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Intermittant Signal Issues

I am currently running Ninja-0706, radio 26.06.06.30_M.
Intermittantly, my phone will drop out of H and start cycling through all the connections, edge, gsm, 3G etc. After cycling through, it will go to no connection at all where you see "no service" on the screen. And it will stay like that for several minutes, no matter where I am standing in my apartment, or even if i walk outside. Then all of a sudden, it will pick up H, full bars and it will stay like that.
So far, this issue has only happened a couple of times, within the past couple of weeks, and at my apartment. I have full wiped and flashed different roms, and reflashed the radio after the first time this happened, so this issue cannot be blamed on current said rom. This has led me to suspect that maybe there is an issue with the tower in my area. Twice I have called AT&T now about this issue. Both times they claim there have been no outages or issues with the towers in my area. They also claim that the closest tower to me is about 1 mile away, so there shouldn't be issues as such with a tower so close. I don't know anyone in my complex who is on AT&T to see if they are experiencing the same issue. So AT&T seems to think there might be an issue with the phone and i might need to do a warranty exchange. Any ideas before I flash back to stock and exchange it out?

While mine doesn't go that far, it'll cycle between H and 3G for no apparent reason.

Mine does weird **** sometimes, too, on Tue 04_11_M2 radio.
Just today I was sitting around browsing via WiFi, and bam, no signal. Most if the time it'll kick back in after a sec or two, but it stays like that until I intervene by toggling airplane mode, then, it'll be back to 3-4 bars or whatever.
Second time its happened over the last month, so no biggy.
In my house I get lots of signal variations overall, which I guess should be expected.

Well, my phone has done it twice since OP. I just flashed back to stock and downgraded to s-on. I'm going to see about an insurance claim.
Update: Just got off the phone with AT&T. They said that this issue would need to be handled by the warranty dept. So got back on the phone with tech support and they suggested that I go into an AT&T store and have the sim card replaced before they replace the phone, as the sim card itself might be causing this issue. It seems plausible because the sim card is needed for a connection to the network.

4G lit up but no internet?

So inside my apartment I can make calls, but no internet. There's definitely some static and the person on a land line on the other end said every now and then the call wasn't clear. Literally outside my apartment I get 25Mbps 4G LTE speeds. Weird. I guess my apartment is super insulated? LOL no, it's California the walls are paper thin. What gives?
My wife's iPhone on AT&T works fine inside apparently. My EVO on Sprint works really well.
I don't know if there's any special setting or number to dial to acquire different radio towers...I don't know. But here's the most troubling of all. Why does my 4G (and sometimes 4G LTE) icon light up when I don't have internet?
It tries to connect and all but it's spotty and just fails. I literally can't use internet inside my apartment unless it's on WiFi of course...Yet my wife's iPhone on AT&T can and so can my EVO on Sprint.
I will be testing all around my neighborhood and the San Francisco area...But I keep on Sprint for not having LTE...But if I can't even use the damn phone on AT&T consistently I guess slower speed is better than no speed.
Anyone else with this issue? I'm curious since it's a new phone, new radio, etc. Is it known to have issues indoors?

this sounds similar to some of the problems others are pointing out in all those threads complaining about wi-fi. various fixes being offered. also at least one person had said htc is aware of the problem and claiming there will be a fix by the end of may. you may want to check the other threads.

Mobile data on in settings??
Sent from my HTC One X using xda premium

Yes it's on. It's just really bad inside my apartment and even on my porch (bad as in doesn't work and I have to use WiFi)...I thought maybe some sort of dead zone but again my wife gets signal with her iPhone. I hope it is something that gets fixed. If I can get this amazing 4G in my apt as well as down the block, I'll be a very happy camper.
If I can't use my phone in my apt ill be uh well I might be going back to sprint
Sent from my HTC One X using XDA

tom_m said:
Yes it's on. It's just really bad inside my apartment and even on my porch (bad as in doesn't work and I have to use WiFi)...I thought maybe some sort of dead zone but again my wife gets signal with her iPhone. I hope it is something that gets fixed. If I can get this amazing 4G in my apt as well as down the block, I'll be a very happy camper.
If I can't use my phone in my apt ill be uh well I might be going back to sprint
Sent from my HTC One X using XDA
Click to expand...
Click to collapse
call att and see whats up. Something isnt right.
I was with sprint, good thing i left. I have used more data in 2-3 days than i did with sprint in a month. Lol

Yea I would call AT&T. I think your phone may have a bad 4G chip. I had to send a phone back for every 4G issue in the book.
I just wish AT&T LTE was 25+mbs were I live.

I'm on 4G now inside. I didn't move the phone at all. It was on WiFi and after turning it off on then off a few times the 4G picked up. I see it now as HSPA+ and sometimes it bounces to LTE. But it seems to be working...at least long enough to post this message which is an improvement...
Sent from my HTC One X using XDA

Walked around ny apt. Into the room I had no signal in before for sure... Seems ok. Bars dropped to one but now back in bed I have 3.
Also tested GPS directions today for fun and every few blocks it would lose GPS signal.
Never had such issues on Sprint and I'm not in the boonies...I'm in silicon valley of all places lol.
I don't know...how can you test for bad 4G chip? How can you test signal strength and what do I tell AT&T and what can they do for me? Or will they just say I'm unfortunately in a bad area?
Sent from my HTC One X using XDA

just a comment. i have not had your problem, but i've been following these threads wondering if the problem will eventually turn up for me. i've placed the widgets for mobile and wifi on one of my screens so i can access these easily. turning on mobile while wifi is on does not appear to overrride wifi, but turning wifi on while mobile is on appears to override mobile, as the 3g/h signal for at&t disappears. i'm doing this from home, so i don't know if it works the same way upon leaving home, but maybe... i should also add that i'm on an int'l one x using at&t prepaid.

Played with it some more. Here's how it works. When on WiFi it uses WiFi like it should and doesn't use 4G/mobile network.
The icon for 4G is lit. However, I looked under settings this time more carefully. It says disconnected underneath. If I turn off WiFi it attempts to connect to mobile network but fails. Endless loop.
I turned off everything. Turned on airplane mode. Turned off airplane mode (black box notification pops up with "preparing SIM card" and goes away). The mobile network connects now.
Right now my signal icon seems to switch back and forth from no bars with an X to 2 with 4G and LTE lit. I can't post this message when there are zero bars, so the icon I guess is now accurate. I'm not moving, I don't know why reception would be bad or off/on....can any other electronics cause well known interference?
But at least I could connect. I'm not sure if it was luck or if turning on airplane mode made it easier to reset itself.
Sent from my HTC One X using XDA

I know my speekers at home seem to cause some interference, but the phone win's so then all you hear is a crap load of buzzing.
How I would test for this is to go to a AT&T store and do a "vs" on # bars/holding bars and the DBM rating under "about phone">"status".
If they are both the same then you may need to call AT&T about this. (I hope you don't have to call them 10 times like I did with the big red.)

Tried turning off my speakers here...Still bad. I mean the speedtest won't even complete. I'm stuck on the upload, the download was .74Mbps... 185ms ping. The signal isn't consistent. It says LTE then it goes away. I'm just bouncing around between HSPA, LTE, and nothing at all. Despite the phone not moving...This thing just can't stop hunting for a network.
Under the battery use, clicking on the graph expands it and shows the "mobile network signal" and the bar is 90% or more all yellow and some gaps of nothing even. Some slivers of red.
EVERYTHING else about the phone is amazing...It's just behaving as if I was in the middle of no where or something, but I'm in a small city.
I now know why my friend is ditching AT&T for Sprint I guess...But I'm screwed there too, no LTE and ugly phone design. It's like the HTC One is just some giant tease. A mythical Unicorn. Magic dragon. I just keep chasing it, but I don't think I'm ever gonna catch it

sprint is going to have its version of the one x - the updated evo, i believe, due out this month.
but you should just take your phone back to at&t. others have done so and gotten replacements.

So does it act like this:https://www.youtube.com/watch?v=rDxJoGv3FLA&feature=channel&list=UL
If so, you likely have a bad phone.

so it's a thing? like i can just roll in and be like "i think this phone is broken..." and i'll get a new one? and it's common?
okie dokie. i'll go do it tomorrow.
my internet is kinda like that video. slow and connection is lost.
BUT i have seen it really fast on the speedtest.net app.
on a side note, i did a factory reset and since (just about an hour now) i have not yet seen the constant connect/disconnect issues that i did before.
so it's pretty slow inside my apartment but it's at least consistent. outside it was fast on the LTE. 15Mbps down on the speedtest.net app. again the connection did not drop.
so i can deal with a little slow inside... in the bathroom the densest part of my apartment it was down to 1 bar but still, the mobile network was connected and despite it taking foooooreever to download an app, the play store at least did not fail on the download.
so better, but not perfect.
trying the speed test right now, it failed. thing says 4g lte up top too...why it would fail when the thing says it has signal, i just don't know.
can a phone be broken in this manner? intermittently work? i would say then at that rate its the area. bad signal in the area. ...and if i went into the store and said i want a new phone, i feel as if though they would just say it's the area you're in and the phone is fine... but how is it bad signal when it says LTE on there? and when every other device (a phone on Sprint and my wife's iPad and iPhone on AT&T) work fine? i can't imagine it's a bad area or apt. insulation. but how can the phone be bad if it works "some" of the time?
anyway. i guess i'll go see if i can trade it in.

Mobile network turning on and disconnected with 3 bars 4G LTE
I experienced the same problem after using HTC One X for the first day. I was able to get almost 30 M download and 26 M upload in my house on May 6th but lost the connection to mobile network on May 7th at the same location. When I turn off Wi-Fi, phone tried to connect to mobile network but went into the loop of turning on,disconnect while mobile network button is on. I went through 3 AT&T tech service even got a new sim and did factory reset but the problem just won't go away. The last AT&T tech service told me it is a defected device which I really don't agree. I think it is more an issue with HTC One X working with AT&T 4G LTE. I hope HTC & AT&T can solve this problem soon.

Data dropping

My phone has dropped data randomly two times this morning. I could only get it back by doing a switch to airplane mode. Anyone else with this problem? Is this a phone issue that I need to get a new one?
Sent from my HTC One X

Mine has dropped several times. when coming to and from work. It seems to always happen when it connects to wifi. when i leave work and its wifi, i lose all signal entirely.

I don't use wifi though that's the thing. I called ATT and they said it may need a new simcard......which this was. So I swung by and got one and the lady at the store said that my phone may be going bad! LOL wow I love how they train their people.

YES. Most definitely, this is the same problem I'm experiencing. I had another thread posted about how the 4G icon was lit but there was no signal. The icon now seems to be a little more accurate...But still.
At home I switch on WiFi so I don't run up my data but if I look at the settings for mobile network the status underneath in gray text keeps showing that it connects and disconnects. Endlessly. The phone isn't moving. My wife has signal on her iPad and iPhone (I know those are 3G).
I have to turn on airplane mode and then off...Then mobile network on and it seems to help a little. However it's still super spotty.
This is pretty much only indoors but I don't know. I'm going to go around town and try it out. On their coverage map I'm in a big zone of LTE coverage. Outside I have seen 30Mbps on LTE using speedtest.net app. So I don't know. I thought it was very odd given the houses here in CA don't exactly have super thick insulation and every other cell phone (Sprint, my wife's on AT&T, etc.) seem to be AOK. It's just this new One X that just can't stay connected to the 4G.
Going under settings > about > network ...
I see my signal strength....some readings are...
-109 dBm 4 asu
-101 dBm 6 asu
-107 dBm 2 asu
I have no idea what values I should be seeing - what is considered good?
Mobile network type says HSPA. Service state says in service. Icon up top is 4G with one bar. If I turn off WiFi I could not load a web page or anything. That's what annoys me. I usually see like 2 bars and that's fine...But if I see the damn bars and the 4G icon....I sure as hell expect the data to work, even if a little slower.
It's just SUPER flaky. Again outside seems to help but to be honest I haven't sat and watched it. For all I know it could be connecting and disconnecting over and over outside as well but just have a stronger connection when it is actually "on."
I'm annoyed and speechless. I'm not in the boonies. I've never experienced anything like this before. I'm actually at my desk in front of a window. Uh...WTF?

Just picked up lunch and watched the data while on the trip.
This phone is unusable. It's gotta go back. Well, I guess it's welcome back Sprint. Sooooo disappointed.
All I got was HSPA. The only time I get LTE and those fast 30Mbps down is at night time. AT&T is such a joke and their network is NOT ready for this phone.
I'm in Palo Alto, CA. It's not the middle of no where. This is embarrassing. Either that or somehow I have a defective phone or SIM card or something I have no clue here...It's really really bad and I'm obviously not the only one.
3 days and it's been horrible, the only reason why I didn't notice sooner is because I've been using the phone on WiFi most the time.

tom_m said:
Just picked up lunch and watched the data while on the trip.
This phone is unusable. It's gotta go back. Well, I guess it's welcome back Sprint. Sooooo disappointed.
All I got was HSPA. The only time I get LTE and those fast 30Mbps down is at night time. AT&T is such a joke and their network is NOT ready for this phone.
I'm in Palo Alto, CA. It's not the middle of no where. This is embarrassing. Either that or somehow I have a defective phone or SIM card or something I have no clue here...It's really really bad and I'm obviously not the only one.
3 days and it's been horrible, the only reason why I didn't notice sooner is because I've been using the phone on WiFi most the time.
Click to expand...
Click to collapse
how fast is the HSPA you're getting?

1-3.56Mbps down and 0.04-1.03Mbps up.
Out on the street downtown.
Best I've ever had was at night on LTE 30Mbps down and like 17Mbps up.
All to the same test server. Trying servers several states away it varied, sometimes I'd even see 20Mbps down to a far away server.
Again this is all WHEN I'm actually connected to the data network.
The thing just can't hold a connection. Constantly dropped.
edit-- ok so right now same time of day, servers, etc. Sprint's 3G is a little slower, but at least I'm not getting dropped.
and on a side note, i got a REALLY helpful lvl1 tech support lady on the phone. much better experience than i thought. there was an issue in the area before. but basically i'm going to give it another shot. if no good tomorrow, swap for a new phone. they'll call me back friday and we'll see... crossing my fingers.

Any update on this? I've got a new One X and work night shifts twice a week. I've notived tonight that the data drops when the phone is idle and obviously nothing pushes.
There's got to be a way of turning this off. I can see why HTC would call it a feature, but there has to be a flag or a switch somewhere....

Data gone after going to a different city, anyone else?

Today I went from Houston, TX to Waco, TX and had a strong 3g signal in most places and the occasional lte. However, when I got to Waco, my signal dropped to absolutely no data whatsoever when I would normally have lte. I can call and text just fine, but data is gone. I've done countless reboots, airplane mode toggles, network mode switches, profile/prl updates, but nothing gets data back.
Has this happened to anyone before, or has anyone happened to be around Waco today and have the same thing happen?
Sent from my GT-N8013 using Tapatalk 2

I'm experiencing a similar issue in NYC with my data connections dropping constantly. Even though I know my issue is the phone itself as even my wifi will not stay connected. All of my connections may stay on for a few minutes, maybe even a half hour, but then the icon disappears and the connection is gone. Then it will come back, usually within 5 minutes, only to disappear again shortly after.
No clue what's going on, I'm running stock, haven't rooted. I did install the new update recently, but I'm fairly sure it was happening before that, I just assumed it was poor service from the hurricane damage tho.

If it wasn't for your wifi, I'd say it would have been from the hurricane.
The problem for me is that my wifi is fine, and I usually have a great signal is most places in Waco. I usually drop down to 3g in buildings or roam when I go below ground (for a class, etc), but I've never had an entire loss of signal like this. It could be possible Sprint is working on a tower here, but you'd think they'd have more than one tower to govern the data for the entire city.
I think if my data isn't back by tomorrow, I'm visiting a Sprint store to see what's up. Until then, I'm just glad I live on campus and my university has wifi all over the place.
Sent from my XT897 using Tapatalk 2

This is not entirely related, but I wanted to throw it in somewhere: yesterday I was in a different city, in a part of town that apparently has a very poor Sprint signal. I put my phone down, and when I picked it up 10 minutes later, it was SUPER hot, hotter than a phone of mine has ever been. It also drained around 15% battery in those 10 minutes! I guess it was from constantly trying to connect to the network, and I don't think it was even 3g.... But I've been in poor service areas and have never seen a phone get that hot before.

Well, I feel stupid. Apparently, when I was turning my GPS off with my toggles, I hit toggle mobile data on accident. Silly me.
Sent from my XT897 using Tapatalk 2

[Q] Weird Signal Issues

Ok ladies and gents. I swear I used search, and even searched a few other device threads.
Remember the big-todo over the iPhone 4 and how holding it wrong lead to a loss of service? I've got what seems to be the same thing, sort of, with my phone. Lemme explain the whole situation.
I had an iPhone 4, and it got pretty great service. I got at least three bars in my house. My brother made the switch to the skyrocket and initially loved it. all that changed when the signal issues attacked.
From near day-one, he couldn't get it to work. He had to have gone through 20 ROMs over three months. In a last ditch effort, he bought a used S3 and passed the skyrocket to me. I thought I could fix it. Here I am, 4 months later and it's gotten worse if anything.
I've tried 4 different ROMs (including stocks, superlites, CM10.1, and PAC) and have come to settle on CM10.1. I initially had UCLi3, and thought that was the signal problem, seeing as when I went to UCLL3 it got slightly better, and then UCLK4 was working better than my iPhone did for about three days. It tanked overnight and out of frustration I switched to the UXUMA7 and it worked even BETTER for about a week before it went south as well.
My APNs are correct, I know that much. I switch to AT&T Phone, and I will get a little phone service if I hold my phone up and squint just right when standing next to a signal tower. AT&T LTE will give me great service in a heavy service area by a tower, but zero phone service. I was able to make one phone call yesterday, but had to use bluetooth, as the running theme here as well is that it always loses service the minute my hand/body is within a foot of the phone.
Any ideas before I throw caution into the wind and shell out for a new phone? I'm about to live abroad in about three weeks, so I may have to anyway, but I'd rather not pass a lemon to someone else.

Im guessing its the LTE problem that 4.2.2 roms have they changed how it calculates how many bars shows with signal dbm. Its the same signal just shows up as less so just use whatever radio you have had the most success with leave apn at AT&T LTE. You could try going to settings, mobile networks, network operators then choose choose automatically it might give you a more steady connection but its not really required.
If you still have problems you could take out your sim card and use *#2263# and change band to WCDMA all insted of automatic and that should solve your problems.

I typed it in like you have it there to no avail, and tried it again using an astrisk at the end as well. Nothing. Is that the right code? Seems to me I've read somewhere that CM disabled using that...
*Edit: Found the code for "phone info" which worked, and within that was a radio preference setting. But no WCDMA All, so I put it on WCDMA Preferred. My next question is that if ATT is GSM, why will this help even if I can get to the RF selector?
*Edit 2: Confirmed. ROMs not running touchwiz will not run most of the codes. I'm flashing the stock 4.1.2 to see if I can get that code (and subsequently the right RF option) to work until I can figure out how to switch RF options on CM 10.1.
*Final Edit: Found the option, changed it, realized what was going on. I'm on AT&T, meaning GSM and LTE. When I changed it to CDMA All, it switched me over to a strictly HSPA network, which ignored any other available ones. I got to playing with the settings and found that not only are they not the answer to my problem, but they had the potential to make it worse. I really feel that the issue at hand may be hardware. I blew out the RF chip on my first smartphone years ago (a state-of-the-art Palm Treo 700w) and it acted this same way. I'm wondering if the owner before us wasn't screwing with it and messed it up. A little tin foil can answer that question.