Suggestions on what to do... - EVO Shift 4G Q&A, Help & Troubleshooting

Hi,
I've had my shift for about a year now, and it has treated me wonderfully so far. The fact that the phone has so much more power under the hood than many realize is amazing, but there seems to be an issue I've been having for about 2 weeks now is bringing me here looking for advice.
My Shifts regular phone headset seems to have died. Whenever I place a call, or try to listen to (e.g. vm) anything via the headset I can't hear anything. When I play anything through the speaker though (music, calls ON speaker) it works fine. At first I thought it was the ROM I was using so I did a complete wipe and flashed a fresh one (even tried a stock rooted) but nothing would work. I do have the insurance for it, but my dilemma is that I think having a stable root and being completely set in that manner is more important to me than having a working headset on a non-rooted 2.3 phone.
Any suggestions on what I should do to possibly fix the phone? And ideas as to whether or not I would be able to root a replacement phone as I've rooted this one and not have any issues (temp root only, etc etc)? I'm stuck because not many understand why I wouldn't want to get a new phone except me.. lol.
Thank you in advance

Well I know 2 Saturdays ago my ear piece quit working so did my girls and my dudes all at the same time
Sent from my LG-P925 using Tapatalk

Really? Wow.. and the speaker works fine? That's crazy because that's exactly when mine stopped working, did you get a new one?
Sent from my HTC Shift using XDA App

Related

[Q] can't hear other side in conversation.

hey,
I bought the nexus s (9023) about two months ago, stock rom, not rooted, and for the last week or two, it started making problems.
about 1-5 times a day, i can't here the other side at all. as if it's on mute. not even the ringing tone, before I'm answered. the only thing that solves it, is to restart the phone.
in other forums i've read that it's a mess, and that i should use my warranty. the problem is i bought the phone abroad, and shipping it should take about 3 weeks.
is it a common issue?
can i solve it alone, mabye by switching to a non-stock rom?
i'll be very happy to read some good news here, but bad news is better than non.
thanks a lot,
tal
p.s, iv'e downloaded system info to monitor the temp, and it doesn't happen necessarily when the phone is hot.
I don't know... I am rooted, I have used 5 different roms since purchasing my phone.
Stock
CM 7
Savaged Zen
Oxygen
Soju
I have also used several kernels
CM Stock
Netarchy
Matrix
James Bond
Trinity
So far, on all roms and kernels I have experienced the same problem. You make a call and it connects, looking at the screen the time counter is going but there is no sound; it will sit there and hold the call for 30-55 seconds then ends call. A quick redial and bam it works. Some people have reported that they answered and there was nothing. I don't know, it's really obnoxious.
The other, more annoying problem is that randomly on calls throughout the day the phone will just reboot itself. Right in the middle of a call. AHHHH like 3-5 times daily!
help, anyone?
i'm stuck with this, and a bit clueless.
Well, somehow I discovered that the problem is related to the bluetooth. as long as it's turned of, nothing will happen, on the other hand, when I use my earphone (most of my conversations happen while driving) i need to restart my phone every 1-2 calls
any ideas?
just u can't hear other one while calling u?
thanks.
so it was in the beginning, but now neither of us can hear the other. no matter who made the call.
and again, only when BT is working.
tal89 said:
so it was in the beginning, but now neither of us can hear the other. no matter who made the call.
and again, only when BT is working.
Click to expand...
Click to collapse
If u can hear him,just press and then unhold it ,then u can hear him.
Sent from my Nexus S using XDA App
it's quite obvious, unfortunately it doesn't work.
cutiyar said:
If u can hear him,just press and then unhold it ,then u can hear him.
Sent from my Nexus S using XDA App
Click to expand...
Click to collapse
i can't hear, and he can't hear as well.
tal89 said:
i can't hear, and he can't hear as well.
Click to expand...
Click to collapse
hehee its problem ,
am really disappointing with nexus s , but i dont have enough money to buy HTC product again.
any solution?
Hi, did anybody have any solution to this problem?
I live this problem on almost half calls of specific numbers.
I am desparate...
Try setting discoverable timeout to never? Have you tried a different Bluetooth device?
Sent from my Nexus S 4G using xda premium
I have this problem too. This seem to happen on some Kangs and nightly, but not all of them. I can't hear when someone calls me. But when I call someone, I can hear them. I always have Bluetooth off (do not use them).
I live the same problem. No problem for outgoing calls. For incoming calls, I cannot hear caller's voice but they can hear me. It is not for all numbers.
I am on t-mobile and nexus s (cynagenmod nightlies). For all incoming calls from tmobile numbers no problem. But for almost all other carriers, it is just random.
I feel like I started having this problem after updating from CM 7.0.2 to 7.1 RC and thereafter(but not very sure on this).
If anybody still following this topic, I would suggest you to contact samsung if you still have warranty. On the second attempt they sent me a brand new phone with box and accessories.
Sent from my SGH-T989 using XDA
Or, you might give it a try with a different radio for your model:
http://forum.xda-developers.com/showthread.php?t=1116884
If you go this road, make sure you backup your EFS folder.
What i would do is if it is still in warranty just give it back to them and they'll probably give you a new phone. Since you said it takes 3 weeks to ship, just wait for it and use another phone if possible. Its not like your life is going to end. I think the problem is, not every phone is the same so there will be problems especielly when flashing a rom. For example unstable roms might not allow you to use this app or have serious effects on your phone.
Best to give it back to samsung and get a replacement.

[Q] Reverting to S-ON/Bluetooth issues

I recently got my MyTouch4g Slide. I used Revolutionary tool to S-OFF the device, and all was well.
After a day of usage, I began using the Bluetooth hands free in my 2010 Chevy Equinox. The connection synchronizes, no problem. All the hands free buttons work, and everything appears functional. However -- I have no audio, either mic. or speakers, from the bluetooth. I have to activate the handset to have a conversation, rendering the bluetooth useless.
Before I reached out to anyone, I performed the RUU installation from http://forum.xda-developers.com/showthread.php?t=1178082. It reverted my hboot, system, etc back to stock. However -- it is still S-OFF. So how do we get S-ON back on this phone?
Regarding the bluetooth -- I began escalating to Tmobile and GM. GM said there's nothing wrong with my Bluetooth (it works with all my previous 3 phones OK). Tmobile says this is not a known issue.
I called HTC support, and they said it sounds like a phone hardware issue with the phone.
I would like to know two things, which I cannot find searching the MT4G Slide forums:
* How can S-ON be restored? (I thought the RUU would handle this). I want to know in case I have to send it back to HTC.
* Has anyone had these bluetooth problems, before I send it in for a replacement?
Thanks!
I just got my 4G Slide yesterday, and haven't yet paired it with my '10 Equinox.
I'll do that tomorrow and let you know if it works or not.
I haven't had any issues with bluetooth on my JVC deck, but there is no problem sending back an S-OFF'd device, I've sent back several with no issues. Some devices are factory S-OFF, plus they never check returns.
Thank you both for the feedback.
jonnycat26, Please let me know what happens when you pair with your '10 Equinox. It's great to have someone with the same device and car make to test, to confirm if it is in fact my device.
I was able to successfully make a call without any issues. Or at least, I had audio when I did (call went to VM, and I did not leave a message).
jonnycat26 said:
I was able to successfully make a call without any issues. Or at least, I had audio when I did (call went to VM, and I did not leave a message).
Click to expand...
Click to collapse
jonnycat26,
You were able to hear audio and use the mic in your 2010 Equinox?
I guess this confirms I have a hardware issue. Sucks.
Thanks again!
Seeing as the Bluetooth worked for you & GM believes it's a phone defect, I am getting a replacement from Tmobile.
I know you already said you are getting a replacement, and for as expensive as this piece of hardware is - I wouldn't do anything different.
Figured i'd chime in though, have no issues pairing and using my bluetooth headset. Lets me do voice and listen through the headset.
My hands free (genius) mode works, though I don't use it.
I have a bluetooth game controller coming, somewhere in the mail. I know that's a whole other animal with it's own set of issues, but i'll let you know how that goes.
Thanks for posting about this, though, and it's lucky you found someone with the same stuff to test and compare. Bluetooth is going to be the next focus of my attention, I think, so i'm soaking up everything I hear about it now.
If anyone has found a way to make it S-ON, i'd love to know just to know, but it shouldn't be a problem with warranty issues if it was S-OFF.
The worst part of this for me is I have only had this phone since Friday. Further, it was a replacement for a faulty LG G2X, which I had RMA'd three times, and was about to cancel my service before they finally offered me a different phone.
So this will make my fourth return to Tmobile (three G2x, now a MT4G Slide) in the past three weeks. I have also spent about 30hours on the phone with them in the past three weeks.
I am truly exhausted dealing with this, but I really like this phone (the G2X sucked). So I am giving it one more shot.
They are sending me a new phone again, and not a refurb, so that's nice.
It's worth it.
I'm on my second one, I returned my first one. They took it back without hesitation, so even if you have to go through one or two at the beginning it's worth it.
You have the first few days after you get it, to exchange a defect for a working model. With this phone, it's absolutely worth it. Too expensive to walk around with a damaged one - especially from the door.
Your patience will be rewarded with an awesome piece of tech in your hands, it's amazing what you can do with this device.
foodogg said:
jonnycat26,
You were able to hear audio and use the mic in your 2010 Equinox?
I guess this confirms I have a hardware issue. Sucks.
Thanks again!
Click to expand...
Click to collapse
I was able to hear the audio without any issue. My call went to VM, and I didn't leave a message, so I can't say for sure the mic was working, but I have to believe it would.
arcticwolf8 said:
I haven't had any issues with bluetooth on my JVC deck, but there is no problem sending back an S-OFF'd device, I've sent back several with no issues. Some devices are factory S-OFF, plus they never check returns.
Click to expand...
Click to collapse
Weird, I have a JVC KW-NT1 that worked AWESOME with my TouchPro2 but this MT4GS has a bunch of static issues which pisses off my callers...does anyone know of a fix or a BT radio software update perhaps? It sucks that the phone is LIGHTYEARS ahead of my ancient TP2 but the BT might make me return it
btw
I'm working on a full unroot script with s on on the Dev page.... Expect it released next week
xmc wildchild22 said:
I'm working on a full unroot script with s on on the Dev page.... Expect it released next week
Click to expand...
Click to collapse
That would be handy indeed.
sent from my RuBiX infused MT4G Slide using xda premium

Major Atrix 2 Problems!

So I've been an atrix 2 user for a few months now and its a great phone...Its rooted and I just updated it with the latest ota update and kept the root and all of that good stuff. But one problem that I have been having with my phone for the past month or so is that my phone will heat up like CRAZY! Then restart and then it wont let me use it. The power button doesnt let me turn the phone on...nothing. The only way I can wake my screen is by putting the power chord in and that just lights it up it doesnt let me use the phone. It shows that everything is functioning in the background I still receive messages and my apps update ect. but I cant use me phone. It goes through this cycle for about an hour then completely kills my my battery after it runs its course. I have no idea whats wrong with my phone. Can anyone help or have any suggestions? Anything would be appreciated!
Sounds to me that you need a new phone. Is it through att? You may need to do a warranty exchange.
Sent from my SAMSUNG-SGH-I997 using xda premium
Yes it is from AT&T I had to do the same thing with my original Atrix, but I traded up for the atrix 2
That doesn't sound good... the OG Atrix had a couple problems with that but I've never experienced it on the A2. You should try for a warranty exchange... look at the noob thread and flash the fxz, apply the OTA update and then take it to AT&T.
Yeah I think thats what I'm going to end up doing...this especially happens when I'm listening to music on my phone it loves to freak out on me. I'm just starting to have my doubts about Motorola because my original Atrix gave me problems and I so desperately hoped that it would be fixed in this version. Is it just bad luck I got 2 phones from motorola that both freak out on me? or is it me?
I'd say bad luck.
I've had 4 A2's and, while none of them were perfect, none of them had overheating problems.
Sent from my MB865 using Tapatalk
drummerkid_167 said:
Yeah I think thats what I'm going to end up doing...this especially happens when I'm listening to music on my phone it loves to freak out on me. I'm just starting to have my doubts about Motorola because my original Atrix gave me problems and I so desperately hoped that it would be fixed in this version. Is it just bad luck I got 2 phones from motorola that both freak out on me? or is it me?
Click to expand...
Click to collapse
My A2 is my first Motorola. I have an htc and two samsung phones and my A2 is by far more stable than any of my previous phones. I would say you have just gotten two bad phones. Do what you want to but i would stick with Motorola. Just giving my two cents.
Sent from my SAMSUNG-SGH-I997 using xda premium
Try cpu master pro and change governor to ondemand.
It works on my a2.
The major problem for me now is sometimes signal dissapear.
Sent from my MB865 using Tapatalk
kojitabe said:
Try cpu master pro and change governor to ondemand.
It works on my a2.
The major problem for me now is sometimes signal dissapear.
Sent from my MB865 using Tapatalk
Click to expand...
Click to collapse
Interesting if the problem is the governor...
Also for a free way to change the governor use ROM Toolbox (free) and go to CPU Sliders.
Sent from my MB865 using Tapatalk
I really appreciate all the feedback from everyone, what I did so far is that I flashed the stock FXZ file back to my phone then updated and seems to be working like a charm buy I still think its too soon to say how its really doing. Instead of second guessing myself I think Im going to get a fresh A2 today hopefully and I won't have any problems like this again! Thanks to all the help from everyone!
Sent from my MB865 using XDA App
drummerkid_167 said:
I really appreciate all the feedback from everyone, what I did so far is that I flashed the stock FXZ file back to my phone then updated and seems to be working like a charm buy I still think its too soon to say how its really doing. Instead of second guessing myself I think Im going to get a fresh A2 today hopefully and I won't have any problems like this again! Thanks to all the help from everyone!
Sent from my MB865 using XDA App
Click to expand...
Click to collapse
I would also take a good a good look at the apps you use, some apps leave themselves running and take some good resources, and can cause your phone to overheat because of this. take a look at the resources in use from settings --> applications, go to the running apps tab, do this when the phone is hot and see what apps are taking a good bit of resources. Just a thought, as I have had this issue before, not on the exact phone I am on now, since I found the offending app and did not reinstall it the last time I got a replacement of this phone.
I wish I could check it when my phone gets hot, but when it gets to that point my phone boots me out. Not letting me touch it at all :/
Sent from my MB865 using XDA App
Apparently the systempanel app (paid version in the market) can identify which apps were running when your phone rebooted, won't tell you whats causing it but may get you close. I dunno how to use th app very well though but I heard good things.
Sent from my Motorola Atrix 2 with AT&T 4G
I've started having this problem today as well. Two days ago I noticed a very quick drop in battery level to almost nothing after going below 50%. Same thing yesterday and today. Today was the first day that I noticed the severe overheating.
I'm using the SCv5.1 ROM. I've been using it for about a month without trouble, but any chance that's the cause? I'd love to not need to return the phone to ATT.
The only time I experienced these symptoms was after restoring an AtrixBlaze ROM.
Flashed back to stock w/root, then OTA. Restored a backup of RebelROM. No problems since. Was very concerned for a day that it had some how damaged the phone.
I've been through Iphone, Palm Pre and HTC, this phone beats them all except for WebOS which was the software on the Pre. That was an amazing OS with a lot of potential.
Sent from my MB865 using Tapatalk
Using Jimbridgman's advice above, I looked at some of my apps. I had been using Green Power Premium (paid) and it just updated a few days ago. I disabled it and have not had an issue since, but I have yet to go through an entire power cycle.
I bought my Atrix 2 in India yesterday. Everything works like charm except the earpiece. The voice I get from the other party is so shrill that I need to keep my phone away from my ear to understand what they are saying . There are 4 settings in all to change the voice quality of the earpiece but it seems they are of no use. On the last setting, I can even hear my own voice from the earpiece. Also, when I tap my phone around the 3.5mm jack area, I hear a sound that makes me feel that something is loose inside. Is it a known issue or a bug or its just me who’s facing this? What’s the way out? Thanks in advance.

Volume Too Low - Data Drops

Hey all,
I came from the Lumia (yeah, what a nightmare that was) to the HTC One X. It was definitely great to come back to Android. But, I've had the phone for 2 days now and already noticed two problems.
When I was at work yesterday, I noticed the 4g icon at the top looked like it was only sending data, but would never receive it. After about 30-45 seconds it would come back, but during that time, I couldn't do anything on the phone that required the use of data. I tried a factory reset, and it seemed to work just fine. Then on the way home from work, it did the same thing again.
Also, when my wife and I were watching TV last night I got a phone call and could barely hear the phone ring. I checked the volume and it's all the way up on all three sliders in the settings. I tried changing ringtones, and that didn't help.
So, I'm on my 5th phone now with AT&T since April 21st. 4 Lumia's and now this One X and they've all had issues. I'm really at my boiling point now.
Does anyone have any suggestions? I know one of my options is just to take the phone back to the store and swap it for a replacement, but I'm wondering if anyone else is seeing these two issues with their One X? I've Googled it, and there are quite a few threads about each issue, but here on XDA I don't see too many. I trust this forum more than any other.
I really wanted to love this phone too!
Ethere said:
Hey all,
I came from the Lumia (yeah, what a nightmare that was) to the HTC One X. It was definitely great to come back to Android. But, I've had the phone for 2 days now and already noticed two problems.
When I was at work yesterday, I noticed the 4g icon at the top looked like it was only sending data, but would never receive it. After about 30-45 seconds it would come back, but during that time, I couldn't do anything on the phone that required the use of data. I tried a factory reset, and it seemed to work just fine. Then on the way home from work, it did the same thing again.
Also, when my wife and I were watching TV last night I got a phone call and could barely hear the phone ring. I checked the volume and it's all the way up on all three sliders in the settings. I tried changing ringtones, and that didn't help.
So, I'm on my 5th phone now with AT&T since April 21st. 4 Lumia's and now this One X and they've all had issues. I'm really at my boiling point now.
Does anyone have any suggestions? I know one of my options is just to take the phone back to the store and swap it for a replacement, but I'm wondering if anyone else is seeing these two issues with their One X? I've Googled it, and there are quite a few threads about each issue, but here on XDA I don't see too many. I trust this forum more than any other.
I really wanted to love this phone too!
Click to expand...
Click to collapse
Not sure on data, but try volume+ in the play store...it's the go to app for volume issues.
Sent from my HTC One X using Tapatalk 2
I also noticed this low volume problem! I hate it when I'm trying to listen to music!!
Sent from my HTC One X using xda premium
The radio drops are a known problem for some, but have gotten much better with later radios. For volume, yeah check volume+
Sent from my HTC One X using Tapatalk 2
I had that exact problem with internet connection too but 1.85 fixed it.
The sound issue is weird though.
Sent from my HTC One X using xda premium
What's odd is that all day yesterday it seemed fine. It seems time was just the key here. We'll see how this goes.
You can make your own ringtone with any MP3 and any software for sound editing (like SounForge). You can cut some part of the song and make it louder (I advice you to make a preset for equalizer with 120-140% louder and no 60Hz frequency)
P.S. Sorry for my bad English.
I have been having the same issues with the volume with my one x. I emailed HTC about the problem then it auto corrected itself. It all started after this at&t 1.85 update. I haven't factory reset yet, which is what HTC recommended, I hope that enough people complain so HTC actually does something about it. I love the phone though.
Ethere said:
Hey all,
I came from the Lumia (yeah, what a nightmare that was) to the HTC One X. It was definitely great to come back to Android. But, I've had the phone for 2 days now and already noticed two problems.
When I was at work yesterday, I noticed the 4g icon at the top looked like it was only sending data, but would never receive it. After about 30-45 seconds it would come back, but during that time, I couldn't do anything on the phone that required the use of data. I tried a factory reset, and it seemed to work just fine. Then on the way home from work, it did the same thing again.
Also, when my wife and I were watching TV last night I got a phone call and could barely hear the phone ring. I checked the volume and it's all the way up on all three sliders in the settings. I tried changing ringtones, and that didn't help.
So, I'm on my 5th phone now with AT&T since April 21st. 4 Lumia's and now this One X and they've all had issues. I'm really at my boiling point now.
Does anyone have any suggestions? I know one of my options is just to take the phone back to the store and swap it for a replacement, but I'm wondering if anyone else is seeing these two issues with their One X? I've Googled it, and there are quite a few threads about each issue, but here on XDA I don't see too many. I trust this forum more than any other.
I really wanted to love this phone too!
Click to expand...
Click to collapse
4th phone. You one picky SOB?
But I agree, on my Evo lte speaker not as loud as my OG Evo. That said, my OG Evo went thru 3 blown speakers in 2yrs.
Enjoy the phone you have, not the one you invented.
Sent from my EVO using xda premium
scottspa74 said:
4th phone. You one picky SOB?
But I agree, on my Evo lte speaker not as loud as my OG Evo. That said, my OG Evo went thru 3 blown speakers in 2yrs.
Enjoy the phone you have, not the one you invented.
Sent from my EVO using xda premium
Click to expand...
Click to collapse
Yeah 4 phones is a lot...
Most of the its user error, then they ask for exchanges.

HOX speaker volume gets very low until reboot

I've not seen anyone here mention this, but it's being discussed on other Android forums. Thought I'd post here on XDA in hopes that some of the more technical members of this forum might have some input or ideas.
I noticed one day recently that the Google Navigation voice was so low I couldn't hear the directions over the sound of my car's A/C, which I know had not been the case before. All volumes were at max. This continued for the rest of the day, and all ringtones and notification sounds were very low. IT was so dramatic, I just assumed the speaker went bad, and I was going to have to make an insurance claim over a defective phone.
I happened to reboot the phone that evening and instantly the speaker volume was 3-4x as loud as earlier that day. I thought it was a one-time thing, but now realize that this happens 3-4 times a week. I'll notice I can't hear any of the notification sounds very well, reboot the phone, and all is well.
Except, this is a pain in the @ss to have to reboot constantly!
Has anyone experienced this? I thought I would recognize a pattern, like some app I use regularly or something, but nothing seems to make sense... seems very arbitrary, but aggravating nonetheless.
As I said, this is being talked about on a lot of the other HOX forums, but I haven't seen it mentioned specifically here. I almost want to say it started after the AT&T update last month, because I never noticed it before that. I'm on stock AT&T HOX, not rooted, and only a handful of the 'regular' popular apps. I don't even have music on the phone, nor have I ever used earbuds with it.
Very frustrating!
I have had the exact same thing happen, no clue why though.
I started a thread awhile back. Mine does the sane as well.. pissed..hope its software issue
Sent from my HTC One X using xda premium
Same here, I'm leaning towards it being a software issue due to a reboot always fixing it.
What ROM are you on?Custom or Stock?Any mods done to the phone?I had the same issue with the phone volume being to low on a custom rom, until I went into recovery to wipe cache/dalvick and everything was good/loud again.
shortyboy said:
What ROM are you on?Custom or Stock?Any mods done to the phone?I had the same issue with the phone volume being to low on a custom rom, until I went into recovery to wipe cache/dalvick and everything was good/loud again.
Click to expand...
Click to collapse
I can vouch for this solution. I had the same issues on my HOX when I installed a custom ROM.
In the "Special Notes" section of the CleanROM v4.1 notes, it states:
Volume may be quite. If so wipe cache's and reflash the ROM. Volume should be loud again.
Click to expand...
Click to collapse
Hopefully it's as simple of a fix as this!!
I'm completely stock, no custom ROMs, not rooted.
I have the same problem, stock and rooted. I recently started noticing it. It didn't always happen to me.
I do use Tasker to put my media volume all the way down once i exit my car. Then I use Elixr 2 to put all my volumes to high once I use my "home" profile. I think it might be cause of that. Since I've stopped using exlir to raise the volume, I haven't noticed the issue. But I have restarted my phone every 2 days recently for another issue so it is possible that I am fixing it each time before the symptoms start to occur
Sent from my HTC One X using xda app-developers app
Has anyone found a permanent solution to this? It's my only gripe. I have tried two sense roms. I love HTC camera so I don't want asop. Volume plus doesn't help when volume drops off.
Sent from my HTC One X using xda app-developers app
Still no fixes yet? I was using the phone with Navigon Satnav app and it is impossible to hear any voice directions.
Corbu said:
Still no fixes yet? I was using the phone with Navigon Satnav app and it is impossible to hear any voice directions.
Click to expand...
Click to collapse
Do you hear a difference between when it's low and then restarting your phone and trying it again?
Sent from my HTC One X using xda app-developers app
Mine never fixed after rebooting. I'm on my third One X now from bad speakers.
dominican2589 said:
Do you hear a difference between when it's low and then restarting your phone and trying it again?
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
I can't detect any difference and if there is it is too small to detect. I tried to amplify the sound with Volume+ and there is no detectable difference. But if I use the speaker for a call, at maximum volume, it is really really loud so the speaker is definitely capable of more. But with Satnav GPS apps, at default settings, between the One X and my old Galaxy S2, there is a night and day difference
I too had these issues on replacement phone I got from att but it resolved automatically after few days
From beast called HTC One X
this problem causes due to an App, in my case previous version of Viber App caused all this issues....
hope you solve this prob

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