Develop Bugs

Cannot Connect to Mobile Data

Good day Gentlemen and Ladies,
So, as you the title states I cannot connect to mobile data (3g). (Before posting this I had done my research trying to find a solution and I cannot find any solutions) Let me tell you a little bit about my Galaxy Nexus SO originally when it was purchased it was a yakjuxw and I flashed to stock yakju-4.0.4 by this methodI can not link the video atm as I am a noob here) (I am sure that I did not skip any steps). I updated to android 4.2.1 all OTA updates and since that day I cannot connect to mobile data. I am pretty sure this is a software issue unless its a coincidence that my device fails on me at this point in time. Everything worked fine before i flashed it. I have tried going into *#*#4636#*#* and making sure my network type is correct as well as the radio band as automatic. I tried rebooting the device, I turned on mobile data and waited for +2hours for it to connect and nothing. I am sure I did not reach my mobile data limit as it is the beginning of my billing cycle. So, if anyone has any solutions would you be kind enough to give me a link or instructions on how to fix this problem. I recently also got double my data free of charge (from my provider) and I can't even use it Lol... Thanks!

1. Settings -> About Phone -> See your baseband? Does it exist or does it say Unknown?
2. Attempted to reset APN?
3. Tried your SIM card in another phone? Does data work on that phone?

zephiK said:
1. Settings -> About Phone -> See your baseband? Does it exist or does it say Unknown?
2. Attempted to reset APN?
3. Tried your SIM card in another phone? Does data work on that phone?
Click to expand...
Click to collapse
Man you are a genius thank you. It was an APN problem. I think when I flashed it the server # and port # went missing or something so I added those and 30 seconds later it is all working! Thanks again my friend. And for anyone who has this in the future you can access you APN settings->more...->mobile networks->Access Point Names (and APN vary on provider)

I can't fine my WiFi but still see all other WiFi networks!

My friend bought a LG G3 yesterday and it was working 100% , but today he can't see his router's WiFi.
We tried to reset the router settings and set it all again , but still the same problem.
He can see all other Wireless networks but not his network.
My brother have another LG G3 and he can see the WiFi network but his friend's G3 can't.
What is the problem? how to fix it?

I have seen many g3 having wifi issue which is hardware issue almost every time but u can try first going into service menu explore the menu till u find wifi change the settings see if it helps if not factory reset first complete wipe the phone if it still persists then flash stock rom via lgup or lg flash tool 2014

Cant choose Network after upgrading to MM

Hi,
I've upgraded my note 4 to MM using the "Bootloader unlock and safe upgrade to MM "post from the general section. Now I'm having the next problems:
1.-I'm using a GSM Sim Card and it works but when I try to change the network mode I only get LTE/CDMA and CDMA, if I select one of those the networks, it stops working, and to go back I have to do a Network Settings Reset.
2.-I cant use MMI codes from my operator, I think that this might be due to the first problem.
What can I do to fix this?

Flash jasmine rom instead
Sent from my SM-N910V using Tapatalk

tribalb said:
Flash jasmine rom instead
Sent from my SM-N910V using Tapatalk
Click to expand...
Click to collapse
Is this the only solution? install another ROM?

Same problem on 5.1.1. Non VZ SIM, two phones (both VZ Note 4's) - the 'Global' network mode option disappears, as does the entire 'APN' button. Restoring to full 5.1.1 (non rooted, etc) resolves this. It appears that during the original setup wizard stage, something (Knox? License Agent? Dunno?) does something and then I can use my non-VZ SIM.
The same thing during a rooted/partial-system-5.1.1 (systemonlyN910V-5.1.1.tar) + factory reset, there is a 'Knox has stopped responding' and the SIM never seems to work, and the network mode options do not allow me to select Global, or input an APN (there is no APN button).
Same thing but *without* wiping "data" (ie, not selecting 'factory reset'), the SIM works, or rather I can select 'Global' as my network mode, and the APN options are available.
Unfortunately I also have to go thru the process of removing KingRoot and the other junk at this point.
My theory at this morning is that there is a setting on 'data' that Knox applies during the setup wizard(s) that affects how the network options work with a non-vz SIM.
I suspect that if you have a normal VZ SIM and go thru the root process above, you probably have limited (fixed) network options but they are the settings that work with vz.
Some or all of the above may be totally wrong - I'm learning daily and have lots of learning left to do.

Anyone having a data roaming issue with Oreo?

Hey all, I'm a Canadian truck driver that has an (unlocked) S7 Active (on T-Mobile) that I've recently upgraded to Oreo via Odin. The phone works better than ever except now when I'm in Canada, network data no longer works properly. I say properly because every once in a while it will connect long enough to receive a few emails then will disconnect again. But most of the time it just doesn't connect. The data roaming worked perfectly on Nougat (BRA7).
Here's what i've done so far:
Clean install of Oreo (CRE7) via Odin 3.13.1
Factory reset via recovery
Cleared Cache via recovery
Data doesn't connect properly.
Downloaded CRE7 again in case it was a bad download.
Repeated the flashing, factory reset, and clearing of the cache just in case something went wrong.
Data still not working properly.
Updated from CRE7 to CRH1
Updated from CRH1 to CRJ1
Cleared cache
Restarted phone, cycled airplane mode, #766#
Data still not working properly
Bought a new SIM thinking that may be the problem. But no change with the data.
And yes mobile data and international data are turned on in the phone.
When I flashed the phone I was at home in Canada. So I thought maybe it would have to connect to a T-Mobile tower to get the proper network settings. So on my next trip to the US, the data worked perfectly in the US once it connected to a T-mobile tower. But once back in Canada it stopped working again.
When I manually try to switch to a Canadian network (Bell, Telus or Rogers), I will get the message "Disconnect Network... Unable to search for networks while data service is in use. Stop using current data service and search for other available networks?" Which I find strange because the phone isn't connected to data.
I have found a temp solution to getting the LTE to work by opening an app that requires location data (in my case it was Weigh My Truck), and that seems to force the phone to connect to the LTE network.
I've bought a 2nd s7 active to have as a spare phone and won't be updating it until Oreo is 100% stable on the S7 active.
Does anyone else have this issue? Is there a permanent fix?

Pixel 2 XL cellular data issue with any custom ROM

Recently i have entered some state in which mobile data is busted on my phone. I have tested multiple android pie roms to find the same thing in each. When i flash the latest stock android (PQ1A.181205.002), mobile data is fine. In this broken state i can see the signal bars with a little 'R' by them (notification on lost mobile data connection Data roaming is turned off. tap to turn on). Every time i navigate into Settings> Network & internet > Mobile Network > Advanced > Carrier Settings. The screen will flash and take me back to Mobile Network, this happens with every custom rom tested. The app SprintDM tries to set up the phone 5 times and then fails. Phone codes seem to have no effect. the code 4636 will allow me to view current info in which it says mobile data disconnected. It doesn't appear to matter if i connect to wifi and allow the basic stock apps to update first. Reboots do not help. I even tried flashing the modem and radio for PQ1A.181105.017.A1 and OPM4.171019.021.R1. I can also say the phone app shows a message "This device is not supported and phone calls may not work correctly". Phone calls work fine. Previously i was running LiquidRemix (10.0.2) just fine, everything working. Randomly mobile data died so i tried a update to LiquidRemix (10.0.3) and still busted. Tested multiple other PIE roms to find the same. And again if i flash any stock firmware mobile data is fine. Anyone else see this or have an idea of how to fix this for custom roms?

I rooted my pixel2xl yesterday and installed Havoc OS.
Today I was out with my family and was trying to navigate via Google maps and it continuously displayed error "try again"
Status bar was showing lte connection then I tried opening chrome and was unable to use mobile data even if it being on and active.
I am planning to move to Stock again tomorrow

vipulkarkar said:
I rooted my pixel2xl yesterday and installed Havoc OS.
Today I was out with my family and was trying to navigate via Google maps and it continuously displayed error "try again"
Status bar was showing lte connection then I tried opening chrome and was unable to use mobile data even if it being on and active.
I am planning to move to Stock again tomorrow
Click to expand...
Click to collapse
vipulkarkar, did you find out any other additional info on this? I went back to stock and everything is fine but would very much rather be running a custom rom.

Just seeing this post, fortunately, I've not run into this issue on stock or custom roms ... What I do run into, on stock or custom roms, is when I leave my house, with a T-Mobile CellSpot, I tend to switch to 3G or H+ in an LTE area. I sometimes have to cycle airport mode a couple times to get LTE back.. So odd and annoying!

Is there something we Sprint users could do to help the devs include Sprint connectivity in their roms? Like provide a nandroid backup of our device or ?