I think I have a very weird problem with my unlocked AT&T Galaxy Tab. I can send and receive message using my monthly data plan SIM card from AT&T. But the problem is I cannot use this SIM card to access to internet browsing. I tried to configure APN setting following some posts here and I found elsewhere, unfortunately they all didn't work for me. I use Canada Bell I9000 modem band and not sure if this is the reason. I rooted my AT&T Galaxy to unlocked European version.
Thank you
I have the same problem I'm in the US, and I put my att sim in my unlocked international G-Tab, and at first it worked fine but after a while it stopped. But what I don't understand is I can make calls and send text messages but no data. It is rooted using superoneclick I tried fooling with the APN settings as well but nothing.
Hmm maybe this is the problem I ran into as well. I have an AT&T Galaxy Tab, and I flashed it to Overcome, and also tried DXJPE. Using either of those, after adding the Broadband APN, it would work but then the data would randomly stop working.
In order to get it working again, I'd have to do one of: (1) reselect the APN (2) toggle airplane mode or (3) reboot. It didn't always seem consistent which one of those was necessary.
I tried numerous modems and never managed to resolve the issue.
I recently have been trying to return to stock to see if that would solve the issue, but it turns out once you've flashed off of AT&T stock, as far as I can tell you can never truly go back, since we don't have working bootloaders. I've managed to get it back to mostly stock, but with corrupted bootscreens and recovery, but apparently everything working once booted, and I haven't seen these problems with the APN since then. However, the problem was so random it's hard to know if it's gone for sure.
Does this sound like the same problem?
Related
a quick history of what I've done so far
Sumsung I897 captivate from ATT unlock and being used on Telus network was working great for about 4 days, then all kinds of problem started cropping up.
Phone came unlocked, I rooted using update.zip from xda, installed rom manager and started removing ATT bloatware, entered SMS and APN info which worked fine.
Yesterday I noticed that where I once got good reception I was now getting nothing and would have to drive down the street before I would get something descent. I thought maybe I'd put it back to stock with rom manager and see if that would help which it did not. It actually made it worse, decided to go all out and use the Odin3 one click downloader just to make sure I was back to stock firmware. This didn't work either but now I can enter the SMS and change the preferred network type but it doesn't save. Preferred network type is grayed out and even though I can change it it never save same as SMS.
Now I can't hold connecting in my living room where my wifes Milestone gets full bars. I tried taking the phone to where I had the best signal and change the preferred network, SMS, and set the network operator but it doesn't save any info, can't find on operator half the time on manual or auto and gave me an error and logged it to #*9900#
I've been at this for 2 days straight and can't figure out how to get it right back to stock, it seems to keep hanging onto the same preferred network and not saving anything I enter.
What can I do to get back to stock, and it has to be something that wipes everything clean, clean, clean, because even the GSM disconnects stay logged under *#*#4636#*#*
***I desperately even tried pulling the batt and SIM card for the night in hopes that would do something.
So, if I'm understand what happened correctly, you bought an unlocked Captivate, rooted it, deleted some bloatware, entered your Telus APN info and everything worked awesome for about four days. Now everything has gone down the hole. Is that right?
If that is the case, then we need to figure out what changed. Using Odin3 would have definitely put you back to stock/unrooted your phone, I don't think you could go back any further than that. If I were you, I would act like I first got the phone. As in, I would do everything you did to it, as if was day one. At one point, everything worked fine. Try to recreate that. You can always look into exchanging it or perhaps Samsung customer support can give you a little more insight to what's going on. Here's the number if you want to try them out.
Samsung customer service - 1.800.726.7864
Thanks, I've gone through the process a few times today from start to finish trying to figure it out ... maybe some of the problems aren't real problems and just limitations that I didn't know where their. I've since flash with odin3+re-partion to the bone stock i897UCJF6 as in not the one click method. It loaded fine but still have the same issue, I can't set preferred network type or get it to keep the number entered into SMSC. I think if I can get passed that I'll be be one the up side of winning. I keep noticing that the log of GSM disconnects never clears or the usage statistics under *#*#4636#*# , I'm thinking its in the same area that other bad data is being held onto instead of being cleared when flash firmware or factory reset.
Is anyone able to change preferred network type? maybe I was never able to change it but I think I should be able too.
I may be wrong in assuming this but I don't think ATT is going to be interested helping me connect one of their handset that I'm trying to use on foreign network, but I could be wrong and is an open option.
*#*#197328640#*#*
debug screen
phone control
network control
band selection
wcdma band
wcdma all
menu->end
used this to lock my phone to WCDMA only so that problem is solved
*** never mind posted to soon it still didn't stick after rebooting
be carefull using the service menu as I have no idea what most of this stuff does
I got the SMS service number issue fix by taking out my sim, swapping in another known working sim from the same network, setting the service number, pressing update and then swapping back. Before every time I tried to update the service number it spit out an "update error" can anybody tell where the SMS config data is stored? on the phone or sim.
The only problem I'm having now is with reception which maybe fixable if I can set the preferred network to WCDMA only. But the button for that option is a light blue colour vs other phones that I can change this setting on. Does the blue mean anything like a locked function or something that set by the firmware as unchangeable?
Hi All,
I had a strange issue happen to me last night. but first some background. I bought a Bell locked phone and unlocked it to work under Rogers. It worked for well over a month without any problems. I never flashed any roms of anything like that, just rooted and unlocked it. All of a sudden last night the phone would not recognize my rogers sim card anymore. I tried to enter in the unlock code but it would not recognize it. I went to the APN settings and they were blank. Entereing the correct APN settings would not matter as they would not be saved.
I tried formatting the whole by doing a factory reset but that did nothing. I tried searching for fixes but the only thread i found that had any solutions was this one forum.xda-developers.com/showthread.php?p=9069113#post9069113 - after pulling that file i found i did not have that paramater at all.
I now have no idea what to do and am stuck. Any help would be greatly appreciated.
any help would be greatly appreciated.
no one knows anything? im stuck with a phone that can do everything except make phonecalls
was lucky enough to find this topic:
http://forum.xda-developers.com/showthread.php?t=804724
fixed my problem.
APN setting wont save
Hello
I have recently loaded the FRX04 updated os for my touch pro2 (rhodium) and cannot seem to get an apn settidng to save therefore cannot get a mobile network to work.
I am currently running off wifi but cant make outgoing calls or do pretty much anything with the sim card
I have tested two sim cards in the phone (which was originally on vodafone) but when it was running the windows platform it is fine with any network.
I read somewhere that it may be a bug in the mnc field which is why it wont save a new apn?
I have looked at downloading the SGS unlock tool but i dont think this is the issue
any suggestions will be appreciated
I bought a second hand GT-I9305. After the first boot I dicided I wanted to flash it with the CM nichtly. I first rooted the stock rom, flashed a recovery and then flashed CM. Now the problem is the I can't make calls. When I dial a number the phone responds with 'call ended' before it even starts.
I don't know if the phone worked to begin with, the first thing I did is flash it.
I've tried different roms now and reverted back to the 4.3 factory image. None of that fixed the problem. I've also tried putting to 2 or 3G only which didn't help either. My phone still shows an imei number.
I'm completely aware of the fact that I might have done something very stupid. I flashed android devices before but I'm the type of person who reads the manual when it's to late.
Does anyone have a suggestion on how to solve this problem?
I'm usint T-mobile on the EE network in the UK.
Problem still unsolved, more information
I'm giving some more information as the problem isn't solved yet.
I'm on a Pay as You Go sim that works fine in another phone (HTC Desire S). I've now also try to downgrade to 4.1.1 but still no luck. I've also tried different sims but the problem occurs with those sims as well.
The phone looks to be registered to the network, at least that's what it shows. Also, data works, I get a 3G and H+ connection,
I'm more than happy to provide more information. Any help is greatly appreciated.
SIM unlocked? Google xda sim unlock GT-i9305...
Phone not locked
Thanks for your reply. The phone is already unlocked.
IMEI blocked? If you're in UK try www.checkmend.com/uk/ it'll cost you 1.99 but might save you time & effort...
Hello there,
First time poster. I've had a hell of a time trying to figure out this problem with my LG L90 D415, updated to the latest version of Lolipop, which I bought advertised as "unlocked" off eBay and intended to use with Consumer Cellular (CC), a virtual GSM network using bandwidth from the AT&T and T-Mobile networks. Such a phone is supposed to work on their network. It is now rooted and ready to go. However, I cannot change the APN settings to use data. Under settings, if I try to create a new APN with a different MNC number, the new APN will automatically be deleted. The phone is supposedly unlocked, and does seem to be so as it accepts the CC sim card and I am able to send and receive calls with it. It is now rooted using the one-click script by avicohh method.
As a side note, I also cannot send or receive text messages from anyone other than a friend who is on T-Mobile. I've contacted CC's tech support and they swear its the fact that the APN is still locked on the phone. I therefore plan to fix this problem so I can add the CC network's APN to see if it makes a difference on my phone.
I have since rooted the phone using the one-click method. I was even able to delete the T-Mobile APN entry by using a combination of BusyBox, /system/app mover, and APNManager apps. However this does not stop any APN without the T-Mobile MNC from being auto-deleted in Settings -> Mobile Network - APNs.
I have downloaded and installed the Android SDK suite in anticipation of flashing a rom onto the phone as a last resort fix. However, I cannot find a link to a rom for the D415 which I am certain does not contain the T-Mobile firmware and bloatware on it, neither on LG's website nor here.
I am hoping someone here has heard of this problem before and has an idea of what I can do to fix this frustrating APN problem caused by T-Mobile.
Have you tried this: http://forums.androidcentral.com/ve...41691-mod-add-apn-editor-system-settings.html
itskapil said:
Have you tried this: ...
Click to expand...
Click to collapse
I just tried it. No luck, but thank you for the link. Looks like it applied to the same problem, but solved it only for an older version of Android. It will not work with my phone which has Lolipop. My problem is that the new APN entries get auto-deleted, not that they are greyed out as that link described.
I have contacted LG and T-Mobile technical support, and they keep pointing fingers at each other and cannot help me. After much insistence, T-Mobile has suggested that I go into one of their stores to solve the problem, and if a support tech cannot help me there, then I should return the phone to the vendor, which is what I intend to do.
If anyone has a clue how to unlock the APN settings on this phone, please help!
Hello,
I have SM-N9208 with T-Mobile(personal) and ATT(work) sims (build number NRD90M.N9208ZTS3CQK1 just updated) and I have been having call issues when I try to use T-Mobile sim.
When try to make a call using T-Mobile sim, most of the time either me or the other party cannot hear each other when the call gets connected. Some times call does not even go through and some times it connects just fine!
I had replaced the T-Mobile sim, tried with ATT sim out, tried with headphones and bluetooth but issue/s remains. I just updated the phone with above build but still no luck! I did not root this or flashed with any rom (factory or otherwise) thus far. All the updates were always done through wifi. A few days ago I had also reset this to factory default and erased everything and I installed everything from play store with out restoring from backup. Nope that did not solve the issue either! I also notice now that when call is ongoing with on T-Mobile sim and if data is set to T-Mobile, I see E instead of 4G! By the way I am in northern NJ( not sure if T-Mobile is changing something on their end). Any call plased through ATT sim goes fine whether it is SIM1 slot or SIM2 slot.
Has anyone ever seen this and any help is greatly appreciated.
Also, can I load firmware from another country (say Philippines since I think my current firmware is Tiwan)?
Thanks,
Chuck