with that "radio." I've done a lot of testing on it, as I said, up to replacing my device, all to no avail. unless using 03.61 which is again, perfect. I wouldn't change if you can avoid it. If you do get the nougat radio though (03.72), it's a nuisance because after the majority of reboots overall, you will come up with everything normal-'looking' with the LTE icon there but when trying to make a call it will disappear and you'll have an exclamation point there until you hang up from the call and LTE comes right back. (unless you're on wifi off course in which case none of this apples). The solution if you find yourself with the 03.72 nougat radio with this happening, is to toggle airplane mode and then you're good to go until the next time you have to reboot. I always check afterwards by calling voicemail to make sure the LTE icon stays while on the call. It will disappear immediately.
I'm going to assume there is some sort of an "initial-boot-handshake" that's not taking place correctly, but DOES communicate correctly coming out of airplane mode when the device is already booted.
Regards
Edit: This may be a regional VZW issue and not a phone or baseband issue.

Verizon has had issues where I live for more than a week.
I live in Northern Ca and they just sorted things out.
Funny, I flashed the Nougat radio on top of 6.x to see if my issue was fixed.
It's not the radio. Mine is finally stable. Not sure what VZW did.

tech_head
Everything was working fine on mine with the marshmallow radio. I didn't have an issue until I updated to nougat.
Hearing what happened with yours makes me think that it's a regional Verizon thing. Hopefully they will fix soon. I'm not holding my breath because it's been about a month here in Central Kentucky
I'm glad yours is working now man.
Cheers!

I'm having a similar problem for the last couple days after flashing the latest update. I may try stepping back to the older radio to see if that fixes my problem. I just hope it doesn't affect my bluetooth, as that's finally working fine again.

heffe2001 said:
I'm having a similar problem for the last couple days after flashing the latest update. I may try stepping back to the older radio to see if that fixes my problem. I just hope it doesn't affect my bluetooth, as that's finally working fine again.
Click to expand...
Click to collapse
Best of luck. Let us know how it goes if you get the chance. Thanks!

Holy crap, I thought it was just me! I did the exact same things (minus an RMA) as the OP to fix the issue with no luck, even downgrading to MTC20F and upgrading to MTC20L and finally Nougat, just to make sure something wasn't getting jacked in the flashing process. I spent an hour on the phone last night w/ a tier 2 tech guys from Verizon and the only issue he could see was that my PRL had an update for my SIM which should happen automatically. He pushed it through from their end but it didn't fix the issue. Normally I don't care about browsing/downloading when I'm on the phone since I hate talking on the phone and get off as soon as possible but it causes another problem which is not acceptable: if I am browsing chrome or doing anything with data, incoming calls go straight to voicemail. Tried switching the phone from "global" to "LTE/CDMA" with no luck-a reboot always kills simultaneous voice and data. I can rule out this being a Verizon issue on my end as when I flashed the MM images to update via OTA this morning, all worked perfectly fine.
Edit: I have called multiple people in my area that are on VZW after having them reboot their phones and all of them maintained simultaneous voice and data. I think it is safe to state that this issue is software/device specific.

bjoostema said:
Holy crap, I thought it was just me! I did the exact same things (minus an RMA) as the OP to fix the issue with no luck, even downgrading to MTC20F and upgrading to MTC20L and finally Nougat, just to make sure something wasn't getting jacked in the flashing process. I spent an hour on the phone last night w/ a tier 2 tech guys from Verizon and the only issue he could see was that my PRL had an update for my SIM which should happen automatically. He pushed it through from their end but it didn't fix the issue. Normally I don't care about browsing/downloading when I'm on the phone since I hate talking on the phone and get off as soon as possible but it causes another problem which is not acceptable: if I am browsing chrome or doing anything with data, incoming calls go straight to voicemail. Tried switching the phone from "global" to "LTE/CDMA" with no luck-a reboot always kills simultaneous voice and data. I can rule out this being a Verizon issue on my end as when I flashed the MM images to update via OTA this morning, all worked perfectly fine.
Edit: I have called multiple people in my area that are on VZW after having them reboot their phones and all of them maintained simultaneous voice and data. I think it is safe to state that this issue is software/device specific.
Click to expand...
Click to collapse
I have done and agree with what you said - other devices(non NEXUS 6p) work fine and 6p works fine on marshmallow. However, tech_head posted above that his I'd all good now and that it was a Verizon issue. I'm not sure where you live but based on tech_head's post, I can't rule out VZW as the problem. One thing is for sure it is an issue here in Central Kentucky on the two NEXUS 6ps that I have had and tried EVERYTHING, like you, on both of them to no avail without marshmallow radio. I haven't tried flashing marshmallow radio on top of nougat. I may just wait and see if VZW or Google work something out to fix it soon with a possible update. Not holding my breath but I believe it will eventually get fixed in the future, OFFICIALLY.
Thanks man.
I appreciate your input.

**

As mentioned earlier in the thread, the radio is independent of the OS version, so why not take 1 or 2 minutes and flash an earlier radio? There is a radio / modem repository thread on XDA with all versions you can just grab and try out. Literally takes less than a minute and if you don't like the results, then just flash it right back. I use Fastboot, but TWRP, FF, NRT, etc. all work equally well. You may also post what you find under "Phone Settings" when typing " *#*#4636#*#* " into the dialer. Report back on your findings.

Here are the screenshot links for my phone settings.
Thanks
OP
http://forum.xda-developers.com/attachment.php?attachmentid=3882483&stc=1&d=1474502181
http://forum.xda-developers.com/attachment.php?attachmentid=3882482&stc=1&d=1474502181

tech_head said:
Verizon has had issues where I live for more than a week.
I live in Northern Ca and they just sorted things out.
Funny, I flashed the Nougat radio on top of 6.x to see if my issue was fixed.
It's not the radio. Mine is finally stable. Not sure what VZW did.
Click to expand...
Click to collapse
Are You running stock nougat now. If so, what is your simultaneous voice and data status with respect to my post.
Thanks
OP

[email protected] said:
I have done and agree with what you said - other devices(non NEXUS 6p) work fine and 6p works fine on marshmallow. However, tech_head posted above that his I'd all good now and that it was a Verizon issue. I'm not sure where you live but based on tech_head's post, I can't rule out VZW as the problem. One thing is for sure it is an issue here in Central Kentucky on the two NEXUS 6ps that I have had and tried EVERYTHING, like you, on both of them to no avail without marshmallow radio. I haven't tried flashing marshmallow radio on top of nougat. I may just wait and see if VZW or Google work something out to fix it soon with a possible update. Not holding my breath but I believe it will eventually get fixed in the future, OFFICIALLY.
Thanks man.
I appreciate your input.
Click to expand...
Click to collapse
No problem bud! I haven't flashed another radio yet either. I will report back after I test a few more things.

Has anyone determined the cause of the problem? Was it the radio firmware after all? There seem to be conflicting answers here.

chaoticyeshua said:
Has anyone determined the cause of the problem? Was it the radio firmware after all? There seem to be conflicting answers here.
Click to expand...
Click to collapse
It is still kind of up in the air. What I do know is that there is a software incompatibility somewhere within nougat here in Lexington, KY, at least. I assume it's the radio software but I'm not certain. I'm not bootloader unlocked at this point so I haven't yet tried to flash marshmallow radio on to stock nougat. I will probably try this in a few days when I have the time to deal with the factory reset it involves. Please refer back to the original post for questions about my reasoning.
It's quite interesting, the problem, as everything with stock nougat - voice and data-wise, works just like marshmallow after I toggle airplane mode after reboot. With marshmallow, it just worked. Very weird. But given I can just toggle airplane mode 1 time for every time I boot, it's just a slight nuisance. Once I toggle airplane mode, everything is good just like marshmallow, as if nothing was ever wrong. It could be something about the boot sequence. It's very interesting. I'm open to ideas at this point.
Thanks.

My 2¢
When i was on 6.0.1 didn't have and issue with radio. i flashed the 7.0 radio while still on 6.0.1, still no issues.
Then i flashed 7.0 OS and that's when the issue started and it was only affecting upload speed download was great. Then i flashed the last radio from 6.0.1 and the issue went away.
P.S.
the data going off during a call is VZW. i had to call to have them fix this even before 7.0 they dont like the fact that we are using a non vzw branded cell.
I'm back on 6.0.1, never signed on to be a beta tester for 7.0?. These days its about profit and quantity and the hell with quality
Sent from my Nexus 6P using XDA-Developers mobile app

spjetrovic said:
My 2¢
When i was on 6.0.1 didn't have and issue with radio. i flashed the 7.0 radio while still on 6.0.1, still no issues.
Then i flashed 7.0 OS and that's when the issue started and it was only affecting upload speed download was great. Then i flashed the last radio from 6.0.1 and the issue went away.
P.S.
the data going off during a call is VZW. i had to call to have them fix this even before 7.0 they dont like the fact that we are using a non vzw branded cell.
I'm back on 6.0.1, never signed on to be a beta tester for 7.0?. These days its about profit and quantity and the hell with quality
Sent from my Nexus 6P using XDA-Developers mobile app
Click to expand...
Click to collapse
I appreciate your input. It doesn't sound like our issues are quite the same. I'm not sure though.
What is it that Verizon did for you. That may be the answer to my problems.
Thanks. Best Regsrds.

Intermittent carrier signal drops.

My 6p has worked well for some time, but for a while now it will just constantly drop carrier signal, it seems to do it more when an app is sending or receiving data. I thought maybe it was purenexus or the ex kernel, so I updated both to the current releases, there are no other mods besides root. I've never ran stock on it and the issue just started out of nowhere one day. It will usually pickup signal when it drops. Sometimes to speed it along I'll put it in airplane and then back. Sometimes that doesn't work and a reboot is needed. It's also on the latest vendor image because AFAIK that includes the modem radio. I'm kinda out of ideas, I'd like to avoid dealing with the carrier if I don't need to (t-mobile us)
Also, when on WiFi I noticed that cellular never seems to drop.

Having the same problem. It started recently and I'm not sure why. I'm on Cricket.

gr546jmn5 said:
My 6p has worked well for some time, but for a while now it will just constantly drop carrier signal, it seems to do it more when an app is sending or receiving data. I thought maybe it was purenexus or the ex kernel, so I updated both to the current releases, there are no other mods besides root. I've never ran stock on it and the issue just started out of nowhere one day. It will usually pickup signal when it drops. Sometimes to speed it along I'll put it in airplane and then back. Sometimes that doesn't work and a reboot is needed. It's also on the latest vendor image because AFAIK that includes the modem radio. I'm kinda out of ideas, I'd like to avoid dealing with the carrier if I don't need to (t-mobile us) Also, when on WiFi I noticed that cellular never seems to drop.
Click to expand...
Click to collapse
Several threads on the same dropping, cycling, having to reboot issue affecting T-Mo. Fairly new one here. You can also find a huge whinge fest thread here where every T-Mo user has tried every radio going back a year. If I were affected, I would make sure the issue was present on a bone stock device, then I would find a friend/relative and switch to a different carrier SIM, preferably a non-MVNO to see if it was resolved. It shouldn't take more than a few hours. At that point you're going to know whether it is your carrier or your device. If it is the carrier, provide them this information and ask for new SIM to be provisioned. They should also be able to look up your usage history and maybe find a solution for you. The beauty of owning a carrier unlocked phone is you can always get another carrier. If all this tells you it is a hardware issue, then you have already collected the evidence needed for a warranty claim.

Constant WiFi Drops With all firmware, roms, even on stock

Hey guys,
So Ive tried firmware 3.5.8, 3.5.6, 3.1.0 with either 7.1.1 custom roms or also stock. All combinations still result in constant wifi drops, not network drops anymore since I used mini gapps to avoid google contact.
Any advice on how I can fix this or do you think it is a hardware issue?

talha746 said:
Hey guys,
So Ive tried firmware 3.5.8, 3.5.6, 3.1.0 with either 7.1.1 custom roms or also stock. All combinations still result in constant wifi drops, not network drops anymore since I used mini gapps to avoid google contact.
Any advice on how I can fix this or do you think it is a hardware issue?
Click to expand...
Click to collapse
This is a real issue and it does exist even on 3.6.0 firmware with 7.1.2 custom ROMs
Unfortunately nothing can be done unless we have all of the blobs which oneplus will never release anyways

anupritaisno1 said:
This is a real issue and it does exist even on 3.6.0 firmware with 7.1.2 custom ROMs
Unfortunately nothing can be done unless we have all of the blobs which oneplus will never release anyways
Click to expand...
Click to collapse
This makes my phone pretty much unusable though, like it happens every minute or two. You are saying its the same like that for everyone? And there isnt a solution?

talha746 said:
This makes my phone pretty much unusable though, like it happens every minute or two. You are saying its the same like that for everyone? And there isnt a solution?
Click to expand...
Click to collapse
Most people including me don't even notice this. So far I have only been actually able to catch this behavior in logs and right now Google connectivity services seems to be the culprit however removing that app doesn't fix the drops either
---------- Post added at 11:18 ---------- Previous post was at 11:16 ----------
If you have an old router you'll be able to notice the drops more easily (what is happening to you right now). People with newer routers seem to not be affected by the problem (or at least they claim not to be, they actually are and aren't noticing it)

anupritaisno1 said:
Most people including me don't even notice this. So far I have only been actually able to catch this behavior in logs and right now Google connectivity services seems to be the culprit however removing that app doesn't fix the drops either
---------- Post added at 11:18 ---------- Previous post was at 11:16 ----------
If you have an old router you'll be able to notice the drops more easily (what is happening to you right now). People with newer routers seem to not be affected by the problem (or at least they claim not to be, they actually are and aren't noticing it)
Click to expand...
Click to collapse
Thanks for your insight, really hoping someone has a solution to this. My router is pretty new and all my other devices connect perfectly.

talha746 said:
Thanks for your insight, really hoping someone has a solution to this. My router is pretty new and all my other devices connect perfectly.
Click to expand...
Click to collapse
There isn't
You can keep looking and never find the solution
We are missing some blobs only oneplus could provide, which could only happen if N drops for op2
Which definitely won't happen

Radio problems on T-Mobile

If I go with the 6P into an area where TMobile has poor signal and it switches to Edge, after a while it seems to lose signal completely and it never gets it back even when it goes back to an area with good LTE coverage. The only way to get the cell radio to work again is to reboot the phone.
There is an issue reported but no progress on a solution:
https://issuetracker.google.com/issues/37132663
I tried radios 3.72, 3.75 and 3.81, all have the same problem for me.
Trying to figure out how widespread the issue is and whether anyone found any workarounds (short of rebooting when it happens).

I'm on radio 3.84 and still experience issues from time to time

sirxdroid said:
If I go with the 6P into an area where TMobile has poor signal and it switches to Edge, after a while it seems to lose signal completely and it never gets it back even when it goes back to an area with good LTE coverage. The only way to get the cell radio to work again is to reboot the phone.
There is an issue reported but no progress on a solution:
https://issuetracker.google.com/issues/37132663
I tried radios 3.72, 3.75 and 3.81, all have the same problem for me.
Trying to figure out how widespread the issue is and whether anyone found any workarounds (short of rebooting when it happens).
Click to expand...
Click to collapse
I had the same problem with T-Mobile But flashing the radio 3.84 fixed it for me.:good:

Not ready to move to Oreo, does 3.84 work with the latest stock N? Worth giving it a try I suppose, though reports on it are mixed, some still have problems while others haven't experienced any yet.

If you are on radio 3.84, can you please post whether you're using Oreo or still N? Curious to see whether the OS or perhaps vendor makes a difference or it's purely a radio issue.

sirxdroid said:
If you are on radio 3.84, can you please post whether you're using Oreo or still N? Curious to see whether the OS or perhaps vendor makes a difference or it's purely a radio issue.
Click to expand...
Click to collapse
I'm on Nougat and Radio 3.84 and works great on T-Mobile usa for me. Radios are backwards compatible for the most part....

early radio version
was it 3.64 or 3.68 that was best radio? after that I have had issues with all radios ever since, even with 3.84 flash. Wonder if it would be ok to flash back to one of those...

3.85 seems to be better than other 3.8x versions. When a version doesn't work well for me I tend to go back to 3.72