Data Issues after upgrading rom and radios - Nexus 6 Q&A, Help & Troubleshooting

I recently switched from an older version of Pure Nexus to Lineage OS. Lineage recommended flashing the latest radios which I did before upgrading, but now I'm having issues. At first I didn't have any LTE connection, 3G would work if I was in an area that was typically 3G only. I figured out that the APN settings were set to one that said "CDMA 0" and didn't appear to have any settings. I changed that to Sprint Internet n.ispsn and LTE comes on. However, this doesn't stay set and keeps going back to CDMA 0 and yesterday, while I was driving all of my cell service, kept dropping out for 5-30 seconds at a time before coming back on. I'm not sure if this is a ROM issue or a radio issue since I flash those too. Anyone know?

jst07 said:
I recently switched from an older version of Pure Nexus to Lineage OS. Lineage recommended flashing the latest radios which I did before upgrading, but now I'm having issues. At first I didn't have any LTE connection, 3G would work if I was in an area that was typically 3G only. I figured out that the APN settings were set to one that said "CDMA 0" and didn't appear to have any settings. I changed that to Sprint Internet n.ispsn and LTE comes on. However, this doesn't stay set and keeps going back to CDMA 0 and yesterday, while I was driving all of my cell service, kept dropping out for 5-30 seconds at a time before coming back on. I'm not sure if this is a ROM issue or a radio issue since I flash those too. Anyone know?
Click to expand...
Click to collapse
I have also had some issues with LTE after flashing the latest radio but no problems with the APN settings. I haven't done it yet since the June update should be out soon but if the update doesn't have a new version of the radio I'm going to try flashing an older version to see if that helps.

You can always roll back the radio. Just flash an older one and test it. I haven't been on cdma for a while but if you can update the PRL still you might get better reception.
Sent from my Glade[emoji768] Plugins

To update this for anyone having a similar issue, I went to the APN settings and did Reset to Default. Seems to have fixed it.

Related

No 3G since FRF83

Any solution?
Only GPRS/EDGE does work, if 3G is available, it disconnects automatically until 3G isn't available.
Solution: Set to 2G-Only :-(
Anyone has the same problem?
I didn't have this problem with FRF 72.
Provider: Sunrise Switzerland
Radio: 32.36.00.28U_4.06.00.12_7
Have you tried going into your phone settings from *#*#4636#*#* and setting it to wcdma only? I did that on mine not too long ago and no more dropping to edge for me!
-------------------------------------
Sent via the XDA Tapatalk App
andi86 said:
Any solution?
Only GPRS/EDGE does work, if 3G is available, it disconnects automatically until 3G isn't available.
Solution: Set to 2G-Only :-(
Anyone has the same problem?
I didn't have this problem with FRF 72.
Provider: Sunrise Switzerland
Radio: 32.36.00.28U_4.06.00.12_7
Click to expand...
Click to collapse
does it lose complete signal? or does it show 3g still but just not doing anything?
Mine was working at first after flash. Then at about 2am it just kept trying to load then times out. Still shows 3g but just dont do anything. Im hoping its just tmobile messing with their towers... I dont see why it would work at first then not now..
The problem is, that i can only have a internet connection, when the phone is logged in into a gsm or edge network.
as soon as wcdma is available, the phone disconnects from the internet.
the signal is always available, but it looses the internet connection when it changes to 3G mode.
when the phone changes from 2G->3G mode, i see for 1s the 3G icon and then no icon will bi there.
when it changes back from 3G->2G, the EDGE/GPRS icon is visible again.
andi86 said:
the signal is always available, but it looses the internet connection when it changes to 3G mode.
when the phone changes from 2G->3G mode, i see for 1s the 3G icon and then no icon will bi there.
when it changes back from 3G->2G, the EDGE/GPRS icon is visible again.
Click to expand...
Click to collapse
ok thanks for clarification. My problem is different. I think related to phone company.. I still show the 3g signal and even have bars, but the pages dont load and eventually gives me the check your service and try again alert....
So Im hoping soon its working again for me... And I hope you as well figure it out.....
Thank you Good luck!
Had the same issue after update, did *#*#4636#*#* and noticed I was set to GSM only. Set it to WCDMA preferred and now it's good.
Thank you very much, thats the solution!!
Andi
ezhangin said:
Had the same issue after update, did *#*#4636#*#* and noticed I was set to GSM only. Set it to WCDMA preferred and now it's good.
Click to expand...
Click to collapse
Sent from my Nexus One using XDA App
ezhangin said:
Had the same issue after update, did *#*#4636#*#* and noticed I was set to GSM only. Set it to WCDMA preferred and now it's good.
Click to expand...
Click to collapse
Thank you. Updated to FRF83 this morning and I've had a full 3g signal, just couldn't pull data all day. Could over edge. Sure enough, GSM only was selected.
AT&T N1.
I'm having the same issue on a non-rooted phone on T-Mobile. No 3G after the FRF83 update. Full bars of service and 3G displayed in the status bar. Dropping to Edge only works but there is no data with 3G.
Lost Dog said:
I'm having the same issue on a non-rooted phone on T-Mobile. No 3G after the FRF83 update. Full bars of service and 3G displayed in the status bar. Dropping to Edge only works but there is no data with 3G.
Click to expand...
Click to collapse
Same issue here.
Switching to WCDMA preferred doesn't work for me though.....any help is welcome
I think it's a hardware problem with a lot of N1's.
Mine was ok the first 2 months, and later, 3g not working. This is driving me crazy ):
I have tried everything. Change the simcard, I did a reset of the data with my telcon, and nothing happens.
I've seen these problems on many N1's.
I hope google / htc release a fix for this problem.
Lost Dog said:
I'm having the same issue on a non-rooted phone on T-Mobile. No 3G after the FRF83 update. Full bars of service and 3G displayed in the status bar. Dropping to Edge only works but there is no data with 3G.
Click to expand...
Click to collapse
how bout checking your bands in the service menu. so *#*#4636#*#* -> phone info -> press the menu key for more options -> select bands -> choose one appropriate for your region (ie "USA BANDS").
If all else fails do a factory reset by going to the settings -> privacy -> restore factory defaults.. of course do a backup/sync/whatever before just to make sure you can get all your apps back.
There's other ways to do a factory reset via the bootloader .. its under recovery and you press up volume or the trackball I think and you can just select all the clear/erase settings there and that should clear out everything on the phone's internal storage.
The factory reset worked for me (via bootloader) when I upped from update-1 to FRF50 and didn't have any data icon next to my signal strength. Could call out but couldn't get data.
Hope that helps.
jasonpich said:
I think it's a hardware problem with a lot of N1's.
Mine was ok the first 2 months, and later, 3g not working. This is driving me crazy ):
I have tried everything. Change the simcard, I did a reset of the data with my telcon, and nothing happens.
I've seen these problems on many N1's.
I hope google / htc release a fix for this problem.
Click to expand...
Click to collapse
Check your APN settings. Do a full factory reset from the bootloader. If nothing works you should call tech support again. Most 3g issues where you have issues with connecting are service/signal level related. I *****ed early about my 3g issues on tmobile and it was the network as they've pretty much gone away with improving the backhaul in my area for HSDPA+ or updates to the phone's radio.
HTC is really really really cool about swapping phones and repairing them. If you feel you have a nexus that has hardware issues call them. I did this 3 times already (one time for minor cosmetic issues with the refurb they sent) and I couldn't be happier about how willing they were to replace/repair the phone. It turns out I really didn't have any issues with them at all.. with any issues with hardware from the second refurbished phone. It was service or software related and I'm happy to say with updates/tmobile service improvements I couldn't be happier with this phone.
blisk said:
Check your APN settings. Do a full factory reset from the bootloader. If nothing works you should call tech support again. Most 3g issues where you have issues with connecting are service/signal level related. I *****ed early about my 3g issues on tmobile and it was the network as they've pretty much gone away with improving the backhaul in my area for HSDPA+ or updates to the phone's radio.
HTC is really really really cool about swapping phones and repairing them. If you feel you have a nexus that has hardware issues call them. I did this 3 times already (one time for minor cosmetic issues with the refurb they sent) and I couldn't be happier about how willing they were to replace/repair the phone. It turns out I really didn't have any issues with them at all.. with any issues with hardware from the second refurbished phone. It was service or software related and I'm happy to say with updates/tmobile service improvements I couldn't be happier with this phone.
Click to expand...
Click to collapse
Thanks blisk, but the thing I don't understand is why Blackberry 9700 with T-Mobile bands, doesn't have problems at all ?
By the way, I rooted my phone , so the thing with the warranty it's complicated
I had it happen last night at work all night, but when i got home i checked my wife's tp2 and it also was doing the same thing so for levity wasn't the phone but tmobile. They started worming the same time also.... I think its tmobile.
Hello, I had the same problem with my imported n1. I'm using the tmobile version non rooted fully stock manually updated to frf83. I did a *#*#4636#*#* and selected wcdma only, rebooted and couldn't connect to my gsm network. Went in again and did a wcdma preferred, rebooted, and I works better, still changes fast to edge and G, but less often, I'm still trying it but I have high hopes its gonna be ok
Mmmm i did have problems with 3G too after pushing FRF83, but i found out that for some reason the APN settings weren't set correctly after the update. In my case the port setting after the proxy of the APN wasn't set, i changed to the correct value and it worked.
In conclusion, check your APN settings.
Just went from FRF72 to FRF83 and it's working fine.
I'm currently set to GSM auto (PRL) in the *#*#4636#*#* and I didn't change it to that after putting on FRF83.

[Q] 4G data works on Sense-based ROMs, not CM -- Credo Mobile

I looked back in the forum a couple weeks for similar threads but couldn't find one that was just like this issue.
On the stock ROM that came with the phone and with the d3rpOne ROM (Android 4.1.2, HTC Sense 5) I can get LTE working fine. I don't think it even really requires any airplane/network mode toggling.
This morning I tried Beanstalk (Android 4.3, CM 10.2) and two different releases of another CM ROM (Android 4.3, CM 10.2 and Android 4.2.2, CM 10.1).
The general instructions with those ROMs were just to toggle the network mode between LTE/CDMA and CDMA only, or to toggle airplane mode. Neither worked.
So how can I fix this? I don't really like Sense-based ROMs, but I definitely don't want to be without a good data signal.
Having the same problem. With the stock ROM, I get 4G. On CM 10.1.3, I can get 3G after toggling the network mode, but I can't get 4G.
LTE works for me using beanstalk with out doing anything special
Yeah, I got the impression that was the norm with most people. I might not have read the full thread, but I did read the first and last few pages and it seemed like everyone got 4G working at some point.
Glad I'm not the only one with this issue, though!
Bump for a new week.
Voice dialer
Say open apns
Select lte internet
Enjoy lte
Credit goes to David in the dev forum for the fix.
The APN will change back occasionally so you need to just select lte internet again.
With lte internet selected 3g and lte will work.
Sent from my One using Tapatalk 4
That sounds like a good solution, but it's still not doing it for me.
I went to APNs and selected "Sprint LTE Internet". That alone didn't do it. I toggled airplane mode, toggled my network mode, still nothing. I tried both Global and CDMA+LTE/EvDo. I gave it a few minutes for each one and still nothing. Rebooting didn't do it either.
Is there something I'm missing? How do my screenshots look? I read that someone wasn't getting an LTE indicator when they followed these steps, so just to confirm I tried to use my browser. I couldn't connect, so it's not just a matter of the signal icon being inaccurate.
I'm still seeing the same symptoms as Roboslim. Tried the same things, got the same results.
I finally got around to flashing a new radio. Could that make a difference?
robosllim said:
I finally got around to flashing a new radio. Could that make a difference?
Click to expand...
Click to collapse
Yeah, that wasn't enough to get it to magically start working.
euresir forced
robosllim said:
I finally got around to flashing a new radio. Could that make a difference?
Click to expand...
Click to collapse
When you flash the radio are you adjusting the frequency or band? Sprint uses LTE 1900 are you/can you change that? Trying to find ways to benefit an unlocked phone and take it to another carrier as Sprint sux so bad and has no 4g in my area?
euresir forced
robosllim said:
I finally got around to flashing a new radio. Could that make a difference?
Click to expand...
Click to collapse
When you flash the radio are you adjusting the frequency or band? Sprint uses LTE 1900 are you/can you change that? Trying to find ways to benefit an unlocked phone and take it to another carrier as Sprint sux so bad and has no 4g in my area?
upowersystems said:
When you flash the radio are you adjusting the frequency or band? Sprint uses LTE 1900 are you/can you change that? Trying to find ways to benefit an unlocked phone and take it to another carrier as Sprint sux so bad and has no 4g in my area?
Click to expand...
Click to collapse
I'm not very experienced beyond flashing self-contained ROMs, so I just got a ZIP someone posted in the Sprint HTC One boards and flashed that without any modifications. It didn't break anything when I went back to a Sense-based ROM, so I'm assuming it's alright.
As for unlocking and leaving Sprint... I'm actually with Credo, who uses Sprint towers. I like them, plus I just started my contract, so I personally won't be leaving anytime soon.
One last bump, I guess.
I suppose if it comes down to it, I can deal with Sense. The system settings really are way too simplistic, but with Widget Locker and a custom launcher it's something I can live with.
Alright one MORE bump. I'm getting the CM itch again. I just gave the MoKee opensource ROM a try and am having the same issue as ever.
Are there any other possibilities out there?
Flash the latest nightly. It should work fine. Worst case do a reboot after a fresh flash when the new ROM is fully booted.
Also try installing the most current firmware.
Make sure you are set for CDMA+LTE/EVDO and also try "home only" with a stock PRL before straying from default.
Sent from my One using Tapatalk
atroph said:
Flash the latest nightly. It should work fine. Worst case do a reboot after a fresh flash when the new ROM is fully booted.
Also try installing the most current firmware.
Make sure you are set for CDMA+LTE/EVDO and also try "home only" with a stock PRL before straying from default.
Sent from my One using Tapatalk
Click to expand...
Click to collapse
I have been flashing the latest releases for multiple ROMs and have had the same issue with all of them. I've tried reboots each time too.
Now, I might need some education on the rest of that post. Where can I get the latest firmware? Would that be an official Sprint/HTC thing?
I've messed with a lot of different combinations of settings after flashing these ROMs. I've done CDMA+LTE/EVDO and I'm pretty sure I've done "home only" (would the other option be "automatic"?). As for the PRL, would updating it from the system settings give me a stock PRL?
robosllim said:
I have been flashing the latest releases for multiple ROMs and have had the same issue with all of them. I've tried reboots each time too.
Now, I might need some education on the rest of that post. Where can I get the latest firmware? Would that be an official Sprint/HTC thing?
I've messed with a lot of different combinations of settings after flashing these ROMs. I've done CDMA+LTE/EVDO and I'm pretty sure I've done "home only" (would the other option be "automatic"?). As for the PRL, would updating it from the system settings give me a stock PRL?
Click to expand...
Click to collapse
There is a firmware thread here:
http://forum.xda-developers.com/showthread.php?t=2406330
Download the latest version and flash in CWM or TWRP.
The radios are the firmware images.
Changing the PRL can only be done in stock ROM, or by using QPST. The stock rom is by far the easiest if you have your MSL. Sprint should give you your MSL once you give tech support a call. If they don't then call back and get another tech. (I have never had a problem).
I would recommend using the latest stock PRL. I have noticed that if I try to roam on 3g there is a problem getting data (verizon towers IIRC). I believe that is because it is using EVDO vice eHRPD for 3g. What the difference is?? Well I don't know?
I do know that evdo and 1x still have ongoing issues. So I usually stick with home only to ensure that I stick with Sprint towers. I believe that this is the issue with me connecting to 3g data to my airave as well.
Could you post a screen shot of your APN settings?
Voice Dialer > Say "open apns" > select the menu that pops up and then screen shot what you see.
Should look like this.
atroph said:
There is a firmware thread here:
http://forum.xda-developers.com/showthread.php?t=2406330
Download the latest version and flash in CWM or TWRP.
The radios are the firmware images.
Changing the PRL can only be done in stock ROM, or by using QPST. The stock rom is by far the easiest if you have your MSL. Sprint should give you your MSL once you give tech support a call. If they don't then call back and get another tech. (I have never had a problem).
I would recommend using the latest stock PRL. I have noticed that if I try to roam on 3g there is a problem getting data (verizon towers IIRC). I believe that is because it is using EVDO vice eHRPD for 3g. What the difference is?? Well I don't know?
I do know that evdo and 1x still have ongoing issues. So I usually stick with home only to ensure that I stick with Sprint towers. I believe that this is the issue with me connecting to 3g data to my airave as well.
Could you post a screen shot of your APN settings?
Voice Dialer > Say "open apns" > select the menu that pops up and then screen shot what you see.
Should look like this.
Click to expand...
Click to collapse
I'll have to re-flash a CM ROM before posting a screenshot, but from what I recall my APN settings looked like your image. I had "Sprint LTE Internet" selected. I'll flash the latest firmware from that thread while I'm at it.
As for the MSL, I'm not getting my service directly through Sprint. Would I get the MSL from my carrier, then, or would I have to get in touch with Sprint somehow? Do you know how that works? Either way, that'll probably take a little more time and waiting around than just flashing some stuff.
Once I get that MSL, what are the steps to set my PRL?
Who is your carrier? Did you buy the Sprint version off contract?
Sent from my One using Tapatalk

3g not working if radios set to 3g only?

I noticed if I go to the mobile networking settings and have it it on lte/3g if I leave a 4g area, 3g works ok. If I put the toggle specifically on 3g it shows I have 3g, but anytime I tried to search google or access a data connection the signal goes away and gives me the signal with an exclamation point. I tried finding info on this, but didn't see anything when I searched. Anyone else have this issue? I am on Sprint with the 64gb white device. Thanks
I leave mine on 3g due to the lame multiple text issue. It has no problem staying on 3g. Perhaps try updating your PRL/profile and see if that helps.
I don't have 3g either if I set it to 3g only. I don't leave lte service too often to test whether 3g works when it switches on its own. I may have to make a trip to the mountains to test it. I do know that my old Note 2 would loose lte after flashing tons over and over and I would have to flash back to 100% stock the factory reset from the settings app to fix it. I may try this with my Nexus, about time for a wipe anyway.
Factory reset does not fix it. Just noticed that I don't even get 3g when it is set on LTE. I'm gonna go talk to my cellular provider about it.
I don't know why it wouldn't work. You did update profile and PRL also right? Here's some shots of mine and it's working fine.
I have a bad Sim.....I also don't have a phone number as well..... I swiped with an old card I had and my number appeared, I guess I'll be visiting the store tomorrow to get a new one. Maybe it'll fix my 3g. Its also not wanting to let me pick 3g as an option now, just stays on LTE.
KB112 - Are you on sprint also? I updated prl/profile and no luck still. 3g still works if I am on lte and go into a 3g zone, but if I toggle it to 3g only I get no data. Wondering if its a sprint thing or a lollipop bug on Sprint, or a bad sim, missing feature activation.
Bluemgt06 - did a new sim fix it for you?
Sorry, didn't see this earlier. But yes, I am on Sprint. My 3G would work fine if I set to 3G only. Not sure why yours has issues with this?
Oddly I tried it today and it started working. I think it could have been some kind of issue with the tower/upgrades or a bug that a reset may fix on occasion perhaps.

Flashed to PagePlus/Verizon with latest CM and have to toggle Preferred Network Type

I bought a Sprint One early on before the Verizon version had come out, with the thought that I would flash it over to use on PagePlus. I rooted, firewater s-offed, and had it flashed. Everything seemed great on the stock ROM.
Then I go to load CM, and it seems to go well. The only problem is every time I boot or come out of airplane mode, I have to toggle the Preferred network setting away from CDMA/EvDO auto to something else, and then back again, before it will connect to the network. I lived with it for awhile, but now with the latest version of CM, the system shows no connectivity at all, even when I am connected. It still works, but it is becoming increasingly annoying to use.
I have loaded the latest PRL, and flashed the most recent radio.
Any thoughts?
earthiphi said:
I bought a Sprint One early on before the Verizon version had come out, with the thought that I would flash it over to use on PagePlus. I rooted, firewater s-offed, and had it flashed. Everything seemed great on the stock ROM.
Then I go to load CM, and it seems to go well. The only problem is every time I boot or come out of airplane mode, I have to toggle the Preferred network setting away from CDMA/EvDO auto to something else, and then back again, before it will connect to the network. I lived with it for awhile, but now with the latest version of CM, the system shows no connectivity at all, even when I am connected. It still works, but it is becoming increasingly annoying to use.
I have loaded the latest PRL, and flashed the most recent radio.
Any thoughts?
Click to expand...
Click to collapse
You have an Verizon sim card installed?

Cell signal keeps reverting to 3G

Hi,
So I'm having an issue keeping an LTE signal. I use straight talk with at&t and I can get LTE if I turn the radio on/off, but it will always switch itself over to 3G at some point in the same location. There are apps that can force it to do LTE only which works, but I can't make or receive voice calls over LTE.
Does anyone know how to fix this? This never happened on other phones on the same network. In my specific location I get 2-3 bars of LTE and 4 bars if switched to 3G. I guess it wants to keep using the better signal.
Also at home where I have full signal LTE and H+, it will choose H+ over LTE.
Had same problem. Switched sim slot to the other. 4g again. Try IT?
Did you try different APN settings? I'm guessing you already checked the preferred network option.
Sent from my MIX using Tapatalk
APN settings are good and I can get LTE if I flip the radio on and off...it just always wants to revert back to 3G at some point. Same thing happens in sim card slot 1 or 2
pacattack81 said:
Hi,
So I'm having an issue keeping an LTE signal. I use straight talk with at&t and I can get LTE if I turn the radio on/off, but it will always switch itself over to 3G at some point in the same location. There are apps that can force it to do LTE only which works, but I can't make or receive voice calls over LTE.
Does anyone know how to fix this? This never happened on other phones on the same network. In my specific location I get 2-3 bars of LTE and 4 bars if switched to 3G. I guess it wants to keep using the better signal.
Click to expand...
Click to collapse
Which rom are you on? I remember there's a specific rom that has a bad modem file. Trying updating to the latest version.
Maybe you can solve it by going to APN settings and set APN protocol -> IPv4 and APN roaming protocol -> IPv4 . That worked for me. I had the same issue.
Or try IPv4/IPv6. That's network related and maybe IPv4/IPv6 is correct for you.
I have to set it every time I flash EU or EPIC rom.
Good luck.
did you ever figure this out?
I'm having a similar problem on a Note 4 Global. Only it switches to 3G for a voice call and never switches back.
dennygreen said:
did you ever figure this out?
I'm having a similar problem on a Note 4 Global. Only it switches to 3G for a voice call and never switches back.
Click to expand...
Click to collapse
Firmware update?
james1089 said:
Firmware update?
Click to expand...
Click to collapse
I've updated it, and it's all the same. Once in a great while it will switch over to LTE on its own, but 99% of the time it will just sit on H+ forever even though I know the LTE is fine wherever I go.
I guess this is just how it's going to be.
I finally fixed this by wiping everything in twrp and flashing a newer version of the global stable rom. LTE works fine now, and it doesn't stick on H+ when I make a call anymore.
dennygreen said:
I finally fixed this by wiping everything in twrp and flashing a newer version of the global stable rom. LTE works fine now, and it doesn't stick on H+ when I make a call anymore.
Click to expand...
Click to collapse
That's interesting. I guess Xiaomi fixed the bug in one of the releases. I wonder why you had to wipe everything though. What if we try to flash the latest modem. Is there a link to that? Would that work?
Would modem be the same as firmware? There's a thread on here that has those. None of them did anything for me.
My LTE problem is isn't fixed after all I guess. Once it loses LTE, it still never reconnects to it on its own and goes to H/H+ forever.
I guess the only thing that I've fixed is that it actually switches back to LTE after a phone call.

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