I had this problem running miui, cm7, and now I'm on unnammed. I've used all the modems and still nothing helps. I thought unnammed didn't have this problem? To fix it I haft to flip to airplane mode and back, then its fixed.
Sorry if this has been asked. I'm on taptalk on my phone and I don't know how to search with it
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Could be APN settings. I don't know them off hand, but they are listed in post 2 of the miui thread.
If it happens on multiple ROMs it could also be a bad SIM card. Does it do it on pure stock? If so, try a new SIM card.
Sent from my Galaxy S II (i777)
ok, thanks. ill look them up. this issue is making me want to switch back to my iphone, but hopefully this will fix it cause i like android, just this is getting old
Are you talking about wifi or 3g?
Are you using any battery saving apps like Juice Defender?
ZeroIsntTheHero said:
Are you using any battery saving apps like Juice Defender?
Click to expand...
Click to collapse
This. I haven't seen this issue reported often, and in the past, it's turned out to be an app interfering with the connection. If not, it's likely an apn issue.
randrewm97 said:
I had this problem running miui, cm7, and now I'm on unnammed. I've used all the modems and still nothing helps. I thought unnammed didn't have this problem? To fix it I haft to flip to airplane mode and back, then its fixed.
Sorry if this has been asked. I'm on taptalk on my phone and I don't know how to search with it
Sent from my SAMSUNG-SGH-I777 using Tapatalk
Click to expand...
Click to collapse
I've had the same thing happen to me on other AOSP roms too. On both the SGS2 and my captivate.
I just switched to iscrewed to see if the prob is still there. Its hard to reproduce the bug, but it happens when i go from either:
1. being connected to wifi for a long time and then leaving that area, mobile data doesnt turn back on
2. being in a bad service area for a long time, and then leaving it, mobile data doesnt turn back on.
The worst thing about it is i use google voice for texts, and thats usually how i can tell that it cut out, because i stop getting texts from people.
I love android and google, but honestly if problems like this dont get ironed out, then as long as the next iphone has a decent size screen im probably switching over.
FYI this has occurred when i had the bare minimum installed on my phone, and i never use any ridiculous battery saving apps.
lourivellini said:
I've had the same thing happen to me on other AOSP roms too. On both the SGS2 and my captivate.
I just switched to iscrewed to see if the prob is still there. Its hard to reproduce the bug, but it happens when i go from either:
1. being connected to wifi for a long time and then leaving that area, mobile data doesnt turn back on
2. being in a bad service area for a long time, and then leaving it, mobile data doesnt turn back on.
The worst thing about it is i use google voice for texts, and thats usually how i can tell that it cut out, because i stop getting texts from people.
I love android and google, but honestly if problems like this dont get ironed out, then as long as the next iphone has a decent size screen im probably switching over.
FYI this has occurred when i had the bare minimum installed on my phone, and i never use any ridiculous battery saving apps.
Click to expand...
Click to collapse
Have you tried a new SIM card? My problem was similar, and followed me from one phone to another as you describe. New SIM card fixed it right away.
Sent from my Galaxy S II (i777)
quarlow said:
Have you tried a new SIM card? My problem was similar, and followed me from one phone to another as you describe. New SIM card fixed it right away.
Sent from my Galaxy S II (i777)
Click to expand...
Click to collapse
Wow, i didn't even consider that.
I will be trying and will report back. If this fixes it i will owe you my life!
I might have to switch back to cm7 just to name sure it's the Sim card that's causing it.
quarlow said:
Have you tried a new SIM card? My problem was similar, and followed me from one phone to another as you describe. New SIM card fixed it right away.
Sent from my Galaxy S II (i777)
Click to expand...
Click to collapse
ill try this out tomorrow. just now when checking my email i had to turn on airplane mode and back off to get data to work.
also, i tried the apn settings on the first page of the miui thread and it didnt work. i tried those settings on miui, wiui, cm7, and unnammed but they all made it so that my internet didnt work at all.
so just to clarify, i shouldnt haft to change apn settings and my phone shouldnt be doing this on non stck roms, right? sim is likely the problem? this has gotten really old really quick and its embarrassing when im trying to show my friends something but my phone isnt working.
Your phone should work fine on any ROM you find here. Mine does. I never have to play with APNs, even on miui. I never have to play with airplane mode or power cycle. But, when my SIM was bad I would drop data connectivity all the time. Calls would fail (outbound only), and other glitchy reception issues. Sometimes airplane mode fixed it, sometimes power cycle, sometimes airplane mode on, power cycle, and all times it was temporary. Its worth a try, shouldn't cost anything to get a new SIM. If they give you trouble at the store just tell them you called 611 and they told you to go in for a new one. If that doesn't fix it go warranty route for a new phone.
Sent from my Galaxy S II (i777)
randrewm97 said:
also, i tried the apn settings on the first page of the miui thread and it didnt work. i tried those settings on miui, wiui, cm7, and unnammed but they all made it so that my internet didnt work at all.
Click to expand...
Click to collapse
Those APN settings have worked fine for me on both CM7 and every Sammy ROM I've used. I always have (unrelated) problems with MIUI, so I can't verify that one.
So i went today and got a new SIM. Its been about 9 hours, but no problems yet. Time will tell if it works, but im willing to bet that was the problem, and this is why.
When i went to get my sim, the guy there told me that when ATT started rolling out 4g phones (which includes 3.5g) many employees had trouble with their data switching on and off until they switched their sim cards.
Then i started thinking to myself - I've had the problem about as long as I had my SGS2, and only had the problem with AOSP roms on my captivate - then i made the connection.
When i used a stock, or stock based rom on my captivate, i had no problems. The second i used an international ROM, or an AOSP rom is when i would have the issues. What is the difference between the roms............. The ATT rom doesnt have hspa+ enabled, so using my old "3g" sim card i was fine. No 3.5g to connect to to cause problems. CM and international Roms would use that new 3.5g network and would then screw up.
That is my theory anyway, and if it turns out true it would have solved one of my biggest annoyances with android. (or at least my android experience)
fingers crossed
i too went in and got a new sim. my phone service actually quit working before going in. id get calls and i could hear them but they couldnt hear me. i replaced the sim and all is good. where miui would hang and data would freeze and id haft to redo the airplane mode trick, it would just hang for a sec or 2 and then start downloading again. ive only had it hang 2x now and i think its because it might be switching from hspa to 3g or even wifi.
so for the sim card thing worked. if it fails in the mean time, ill come back to this and give an update. thanks for suggesting it being the sim card cause i wouldnt have thought of that.
I'm another day strong without any problems. I don't know of its due to the new sim or because i switched to a Samsung based rom. I should switch back to test, but I'm loving the speed of icsrewed right now.
If i had to guess i would say it's due to the sim, and if so, there should be a sticky somewhere that says to make sure your not using an older 3g sim card. Would have saved me months of aggravation.
Will report back after a few more days. In a week or so I'll switch back to cm to see if it fixes it there as well.
That's one reason I generally buy my phones at the att store (authorized reseller, but dedicated to att phones). Usually they will price match, and they know things like that. My SIM went bad when I had my captivate. Later when I upgraded to a faux G phone the att rep knew I would need a new SIM, and replaced it then, even though it was only a month old. They also knew the "3G" data plan needed to be converted to a "4G" (still unlimited) plan on their system for me to get data.
You don't get that kind of assistance when you buy at Walmart, online, etc.
Sent from my Galaxy S II (i777)
quarlow said:
That's one reason I generally buy my phones at the att store. Usually they will price match, and they know things like that. My SIM went bad when I had my captivate. Later when I upgraded to a faux G phone the att rep knew I would need a new SIM, and replaced it then, even though it was only a month old. They also knew the "3G" data plan needed to be converted to a "4G" (still unlimited) plan on their system for me to get data.
You don't get that kind of assistance when you buy at Walmart, online, etc.
Sent from my Galaxy S II (i777)
Click to expand...
Click to collapse
Amazon Mobile just sends you a new simcard anyways lol
Interesting, maybe next time if my data refuses to work I should bug at&t for a new Sim card. I had problems on different roms including stock rom where I had to turn off and on my data or else it will not work. But I think my modem might have played a role. Data seems fine now.
Sent from my SGH-I777 using XDA App
zynine said:
Interesting, maybe next time if my data refuses to work I should bug at&t for a new Sim card. I had problems on different roms including stock rom where I had to turn off and on my data or else it will not work. But I think my modem might have played a role. Data seems fine now.
Sent from my SGH-I777 using XDA App
Click to expand...
Click to collapse
If you go directly to an AT&T store they replace it for free.
penguinlogik said:
If you go directly to an AT&T store they replace it for free.
Click to expand...
Click to collapse
Yup just show up. They shouldn't charge. as long as your an att customer theyll take care of you. I've never heard of anyone paying for a new Sim. If you lose your Sim I've heard of them charging people, but i doubt they'll charge even then.
Related
So long story short, I opened a new line and swapped my hardware to the new line for the TB on my line. After I left BB, I called Verizon to do the swap. They said they couldn't because my SIM card was programmed for the original line and I had to go back to a VZW to get a new provisioned SIM, which I did. It worked when I left, but since late last night, I have no 4G or 3G. Any ideas what the issue could be?
Oh and when the phone goes into sleep mode and I awaken it, the 4G is lit up and then shortly after, no data.
Breakthecycle2 said:
Oh and when the phone goes into sleep mode and I awaken it, the 4G is lit up and then shortly after, no data.
Click to expand...
Click to collapse
when i first got my phone, the original 4g card wasnt working. turns out is was just bad... they swapped it for a new one and all is well. so i'm assuming u've already tried to reboot and see if that helps. maybe that card is bad as well? hmmm....u should go back to see if they can swap out to another one.
When I was in the store getting mine they were talking about how they'd been having allot of issues activating phone because of the large demand was causing a backup in the switch. There was a guy that walked in about 5 min before me and his would not activate, but then mine activated perfectly. So I guess it was intermittent. Makes me wonder if you got caught up in that backup when you activated the second sim.
-Gilgamesh- said:
When I was in the store getting mine they were talking about how they'd been having allot of issues activating phone because of the large demand was causing a backup in the switch. There was a guy that walked in about 5 min before me and his would not activate, but then mine activated perfectly. So I guess it was intermittent. Makes me wonder if you got caught up in that backup when you activated the second sim.
Click to expand...
Click to collapse
Should I go back?
I would do a battery pull (pretty sure you've already done that) and remove and reseat the sim as well (if you haven't already) and if that doesn't work I'd reach out to Cust Service. May be something easily fixable in the system, save ya the time and gas of driving to the store.
maybe try a *228 and press 1 to program .... just a thought, I hate having to deal with customer service
I could be wrong but I thought *228 did not work with these phones because of the sim card.
Sent from my ADR6400L using Tapatalk
orcsbane13 said:
I could be wrong but I thought *228 did not work with these phones because of the sim card.
Sent from my ADR6400L using Tapatalk
Click to expand...
Click to collapse
I'd assume there is some good system in place for phones ordered online and what not.
How did anyone who ordered their phone online activate?
-Gilgamesh- said:
I would do a battery pull (pretty sure you've already done that) and remove and reseat the sim as well (if you haven't already) and if that doesn't work I'd reach out to Cust Service. May be something easily fixable in the system, save ya the time and gas of driving to the store.
Click to expand...
Click to collapse
My 4g would drop off randomly and I just assumed it was my area's LTE working out it's kinks. Then after doing the manual 3g only switch, the data was still randomly dropping off, so I was up to try anything out.
I pulled the battery and reseat the Sim like you said and so far so good...mind explaining that?, lol, doesnt make sense to me.
thanks in advance
Geegolly said:
My 4g would drop off randomly and I just assumed it was my area's LTE working out it's kinks. Then after doing the manual 3g only switch, the data was still randomly dropping off, so I was up to try anything out.
I pulled the battery and reseat the Sim like you said and so far so good...mind explaining that?, lol, doesnt make sense to me.
thanks in advance
Click to expand...
Click to collapse
Improperly seated SIM card? Corrupted memory that a battery pull resets? Good Karma?
-Gilgamesh- said:
When I was in the store getting mine they were talking about how they'd been having allot of issues activating phone because of the large demand was causing a backup in the switch. There was a guy that walked in about 5 min before me and his would not activate, but then mine activated perfectly. So I guess it was intermittent. Makes me wonder if you got caught up in that backup when you activated the second sim.
Click to expand...
Click to collapse
Wow, exact same experience I had yesterday. I went in late, like 5:00 PM. I had to wait a while for someone to actually help me, but once I said what phone I wanted it wasn't more than 20 minutes to get the transaction done.
Do NOT do *228.
I had this same problem today when activating my phone. Just call Verizon and they will walk you through getting it activated correctly.
Ironically, on my way to VZW it suddenly started working. LOL. "clog" in the system? I don't know, but it's fast as hell!
I don't have 4G in my area yet but I got the TB anyway. I love it. But the 3G does the same thing, just keeps dropping out.
This keeps happening to me also. Its very Frustrating. What the number to VZW Customer Service?
hotdawwgman said:
This keeps happening to me also. Its very Frustrating. What the number to VZW Customer Service?
Click to expand...
Click to collapse
Nevermind lol
Sent from my Ginger Tazz using XDA App
Just so you know, *228 & *22899 do not work on the tbolt due to sim card. You cannot activate or update that way..
Jrocker23 said:
Just so you know, *228 & *22899 do not work on the tbolt due to sim card. You cannot activate or update that way..
Click to expand...
Click to collapse
doesnt it still update the other radio? not everything uses lte.
No need for *228 because the sim card now is provisioned with auto PRL for when the phone does enter 3G service
DO NOT EVER ESN SWAP THE PHONE TO A NON 4G
Just like mentioned initially, the sim card and phone are designed for 4G lines only so swapping back to your old 3G device or onto another line is a bad idea.
If your trying to do an alternative upgrade and the store your at is full of morons, ask them if they could possibly do a Customer Provided Equipment Upgrade and then then ring out the phone in their point of sale system with the contract you have signed.
Until VZ Corporate figures out another way to do alternative upgrades, this is the only method I have found to get around this
Yes in many cases (including me) we have found it to take a while for 3G or 4G to stay on. Give it time. dial #832 to prove your phone can make calls and receive text messages. anywhere from 10 to some cases an hour before the phone is in full lock.
If your still having a problem go out for a walk or drive, heard switching between towers can help push the process.
I had the exact same problem as the OP, to fix it Verizon made me go back to best buy, you have to get the phone exchanged for a new one and then they have to call in to setup the new untouched TB on the line you want it on. Believe me it took 3 hours for them to finally fix it, and that's what did it.
Sent from my ADR6400L using XDA Premium App
I have been running custom roms on my droid since the root explot was first discovered, and I have a rooted xoom as well. Last night I rooted my thunderbolt and installed the debloated rom. I don't think it is even related to my problem, as it still worked fine after doing this, but I thought it was worth mentioning. I removed the sim card today, just to prove to my brother that it did indeed have a sim, and after reinsertation, my thunderbolt has not been able to connect to a data network. I do not live in a 4g area, and I have tried reseating the sim several times. I can make phone calls, wifi works fine, but I cannot get the 3g icon, and the browser won't load if not on wifi.. I'm starting to get scared. I can't think of anything else to try. Any suggestions?
EDIT 1: I have intermittent 1x data, but I never get 3g. And when I say intermittent, I mean I get it like right after a call for maybe a minute, then it goes away.
Sent from my Xoom using XDA Premium App
I had this same issue as well when I removed and reinserted my SIM card. When I booted back up I was stuck on 1xRTT. After making a call, they phone locked back on to LTE and everything was good after that. If it still isn't working I would recommend giving Verizon a call. They may be able to reactivate it. I did notice that the problem persisted even though I flashed a couple different roms on the device. I'm thinking it probably isn't a great idea to remove and insert the SIM if you don't have to.
Just an update,
I spent 2.5 hours at the effing verizon store today after spending an hour on the phone. Even after all that time, and giving me a new SIM, they STILL couldn't get my TB to connect to 3g. They said that it might magically start working at midnight for no particular reason, but had no clue what to do (I was actually at a corporate store btw) If it doesnt start working tonight, I am going back tomorrow. I have no idea what the hell is up. I am very tech savvy, and this is just insane. It must be a verizon problem in my area that it wont let the phone reactivate for the 3g/4g
Any ideas? I have a Plain Jane rooted TB that has been stuck in 1X despite (in order):
- rebooting
- pulling battery
- restoring a known good saved ROM from ROM Manager
- toggling enable on RevA
- installing jcase's rooted 1.70.605 OTA and MR2 radio
- factory reset
I am in midtown Manhattan. I should have stellar 3G/4G. Is there anything left to do but return the phone to VZ?
Bluecat.NYC said:
Any ideas? I have a Plain Jane rooted TB that has been stuck in 1X despite (in order):
- rebooting
- restoring a known good saved ROM from ROM Manager
- toggling enable on RevA
- installing jcase's rooted 1.70.605 OTA and MR2 radio
- factory reset
I am in midtown Manhattan. I should have stellar 3G/4G. Is there anything left to do but return the phone to VZ?
Click to expand...
Click to collapse
You should check your settings and see if your mobile network is on(obvious answer and I feel like you have probably done that). Make sure you dont have any apps that are turning it off i.e. juicedefender or any other apps that control your mobile network. It could be the ROM you are using so try and use your stock ROM and see if you get 3G/4G in that. Make sure your SIM card is in properly. I do not know if that will be an issue but it could help. Also along with ROMs make sure the ROM you are using is friendly with the radio you are using. I can not think of much else. Google it too and search this forum or others that might help too! Good luck.
The simplest and most obvious possibility that still has to be asked: Do you have the back cover on the phone?
wichi2010 said:
You should check your settings and see if your mobile network is on(obvious answer and I feel like you have probably done that). Make sure you dont have any apps that are turning it off i.e. juicedefender or any other apps that control your mobile network. It could be the ROM you are using so try and use your stock ROM and see if you get 3G/4G in that. Make sure your SIM card is in properly. I do not know if that will be an issue but it could help. Also along with ROMs make sure the ROM you are using is friendly with the radio you are using. I can not think of much else. Google it too and search this forum or others that might help too! Good luck.
Click to expand...
Click to collapse
I have the Stock ROM w/corret radio and yes mobile is on, airplane mode off. Also tried pulling the battery. This sucker stuck on 1X for dear life.
FreemanB said:
The simplest and most obvious possibility that still has to be asked: Do you have the back cover on the phone?
Click to expand...
Click to collapse
yes, back cover is on
I had the same problem you did. I used Bamf 3.0 and flash the newest leak radio. My phone all of the sudden the next day dropped 3G. I went into the VZ store today and told them my sim card died and they gave me a new one. It working now, so I said unroot your phone like I did and get a new sim card. Make sure you update to their newest software before going into the store.
Seem like alot of people on the forum are saying they are not getting 3G/4G lately after the new radio that was out. I got my radio the day it was leak.
gammagogeta said:
I had the same problem you did. I used Bamf 3.0 and flash the newest leak radio. My phone all of the sudden the next day dropped 3G. I went into the VZ store today and told them my sim card died and they gave me a new one. It working now, so I said unroot your phone like I did and get a new sim card. Make sure you update to their newest software before going into the store.
Seem like alot of people on the forum are saying they are not getting 3G/4G lately after the new radio that was out. I got my radio the day it was leak.
Click to expand...
Click to collapse
Thanks. But I had my problem before I flashed the new radio. I've been using the original plain jane root from back in March. It worked two nights ago, was stuck in 1X the next morning.
Since I now have the new OTA stock is there an easy way to get it out of root or should I just follow the sticky instructions and go all the way back to original ROM?
Instead of taking it in you could also just give them(verizon) a call. I know they can see if your phone is rooted from there and many verizon workers have theirs rooted and might be able to help you!
Yeah mine worked 2 days ago too but yesterday it died I was using bamf for a while now. I flashed the radio before that too, all of the sudden it just dropped. The guy at VZ store told me that never happened before that a sim card just die like that.
wichi2010 said:
Instead of taking it in you could also just give them(verizon) a call. I know they can see if your phone is rooted from there and many verizon workers have theirs rooted and might be able to help you!
Click to expand...
Click to collapse
Thanks, but I spoke to VZ last night. The rep was nice and all but said the factory reset should fix the problem (it didn't) He said the next step would be to replace the phone. I might call again tonight to see if I can bump up the tech support ladder to someone more knowledgeable. Still hoping someone here could help me out.
Like I said, I had the original plain jane root that everyone did back in March when the phone came out. No reason for it to suddenly get stuck in 1X the other day.
Ive had that problem twice now. The first time my 4g antenna stopped working for whatever reason. I replaced the battery cover and it worked again for a few days. When it stopped again I called verizon and they sent me a new phone which is probably what youre gonna have to do.
So... VZ is next-day mailing me a new phone. I wanted to exchange it in the city but they said once you have the phone for more than 14 days exchanges have to be done by mail. Still, I'd love to know why the phone died.
I am admittedly a noob when it comes to Android phones. I have had my i777 for a few months now and have successfully bricked it more than once. Having said that, I have found that the answers to my questions have always been on the board somewhere. I am having troubles figuring out where to go with this portion of the issue though. Having tried several different ROMs for my phone, I keep having the same issue. With any ROM, other than stock, I miss phone calls or text messages when my phone is locked and on Wi-Fi at home. If I'm out and about with my phone in my pocket and locked, it works normally. But, if I'm at home working at my desk and the phone is locked, I will not get text messages or phone calls. Notifications from apps like CNN continue, but nothing from the mobile network. I have followed the guide to return to stock and built my own jig that worked to reset my flash counter as I flashed before I read when I got the phone. (Former iPhone user that just assumed it was as easy as a jailbreak, really really dumb on my part)
I am a tech geek. I follow instructions well. I am sure the problem is with my phone and not the ROMs. My question for the forum, is where to begin troubleshooting the issue. I want to be able to use these ROMs.
Some info that may be helpful:
Baseband: I777UCKH7
Kernel: 2.6.35.7
I have tried the following in no particular order:
UCKK6-SHOstockV1.9.2noWipe
Serendipity_8.2
update-unnamed-v2.2.1-full
ICScrewD_2.1
TurkbeyRom-v33
Each has individual issues that I can deal with and learn to fix, but the phone issue I, obviously, cannot get past.
Have you set the phone to keep the wifi active when sleeping or locked?
Miami_Son said:
Have you set the phone to keep the wifi active when sleeping or locked?
Click to expand...
Click to collapse
No I have not. Does the wifi connection prevent the cell network from connecting?
cell network shouldn't disconnect at all if it is, swap it out could be bad phone. Also what is your signal level at your desk at home? Low signal normally causes missing of messages.
Puff3r said:
No I have not. Does the wifi connection prevent the cell network from connecting?
Click to expand...
Click to collapse
No, it doesn't.
Do you use any 3rd party apps like tasker?
When did this issue start? Perhaps there is an issue with the tower that serves your home. How strong is your cellular signal at home? I believe text messages (except MMS) are sent over the cellular network. Your being on wifi shouldn't matter (does being at home with wifi off and the phone locked still cause issues?).
I can't imagine other ROMs causing issues, though. If anything, they would mess up your data network only if they had the wrong APN settings for your area (for example, for a while, people using Unnamed didn't have data issues, except for a few like me who lived in certain areas with Cingular towers). Or maybe the stock modem files are better for you than the ones provided by the ROMs?
Maybe you have an old sim card that somehow has issues? You should be able to get a free one from at&t. Do you have another phone that you can test it with?
nh5 said:
cell network shouldn't disconnect at all if it is, swap it out could be bad phone. Also what is your signal level at your desk at home? Low signal normally causes missing of messages.
Click to expand...
Click to collapse
I keep a minimum of 3 bars and live near the center of a large city. As stated in the op, this is only happening on added ROMs never on stock. I have again reverted to stock (+root), since the op, and confirm that I am getting messages and calls at my desk at home with the phone locked.
****************************Edit for SoCaliTrojan post********************************************
I do not have any additional task managers installed, I've just always used the one built in. As for the SIM card, I am using the one that I got with the i777 at upgrade and get the 4G network when not on wifi, so I think I can rule it out. My wife has a Note that I have been drooling over, guess I will have to "borrow" it for "testing" when she gets home from work.
Also, I notice I am on baseband KH7 with Android version 2.3.4. I see mention of KK6 and 2.3.6 on the forums. I have avoided flashing the baseband, when possible, to keep from possibly bricking the unit. Is it possible that upgrading these could resolve the issue?
That is a very weird problem. Only thing I can suggest is compare the APN settings in root with a custom rom's settings. They should be identical, but check anyway.
Sent from my SGH-I777 using xda premium
Puff3r said:
As for the SIM card, I am using the one that I got with the i777 at upgrade and get the 4G network when not on wifi, so I think I can rule it out.
Click to expand...
Click to collapse
OK, I have to ask since seeing the above, do you have a plain SGSII or a SkyRocket?
Miami_Son said:
OK, I have to ask since seeing the above, do you have a plain SGSII or a SkyRocket?
Click to expand...
Click to collapse
It is branded GalaxySII on the back with model number sgh-i777.
Puff3r said:
It is branded GalaxySII on the back with model number sgh-i777.
Click to expand...
Click to collapse
Then it isn't connecting to 4G networks.
It's labeled as "4g" but really just multiple 3g connections to give you a faster overall speed. But you might want to just try getting a new sim card at your AT&T store, if that doesn't work, try a different modem (like KK6) the whole list/downloads are in the development section.
penguinlogik said:
It's labeled as "4g" but really just multiple 3g connections to give you a faster overall speed. But you might want to just try getting a new sim card at your AT&T store, if that doesn't work, try a different modem (like KK6) the whole list/downloads are in the development section.
Click to expand...
Click to collapse
I made AT&T upgrade me to a n LTE sim card. Our phone disent have LTE but the newer sim cards supposedly will make your speeds faster when LTE does come to your area due to it pushing HSPA+ faster than enhanced backhaul.
You said you live in the center of a big city maybe being surrounded by a lot of tall buildings could be causing havoc on your cell reception.I know at my work I can send and receive messages and calls everywhere except our breakroom but everyone else's phone works fine in the breakroom.
Sent from my GT-I9100 using xda premium
If I was wanting to pit a new modem on my sgs2 att phone what do I need to do?
Sent from my SAMSUNG-SGH-I777 using XDA
Does anyone experience random losses of data connectivity? Sometimes I just can't browse the internet. If I reboot the phone, then it works. Cycling the data off and then on doesn't do it. I have to reboot. I am running stock everything, but unlocked bootloader.
aiwapro said:
Does anyone experience random losses of data connectivity? Sometimes I just can't browse the internet. If I reboot the phone, then it works. Cycling the data off and then on doesn't do it. I have to reboot. I am running stock everything, but unlocked bootloader.
Click to expand...
Click to collapse
Stock browser quits working on me sometimes. It won't load a page, I just click recents, close it out and reload it and it is fine.
Yeah, I'm getting the same thing. I also get the random Sim error that also requires a reboot to fix. It seems to be happening more frequently now, so I may be making a trip to at&t tomorrow.
Sent from my HTC One_M8 using Tapatalk
If you take a trip, let me know what they say. I haven't gotten the SIM errors, but definitely losing data. Closing and re-opening the browser has not solves it for me.
I was thinking of trying a different ROM, but still close to stock.
aiwapro said:
If you take a trip, let me know what they say. I haven't gotten the SIM errors, but definitely losing data. Closing and re-opening the browser has not solves it for me.
I was thinking of trying a different ROM, but still close to stock.
Click to expand...
Click to collapse
Did you by chance cut down your SIM card to nano size and use it in your M8?
S550 said:
Did you by chance cut down your SIM card to nano size and use it in your M8?
Click to expand...
Click to collapse
I didn't, mine came pre-loaded in the phone, but I wasn't getting the SIM errors, it was the person above. I looked at ROM's but couldn't decide on one. I think I will try deleting the APN, and creating a new one, and see how that goes for a while.
I'm getting the same thing.
Yes, this happens to me too sometimes when I pass by some particular area, not always but sometimes. And when this happen, it sometimes get back to Norman but sometimes it don't. I have to reboot (as you said) this don't seems to be a problem in phone but with the service provider. I losses signals in that area
And I am from India and this happens in an almost village area
Sent from my SM-T211 using xda app-developers app
Turned off all of auto update.
As I expected they first tried to replace my SIM. I was still having the data drop issue and did once again get the SIM error, even though it doesn't happen every time. I was not losing signal like this with my Nexus 5. I finally got an AT&T phone rep to send me out a new device. I could tell the reps in the warranty center didn't believe me...
Sent from my HTC One_M8 using Tapatalk
I get this too. I've checked all my data settings but for some reason it doesn't always sync on mobile data. As soon as I get home on Wi-Fi I get a bunch of messages at once. Checked all my data settings can't seem to figure it out. Stock ROM rooted and soff. Att phone unlocked using on telus in Canada.