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Lost reception doesn't come back without restart

I've been having a problem lately with my Captivate. At my work there's a complete dead zone where I lose reception completely (the 4 bars are replaced by a circle with a cross through it). However, when I leave work and go back home the reception never comes back - I've waited and waited and waited, but it still stays Xed out.
The phone requires a restart, and after that it picks up reception normally.
has anyone experienced this?

Did you try enabling flight mode, then turning it back off? Same effect as restarting the phone for your signal problem.
But in answer to your question, I've never had that problem. I have had a problem getting my signal back, but I just hold the phone in the open for a bit, and then stick it in my pocket again once I obtain service.

miztaken1312 said:
Did you try enabling flight mode, then turning it back off? Same effect as restarting the phone for your signal problem.
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Click to collapse
I have, and it doesn't work. I have to turn the phone off and back on again.

I have the exact same issue.

I was having the same problem. They changed out the SIM card and have not had the problem sense. If your SIM has been through a few phones my not hurt to get a new one.
Sent from my SAMSUNG-SGH-I897 using XDA App

thedoodle said:
I was having the same problem. They changed out the SIM card and have not had the problem sense. If your SIM has been through a few phones my not hurt to get a new one.
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
Thanks, I just ordered a new SIM card online. My existing one is 4 years old and scratched up like crazy, that may be it.
On a different note, once I receive my new SIM card does anyone know how to associate it with my plan? The ebay listing for the SIM card said to do it through the following website but I'm not sure which option is correct ("upgrade phone" perhaps?)
https://www.wireless.att.com/activations/

Paladuck said:
Thanks, I just ordered a new SIM card online. My existing one is 4 years old and scratched up like crazy, that may be it.
On a different note, once I receive my new SIM card does anyone know how to associate it with my plan? The ebay listing for the SIM card said to do it through the following website but I'm not sure which option is correct ("upgrade phone" perhaps?)
https://www.wireless.att.com/activations/
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Click to collapse
For simplicities sake and for your own safety, take it into at&t and have them do it. At least you know it will be done correctly.
Sent from my Captivate

att gives u free sim card if goto their main stores

If you get a new sim just call at&t and tell them you need to change the sim number.
Sent from my SAMSUNG-SGH-I897 using Tapatalk

ViniD said:
att gives u free sim card if goto their main stores
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Click to collapse
I've been through many AT&T stores and they always charge me $25 for a new SIM. How'd you get free ones?

miztaken1312 said:
I've been through many AT&T stores and they always charge me $25 for a new SIM. How'd you get free ones?
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Click to collapse
You must be going to private franchises because AT&T charges them for SIMs. If you call 611, they would make a notation to your account that you get a free one and the franchise would get reimbursed by AT&T.
I had to get a new SIM with my phone and it experiences this same issue. Has anybody had any luck with getting rid of the problem?

dennistaylor said:
You must be going to private franchises because AT&T charges them for SIMs. If you call 611, they would make a notation to your account that you get a free one and the franchise would get reimbursed by AT&T.
I had to get a new SIM with my phone and it experiences this same issue. Has anybody had any luck with getting rid of the problem?
Click to expand...
Click to collapse
I don't believe they were private. They are regular at&t stores. But next time I'm definitely calling 611 for my similar problems
Sent from my Captivate

i have the same issue. i got a new sim when i got the phone and i rarely touch the sim. I bought the phone on launch day and have only just started seeing the issue. it seems to me that it started after the OTA patch but it is still happening after i flashed Cognition v2.1.7

Problems

So, I got a SGS2 Skyrocket a few days ago from a guy on craigslist for $400. Great deal, or so I thought. The phone worked well until today, I'm not receiving text messages or phone calls and I cannot send text messages. I first though, "great, I bought a stolen phone and and now it's been disabled." I googled it and it seems that I wouldn't be able to make calls if it had indeed been reported stolen. Any ideas? I restored the device and it didn't help. Thought it was interesting when I went to software update under settings it says "DM initialization is not ready. Check network or sim card." Could I just have a signal problem or something? I have full bars...

Did you get a new 4G LTE sim card for the phone?

No, I didn't. But it was sending texts just fine yesterday and now I'm trying to use the sim on my old phone and it wont send texts either.

Sounds like a sim issue. You might need to head to your ATT store and upgrade your sim card. This should solve your problems. Older sims won't work on the newer 4G phones. I had this issues with my 1st skyrocket and my old sim. It worked for a bit then stopped working, we replaced the old sim with a new one and all was good....

iLiberate said:
So, I got a SGS2 Skyrocket a few days ago from a guy on craigslist for $400. Great deal, or so I thought. The phone worked well until today, I'm not receiving text messages or phone calls and I cannot send text messages. I first though, "great, I bought a stolen phone and and now it's been disabled." I googled it and it seems that I wouldn't be able to make calls if it had indeed been reported stolen. Any ideas? I restored the device and it didn't help. Thought it was interesting when I went to software update under settings it says "DM initialization is not ready. Check network or sim card." Could I just have a signal problem or something? I have full bars...
Click to expand...
Click to collapse
"Guy......Craigslist"..... = problem?
Sent from my SGH-I727R using xda premium

I bought mine off Craig's List and experienced the same thing. Your sim from your Captivate will only work briefly for phone/SMS, but not at all for data.
You MUST get a 4G LTE sim card for the Skyrocket and AT&T will change your data plan "type" (same data and price per month, but different line item on the billing).
5 minutes in AT&T and I was good to go.
Sent from my SAMSUNG-SGH-I727 using Tapatalk

Grut said:
Sounds like a sim issue. You might need to head to your ATT store and upgrade your sim card. This should solve your problems. Older sims won't work on the newer 4G phones. I had this issues with my 1st skyrocket and my old sim. It worked for a bit then stopped working, we replaced the old sim with a new one and all was good....
Click to expand...
Click to collapse
Dont listen to people like this when they tell u older sims will work for a min then stop. Complete and utter bull****. Me and my friend have the skyrocket and he uses and older version sim and has no problems. The new sim only matters cuz it gives u the lte data plan. Its not gonna stop text from going thru. Such misinformation going on. This is y people are so screwed up
Sent from my SAMSUNG-SGH-I727 using xda premium

Justinfedor said:
Dont listen to people like this when they tell u older sims will work for a min then stop. Complete and utter bull****. Me and my friend have the skyrocket and he uses and older version sim and has no problems. The new sim only matters cuz it gives u the lte data plan. Its not gonna stop text from going thru. Such misinformation going on. This is y people are so screwed up
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
Really? So if your information is correct, and you are all knowing, then why not help him fix the problem.

First off sounds like a SIM issue. Sim is usually the problem when it comes to network connectivity issues. Did you check the litmus sticker for water exposure?
Call ATT and have them check the IMEI #. You should have done that before you bought the phone.
@Justinfedor: That kind of response is not needed. If you can't say what's on your mind kindly please go somewhere else.

When I got my Skyrocket (moving from Captivate) the sales person said directly I would get a new SIM because the 4G LTE needed a new (assumably different) one. I'm sure you just need to get a new SIM which ATT should do no problem.

X10D3 said:
First off sounds like a SIM issue. Sim is usually the problem when it comes to network connectivity issues. Did you check the litmus sticker for water exposure?
Call ATT and have them check the IMEI #. You should have done that before you bought the phone.
@Justinfedor: That kind of response is not needed. If you can't say what's on your mind kindly please go somewhere else.
Click to expand...
Click to collapse
4g lte sims are for data. Like i said my friend doesnt have one in his phone. We dont live in an lte area so hes not getting a new one. U all say people need a new sim for a 4g device. Thats a complete lie. Sims can cause the issue but its not always the answer. Oh and i will go somewhere else cuz you all obvisously think you know everything. No need to be in here with a bunch of low life.
Sent from my SAMSUNG-SGH-I727 using xda premium

Justinfedor said:
4g lte sims are for data. Like i said my friend doesnt have one in his phone. We dont live in an lte area so hes not getting a new one. U all say people need a new sim for a 4g device. Thats a complete lie. Sims can cause the issue but its not always the answer. Oh and i will go somewhere else cuz you all obvisously think you know everything. No need to be in here with a bunch of low life.
Sent from my SAMSUNG-SGH-I727 using xda premium
Click to expand...
Click to collapse
WOW! Holy childish over-reaction batman!

Can't you just get a new Sim? Worst case, is that your carrier might charge you something like $10.00......
Sent from my SGH-I727R using xda premium

If that's the way you're going to act, then please leave. I used to work for ATT a while back. What I don't think you get is... You're right and you're wrong. No you don't need a LTE sim. If the sim is bad it can cause connectivity issues, and weird stuff all together. That last statement is what you're completely ignoring.

Justin and X10D3 are correct. I used my sim from my Atrix in my phone since I got it. You'll need to be set up on the LTE plan through att. All that happened is their system doesn't have your account provisioned for LTE and it took a day or so for them to catch it. Login to your account and see if you're on an LTE plan. If not, then call them, but I know my sim is the same one from my Atrix and I've hit LTE areas the whole month in December with no issues. It shouldn't change your rate plan just need it provisioned for your account to register properly with their LTE network.

No Service with AT&T

For some reason I can't get any service with AT&T but it picks up service with T-Mobile.
I have it rooted, unlocked with the Ace Hack Kit and running ICS AOSP.
Any ideas?
Edit: I've tried flashing different radios still no luck.

Are you using an ATT SIM? Can you get ATT in your area with a different phone?

I tried three different ATT sim cards and yes there is ATT service in my area.

Your APN settings are probably wrong. Give this thread a look:
http://forum.xda-developers.com/showthread.php?t=1042553&highlight=apn+settings

pazzo02 said:
Your APN settings are probably wrong. Give this thread a look:
http://forum.xda-developers.com/showthread.php?t=1042553&highlight=apn+settings
Click to expand...
Click to collapse
Thanks but it didn't work.

I'm going to cover the obvious. Your putting the sim cover back on right? Its needed for the antenna

marsdta said:
I'm going to cover the obvious. Your putting the sim cover back on right? Its needed for the antenna
Click to expand...
Click to collapse
Yea I do and a reboot. No luck but T-Mobile for some reason works fine.

I also get an error when searching for networks in the settings.
"error while searching for networks"
This is so confusing.

You don't need a correct APN for phone signal. So that shouldn't matter. Could this phone be possibly stolen or involved in an ATT account that was terminated early? Maybe ATT has it blocked from the network?

Agoattamer said:
You don't need a correct APN for phone signal. So that shouldn't matter. Could this phone be possibly stolen or involved in an ATT account that was terminated early? Maybe ATT has it blocked from the network?
Click to expand...
Click to collapse
I was gonna say this, my friend picked up a rooted phone a month ago. Had the same issue as the OP so we called AT&T and sure enough the IMEI # or something like that was reported stolen and had service terminated. They went on to tell him he's S.O.L.

MMM-BACONSTRIPS said:
I was gonna say this, my friend picked up a rooted phone a month ago. Had the same issue as the OP so we called AT&T and sure enough the IMEI # or something like that was reported stolen and had service terminated. They went on to tell him he's S.O.L.
Click to expand...
Click to collapse
This is a really interesting post. This is the first case I ever heard of where AT&T blacklisted a stolen device. I hope it is true. Typically, they just terminate service by deactivating the sim card and don't worry about the device.
Sent from my HTC Inspire 4G using Tapatalk

Agoattamer said:
You don't need a correct APN for phone signal. So that shouldn't matter. Could this phone be possibly stolen or involved in an ATT account that was terminated early? Maybe ATT has it blocked from the network?
Click to expand...
Click to collapse
I did buy this off of a stranger. I have never heard of ATT doing this though.

I found one thread on the net from a nexus owner and he said it was a mobo issue.

sh4rex said:
I found one thread on the net from a nexus owner and he said it was a mobo issue.
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Click to collapse
thats like using google to diagnose your car. apples and oranges. your next step should be to contact ATT and find out if that imei number is listed as blocked from the network before taking wild stabs in the dark from reading forums about phones different than yours.
not to knock you for searching though, it is appreciated

Did a little searching and it seems ATT does not blacklist IMEI codes. Just sim cards. Go figure.
I find it difficult to believe it is a motherboard issue. If it picks up a T-mobile phone signal there is no reason why it should not pick up an ATT phone signal if the sim card is good and there is service in the area.

I gave up and sold it to someone using tmobile

since it was rooted, ATT is still able to block the cellphone? I thought they might lose the connection with this device... Sounds interesting

fernandezhjr said:
This is a really interesting post. This is the first case I ever heard of where AT&T blacklisted a stolen device. I hope it is true. Typically, they just terminate service by deactivating the sim card and don't worry about the device.
Sent from my HTC Inspire 4G using Tapatalk
Click to expand...
Click to collapse
Since fernandezhjr the police of interesting posts wanted to poke some holes in my story...I asked said friend for a little more detail, turns out the phone in question was sold with the simcard in which she tried to use. Shady seller I guess sold the phone and cancelled the simcard on the phone, not sure if the phone was stolen or was actually the sellers phone but regardless that's neither here nor there. Once removing the simcard she was able to use the phone with her simcard.
edit: phone was never rooted. not sure if that matters to anyone.

MMM-BACONSTRIPS said:
Since fernandezhjr the police of interesting posts wanted to poke some holes in my story...I asked said friend for a little more detail, turns out the phone in question was sold with the simcard in which she tried to use. Shady seller I guess sold the phone and cancelled the simcard on the phone, not sure if the phone was stolen or was actually the sellers phone but regardless that's neither here nor there. Once removing the simcard she was able to use the phone with her simcard.
edit: phone was never rooted. not sure if that matters to anyone.
Click to expand...
Click to collapse
Heh heh. Like I said before, no poking, just spotting. I don't think anyone would like misinformation being posted, even if it isn't intentional. And when it comes from a more informed member like yourself that likes to be helpful to others, it is more likely to be accepted and/or acted upon. I also only question you when I've had conflicting experiences or seen reliable sources that conflict. The non blacklisting of devices is one that has been discussed here before and typically pops up in many other forums.
Sent from my HTC Inspire 4G using Tapatalk

Inspire on Simple Mobile

Hey guys wondering if someone else is in the Pacific Northwest area that is on Simple Mobile with the Inspire. What I would like to know is there any better radios for the inspire that youve noticed any change in signal reception or anything than the stock radio.

Army_Spec_Ops said:
Hey guys wondering if someone else is in the Pacific Northwest area that is on Simple Mobile with the Inspire. What I would like to know is there any better radios for the inspire that youve noticed any change in signal reception or anything than the stock radio.
Click to expand...
Click to collapse
search around a bit. radio is subjective, two people with the same phone and same service in the same room will get different results with radios. best thing is try a few out and see if any are better for you.

Simple mobile uses tmobile bands therefore you only will get edge speeds, try the Att go phone sim from Walmart you'll get great speeds and maybe straight talk
Sent from my Inspire 4G using xda premium

The one issue with GoPhone is that if the SIM has been activated in a different phone, and less than 6 months have passed since it was activated, you will likely get an IMEI locked message. This doesn't mean there is any issue with the Inspire, simply that the GoPhone SIM is locked to the IMEI of the phone it was activated in.

I use red pocket mobile. In northern cali. Runs on ATT hspa plus. Not bad no issues. T mobile doesn't offer a 3g plan. Red pocket is 50-60. Might want to look into it.
Sent from my Desire HD using XDA

vwood2121 said:
Simple mobile uses tmobile bands therefore you only will get edge speeds, try the Att go phone sim from Walmart you'll get great speeds and maybe straight talk
Sent from my Inspire 4G using xda premium
Click to expand...
Click to collapse
From what I've heard straight talk is 45 a month and it unlimited
Sent from my Desire HD using xda app-developers app

bhigham said:
The one issue with GoPhone is that if the SIM has been activated in a different phone, and less than 6 months have passed since it was activated, you will likely get an IMEI locked message. This doesn't mean there is any issue with the Inspire, simply that the GoPhone SIM is locked to the IMEI of the phone it was activated in.
Click to expand...
Click to collapse
The six month policy is for unlocking the phone to other carriers. you have it backwards, my friend. If you call them and tell them that you are changing phones because the one it was activated on was damaged or non functional anymore, they will send a code to the phone to unlock the SIM. I think they can only do that for a SIM that is locked to an Android. If it was activated on a non-smart phone, you can go to any AT&T store and tell them you want to change phones and they will do it.

graydiggy said:
The six month policy is for unlocking the phone to other carriers. you have it backwards, my friend. If you call them and tell them that you are changing phones because the one it was activated on was damaged or non functional anymore, they will send a code to the phone to unlock the SIM. I think they can only do that for a SIM that is locked to an Android. If it was activated on a non-smart phone, you can go to any AT&T store and tell them you want to change phones and they will do it.
Click to expand...
Click to collapse
Not sure what you found to be incorrect in my statement. I never claimed the gophone sim couldn't be unlocked to be used in the inspire, just that it is locked by default to the phone that it is activated in. Also, though what you say is true about being able to get it changed, by default AT&T personnel don't seem to be able to diagnose the problem, when you give them the error message. A friend of mine had this issue when he tried to use a gophone sim in a nokia smartphone, and after going to the AT&T store, calling them up, etc, he asked me and I told him his SIM was probably locked to the phone it was activated in. Once he knew this, he called, and they unlocked it. However, neither the store nor customer service was able to help him, until he told them what the problem was. I also picked up the inspire I am using now for cheap, because the seller tried putting a gophone sim in it, and it came up with an "IMEI Locked" message. He assumed there was a problem with the phone, and AT&T customer service was unable to help him. Knowing the issue with GoPhone sims, I bought the phone, and have had no issues with it. So, though what you say is true, you have to know about the gophone simlock issue, in order to get it resolved.

Please post all questions in the Q & A section. Thanks! Thread moved.
Sent from my Galaxy Nexus using Tapatalk 2

[Q] Bought Used 1S, only working on AT&T

Alright so, as the title says, bought it from Craigslist and it currently won't work on T-mo. The guy was on the phone with it before I bought it (saw him) so it obviously does work. Do I have to flash a t-mo radio or can I just factory reset and it'll be fine? I don't really mind not having root at the moment. It's on LeeDrOiD if that helps. Will post any other necessary info.

So you installed a T-Mobile SIM and it said it wasn't an authorized SIM? Or are you trying to connect to T-Mobile with an AT&T SIM? Otherwise it should work fine.
Sent from my H1S using XDA Premium.

MadJoe said:
So you installed a T-Mobile SIM and it said it wasn't an authorized SIM? Or are you trying to connect to T-Mobile with an AT&T SIM? Otherwise it should work fine.
Sent from my H1S using XDA Premium.
Click to expand...
Click to collapse
My previous T-mo SIM. So I guess it's unauthorized for the device but I've had the Sim (of course) for years.

Weird. Is it an international One S, or does it say T-Mobile on the front? I've never heard of being able to lock a device to a new carrier...
You could always try the SIM unlock tutorial that's in the development section.
http://forum.xda-developers.com/showthread.php?p=27010217
Sent from my H1S using XDA Premium.

rockerode said:
My previous T-mo SIM. So I guess it's unauthorized for the device but I've had the Sim (of course) for years.
Click to expand...
Click to collapse
Is the current sim active? It should work but not WiFi calling. Try to go T-Mobile store and grab another sim.
Sent from my HTC VLE_U using Tapatalk 2

the first thing I would do is head down to a T-Mo store to get a new sim card.

Yes, the SIM is activated. Been using it for about 5 years now, was in my N1, Sensation, and a flip phone for a while. Though I did get it cut for micro-SIM from a cutter (not done by myself). Perhaps it got screwed up? Though in the settings it can still pick up my #. And yup, it has T-Mobile at the top. Alright, I'll swap out the SIM and bump this up if that doesn't work.
More info: It keeps popping up to register with a network, and I select t-mo but it says "unable to register with select carrier".

Good chance it is blacklisted. People sell phones locally and then dont pay their bills on contract or report it lost or stolen and TMobile blacklist the IMEI. I learned my lesson. It happened to me twice over Craigslist. It will only work on ATT if it is. You can call TMobile or go into the store and they can tell you if it is.
Sent from my HTC VLE_U using xda app-developers app

I would almost bet that a new sim will solve your problem here. I remember when I got a new phone with T-Mo and still had a 6-7 year old sim card. I put it in the new phone and it would not work due to incompatibility with the new network specs etc. A new sim solved the problem. Let us know how the new sim works.

OhhCoreey said:
Good chance it is blacklisted. People sell phones locally and then dont pay their bills on contract or report it lost or stolen and TMobile blacklist the IMEI. I learned my lesson. It happened to me twice over Craigslist. It will only work on ATT if it is. You can call TMobile or go into the store and they can tell you if it is.
Sent from my HTC VLE_U using xda app-developers app
Click to expand...
Click to collapse
The specific error I get is "your SIM does not allow a connection to this network." So I don't think it's blacklisted. I'll report back tomorrow whether or not a new sim work/it actually was blacklisted, though.

rockerode said:
The specific error I get is "your SIM does not allow a connection to this network." So I don't think it's blacklisted. I'll report back tomorrow whether or not a new sim work/it actually was blacklisted, though.
Click to expand...
Click to collapse
Now is it an HTC One S or the One X for AT&T. You never answer the question above, does it say Tmobile on the front of the handset?

baseballfanz said:
Now is it an HTC One S or the One X for AT&T. You never answer the question above, does it say Tmobile on the front of the handset?
Click to expand...
Click to collapse
I did answer! But yeah, it has T-Mobile up top and it's the One S.

rockerode said:
The specific error I get is "your SIM does not allow a connection to this network." So I don't think it's blacklisted. I'll report back tomorrow whether or not a new sim work/it actually was blacklisted, though.
Click to expand...
Click to collapse
that happend to me in my tmobile sensation. i bought a T-mob htc sensation 4g and unlocked it to use it in telcel mexico, after some months i decided to change company and put it a movistar simcard, but it didnt read it; the phone was re-locked to telcel in a strange way (i dont know how)
the only thing i did, was to re-use the unlock method for the htc sensation and everything was fine again...
so, try to use the unlock method for the htc one S and check if that helps you

brett_day said:
I would almost bet that a new sim will solve your problem here. I remember when I got a new phone with T-Mo and still had a 6-7 year old sim card. I put it in the new phone and it would not work due to incompatibility with the new network specs etc. A new sim solved the problem. Let us know how the new sim works.
Click to expand...
Click to collapse
I agree.
Networks have changed a lot in the last few years. A 5-yo sim card is likely to be the cause of the problem.
If the network is just sim-locked you would get an 'Insert unlock code' message [or similar].

rockerode said:
I did answer! But yeah, it has T-Mobile up top and it's the One S.
Click to expand...
Click to collapse
Sorry i missed that. I would get a new sim like everyone has suggested.

Update:
Alas, getting a MircoSim did not work. Perhaps it is blacklisted (I tried asking the guy there and he said he couldn't check, ugh). So, For now, I'm going to try to get a refund (guy said he was willing to) or try to trade it on Craigslist for something that will work. Unless someone can send over a quick guide on how to unlock the SIM reader. I tried the one that is posted and I never got the options that should have popped up.

rockerode said:
Update:
Alas, getting a MircoSim did not work. Perhaps it is blacklisted (I tried asking the guy there and he said he couldn't check, ugh). So, For now, I'm going to try to get a refund (guy said he was willing to) or try to trade it on Craigslist for something that will work. Unless someone can send over a quick guide on how to unlock the SIM reader. I tried the one that is posted and I never got the options that should have popped up.
Click to expand...
Click to collapse
That suck ballz. Hack sim should work but if its on blacklist there no way it can work on T-Mobile if your unlock it.
Sent from my HTC VLE_U using Tapatalk 2

Try this, on dialer hit
*#*#4636#*#*
Choose "Phone information"
Scroll down to Radio, see if it's On or Off.
Maybe pretty with it, turn it off turn it on see if it give you anything

When my One S was blacklisted, it gave me the same error.
You can call or chat online with T-Mobile support, and they'll tell you if it's blacklisted.
Sent from my HTC One S

Will check tomorrow whether it's truly been blacklisted or not. And I had actually tried the radio thing earlier I was very hopeful that would work.