Can't connect the 3g networks - Captivate Q&A, Help & Troubleshooting

They just rolled 3g into my small Michigan town and all of my friends are able to pick it up but my phone only has a little 'E' instead of '3g' by the data bars. I notice when I go into my options the options 'use only 2g networks' is always ticked, even if I untick it, it'll magically come back. I don't remember installing any apps that would mess with that as I'm running a fresh, new version of cyanogen 7.

I've never been on CM, but I remember reading that people had troubles with HSUPA on CM. I think it had to do with making sure it was enabled before flashing CM7. I would suggest going back to stock, verifying you have 3g, then re-flashing CM.
Sent from my Cappy

Even when I was on stock, or any other ROM for that matter 3g wouldn't work.

Then contact ATT, if you are sure it doesn't work on stock. If that phone has less than 1 year they probablyy will replace

Related

ATT 3g problem?

Just got the Tilt a couple days ago and didnt hesitate to go ahead and put duttys 2k8 rom on. The radio is 1.127.12.11. Ive got 3g/hsdpa in my area, and was working just fine. Until last night, all i get is edge. My roomate has 3g and its working just fine on his phone, but all day nothing for me no matter what i try. i installed a couple of programs but nothing that should mess with the internet. Maybe it was something Kaiser Tweak done, that would be the only thing i could think of messing with the phone?
I find it weird to just stop all of a sudden, anybody know registry settings or maybe att settings that may have accidentally gotten changed? I have searched all last night and day and have gotten nowhere. Thanks.
I'd say that if you haven't done much to it yet, do a backup, then a HARD reset. See if it works stock, then restore your backup. This might be the quickest way to see if it's something you did. There are settings in kaiser tweak, and comm manager, and possibly even phone settings that can force the phone to EDGE.
Good Luck
Tried the hard reset already, but it was a no go. I set everything in kaiser tweak to default even, but nothing. Can there be something in the registry forcing it to stay edge?
Under phone settings, do you have your band set to auto, gsm, or wcdma? i normally leave my settings to gsm, unless i plan on browsing the net, then i switch to wcdma for the 3g/H speeds, then switch back to edge when i'm done.
zetajunkie said:
Under phone settings, do you have your band set to auto, gsm, or wcdma? i normally leave my settings to gsm, unless i plan on browsing the net, then i switch to wcdma for the 3g/H speeds, then switch back to edge when i'm done.
Click to expand...
Click to collapse
ive had it on auto since ive had it and it worked just fine. But i just changed it to wcdma (which took like 2 min of a wait screen) and now it works! Something so easy, i feel stupid. Am i going to have to switch it back and forth in 3g/gsm only areas? I thought it was supposed to pick up 3g over edge if you have 3g on?
thanks zeta
heh, no clue really. when i originally got the phone, this was my solution to make calls/texts. it would spend so much time switching on auto that i'd never get to complete a call or receive sms. i eventually switched radios (.19, and now on .32), thinking that it would help. i've read speculation that it is also related to carrier hardware issues. I figure manually switching between gives me the best battery life. there are a few cabs floating about that do the switching for you, if you are so inclined, but i like manually seeing that it gets done...
glad my days of frustration eventually helped someone...

3G Connection Issues on CM 4.2.7.1

I am having a very strange issue:
Whenever I am at home, and my G1 is connected via 3G, I cannot use data or make/recieve calls. If I enable the "Use only 2g networks" checkbox, it reconnects via EDGE and works perfectly. I currently have a service request out with TMO which should resolve in the next 24-48 hours, but I was wondering if anyone had heard of this issue.
TMo has no idea why I'm not getting signal, the problem continued even when I reverted to stock "Cupcake".
Things I've tried:
Reverted to stock firmware and unrooted phone (Didn't work; same symptoms)
Call T-Mobile, they removed and re-added me to network. (Didn't work; same symptoms)
Swapped SIM card at T-Mobile store (Didn't work; same symptoms)
T-Mobile service request in my area (Results pending)
Things I am going to try, but haven't yet:
- Return to stock firmware, reinstall CM 4.2.7.1
- Try an older CM like 4.2.4 or 4.2.5
- Connect to WiFi for data connection, see if this replicates the problem as with 3G
- Enable data roaming.
The fact that it only happens at home leads me to believe it's not a problem with the phone, however I'm more than willing to do more to rule it out.
Phone Specs
T-Mobile G1
Firmware Version 1.6
Baseband Version 62.50S.20.17H_2.22.19.26I
Kernel Version 2.6.29.6-cm42 [email protected]
Mod Version CyanogenMod 4.2.7.1
Build Number DRC83
Dont tell T-Mo that your rooted thats a big mistake right there, that can be used against you if you ever have to get the phone replaced.Play around with the apn settings and make sure "always on 2G" isnt checked in settings. Maybe your house isnt in the small 3G coverage area, or your phone cant connect to it. Why would you think data and talking at the same time would be possible? Its either you answer or you stop browsing the web.
Ace42 said:
Dont tell T-Mo that your rooted thats a big mistake right there, that can be used against you if you ever have to get the phone replaced.Play around with the apn settings and make sure "always on 2G" isnt checked in settings.
Click to expand...
Click to collapse
Yes, thank you, I know not to tell them that, they have zero idea. I also forgot to mention they did swap out my SIM card at the store.
Read what I posted. Turning on "Always On 2G" is the ONLY WAY I can make calls and use data at home. When that isn't on, the phone says it has a 3g connection with four bars, but will not dial out, take calls, or connect to web pages. I've also verified my APN as epc.tmobile.com which is correct, and this affects my voice and data communications.
deviant749 said:
Yes, thank you, I know not to tell them that, they have zero idea. I also forgot to mention they did swap out my SIM card at the store.
Read what I posted. Turning on "Always On 2G" is the ONLY WAY I can make calls and use data at home. When that isn't on, the phone says it has a 3g connection with four bars, but will not dial out, take calls, or connect to web pages. I've also verified my APN as epc.tmobile.com which is correct, and this affects my voice and data communications.
Click to expand...
Click to collapse
Try another rom to confirm you cant get 3G, it could also be HW failure.But just try a older cyanogen or something else.Ive cant get a 3G signal with cyanogen roms for long but with a hero rom i seem to get 3G(maybe its my imagination)
Ace42 said:
Try another rom to confirm you cant get 3G, it could also be HW failure.But just try a older cyanogen or something else.Ive cant get a 3G signal with cyanogen roms for long but with a hero rom i seem to get 3G(maybe its my imagination)
Click to expand...
Click to collapse
It fails on both stock (untouched, unrooted), and CM. I'll try an older CM just in case though.
deviant749 said:
It fails on both stock (untouched, unrooted), and CM. I'll try an older CM just in case though.
Click to expand...
Click to collapse
Ok post results when you finish.
Ace42 said:
Ok post results when you finish.
Click to expand...
Click to collapse
Rebooted phone between each of these tests:
3G With WiFi enabled: Same result, can't dial out.
Data roaming enabled, Wifi Disabled: No signal at all, 0 bars with "X" symbol.
Stock firmware: 3G won't dial out, forcing 2G works.
Downgraded to CM 4.2.4: Same symptoms.
Ace42 said:
Dont tell T-Mo that your rooted thats a big mistake right there, that can be used against you if you ever have to get the phone replaced.Play around with the apn settings and make sure "always on 2G" isnt checked in settings. Maybe your house isnt in the small 3G coverage area, or your phone cant connect to it. Why would you think data and talking at the same time would be possible? Its either you answer or you stop browsing the web.
Click to expand...
Click to collapse
What ! if you have 3G coverage you can talk and access data at the same time.
That is what 3G provides.
rdfry said:
What ! if you have 3G coverage you can talk and access data at the same time.
That is what 3G provides.
Click to expand...
Click to collapse
I only get edge sorry, i know when i had Evdo(sprint) i could do both things.Just stay with edge then, youll save a lot of battery life.
Ace42 said:
I only get edge sorry, i know when i had Evdo(sprint) i could do both things.Just stay with edge then, youll save a lot of battery life.
Click to expand...
Click to collapse
That's not what I'm trying to do! When I am at home, on a 3G connection, I cannot do ANYTHING. That includes text, voice, data, web, ANYTHING. If i force it to use Edge, all services work properly. This is not acceptable. T-Mobile's coverage map lists me as in a strong 3G area. It SHOULD work.
I dont know what to say, except stay on edge, you alreadt sent a req to tmo.
I am having the exact same problem. Would love to learn what you found out.

AT&T Constant roaming

I have the AT&T Captivate and got it about a month ago. With stock rom I am never roaming at home and get 3-5 bars always while with different roms I've tried are Phoenix 4.1, Perception 10.2, Cognition 3.2 and Serendipity 4.3 and usually only get 1-2 bars max so phone always goes to roaming on T-Mobile which I can't do data then. I have tried going in and selecting to use AT&T network but once I leave the house I get same issue and then it locks out voice till I set it to another tower. Is there any recommended settings I should do?
I also did just replace the SIM card and that helped a couple other issues I had but still get same roaming issue with it. I have not tried flashing a new modem to any of the roms, since always seeing stuff of use JK3, JK4 etc.
With the old Tilt2 phone using Energy Rom software I never had reception issues using latest radio for that.
Try flashing the modem. The 2 i recomend are ugjl2 and nkp1. I have run into the same issues with various modems. If you can flash a rom, a modem will be a piece of cake. Will attach in a few
I'm having this problem too. Tried loading JL2 and KP1 (2 different versions) and still roaming. Beyond that, getting some random call silences and drops. Guess I'll be loading random modem drivers until I find a good one.
EDIT: I just figured out how to make roaming turn off. I'm in a GSM-only area. I went into the phone app, typed *#2263#, chose GSM, then chose 850 only. It took a second but then picked up a great ATT signal. For some reason, the phone was preferring to roam on 1900 (seen using *#0011#). Not sure what effect this will have if I go somewhere else, but I work from home so my location is pretty static.

[Q]Odd signal issue

Ok, so I know it's not the csc, or the rom, or the apn settings, or the modem, or the band selection. It's not an app, or even a signal issue. It's not the service or network selection. Wiping didn't help nor did a factory reset. Every time my phone connects to an edge network, it won't connect to an hsdpa network without me going into settings, wireless and network, mobile networks, wcdma only and then back to gsm and wcdma. Any suggestions?
Anyone that comes up with a half-way decent suggestion gets a Thank You....
I'm guessing that no one has come across this before? It's not like it won't connect to HSDPA, it's just that it won't connect automatically. Believe me when I say, I've searched samsunggalaxysforum, google, and xda for a solution so I don't think this is a problem that has been posted here as of yet. Forgive me if it is and lead me to it....
Bump.
I don't think enough people have seen it before it slips into the nether regions of the forum.
I changed HSDPA revision to option 2 in band selection (HSDPA/no HSUPA). It worked off of airplane mode, which it hadn't done before but the same issue persists. When I get to work (where there is a clear HSDPA signal) from home (also clear HSDPA) it's on EDGE. During travel or when the HSDPA signal is not available, it'll just stay on that **** EDGE network even when I get to an HSDPA area.
Same problem on a clean stock rom ???
jje
Come to think of it, I'm not sure. HSDPA is new where I live but not where I work. I did, however, do a repartition in Odin of the JS3 firmware and then a wipe with Darky's 9.2 and 9.3. Of course I didn't really stick with JS3 for very long before flashing to Darky's ROM but this isn't a problem inherent in the ROM itself or others would have reported it. Furthermore, I've switched between kernels, file systems and modems and yet the problem persists. I haven't enabled any tweaks with any kernel I've used either so that shouldn't be an issue, should it?
Maybe try this.
Dial *#*#4636#*#* ->
Go to Phone Information -> and perhaps play with the Preferred network type?
If noen of your efforts have resulted in anything meaningful, the suspicion goes to your operator.
Hope this helps.
i have the exact same issue although 3G is available in my area when it once logs into edge mode it doesnt wanna change it. only when i restart the phone it logs onto 3G again.
pretty annoying
maik
You can go into wireless and settings, network settings, wcdma only, and then back to wcdma and gsm and it'll connect to 3g or H. At least that way you don't have to restart the phone every time it does it. The main thing is finding out what can fix the issue.
For some reason, the phone information settings don't stick. I've tried to use wcdma preferred but it just goes right back. The other code settings, on the other hand, work just fine.
Sent from my GT-I9000 using XDA App
I'm wondering if it may be a sim card problem rather then a phone problem. I'm thinking I should try my girlfriend's sim. I'll report back when I see if that's the problem. It'll be after work though so feel free to come up with other suggestions. I plan to do a write up in general, [resolved] if we figure out the problem so people with this issue can know what to do.
Sent from my GT-I9000 using XDA App
Not the sim. I also contacted my service provider to get a push of their latest update with tower location, it's not prl on gsm it's id-something-something. No change there really as far as the signal issue goes. I also checked my provider website just to see how much data I had used, not even close to the cap on unlimited.
I think i'll have to try a flash on odin with repartition to a stock firmware and then work my way back to see what may have caused the problem. It's a shame, really since everything else on the phone works phenomenally, it just won't auto connect to hsdpa which is spotty in my home and work area so it's a bigger pain in the neck then it needs to be if it won't switch between the two on it's own.
Sent from my GT-I9000 using XDA App

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.

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