APN issues? - Nexus 6P Q&A, Help & Troubleshooting

I'm currently having issues where it seems that my APN settings aren't sticking. My cellular service & data work fine until I go into an area where I lose service & then when I reenter the service area my data won't switch back on. & sometimes it seems to lose data for absolutely no reason. But if I go into *#*#data#*#* & restore default APN settings & reboot my data works again. I'm on sprints network, using screwd rom, latest milestone build, the latest bootloader, & the latest radio. I've tried update prl. Ive tried update device configuration & when i update device configuration after it finishes I lose both data & cellular service until I reboot. I've tried performing "hands free activation" which also causes me to lose cellular service until after I reboot again. I've clean flashing rom & gapps, even tho I don't think its rom related. Reflashing the latest radio IMG. My next step is restoring the device to a google stock factory img & then starting all over. Anyone who has any suggestions I would greatly appreciate the help.

Upon further research it appears to be a bug in googles code affecting aosp ROMs. Doesn't affect all aosp ROMs tho. No known fix yet

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[Q] 1xII Internet being slow Energy Rom 3.5

Hello guys I just flashed my new evo 4g with Energy Rom 3.5 did all the data wipe and cache from rom manager, and I am not able to get 3g service all I get now is 1x service. Any Clues ?
It could be that you've had 1x service the whole time. Most custom roms disable the sprint hack that would show 3g when in fact you're in a 1x area.
If that's not the case. you can always try re-downloading the rom (in case of a bad download), or updating your profile and prl.
You didn't properly wipe your phone before flashing the rom. Please do it again.
lithid-cm said:
You didn't properly wipe your phone before flashing the rom. Please do it again.
Click to expand...
Click to collapse
Agreed - Rom Manager will only cause you problems, you need to start doing things in recovery. Switch to Amon Ra recovery, then in recovery wipe everything except sd, then flash the rom.
well tried wiping again and installing amon ra recovery using it to wipe all of the data/cache/dalvic and installing energy rom... again also tried installing the cyanogen and couple of others, still no go still getting 1x speed and icon on most of them. my gf shift evo 4g gets 3g service, with 3g speeds abeit not too fast but, it does work cause it's running cyanogen mod, aosp kernel and everything. is there a way to do a complete restore to factory now.... can you point me to the right direction on how to get that done
I had the same exact problem and this worked for me. I found it on goodandevo.net
After following these directions I upgraded to the latest prl and maintain 3g.
'Turn off your GPS. Dial ##3282#, and select Edit. Enter your MSL, then go to Data Profile. Push the menu button, then tap on Restore. Push OK to reboot. Allow the phone to go through hands-free activation, but WATCH YOUR PHONE CAREFULLY AND PRESS CANCEL WHEN IT BEGINS TO UPDATE PRL.'
Found this in the comments here: http://www.goodandevo.net/2011/09/st...t-3g-back.html
Obviously, first you will have to flash a ROM that has working EPST, after restoring 3g, it should hold thru all following flashes.
Have you updated profile and prl?

[Q] Radio/Modem not working at all.

Hey, I normally wouldnt make a help thread. But Im at a total loss of ideas on how to fix this. My Nexus 4 has been running on AOKP 4.3 nightlies for a week or so perfectly fine. Today out of the blue I lost signal all together, so I went through the normal steps of checking if everything is in order. I tried to go into my apn settings to check those, but I just got a force close upon opening my mobile networks settings. I tried using the *#*#INFO#*#* menu to check my phone settings in there, but that force closed as well.
So I flashed a clean ROM and tried to check my APN settings. I was able to get into the APN menu this time, but when I would try to save an APN and it would just exit the setup screen without saving an APN. When I try and change the setting to anything (for example, GSM, WCDMA, etc) in the *#*#INFO#*#* menu it instantly resets to "UNKNOWN" I have tried flashing multiple new radios, and new kernels and nothing has worked. I'm totally lost.
Any help would be enormously appreciated. All of my previous phones were CDMA phones so I cant really just swap my sim into an old phone to use.
EDIT: Problem was resolved. If you find this thread because you have a similar problem, download the factory image from Google's site and flash that. That fixed it for me.
calebloop said:
Hey, I normally wouldnt make a help thread. But Im at a total loss of ideas on how to fix this. My Nexus 4 has been running on AOKP 4.3 nightlies for a week or so perfectly fine. Today out of the blue I lost signal all together, so I went through the normal steps of checking if everything is in order. I tried to go into my apn settings to check those, but I just got a force close upon opening my mobile networks settings. I tried using the *#*#INFO#*#* menu to check my phone settings in there, but that force closed as well.
So I flashed a clean ROM and tried to check my APN settings. I was able to get into the APN menu this time, but when I would try to save an APN and it would just exit the setup screen without saving an APN. When I try and change the setting to anything (for example, GSM, WCDMA, etc) in the *#*#INFO#*#* menu it instantly resets to "UNKNOWN" I have tried flashing multiple new radios, and new kernels and nothing has worked. I'm totally lost.
Any help would be enormously appreciated. All of my previous phones were CDMA phones so I cant really just swap my sim into an old phone to use.
Click to expand...
Click to collapse
Try have a look at this http://forum.xda-developers.com/showthread.php?t=2087227
arifhazwan said:
Try have a look at this http://forum.xda-developers.com/showthread.php?t=2087227
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Click to collapse
I've tried flashing a few of the radios from that thread with the same result every time, unfortunately.
Currently what ROM you're using? If you're on nightlies you should be aware that it isn't stable. I suggest you restore your nand backup if you have one.
arifhazwan said:
Currently what ROM you're using? If you're on nightlies you should be aware that it isn't stable. I suggest you restore your nand backup if you have one.
Click to expand...
Click to collapse
Im currently on an AOKP nightly. Im trying to flash back to stock but Im having trouble getting it to do that for some reason too. Its acting like its been flashed, but it always boots up into AOKP again. Trying my hand at another toolkit before I start attempting to do it manually.
arifhazwan said:
Currently what ROM you're using? If you're on nightlies you should be aware that it isn't stable. I suggest you restore your nand backup if you have one.
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Click to collapse
Flashing back to a factory image fixed the issue. Thank you!
Don't forget to make a backup. By the way I just got my 4.3 with CM 10.2 working with franco kernel.

[Q] Help with data connection

I've been running cm 12.1 nightiles for as long as they've been available. I was on 6-14 for quite a while and when I finally updated to 6-25 I lost data connection save for the occasional 3g connection. No lte or hspa. So, I went back to the ROM I was using; no dice. Full factory reset, cache and dalvik... Flashed the latest optimized cm 12.1 on a clean device and still can't figure out the issue. My APN is set to my carrier and all. Is there something I'm missing or messing up? I'm on a metro PCs m919n currently on antaresOne optimized. Prior I was on the carrier specific version of the nightlies when this started.
I also called my provider to have my device "refreshed" for whatever that's worth. I thought it might be an issue on their end. Made no difference.

No Cellular Signal

So let me start my admitting my mistake. I tried to install a stock image as a secondary ROM using MultiROM. Obviously it didn't work, and I deleted the installation. Everything seemed to be fine, but once I booted back into my current ROM (LOS 14.1) and no longer have any cell signal whatsoever. According to my SIM Status, I am Disconnected.
I tried resetting my Network Settings which didn't help. I'm at the point of trying a fresh install, but wanted to see if anyone had any thoughts first. Could I try flashing the radio?

No data-- carrier settings: "com.android.phone has stopped"

Hi all--
I wonder if you could please help me solve a tricky issue?
Before rooting, phone worked fine. Brand new Moto 5G Plus activated on Sprint network.
After rooting my G5 Plus with a custom rom (Dirty Unicorns), everything worked fine except I lost my LTE signal (Sprint). The phone functions in all other capacities (calls, SMS, wifi). To be clear, the phone is receiving a Sprint signal, but no data LTE/3G is passing through. Phone calls and SMS are fine.
When I go to Settings-Network & Internet-Mobile Network-Advanced-Carrier Settings, I get an error-- "com.android.phone has stopped."
I decided to test with another reliable custom rom so I installed LineageOS 15.1. Same exact problem-- no data, and carrier settings brings up ""com.android.phone has stopped."
Any ideas? I've googled myself to death and I've not found anything that has worked.
Thanks in advance, everyone.
Could you get us trough ur procedure of flashing ?
Sure
All done in TWRP
Factory reset (wipe data/dalvik/cache)
Install Custom Rom (either Lineage 15.1 or DU v12.5.2)
Wipe cache/dalvik
Install GApps (ARM64-- I tried to install 32-bit GApps as I've heard Moto G5 Plus runs on 32-bit architecture, but it failed-- install log told that ARM64 was the correct version for my device)
Wipe cache/dalvik
Install Magisk
Reboot
That's it-- one thing I noticed when restoring my manufacturer rom image was that I needed to issue a *#*# dialer command to get SprintDM to start recognizing the network. When I tried to issue that command in DU and LineageOS, nothing happened.
Following up on my last email
Does anyone know if the ##72786# or *#*#72786#*#* dialer command (which forces a system update to provision data with the carrier) is specific to Sprint or if it's part of Android? The reason I ask is because this command works fine on factory roms but doesn't seem to work on my rooted phones (in addition to the Moto G5 Plus, same thing happens with my wife's super old rooted Moto X with Renegade custom Rom-- but no problem with data on this phone). On stock factory rom, the phone resets and SprintDM provisions the data. On rooted Dirty Unicorns and LineageOS, nothing happens. I wonder if this broken command is related to the "com.android.phone" error I discussed above.
schleima said:
Hi all--
I wonder if you could please help me solve a tricky issue?
Before rooting, phone worked fine. Brand new Moto 5G Plus activated on Sprint network.
After rooting my G5 Plus with a custom rom (Dirty Unicorns), everything worked fine except I lost my LTE signal (Sprint). The phone functions in all other capacities (calls, SMS, wifi). To be clear, the phone is receiving a Sprint signal, but no data LTE/3G is passing through. Phone calls and SMS are fine.
When I go to Settings-Network & Internet-Mobile Network-Advanced-Carrier Settings, I get an error-- "com.android.phone has stopped."
I decided to test with another reliable custom rom so I installed LineageOS 15.1. Same exact problem-- no data, and carrier settings brings up ""com.android.phone has stopped."
Any ideas? I've googled myself to death and I've not found anything that has worked.
Thanks in advance, everyone.
Click to expand...
Click to collapse
A similar thing happened to me. I was rooted with a custom rom(Pixel Experience) but I switched carriers to Boost Mobile and now I have no data and com.android.phone crashes when I try to open carrier settings.

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