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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/
Click to expand...
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
Click to expand...
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?
Click to expand...
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

Sim card not detected

Lately out of the blue when I pull my phone out my pocket I see a pop up saying sim card not detected then I have 2 options. Shutdown or reboot. Is this the phone quality built a little out of place or what? I'm sure someone here has seen this message if not all of ya have.
Sent from my Inspire 4G using XDA Premium App

Personally I would go to ATT and see if you can get a new sim...because apparently something is not right with the sim card.
or or or
It could be the ROM you are running, If you are running a Rom...

Running android revolution 5.1.6. Crazy how could it be the rom?
Sent from my Inspire 4G using XDA Premium App

Possibly just a bad installation...
Although it is a reliable ROM they all have glitches, possibly it is the ROM and you should try re flashing it and if the problem is fixed you know it was the ROM, and if it doesnt work Like i said before, your going to have to take a trip to ATT.
It could also be some type of hardware failure in your phone, not sure though.

Have you tried using the SIM in a different phone?
Faulty SIMs aren't unheard of.

Nope just this one. It only pops up every now and then but today it did it twice back to back so now I was like wtf. And decided to ask if anybody else seen this before.
Sent from my Inspire 4G using XDA Premium App

My sister once had a bad 3G SIM card that would only work on EDGE. We were right by an EDGE/3G border, so we could take 3 steps forward and have a working phone in the EDGE zone, or 3 steps back into 3G and have nothing.
My Tilt phone worked fine in both "zones," so I put in her SIM and had no signal in the 3G area, heh.

Oh.. well if the problem is persistant ill just get then to make me another similar
Sent from my Inspire 4G using XDA Premium App

Uh oh...
Same problem for me here as well. Running CM7, was working fine until later in the evening when suddenly the network "died", and after several reboots noticed the little SIM problem icon next to the signal meter. I had the card locked, but went into settings and unlocked it. Now, logically if the phone couldn't read the card then technically I shouldn't have been able to change the PIN, so...
Confused over here. Is there a known fix to this? Or worse - how do I broach the subject with ATT if I have to go in?

nathisme said:
Confused over here. Is there a known fix to this? Or worse - how do I broach the subject with ATT if I have to go in?
Click to expand...
Click to collapse
I don't know about the fix about it, but concerning talking with AT&T, I'd recommend calling Warranty exchange first. They'll let you go through some hoops like getting your imei and possibly cleaning out your sim card with a rubber eraser. They'll also run some network tests on your phone to see if there are any "down towers" in your area. In the end, just request for a replacement sim card from them and have them note on your account that you want to get it free. Ask for confirmation if it's in your account, then head for the nearest AT&T corporate store. They'll tell you you'll have to pay $25 to get a replacement sim card or something, but just say that warranty sent you and it's noted on the account: should get you your sim for free, if possible.

I have never had a problem getting a new sim card for free from a corporate store. Just go in and ask for one.

[Q] Rogers - 2nd handset, Preparing SIM message

My first One X was showing this "Preparing SIM" message periodically and I eventually had the phone replaced when connections to Rogers service would drop out. In order to reconnect a reboot was required.
My 2nd device although stays connected to Rogers service just fine but I am still getting the "preparing SIM" message ever now and then.
The Rogers support people could not say anything about the message but I did have them put it on my record that I am experiencing it in the even that there is a problem after the initial no haggle swap period has passed.
If you are also having this message come up I would suggest you call into support and have them note that you are having this issue. Not that you will need to have the phone replaced but in the even you do, it's there on your account.
Has anyone else seen this on their phone?

quadcom said:
My first One X was showing this "Preparing SIM" message periodically and I eventually had the phone replaced when connections to Rogers service would drop out. In order to reconnect a reboot was required.
My 2nd device although stays connected to Rogers service just fine but I am still getting the "preparing SIM" message ever now and then.
The Rogers support people could not say anything about the message but I did have them put it on my record that I am experiencing it in the even that there is a problem after the initial no haggle swap period has passed.
If you are also having this message come up I would suggest you call into support and have them note that you are having this issue. Not that you will need to have the phone replaced but in the even you do, it's there on your account.
Has anyone else seen this on their phone?
Click to expand...
Click to collapse
Hey i used to have this problem. When i was using Sense.. Try using Apex Launcher and let me know if you have the problem still.

I've got the issue from your first phone. Been wondering if it's a hardware or a software issue. Seems to happen more often when I am farther from toronto, getting a worse lte signal. Could be anecdotal though. Don't know if I should exchange it for another one
Using apex since day one
Sent from my HTC One X using Tapatalk 2

I have an AT&T hox...the same thing happens to mine. Also, on the notification bar, it's has a triangle with an ! in it and next to it says something about restricted access. At first I thought it was they were getting Jacksonville fl ready for lte...nope.

Same thing on mine. Was on the phone with Rogers today and after disabling LTE on my end and switching to HSPA+, my data has returned and is working normally now.
Beamed from my Rogers HTC One XL

just got off the phone with At&T and HTC technical support...their answer was
huh? Never heard of that...most probably sim card reader going bad...
Wtf...and it just did it again. Going to return this phone for another one tomorrow.
Sent from my HTC One X using XDA

Artimus009 said:
just got off the phone with At&T and HTC technical support...their answer was
huh? Never heard of that...most probably sim card reader going bad...
Wtf...and it just did it again. Going to return this phone for another one tomorrow.
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
So, do you get the replacement Artimus? How's your replacement?
Last time I went to replace mine, the manager give me a hard time. He replace my sim card, but I still notice it at least once a day. Now, the situation is bad because this phone is out of stock.
Please let us know your experience. Thanks...

Update: I have since done a factory reset and haven't experienced the issue since. LTE is working fine on Rogers now too.
Sent from my HTC One X using xda premium

[Q] Losing signal and message saying "Preparing SIM card..."

I've been getting this message for a while, possibly since I first got the phone. It is hard to pinpoint when exactly it started because I only see it when I use the phone for a long time. What exactly happens is at seemingly random times when using the phone, the connection is lost (0 bars with an x in the top right) and a card icon appears for a short amount of time in the notification bar. A second or two later a message pops up saying Preparing SIM card... and then everything is back to normal. I am using the leaked radio but I'm pretty sure it has happened on every radio I've used. I only have a few days left to return it so I am wondering if this problem is happening to anyone else?

I would try a different SIM and if the problem persists, exchange the phone

I exchanged one of my HOXs for this exact reason.
Sent from my HTC One X using xda premium

tcl16 said:
I've been getting this message for a while, possibly since I first got the phone. It is hard to pinpoint when exactly it started because I only see it when I use the phone for a long time. What exactly happens is at seemingly random times when using the phone, the connection is lost (0 bars with an x in the top right) and a card icon appears for a short amount of time in the notification bar. A second or two later a message pops up saying Preparing SIM card... and then everything is back to normal. I am using the leaked radio but I'm pretty sure it has happened on every radio I've used. I only have a few days left to return it so I am wondering if this problem is happening to anyone else?
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Click to collapse
i have this issue ... losses connection for 2 sec and comes back again .. happens maybe 2times a day or so... dint happen in stock ( dint use stock for much long either).. so i am not sure whats the issue..
how often does it happen for u ?

I took out and re-seated my SIM card and it seemed to fix the issue.

I've exchanged the HOX twice for this same reason. It bugs the crap out of me.
Sent from my HTC One X using xda premium

I say it's normal and nothing to exchange your HOX for. It happens to me some.

Irish Enigma said:
I say it's normal and nothing to exchange your HOX for. It happens to me some.
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Click to collapse
The HT24 and HT25 build of the HOX, use a different manufacture SIM card reader. Motorola instead of Toshiba. (I will post up the email from HTC about that I can't access it from my phone). The Motorola card reader tray part is 0.02mm deeper. Aperently that's enough for one of the contacts to lift off SIM card. The email also referred to getting AT&T to send a new SIM card (new version of it is a touch thicker) model type 'Q' I think. But when I asked AT&T about it they had no idea what I was talking but they call the sim card issue a manufacturing defect. But, according to HTC the change was made to increase cell signal strength and reliability.
Sent from my HTC One X using xda premium

dkirchik said:
The HT24 and HT25 build of the HOX, use a different manufacture SIM card reader. Motorola instead of Toshiba. (I will post up the email from HTC about that I can't access it from my phone). The Motorola card reader tray part is 0.02mm deeper. Aperently that's enough for one of the contacts to lift off SIM card. The email also referred to getting AT&T to send a new SIM card (new version of it is a touch thicker) model type 'Q' I think. But when I asked AT&T about it they had no idea what I was talking but they call the sim card issue a manufacturing defect. But, according to HTC the change was made to increase cell signal strength and reliability.
Sent from my HTC One X using xda premium
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Click to collapse
Very interesting. I've had minor issues with my connection getting a little out of whack from time to time, so I switch airplane mode on and off to 'reset' the connection. Each time I do this, the get the preparing SIM message, but ONLY after going in and out of airport mode, not randomly on it's own. In any event, I have an HT24 model so maybe this is the same thing I'm experiencing. My SIM tray has never been quite flush with the phone surface. It's effectively flush, but I can tell it doesn't sit perfectly. Anyone else with the SIM issue notice this about their tray?

fitchpuckman said:
Very interesting. I've had minor issues with my connection getting a little out of whack from time to time, so I switch airplane mode on and off to 'reset' the connection. Each time I do this, the get the preparing SIM message, but ONLY after going in and out of airport mode, not randomly on it's own. In any event, I have an HT24 model so maybe this is the same thing I'm experiencing. My SIM tray has never been quite flush with the phone surface. It's effectively flush, but I can tell it doesn't sit perfectly. Anyone else with the SIM issue notice this about their tray?
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Click to collapse
Actually, the one that I exchanged for this issue was the only one I had with a perfectly flush sim tray.
Sent from my HTC One X using xda premium

_MetalHead_ said:
Actually, the one that I exchanged for this issue was the only one I had with a perfectly flush sim tray.
Sent from my HTC One X using xda premium
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Click to collapse
Good to know, thanks.

Does anyone know what this issue looks like in logcat? I have the issue but wanted to see how often it was happening.
What should I be searching for?

dave- said:
Does anyone know what this issue looks like in logcat? I have the issue but wanted to see how often it was happening.
What should I be searching for?
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Click to collapse
i have a feeling its software issue.. i am not getting any reboot after switching to at&t ruu with their baseband ..
i am still going to give 1 more day ..to make it sure.. by the way i installed
http://www.appbrain.com/app/no-signal-alert/com.smartandroidapps.missedcall
to make sure i miss none of the drop
Edit:dropped the signal twice already...

HTC One S - Loss of Signal

I recently bought this phone about 2 months ago.
Just got done checking several emails while on 4G. Put the phone down for a minute. Picked it up and lost all signal dealing with the mobile side. It works on WIFI but when it comes to sending texts, making calls or anything that deals with mobile it doesn't work. It says "No Signal Limited service Emergency Calls Only". It has been like this for the past hour and a half. I am currently located in Dallas, TX and I know that we are not going through any outages right now since I used my work phone to call my father's cell which is the same network as mine. If anyone has a clue what is going on, please state. Thank you very much!
It is running Android 4.0.4.
HTC Sense Version 4.1
Stock Rom.
In the NETWORK tab,
Operator Name: Unknown
Signal Strength: 0
Mobile Network Type: Unknown
Service State: Out of Service
Roaming: Not Roaming
I have tried removing the microSIM card and turned off my phone and left it off for about 15 mins. Nothing changed.
Tried changing it to airplane and leaving it for a bit and nothing changed.

Do you have the option to try this microSIM on a different unit, not yours?
Do you have an option to try a different microSIM on yours?

Where did u buy the phone? Sounds like your phone has been blocked.
Sent from my HTC One S using Tapatalk 2

orenfl said:
Do you have the option to try this microSIM on a different unit, not yours?
Do you have an option to try a different microSIM on yours?
Click to expand...
Click to collapse
As of right now, no since I am at work.
I might stop by a T-Mobile during lunch to see if the mircosim is the problem...

igotdez said:
Where did u buy the phone? Sounds like your phone has been blocked.
Sent from my HTC One S using Tapatalk 2
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Click to collapse
I bought it off somebody from Craigslist about two months ago.
I don't think it can be blocked since this is a different microsim and number.

TXRaunchy said:
I bought it off somebody from Craigslist about two months ago.
I don't think it can be blocked since this is a different microsim and number.
Click to expand...
Click to collapse
It's not the sim and number its the phone's imei which gets blocked !! Any way if you want to sell it I can owe you 290$ interested ?
Sent from my HTC VLE_U using xda app-developers app

I went to a local T-Mobile store and they didn't know what was wrong either. Switched to a new sim and it still didn't get signal. Four different people took a look at it and no one knew what was wrong. They just ordered me a replacement phone and should be in a week. I just paid $20 for the shipping.
Now does T-mobile replace phones with refurbished phones or with new ones?

TXRaunchy said:
I recently bought this phone about 2 months ago.
Just got done checking several emails while on 4G. Put the phone down for a minute. Picked it up and lost all signal dealing with the mobile side. It works on WIFI but when it comes to sending texts, making calls or anything that deals with mobile it doesn't work. It says "No Signal Limited service Emergency Calls Only". It has been like this for the past hour and a half. I am currently located in Dallas, TX and I know that we are not going through any outages right now since I used my work phone to call my father's cell which is the same network as mine. If anyone has a clue what is going on, please state. Thank you very much!
It is running Android 4.0.4.
HTC Sense Version 4.1
Stock Rom.
In the NETWORK tab,
Operator Name: Unknown
Signal Strength: 0
Mobile Network Type: Unknown
Service State: Out of Service
Roaming: Not Roaming
I have tried removing the microSIM card and turned off my phone and left it off for about 15 mins. Nothing changed.
Tried changing it to airplane and leaving it for a bit and nothing changed.
Click to expand...
Click to collapse
My phone does the same sometimes but gets fixed after a restart.

TXRaunchy said:
I went to a local T-Mobile store and they didn't know what was wrong either. Switched to a new sim and it still didn't get signal. Four different people took a look at it and no one knew what was wrong. They just ordered me a replacement phone and should be in a week. I just paid $20 for the shipping.
Now does T-mobile replace phones with refurbished phones or with new ones?
Click to expand...
Click to collapse
Consider yourself lucky. It sounds like the guy you bought it from scammed you. Keep your fingers crossed that T-mobile gives you that replacement phone.

Hey guys,
[n00b question]
I didn't want to start a new post, and admittedly I haven't done a thorough search through the One S forums for this issue I'm having, so forgive the thread hijack. I recently acquired a One S (unlocked, unbranded, 'global' version) and after receiving it and placing the SIM in the device -same microSIM as from my SGSIII- the phone acts crazy. I go from bouncing from 3G to H and back several times a minute. I know that can't be right, because I do not have this issue on my SGSIII. Does anyone know what might be causing this?
Also, first time posting in this sub-forum, so please go lightly on me.
[/n00b question]
Thanks guys.

TXRaunchy said:
I went to a local T-Mobile store and they didn't know what was wrong either. Switched to a new sim and it still didn't get signal. Four different people took a look at it and no one knew what was wrong. They just ordered me a replacement phone and should be in a week. I just paid $20 for the shipping.
Now does T-mobile replace phones with refurbished phones or with new ones?
Click to expand...
Click to collapse
I got a new one 3 weeks ago as a replacement.
Sent from my HTC One XL

dc211 said:
Consider yourself lucky. It sounds like the guy you bought it from scammed you. Keep your fingers crossed that T-mobile gives you that replacement phone.
Click to expand...
Click to collapse
The phone they are sending will be at my house tmrw. I will update.

I have the same problem, and unfortunately since I unlock my device I not covered in warranty they said is the motherboard problem and I have to paid around 170€ (live in Portugal)
No more HTC for me I will wait for nexus 4 and keep my HtcPod lol
Sent from my HTC One S using xda app-developers app

Thought I was the only one and that may SIM card was maybe broken but it seems it's an hardware bug or issue.
Eventhough the first 4 months I never experienced this issue but lately is happening as often as 1-2 per day. Using flightmode doesn't help, shutting down the phone neither only a restart temporarily fixes the issue till the next time. Really annoying since I use this phone when I'm on standby and so I need to check every few minutes to make sure I still got a network connection...

Apex_Strider said:
Hey guys,
[n00b question]
I didn't want to start a new post, and admittedly I haven't done a thorough search through the One S forums for this issue I'm having, so forgive the thread hijack. I recently acquired a One S (unlocked, unbranded, 'global' version) and after receiving it and placing the SIM in the device -same microSIM as from my SGSIII- the phone acts crazy. I go from bouncing from 3G to H and back several times a minute. I know that can't be right, because I do not have this issue on my SGSIII. Does anyone know what might be causing this?
Also, first time posting in this sub-forum, so please go lightly on me.
[/n00b question]
Thanks guys.
Click to expand...
Click to collapse
I'm a noob too, but I know that H is 3G. That's regular for it to do.

Any good news after the JB update?
Sent from my HTC One S using xda app-developers app

I had this issue for weeks until HTC released the small update prior to the JB update. Thereafter I never experienced the problem again but this might be pure coincidence, who knows...

bb2htc said:
My phone does the same sometimes but gets fixed after a restart.
Click to expand...
Click to collapse
my phone does the same it looks like. same behaviour with old radio and newest radio that i just flashed.

ippon said:
my phone does the same it looks like. same behaviour with old radio and newest radio that i just flashed.
Click to expand...
Click to collapse
My phone seems to have improve after JB update.

I got the same problem with my HTC One S!
1) I check the ESN and it comes available not reported stolen.
2) I did Factory reset and clear all storage as well = nothing!
3) When i go into phone settings it reads the sim card because you can get the phone number and everything other info from the carrier but nothing! Even i change from GSM/WCDMA Auto to GSM only and back and picks up the Network but it doesn't let me connect..."Your SIM card doesn't allow connection to this network" Message... im giving up guys, any help??