Develop Bugs

[Q] Can't Hear Sound from My Epic 4g's Earpiece only speaker

So my phones been rooted on Aokp for about a month now and its been working fine. However today I discovered that when making calls I cannot hear the other person unless I have headphones or speaker is on? I've already tried rebooting and odin to stock but its still not working? Any ideas or fix

Sounds like the hardware went.
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ccarrillo08 said:
So my phones been rooted on Aokp for about a month now and its been working fine. However today I discovered that when making calls I cannot hear the other person unless I have headphones or speaker is on? I've already tried rebooting and odin to stock but its still not working? Any ideas or fix
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It's the hardware. Unroot the phone if needed and take it to Sprint. They will "look" at it and order a new one if you have insurance. I'm currently waiting for my new one cause of the same issue plus half a dozen more. Tired of being the Tool on the bluetooth just to use my phone normally. I know it has nothing to do with the software because the repair tech tried to 'Odin' it and reinstall everything OTW. This seems to be a common accurance when rooting. I can't be sure in my case cause my phone fell out of my pocket bounced off the concrete and into a pool. I noticed all the problems after that happened. Good luck

"Ghost Touch" Issues

Idk if some of you have heard about the "ghost touch" thing where sometimes when you turn on the screen it'd be like someone was pushing on some of your capacitive buttons and you wouldn't be able to touch or do anything on the screen. Turning off the screen for a couple seconds and turning it on again helps alleviate the problem for me.
How common of a problem is this? It seems that this never used to happen until ICS came around. Is it due to software or hardware like a bad digitizer? Is this something that I should be worried about hardware wise because I'm planning on hanging onto this phone for at least another 6 months and warranty's going to be up soon in a week or two. I'm using The Goodness ROM and agat's kernel if that matters at all. Any input is appreciated. Thanks.

Rf interference with the touchscreen controller in low signal areas.
It happens on some other Samsung phones as well.
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Thank you times. I have been wondering what that was.
sent from my BAD A$$ Epic touch

It used to happen to me all the time, but it hasn't happened in a few months.

It happened a lot on my first etch, but hasn't happened once on my replacement.
Sent from my SPH-D710 using Tapatalk 2

Hello. Thank you for all the replies. So overall, is this something that I should be worried about concerning the longevity of my phone? It happens quite often now like maybe 5 times a day when it used to be only once in a long while.

Yup times is right. This happened a lot to me when ICS leaks first came out way back in Feb ?
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Happened to me alot but been much better since using cm10 mabe once ever 3 days instead of 25 times a day
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http://forum.xda-developers.com/showthread.php?t=1551580
After trying to figure out what nearby was causing the RF intererence so I could eliminate it, I found this thread which explains that the interference originates in the phones 3G radio, not the environment. I just recently started having this problem, and from reading that thread, I think I didn't notice it before only because I was using a kernel with a fix integrated. So if you are having this problem and don't want to do surgery on your phone, maybe try to find a kernel with the software patch.

SupraLance said:
http://forum.xda-developers.com/showthread.php?t=1551580
After trying to figure out what nearby was causing the RF intererence so I could eliminate it, I found this thread which explains that the interference originates in the phones 3G radio, not the environment. I just recently started having this problem, and from reading that thread, I think I didn't notice it before only because I was using a kernel with a fix integrated. So if you are having this problem and don't want to do surgery on your phone, maybe try to find a kernel with the software patch.
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Kernels fixed this? Waaah? Where have I been?
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This has been happening like crazy lately, ever since Hurricane Sandy and also since running the FK09 JB leak. The Sprint signal in my area went from bad to garbage since the hurricane, not sure if the JB leak is also adding to it or not.
It is so annoying I am tempted to actually buy a different phone even though I love the E4GT.

Raistlin1 said:
This has been happening like crazy lately, ever since Hurricane Sandy and also since running the FK09 JB leak. The Sprint signal in my area went from bad to garbage since the hurricane, not sure if the JB leak is also adding to it or not.
It is so annoying I am tempted to actually buy a different phone even though I love the E4GT.
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Agreed Sprint screwed NJ hard as AT&T and Verizon restored services within a week...
On a side note, AT&T's LTE was up and running within 48 hours...Dunno about Verizon cause most of my friends have iPhone's with them. But I was roaming on Verizon full bars the whole time. But guess what happened when I tried to make a call? "Welcome to Verizon, please have a phone card or credit card at handy to make a call". I have roaming under my plan and I would like to use it...especially not crapping out in emergencies.
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[Q] Epic Touch 4G will randomly reboot by itself as soon as I wake it up

Hello,
I have been fairly involved in following this forum, and I think it is undoubtedly the best resource for this phone on the internet. Take a minute to hear my plight:
I bought an ET4G the day it came out in the States. I have tried several custom roms and play with kernels all the time.
About, I'd say...2 months ago, the phone started rebooting itself once a day. Sometimes, the screen lights up by itself while the phone is sitting untouched! The problem got progressively worse, until the phone was rebooting 15 times a day. I installed a fresh stock ROM (rooted), a NEW battery, and the problem went away but started to slowly creep back. At this point, I went back to the stock kernel (was using Agat's), and the problem STILL HAPPENED.
So, I installed a fresh stock ROM, this time unrooted, kept TouchWiz instead of Apex, and did not install any freaking apps, except for the BARE minimum. This time the phone did not turn off. It seemed to have fixed my issue. My speculation was that my phone, for some reason, didn't take the voltage under load quite well. So, I spoke to my friend (who is a Store Manager at a corporate Sprint store,) and he was very kind to help me out in getting an exchange so that I could use the phone the way I was using it (after all, I was still within the 12-month warranty).
It's now been 1 week, and the only modifications I've made have been to install Agat's kernel. THE PROBLEM HAS COME BACK in the replacement phone. So, as a last resort, I undervolted the damn thing -50mV, and even went ahead to underclock it using ExTweaks to 1100 MHz. STILL HAPPENS. I go back to stock kernel, uninstall all tweak apps, STILL HAPPENS.
So, I install a fresh ROM, it gets fixed, gets progressively worse, and then THE PROBLEM COMES BACK.
I'm going crazy, XDA. I just want to have a working phone until July 1st when I can upgrade. Is there any way I can diagnose what exactly the phone is doing when it reboots by itself, and what it's doing when the screen wakes up by itself when untouched? Other tips, suggestions, or anything else that could lead to a resolution?
Note: The phone reboot slightly less often when using stock kernel vs. the latest Agat kernel (0.6.7). It also appears to occur less often when I use default touch-wiz. Lastly, the problem goes away after a flash for almost 24 hours, and then it starts creeping back.

Why did you use undervolting as a last resort if your phone had problems? It would only make things worse
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locoboi187 said:
Why did you use undervolting as a last resort if your phone had problems? It would only make things worse
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I mean, I've had the new phone for a week. I haven't done anything crazy with it, and it's already doing weird stuff.
I never over-clocked either of the phones, and once I learned under-clocking was known to help, I tried that last.
There has to be a way to diagnose this thing:
I've been monitoring the last seen services before shut-down, and the last 2 active services on the last shut-down were:
1) [dhd_dpc]
2) system/bin/surfaceflinger

My phone did that and I ended up getting a replacment. Stupid referb had a problem with the CPU. New phone works perfect
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m4xwellmurd3r said:
My phone did that and I ended up getting a replacment. Stupid referb had a problem with the CPU. New phone works perfect
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I will return the phone to the store once again in hopes that a replacement gives me a better experience. I'll report with updates.

[Q] Looking for SGH-T989 hardware knowledge

I have a very strange wifi/bluetooth problem that seemed to come out of nowhere and I think it may be hardware but I'm not too sure. When I format the system and install a new ROM everything works as it should for a little while but then within a few hours the software toggle switch grays out and wifi and or bluetooth don't respond. Bluetooth always seems to go out first but wifi follows soon after. I thought originally I had a corrupted driver or something but no matter how many different ROMS I try, going from gingerbread all the way to jelleybean and the phone always acts the same after a seemingly random amount of time. I don't know too much about how bluetooth/wifi drivers work so this may still be the issue.
Sometimes by toggling the various switches off/on a bunch wifi will go back on, and even more rarely bluetooth will work without a system format but it never stays working. If anyone knows what the problem may be I would appreciate some help or if you can point me to a component level diagram that would be helpful too. I have been looking around for a few weeks now with no luck. I never dropped the phone and it looks like I just pulled it out of the box. I did take it apart and look for loose connections and cold solder joints (I have quite a bit of experience at component level repair) but found nothing.
I did try to go back to stock GB with Odin and that was about the same, it worked for about a day and then the problems crept back up.

I thought for sure someone would have an answer.
Sent from my SGH-T989 using Tapatalk 2

I have a very similar issue but it only affects my Bluetooth. Sometimes it works, sometimes it doesn't. I haven't been able to pin point it. I've done the exact same steps as you. I just chalked it up to it being a hardware issue since I got my S2 from a lady that ran over the phone with her car. I just replaced the glass. She knew it could be fixed but she wanted me to have a better phone. What a sweet old lady. ANYWHO, I would love to see some more input on this.
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jmpsatx said:
I have a very similar issue but it only affects my Bluetooth. Sometimes it works, sometimes it doesn't. I haven't been able to pin point it. I've done the exact same steps as you. I just chalked it up to it being a hardware issue since I got my S2 from a lady that ran over the phone with her car. I just replaced the glass. She knew it could be fixed but she wanted me to have a better phone. What a sweet old lady. ANYWHO, I would love to see some more input on this.
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I switched to twrp and the problem isn't gone but it is better. I'm not sure if it's a coincidence or not but this seems like a positive step.
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Loose frame, random reboots, screen issues, camera failure and screen flickers

Hello about a month ago I purchased two of these devices one was for my friend one was for me. Mine had a loose frame that when you would push slightly on the bezel near the volume button you can hear it goin in and creaking as if it was not solid. I compared to the other device I bought and with other s4s and it felt more solid than mine so I changed for another. My girlfriends on the other hand lives in New York and she bought one on her own terms from a store I purchased mine through online. My exchanged device came in and with a purple tint on bottom half.of screen its slight and noticeable on grey backgrounds while brightness is low. My phone also randomly rebooted once and has had multiple camera failures..it seems to have gone away tho for me. On the other hand my girlfriend has now exchanged her phone once because it was rebooting constantly and having other problems and now the phone that they gave her for a replacement has tons of random reboots while doing pretty much anything it's very random I have been on the phone with her and it suddenly rebooted on her causing our call to end. She is also complaining about camera failure and reboots aren't seeming to fix it.. As it comes back and anytime she switches to front camera..so pretty much all of our devices have issues and even the exchanged ones do too. And they were purchased in diff states and one in store the other online. I have had every galaxy phone since the s2 including the note series and I have never experienced so many problems out of the box and I was an early adopter for all the other devices. I converted my girlfriend from the iPhone to this phone and now all she is having problems and is getting frustrated because she says that she's been in important calls and her phone has just rebooted for no reason amongst other problem she is facing. Her first device didn't have the camera failure and neither did my first device but now both of our exchange devices are giving us, failures.. Not really sure what to do I'm already out of buyers remorse I feel like calling to mobile to get yet another one but not sure if it will give it to me.. I'm a huge fan of samsung galaxy 9 but this phone has more issues than I thought and they are real issues this isnt just lag were complaining about or that thephone isnt quick enough or something dumb these are real problems. while on my vacation I had to deal with random camera failures..my gf with tons of reboots and camera fails.. These are issues that now make you go out of your way for the phone instead of the phone making itself go out of the way for yourself. It's honestly unacceptable.. So I want to know how many people with the T Mobile version: have experienced any of this. Take off the battery of the phone and just press around the plastic frame and see if you hear any pops like mine did.. Or has anybody had continuous camera failure whether resolved or not has it happened.. Random reboots to? I am aware that a new kernel or rom could fix this problem but my girlfriend lives in New York and she doesn't have the time to do this or knowledge and really shouldn't have to. So it's been at least four of these devices that have had issues from purple tint to loose frame to reboot to camera failure...really disappointing. Will T-Mobile send me a new one even out of buyers remorse?? I love this phone and so does my girl but we like using our cameras everyday and can't deal with these other apparent issues...what to do?
O forgot to mention that the phone flickers the screen while hit by Sunlight.. While keyboard is up and in white backgrounds as well as using the camera.. Screen looks like its blinking really fast..I know this issue is in ALL s4s but thought I'd throw it in to another set of problems... This one I can deal with though..reboots and camera failure?? Can't deal with that
These issues I've experienced personally and I'm speaking of my experiences only I don't make up stuff or use other members issues to add to mine. Those issues are present for me and my girl and we have now exchanged our phones twice.. We would be getting our 3rd s4 if we exchange again.
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Insurance??
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I don't have any.. But either way I shouldn't have to use insurance for this is how it is out of the box.. No root no mods just purely stock..
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I was going to say return it and get a new one I think you just have a defective device I had one I returned new one is perfect.
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xxjrsmith3xx said:
I was going to say return it and get a new one I think you just have a defective device I had one I returned new one is perfect.
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Yeah t Mobile is going to send me a new one now my third s4
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But this has happened on all of my devices so I'm starting to think that it's an issue with everyone because I didn't get any of these problems till about 3 weeks into having the phone and I haven't dropped it or anything not even flashing rooting
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