Database Users

serious 3G/EDGE issues with my G1

I have a rooted G1, iam running JF 1.42 RC33, i also have RC33 Radio.
i live in Chicago in a place where the 3G coverage is pretty good. in fact a month ago i was having perfect reception on my G1.
recently; i am having many issues with the data link (3G, EDGE)
simply, the phone does not pick the data link properly, and even if connected, it might drop the connection.
sometimes i have to go to settings, wireless, mobile networks, and click on "use 2G only" a couple of times to trigger the phone to connect... it will drop the connection when it goes to sleep !!!!
i have noticed that many times when the phone sleeps, it does not switch properly between the wifi and 3G [or EDGE], so i dont get my emails.
sometimes a reboot solves the problem, and some times it does not
i tried to flash the radio image again,,,, it didnt solve the problem.
any help will be highly appreciated.

If you've tried to reflash you radio and the results are the same it may not be your phone. It may be the network itself. You should call TMo to see if they have any issues in your area. About a month ago half the country went out for also half a day. It's rare but it happens. If no one else is having issues then it's possible the problem would be with the phone. You could try a wipe and/or reflash but it probably won't make any difference since it sounds like the radio (which you already tried flashing). Maybe also try checking to see if turning off data roaming will make any difference.

thank you for your response:
iam having this issue since a couple of weeks,, and i dont think it is a network issue.
i have tried to disable/enable data roaming,,,, it didnt help.
am i left to a "wipe" only.. ????

well you can give that a try and if that doesnt solve your problems then it may actually be a defect with your phone. also... ive had issues that my phone would lose data and voice even while i was on the phone. it would just disconnect then say no service. the problem wasnt my phone though... it was my sim card. if that sounds more like your problem you can get a new one for about $20 through a tmobile store.

i didnt encounter any voice call drop issues.
when i wipe, i will need to reflash everything, right?

I live in the chicago area as well and my edge/3g has been off and on like crazy over the past 4 or 5 days. I will look at my phone and it won't have an E or 3G. I'm running jv1.42rc33 with apps and caches to sd card. I'm not sure if its a network problem or my phone itself.

So you both live in the Chicago and are having issues with 3G/Edge and you doubt that it's a network problem??? I hope you didn't do your wipe yet.
I'd call T-Mobile and ask to speak with their data support (Tier 3) group and verify that it's a problem with your handsets before you do anything (like reflash, wipe, etc).

i live in chicago as well.
T-Mobile was/is having 3g network issues. T-Mobile where not aware of the issues. They say they are on the issue to solving it. :

Binary100100 said:
So you both live in the Chicago and are having issues with 3G/Edge and you doubt that it's a network problem??? I hope you didn't do your wipe yet.
I'd call T-Mobile and ask to speak with their data support (Tier 3) group and verify that it's a problem with your handsets before you do anything (like reflash, wipe, etc).
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I didn't explain myself well there. I'm under the impression it is a network problem. I learned my lesson last time there was an outage. I did like three wipes in four days thinking it was my phone.

It isn't you - my 3G (also Chicagoland) has been up and down since Wednesday. It is completely down again this morning. All day yesterday it was probably up for no more than an hour.
F'ing T-Mobile made me wipe my phone, then drive to the local store to get a new SIM, and they refused to acknowledge that it was a network issue. The sales rep at the T-Mobile store was having the same issue.

gottifour said:
I did like three wipes in four days thinking it was my phone.
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DOH! That sucks! LOL. If you're referring to the outage that we had about a month ago I took the liberty of posting a thread on here warning people not to wipe because they might not be able to sign in because of the network issues. There were so many that did and I was almost one of them myself until I wised up and decided to call first.

hello guys,,, thanks for everybody who in contributing in this thread.
i can see iam not the only one having issues in Chicago, t-mobile said they had no problems,,,,
what makes me tend to believe them is sometimes if i play with the phone the 3G shows up,
this is an experiment for you to try (it worked for me):
enable tethering using the open source gui, then disable it again.... 3G shows up !!!! even if you enable wifi... the phone will switch properly between wifi and 3G (when sleeping).
it worked for me last night and is still working now.
if you guys try it and it works,, this means t-mo has no problem,,, and we need to figure out what is wrong with the combination/configuration we have...

gottifour said:
I live in the chicago area as well and my edge/3g has been off and on like crazy over the past 4 or 5 days. I will look at my phone and it won't have an E or 3G. I'm running jv1.42rc33 with apps and caches to sd card. I'm not sure if its a network problem or my phone itself.
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Click to collapse
gottifour: i have the exact same configuration on my phone as yours, and iam in chicago.... please try the tethering experiment and let me know what you get,,,,,, thanks

same exact problem here...and i live in CHICAGO also. =/
hope this gets resolved soon

today, iam not having any problems connecting to the 3G.
is it the case for everybody in Chicago?

ajarmeh104 said:
today, iam not having any problems connecting to the 3G.
is it the case for everybody in Chicago?
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Click to collapse
Actually i noticed its been on and working all day also. maybe its been fixed?
i hope so...

this problem is driving my crazy,,,,
today i have no data connection (except for the wifi)
still not sure if it is t-mo problem or my g1

i just called t-mo and they told me to turn off the phone, take the battery out, put it back on..... and it worked,
now it is working!!!!!

4G/LTE issues since unlock.

Im on stock Rom[MF9] + rooted and got the phone officially unlocked through Sprint recently.
Since then, the phone hardly connects to 4g, its almost everytime connects to 3G only and speeds are very bad!!
I tried ##72786# reset and prl/profile update from system options and it hasnt been of any help.
Please suggest any way to troubleshoot this.

Change the mobile netowkt to just CDMA and see if that helps with 3G speeds.
Sent from my SPH-L720 using Tapatalk

That worked to stabilize the 3g speeds.
But still wondering what went wrong that my phone even wont connect to 4g anymore!...
I'm checking couple of options since yesterday. If anyone got any suggestions other than resetting it to stock, please let me know...

you might also check and make sure that the unlock didnt clear out your LTE apn's......its not common but ive seen it happen before.

The issue is finally fixed and data speeds are back normal. I tries couple of things and not exactly sure which one fixed it.
Started off with cross checking all the entries of ##DATA# with another S4. --- this was ok
But noticed the APN kept going back to eHRPD.
I then got a APN manager app from play store and forced the APN to point to the correct profile and also cleared the LTE_available file in ##DATA#.
Once this was done, the phone connected to 4g shortly and is now working normally.

VoIP over mobile network problem

The details:
So I recently acquired my Nexus 4 on the T-Mobile $30 plan, coming from it's brother the Optimus G on Sprint.
It is rooted and running CM11 and I have been using Spare Phone and GrooveIP for VoIP calls with no problems whatsoever. I finally decided to pull the trigger and use the Play Store app to add LTE support since my area supports it. Got that working too so I'm feeling good, but I realized shortly after that I cannot make a VoIP call over data now. WiFi still works perfectly, but on data it will ring and connect but there is no audio sent or received from either party.
I reverted back to my working backup with no luck so I did the adb/fastboot method of returning the phone to the stock image and then rerooting, reinstalling the rom and then testing VoIP over data and still no luck. I then proceeded to reinable LTE and it works again.
So in short, I tried to revert to stock modem and APN settings with no luck, but I am currently on the .98/.33 hybrid modem with the fast.t-mobile apn settings again. Also not sure if something in the *#*#INFO#*#* menu could have messed it up, but that's why I reverted to stock...
The question:
Is there any other reason all of my VoIP apps would stop working over mobile data, but still work on WiFi?

highnoteuser said:
The details:
So I recently acquired my Nexus 4 on the T-Mobile $30 plan, coming from it's brother the Optimus G on Sprint.
It is rooted and running CM11 and I have been using Spare Phone and GrooveIP for VoIP calls with no problems whatsoever. I finally decided to pull the trigger and use the Play Store app to add LTE support since my area supports it. Got that working too so I'm feeling good, but I realized shortly after that I cannot make a VoIP call over data now. WiFi still works perfectly, but on data it will ring and connect but there is no audio sent or received from either party.
I reverted back to my working backup with no luck so I did the adb/fastboot method of returning the phone to the stock image and then rerooting, reinstalling the rom and then testing VoIP over data and still no luck. I then proceeded to reinable LTE and it works again.
So in short, I tried to revert to stock modem and APN settings with no luck, but I am currently on the .98/.33 hybrid modem with the fast.t-mobile apn settings again. Also not sure if something in the *#*#INFO#*#* menu could have messed it up, but that's why I reverted to stock...
The question:
Is there any other reason all of my VoIP apps would stop working over mobile data, but still work on WiFi?
Click to expand...
Click to collapse
A few people including myself have been discussing this issue in the thread I linked below. We haven't really found much out, though it seems that it is T-Mobile at fault when you consider all of the variables. Here is an argument by user Ztone:
"What helped me was arguing that I know five other users who's issue started happening exactly at the same time and only on T Mobile's network. There are only 4 components to this: the phone, groove IP, Google and T Mobile. It cannot be the phone or groove IP if many others are experiencing the same thing at the same time (not to mention the fact that I had wipe the phone and reinstalled everything clean). It can't be Google because then it wouldn't work on wifi. This leaves T Mobile. My Tech troubleshooter from t-mobile had me delete the data from Google IP and restart the phone. While I had the phone off she did something on her end to refresh something on T Mobile's network regarding data coming to my phone, then after I restarted the phone. It still didn't work, then she asked me to try on wifi and then it worked perfectly. That seemed to be the tipping point, when she escalated it to engineering. Whatever that means. But I was told to give it 72 hours. Yeah, I think we need to make some noise to T Mobile."
http://forum.xda-developers.com/nex...30-prepaid-plan-users-thread-t2001290/page322
So did you say when you re-enabled LTE the calls worked again? If so that would be a good temporary fix.

jjflemin said:
A few people including myself have been discussing this issue in the thread I linked below. We haven't really found much out, though it seems that it is T-Mobile at fault when you consider all of the variables. Here is an argument by user Ztone:
"What helped me was arguing that I know five other users who's issue started happening exactly at the same time and only on T Mobile's network. There are only 4 components to this: the phone, groove IP, Google and T Mobile. It cannot be the phone or groove IP if many others are experiencing the same thing at the same time (not to mention the fact that I had wipe the phone and reinstalled everything clean). It can't be Google because then it wouldn't work on wifi. This leaves T Mobile. My Tech troubleshooter from t-mobile had me delete the data from Google IP and restart the phone. While I had the phone off she did something on her end to refresh something on T Mobile's network regarding data coming to my phone, then after I restarted the phone. It still didn't work, then she asked me to try on wifi and then it worked perfectly. That seemed to be the tipping point, when she escalated it to engineering. Whatever that means. But I was told to give it 72 hours. Yeah, I think we need to make some noise to T Mobile."
http://forum.xda-developers.com/nex...30-prepaid-plan-users-thread-t2001290/page322
So did you say when you re-enabled LTE the calls worked again? If so that would be a good temporary fix.
Click to expand...
Click to collapse
Thanks for pointing me to that thread, I'll read up shortly. This all started for me between Saturday night and Sunday morning.
Re-enabling LTE does not fix it. I actually thought that broke it at first, but since reverting to factory settings didn't fix it I figured I might as well continue to enjoy LTE even if VoIP is broken.

highnoteuser said:
Thanks for pointing me to that thread, I'll read up shortly. This all started for me between Saturday night and Sunday morning.
Re-enabling LTE does not fix it. I actually thought that broke it at first, but since reverting to factory settings didn't fix it I figured I might as well continue to enjoy LTE even if VoIP is broken.
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Click to collapse
Yeah, unfortunately we have no solution yet. I'm in the same boat as you. I'm just glad it works over WiFi.

jjflemin said:
Yeah, unfortunately we have no solution yet. I'm in the same boat as you. I'm just glad it works over WiFi.
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Click to collapse
Tonight I'll test Spare Phone on my wife's (my old) Optimus on Sprint. I expect it will work normally and will report back to rule out the app itself since I will be using my same Google account.

highnoteuser said:
Tonight I'll test Spare Phone on my wife's (my old) Optimus on Sprint. I expect it will work normally and will report back to rule out the app itself since I will be using my same Google account.
Click to expand...
Click to collapse
Confirmed that VoIP on data works with Spare Phone and GrooveIP on other networks.

It appears that I am back in business with no change on my part...

Help getting XT1575 working again while in Japan. Please!

I'm in Japan for a couple of weeks for work and signed up for the Japan pack that Sprint offers. I spent almost an entire week working with Sprint support ( ) trying to get data roaming working properly on the phone without much luck (voice and text worked great), but yesterday I lost all connectivity but wifi. Figuring I must have changed something I shouldn't have, I saved everything I could and did a hard reset on the phone.
It still won't connect to any networks. I've re-downloaded PRL and device configs over wifi in the settings but it doesn't even attempt to connect to any wireless networks, or see any for that matter.
I have 2 guesses here but I'd like some kind of confirmation here before I take any action.
1: Maybe my radio firmware is corrupted somehow? I'm not exactly sure how to check it but it just doesn't seem to be doing much of anything. In the SIM status page it says searching for network, but I have no way to know if that's really the case.
2: Since the phone has a Sprint SIM, does it has to be on an actual Sprint network to initialize the networks? (Not Softbank's network here in Japan?) I spent over an hour on Google Voice with them last night trying to get an answer/help but got absolutely nowhere.
The phone is currently all stock but I have no problem unlocking and installing recoveries/software/roms if need be. Any ideas what I can do here or am I just stuck without communication until I get home next week?

Usually the best route is to get a local prepaid sim while traveling but honestly I have no idea what sprint offers for roaming in Japan. Check your plan and see if there is an add on needed.

I'm not alone!
Also THIS IS STILL AN ISSUE!
It worked fine for me last time I came to Japan, about a year ago. This time, I only have voice and text, no data. Right now I'm backing everything up to do a factory reset.
Did you ever find a solution to this?

I'm not sure if you've already done your factory reset, but if you're on Sprint, don't do a reset. The phone can't reactivate itself off of Sprint towers. You have to be in the US when you do the reset. I was stuck with WiFi only for most of my time there because I reset mine.
I never found a solution other than dropping Sprint when I got back to the states. Switched to Verizon and never looked back, though I'm not sure what I'm going to do for my next trip with their ridiculous international rates.

I actually got it working last night.
Factory reset and restore over wifi
Update device config over wifi -> handles activation
Update PRL over wifi 3 times
Now it works

Oh, I'm glad it worked. Is yours on Sprint?

Yes, but I may have spoken too soon. It worked for a few hours and now isn't getting back on data. I think it may be SIM related, since I saw a weird SIM error pop up and rebooted my phone, which led to the data working the first time

They must have redone their activation system since I had my issue in July. At that time there was no way for the phone to reactivate without being on Sprint's system.
As far as the data, that's the same thing I had happen and they were never able to solve the problem. It would work for a little while then stop for no reason. If you find a solution I'd love to hear it though.

I'm wondering if I can flash a different radio or something

LG G6 - No Data (LG-H872 on T-Mobile)

I recently got an LG-H872 to replace my daughter's old (broken) phone. When I set it up, I let it update for a couple hours... rebooting each time and check-in for new updates. It's completely up-to-date now and 100% unmolested.... no root, no TWRP, etc.
After putting the SIM in, it connects to T-Mobile for calls/texts, but gets no mobile data (only wifi). I've gone through all the mobile data settings, roaming settings, APN, and the like. I've also called TMO to make sure data was turned on for the line (which has happened to me before, when switching phones).
Anyone have issues with an LG-H872 not getting data?

I'm still having this issue and have absolutely no idea how to fix it. I've even tried my sim in the phone to rule out an issue with her account, and it also does not work.

Flapjack said:
I'm still having this issue and have absolutely no idea how to fix it. I've even tried my sim in the phone to rule out an issue with her account, and it also does not work.
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Try factorying it except rooting and installing different firmware that's all i can tell you unless it's a hardware issue