Develop Bugs

One X on AT&T H to 3G to H... rinse and repeat!

Guys,
Unlocked and rooted One X on AT&T and my pegged out signal keeps changing from H to 3G over and over and over.... you get the picture. Never stays on one very long before changing and will disrupt data services for a brief moment while it does.
Is anyone else seeing this behavior and if so, any fix to resolve?
SG

swich2mac said:
Guys,
Unlocked and rooted One X on AT&T and my pegged out signal keeps changing from H to 3G over and over and over.... you get the picture. Never stays on one very long before changing and will disrupt data services for a brief moment while it does.
Is anyone else seeing this behavior and if so, any fix to resolve?
SG
Click to expand...
Click to collapse
Yea I notice it. I believe it's part of the way it saves power but idk if thats true because on my Galaxy Nexus, it would almost always stay on "H".
Mine doesn't really switch out of "H" though when actually loading something, just takes a bit to go from "3G" to "H". I've maybe experienced it once or twice when actually loading something where it would switch out of "H" to "3G" while loading something on XDA or a website. But it's usually when connection is weak.

I'm having the same issue.

if it keeps happening, then complain to ATT and ask for credit on your data plan because it doesn't work the way it should.

From what I read, AT&T phones show only h, even though in the background they switch back and forth.
But when you use international phones on the network, it will show the switching around. I'm not sure if that's related to your issue, but over here on rogers, my phone switches between 3g and h constantly, even when I'm at one location.. The thing is that I don't get long disruptions though, if any at all.

I'm on att and don't experience this. My icon switches frequently but I don't see any interruption in service.
Sent from my Xoom using xda premium

Thanks all, just wanted to make sure that I was the only one experiencing. I will probably go into the AT&T store and see if their One XL display units is doing the same thing while I have mine with me.
Could be that "international" issue type of thing... who knows.

Yes, mine does this too. Im on straight talk which uses at&t and it frequently keeps switching back and forth.
Sent from my HTC One X using Tapatalk 2

Mine should be in on Tuesday. Think we might have the wrong APN's??

Have you checked the APN settings?
http://forum.xda-developers.com/showthread.php?t=1109983

Moving from 2/3G to HSPA+ is by design and called fast dormancy. Here's more than you could ever possibly want to know about it.
http://www.slideshare.net/zahidtg/gsma-fast-dormancy-best-practices
It saves battery life and when working properly it's undetectable. That is when FD is active on a device and the network it's using supports it. (AT&T does). If OP's dropping signal something's wrong. I'd check...
- The APN's you use on AT&T must match the plan that's provisioned in your account settings. If you're on a 3G plan (grandfathered unlimited, MediaNet, data for non-Smartphones) use the 3G (Cingular) settings. If you're on a 4G (non-LTE) plan use the 4G (HSPA+) APN. Wrong APN means funky data even if it seems fine sometimes.
- Older SIMs or SIMs from iPhone's in non-Apple devices have caused problems. As has bad surgery in the move to micro. Pop in to an AT&T store and get a new micro SIM matched to the provisioning of your account.
- Bad phone h/w. In not the above it could be the device.
I've just been across the country on the AT&T network and my phone has performed better than my i9100 in picking up and maintaining a signal (I'm on a 3G plan). It's been impressive actually especially in moving from HSPA to Wi-Fi and back. So with the right settings the phone itself should be fine.

vinuneuro said:
Have you checked the APN settings?
http://forum.xda-developers.com/showthread.php?t=1109983
Click to expand...
Click to collapse
Just tried that and it's not working for me. Doubled checked, everything is exactly as he said. I just don't have the option to switch from what it currently is (MediaNet). There's no radio button for the other two. Even after deleting the original (only leaving the two I just made) and restarting, I have no connection to the network.

angingrich said:
Just tried that and it's not working for me. Doubled checked, everything is exactly as he said. I just don't have the option to switch from what it currently is (MediaNet). There's no radio button for the other two. Even after deleting the original (only leaving the two I just made) and restarting, I have no connection to the network.
Click to expand...
Click to collapse
I agree, the settings aren't working for me either in Orange County, CA

After you set up the new APN's try deleting the old one. You can always get it back by selecting "restore to default."

BarryH_GEG said:
After you set up the new APN's try deleting the old one. You can always get it back by selecting "restore to default."
Click to expand...
Click to collapse
has it worked for you?

meihcydna said:
has it worked for you?
Click to expand...
Click to collapse
I had an unactivated micro SIM that I had my corporate account rep activate so my situation's different than yours; the SIM is tied exactly to the settings in my account. I popped it in, it picked up the MediaNet settings, and all was good.
My phone has a single APN so I can't see the way the settings look when there are multiples. The last setting in the active APN is "APN enable/disable" which is greyed out on my because there's no other choice. Did you try disabling it after you got the new APN's entered? Maybe if you do it'll allow you to select the new APN's you created.

BarryH_GEG said:
I had an unactivated micro SIM that I had my corporate account rep activate so my situation's different than yours; the SIM is tied exactly to the settings in my account. I popped it in, it picked up the MediaNet settings, and all was good.
My phone has a single APN so I can't see the way the settings look when there are multiples. The last setting in the active APN is "APN enable/disable" which is greyed out on my because there's no other choice. Did you try disabling it after you got the new APN's entered? Maybe if you do it'll allow you to select the new APN's you created.
Click to expand...
Click to collapse
My "APN enable/disable" is greyed out as well. I tried the new APNs in the other thread and couldn't get a internet connection. The only successful APN with the One X was the medianet. Other than that, I'll settle for the medianet but only wanted to change it to get better speeds in my area since this phone is capable of receiving up to 21mbps.

meihcydna said:
this phone is capable of receiving up to 21mbps.
Click to expand...
Click to collapse
The highest I've seen on either an international phone or an AT&T 21MB-capable phone is 8MBish down. That's in TX where there's lots of bandwidth shared by not a lot of people. In markets like LAX, NYC, and SFO you're lucky to break 5MB because of the congestion. I've seen 2MB and under in Manhatten. HSPA+ speeds on AT&T are very much YMMV.

BarryH_GEG said:
The highest I've seen on either an international phone or an AT&T 21MB-capable phone is 8MBish down. That's in TX where there's lots of bandwidth shared by not a lot of people. In markets like LAX, NYC, and SFO you're lucky to break 5MB because of the congestion. I've seen 2MB and under in Manhatten. HSPA+ speeds on AT&T are very much YMMV.
Click to expand...
Click to collapse
I agree but just thought I could push a bit more since I'm only hitting 6mbps. Thanks for the info though!

Just whats on my phone
Ok so I was looking at my piece of craptivate and its APN settings. Mine are quite different from what you guys are saying. Should I change this if I try to cut down my current sim?? Here are settings on current sim.
Name cingular 410
Apn wap.cingular
proxy not set
Port Not set
Username [email protected]
Password ******** (does this mean it has a password??)
Server cingualrgprs.com
MMSC mmsc.cingular.com
MMS Port Not set
MCC 310
MNC 410
Authentication type not set
APN type default,supl,mms
Apn Protcol ipv4

XZ2 Compact APNs Locked?

I've been using my XZ2 Compact on Verizon since it was released. No issues. Switched to Total Wireless today, and my internet will not work. Voice and text works fine. Total Wireless operates on Verizon's network. This SIM card works fine when I put it into a Google Pixel.
My APN settings are locked (there is no "+" button). Automatically updating the APN settings adds a Verizon profile that is totally different than the one that automatically popped up on my Pixel. I can delete the existing APN profile, but I cannot add one. I've restarted the phone many times, both while connected to WiFi and not. I get internet back immediately if I reboot with the Verizon SIM.
I've searched around the interwebs, and I cannot find anything. Any help would be appreciated.

jmdale1984 said:
I've been using my XZ2 Compact on Verizon since it was released. No issues. Switched to Total Wireless today, and my internet will not work. Voice and text works fine. Total Wireless operates on Verizon's network. This SIM card works fine when I put it into a Google Pixel.
My APN settings are locked (there is no "+" button). Automatically updating the APN settings adds a Verizon profile that is totally different than the one that automatically popped up on my Pixel. I can delete the existing APN profile, but I cannot add one. I've restarted the phone many times, both while connected to WiFi and not. I get internet back immediately if I reboot with the Verizon SIM.
I've searched around the interwebs, and I cannot find anything. Any help would be appreciated.
Click to expand...
Click to collapse
I use another mvno and the part that's most important is 'apn name' when using an mvno mine has to be set to say reseller... Have you tried pressing download internet settings? That usually fixes the problem and bring back the plus or allow you to manually change the apn setting after it downloads it. Take it you aren't using the dual sim as sometimes switching the Sims around brings back the apn menu.

Thanks for the insight. I have tried downloading settings several times, it just bring back the "VZWINTERNET" APN.
It is a single SIM US model.
I have not tried renaming the APN. That is the one thing I can edit on it.

jmdale1984 said:
Thanks for the insight. I have tried downloading settings several times, it just bring back the "VZWINTERNET" APN.
It is a single SIM US model.
I have not tried renaming the APN. That is the one thing I can edit on it.
Click to expand...
Click to collapse
Does total wireless publish the apn settings? Sometimes ios/android uses slightly different settings. Just look at what apn name should be, and try to match it up..

ehBrY said:
I use another mvno and the part that's most important is 'apn name' when using an mvno mine has to be set to say reseller... Have you tried pressing download internet settings? That usually fixes the problem and bring back the plus or allow you to manually change the apn setting after it downloads it. Take it you aren't using the dual sim as sometimes switching the Sims around brings back the apn menu.
Click to expand...
Click to collapse
I'll try that as soon as I get home, thanks!

I can't believe it! Changing APN Name to "TRACFONE.VZWENTP" is all that was needed. Thanks a bunch!

jmdale1984 said:
I can't believe it! Changing APN Name to "TRACFONE.VZWENTP" is all that was needed. Thanks a bunch!
Click to expand...
Click to collapse
Glad you are up and running! Anytime.

Unusual Solution for APN settings that can't be edited normally

If you have a phone which needs APN settings modified for it to function fully this may be of interest. In many cases you can simply go into Settings > Network > Network and Internet > Mobile Data and add an APN or edit an existing APN.
However in some cases you may find as I did that the SIM / phone combination does not allow you to edit or add APN settings. If you have root their may be ways to edit the APN configuration files directly. However with Android 10 and some other situations that becomes difficult if not impossible. In my case even the phone network service support could not update the APN setting. I knew what the APN settings needed to be but since I had an unrooted Android 10 device (a smartwatch in this case but it will work for phones also) I could not get access to folders to edit the configuration and it is unlikely it would have been saved due to Android 10's read only system partition.
On this device I had cellular phone calls and text working but NO Mobile data. I could see the APN settings were not correct for the service I was on for Mobile data to work. I tried everything for days to edit but it was grayed out and I could not add a new APN. In the process of pursuing a solution I found that putting in a different SIM (in this case a Textnow SIM for their new free phone service through Sprint) that I could edit the APN settings when that SIM was inserted. So you will need to find a SIM card that will allow you to edit settings.
Now the real trick involves hot swapping SIM cards so if you aren't comfortable with that then you won't be able to do this. There seems to be differing opinions on this but no phones or watches or SIM cards were damaged when I tried this.
What I did was edit the other SIM by changing the APN settings. Then when I hit the back key it said something to the effect the settings were not allowed on this. At that point I pulled out the SIM with the device ON. I then put back in the SIM for my service provider with the device still on. The settings showed up now on my formerly uneditable SIM ! Mobile data now worked fine. I
I had a second device I wanted to put the SIM in (identical to the first device) hoping the settings would still be there but they were not. Apparently communication between the SIM card and the phone gets APN settings transferred to the phone or watch. So I wanted to do the same procedure on this second device. In attempting that it did not seem to be working the same at first. However after trying for about an hour it finally worked on the second device also. So persistence pays off if it doesn't work at first. I kept turning things on and off in the Mobile data settings, rebooting and playing around with developer options. I wish I could say exactly what got it to work on the second device or why it just worked on the first device the first try but I haven't been able to pin down the variable which achieved success.
But the conclusion is that is you can't edit your APN settings normally you may have success with this method if you keep at it a bit. Good luck and please post here if you have success with this method and share any insights into how you got it to work for your device.

I know I'm a little late your one man party here. I just wanted to finally clear the air on this once and for all. So that every one can edit any and every so called "locked APN" for whatever carrier and or devices. So here we go. First off long time telecom cyber security engineer.
Step 1: Find all the APN's that your specific Carrier used for your Sim card and device. Write them down or screen shot them. Some carriers and devices may only use 1, others 2-3 +.
Step 2: Click and add another APN just as the 1 that is locked on the device. Option for option identical and click save. If you have only 1 APN. It should have now saved, unlocked the APN and you should have 2 identical. You can now go back and edit the APN that you just created. If not or you can't it usually means you have more APN's to add before they will unlock. Ultimately allowing for deletion. Have patience as this may require a little time of trial and error. Good luck all and have fun with it.

daniel081483 said:
I know I'm a little late your one man party here. I just wanted to finally clear the air on this once and for all. So that every one can edit any and every so called "locked APN" for whatever carrier and or devices. So here we go. First off long time telecom cyber security engineer.
Step 1: Find all the APN's that your specific Carrier used for your Sim card and device. Write them down or screen shot them. Some carriers and devices may only use 1, others 2-3 +.
Step 2: Click and add another APN just as the 1 that is locked on the device. Option for option identical and click save. If you have only 1 APN. It should have now saved, unlocked the APN and you should have 2 identical. You can now go back and edit the APN that you just created. If not or you can't it usually means you have more APN's to add before they will unlock. Ultimately allowing for deletion. Have patience as this may require a little time of trial and error. Good luck all and have fun with it.
Click to expand...
Click to collapse
Thank you so much for sharing. Worked perfectly.

Question No Service Issue

My new Pixel 6 Pro keeps having NO SERVICE. Restart required to temporarily resolve. - Google Pixel Community
Anyone else from the community having this issue and manage to resolve it ?
Happens in all different region.

eijnaix said:
My new Pixel 6 Pro keeps having NO SERVICE. Restart required to temporarily resolve. - Google Pixel Community
Anyone else from the community having this issue and manage to resolve it ?
Happens in all different region.
Click to expand...
Click to collapse
Had the same on my wife's P6. The connection would appear briefly, the call sometimes would go through but then connection lost and asked to switch off plane mode by the system. Tried 3 different sim cards, hard reset etc.
Filed a return and her new phone is working as it should now.

That sux, as mentioned an RMA may be needed...

Started happening to me when I updated to v37. It was fine until then. I'll probably flash the old radio image later on tonight.
Edit: nvm, the radio.img is the same between 36 and 37. It is odd that this just started happening in the last 24-48h.

leafar1606 said:
Had the same on my wife's P6. The connection would appear briefly, the call sometimes would go through but then connection lost and asked to switch off plane mode by the system. Tried 3 different sim cards, hard reset etc.
Filed a return and her new phone is working as it should now.
Click to expand...
Click to collapse
Your wife is lucky.
I've read on the link i posted that a guy rma 3 time with the same issue ....

If someone figures out a fix, please let me know. I am getting desperate here.

Been eyeballing the device ...from LTE to No Service..back to H+ than picking up signal again rotating for about 4-10 mins
Now I'm testing out turning off adaptive connectivity under network and internet sitting inside my office now.

Fixed on my end.
Settings> Network and Internet> Setting bolt icon next to my mobile carrier (T-Mobile)> Access Point Name> Created my own with the same settings from my carrier (T-Mobile) but with "APN type" only having: default,supl,mms,DUN
The rest of the APN stuff seemed to break my mobile data.
Hope this works for others too.

mkhcb said:
Fixed on my end.
Settings> Network and Internet> Setting bolt icon next to my mobile carrier (T-Mobile)> Access Point Name> Created my own with the same settings from my carrier (T-Mobile) but with "APN type" only having: default,supl,mms,DUN
The rest of the APN stuff seemed to break my mobile data.
Hope this works for others too.
Click to expand...
Click to collapse
Interesting. Did you contact T-Mobile or Google and asked about this?
This seems like the type of issue that should be easy to replicate.
I would suggest to contact Google either way, since your phone might have a hardware issue (partially defect antenna or whatever) and you need to sort this out, before you run out of warranty and get problems later down the road (fix not working anymore).

mkhcb said:
Fixed on my end.
Settings> Network and Internet> Setting bolt icon next to my mobile carrier (T-Mobile)> Access Point Name> Created my own with the same settings from my carrier (T-Mobile) but with "APN type" only having: default,supl,mms,DUN
The rest of the APN stuff seemed to break my mobile data.
Hope this works for others too.
Click to expand...
Click to collapse
So do you mean go into SIM card network page where you can see APN volte etc....under APN and create a new APN but with the exact same setting from the carrier ?

mkhcb said:
Fixed on my end.
Settings> Network and Internet> Setting bolt icon next to my mobile carrier (T-Mobile)> Access Point Name> Created my own with the same settings from my carrier (T-Mobile) but with "APN type" only having: default,supl,mms,DUN
The rest of the APN stuff seemed to break my mobile data.
Hope this works for others too.
Click to expand...
Click to collapse
This worked for me. Thanks bro!

I started by turning off 2G. Worked for about 3 or so days. Then the issue came back. So, I turned off WiFi calling because I read somewhere that it was causing issues. I haven't had the problem since. It's only been a few days though. FYI I'm on Verizon.
I'm pretty sure it's yet another bug on the long list of them on this phone..

Go into settings > Network and internet > Sims click your provider there scroll down to Preferred network type change to LTE. I figured this out on my wife's phone. You'll loose 5g but it'll get you by temporarily until you figure out a better solution.

Question APN Settings?

Hey,
I've successfully added an unsupported eSIM to my Pixel Watch.
My issue is that my carrier requires custom APN settings, so currently I can only make phone calls, but have no data..
When I go to the mobile data settings on my PW, I can see an entry for APN, but it's just an empty menu.
Any way of customizing those settings?

Could you
Shebee said:
Hey,
I've successfully added an unsupported eSIM to my Pixel Watch.
My issue is that my carrier requires custom APN settings, so currently I can only make phone calls, but have no data..
When I go to the mobile data settings on my PW, I can see an entry for APN, but it's just an empty menu.
Any way of customizing those settings?
Click to expand...
Click to collapse
Could you elaborate on how you added an unsupported eSim?

ReDeViL said:
Could you
Could you elaborate on how you added an unsupported eSim?
Click to expand...
Click to collapse
Ordered an eSIM from Vodafone Germany online. After adding the eSIM I was able to add a plan to my watch via the app.

Same eSim now in the watch but no APN and I can't edit or add one.

A long time ago I had problems with APNs for my prepaid carriers not being in android's APN database and would have similar problems (calls only, no data).
At that time, Android stored a list of "all" know APNs in an XML files like this: /system/etc/apns-conf.xml
I was able to download an app on the phone itself, open this file and add whatever APNs I wanted. Then later in the phone settings, my newly added APNs would be available to choose from.
Of course, the main issues being the probable differences between android back then and today...plus differences with Wear.
Back in those days, I found that if I put in an AT&T sim card, android would automatically force the settings from the XML or .db file. If you could find out what APN is being used in that file, you could modify it's details. Does anyone know if Wear uses a similar APN file format as android in the past?

Actually, I just found another post where someone was able to access/modify the telephony database in Wear OS 2.0, but requires root.
How to modify your APN to support an MVNO (FreedomPop, etc)
This guide will cover enabling a custom APN to support MVNO's (FreedomPop, Ting, etc) on your LG Urbane 2 for Android Wear 2.0. Prerequisites: Root watch (I recommend this thread) ADB minimal and fastboot Linux system A little bit of SQL...
forum.xda-developers.com

Have you tried turning of WiFi and bluetooth for awhile on the clock to make it get the apn? I have an unsupported carrier on my watch and everything loaded just fine when you disconnected the watch from the phone

lxrable said:
Have you tried turning of WiFi and bluetooth for awhile on the clock to make it get the apn? I have an unsupported carrier on my watch and everything loaded just fine when you disconnected the watch from the phone
Click to expand...
Click to collapse
Does your carrier require custom APN settings?
On my phone i also have to manually enter them.

Shebee said:
Ordered an eSIM from Vodafone Germany online. After adding the eSIM I was able to add a plan to my watch via the app.
Click to expand...
Click to collapse
Did this require using eSIM on phone as well? how did you switch to local eSIM?

Shebee said:
Hey,
I've successfully added an unsupported eSIM to my Pixel Watch.
My issue is that my carrier requires custom APN settings, so currently I can only make phone calls, but have no data..
When I go to the mobile data settings on my PW, I can see an entry for APN, but it's just an empty menu.
Any way of customizing those settings?
Click to expand...
Click to collapse
Hi @Shebee
I've exactly your same issue, I've add my no supported eSim to my Pixel watch using a VodafoneDE esim.
That was tricky but has worked!
The issue is that I found the apn setting page that is blank... have you find any solution in this weeks?
Regards

styno89 said:
Hi @Shebee
I've exactly your same issue, I've add my no supported eSim to my Pixel watch using a VodafoneDE esim.
That was tricky but has worked!
The issue is that I found the apn setting page that is blank... have you find any solution in this weeks?
Regards
Click to expand...
Click to collapse
Nope, seems they just haven't implemented that feature in wear os...

Shebee said:
Nope, seems they just haven't implemented that feature in wear os...
Click to expand...
Click to collapse
Have you abandoned this task? Or maybe you have choice a carrier that may work without any apn settings?

styno89 said:
Have you abandoned this task? Or maybe you have choice a carrier that may work without any apn settings?
Click to expand...
Click to collapse
Yes i have abandoned this for now. I don't want to bother switching just for the smartwatch.

Hello. I activated LTE on the watch. But the APN is incorrect. LTE works partially. Notifications come, YouTube music works (without connecting to the phone and wifi of course). But google assistant does not work, writes: "No internet connection". Why can this be so?

I think I understand why the Internet is so bad. In the APN settings, a proxy server is specified, which is no longer used by the provider. Is there any way to edit the APN?