Wifi abnormal behavior - Galaxy S 4 Q&A, Help & Troubleshooting

I don't know why my wifi was malfuntioning. Last night i've installed Real Racing 3 after that, the game need to download the data which is 1Gb+. Downloading that size is way too long to wait so i've decided to sleep. Before i go to sleep, I've put the charger because my battery was only 20% and i know downloading that size could empty my battery i dont want that to happen. I turn my backlight in the lowest settings because the downloading screen on the game was not turning the light off and the last was i've activated the power saving mode.
Today, when i woke up, a glimpse on my S4 to check if my download was done, there's pop-up saying connection error, and the download was on 81%, i quickly pick-up the phone to check whats wrong and WTF!!! My S4 screen was very HOT. I cannot believe its still alive on that temp that can almost melt my plastic protector casing. It's reaaly hot just like a flat iron. What i did was pull out that plastic protector. The phone itself was much hotter than the protector cover. I quickly pull the back cover, pull the battery and put everything infront of electric fan. After a few minutes everything were in cool temp. I put the battery back and the back cover, turned it on, then after the start-up completed i've pulled the status bar because i want to continue the downloading. Then my problem comes... The color of WIFI icon was NOT green(ON) and not even grey(OFF) its slight darker green, its in the state of turning to green(ON). I've tap and hold it to open the wifi menu and then, i've noticed that it's really turning to ON.... But it never turned on. I've turn it off and on nothing's changed. After a few forum reading, i manage to turn my wifi on by deleting the root/data/misc/wifi/wpa_suplicant.conf. Because someone saying that the wifi driver cannot read it and have to delete to force the system to make another one and its true. Ofcourse, i did a backup. But my wifi cannot remember my passkey after i turned it off.
Please help me... Did i damage some hardware? I really love my s4.

Anyone can help me here pls..

Related

My Magician always shut off below 35% Battery

Anyone could help me how to solve this matter?
I just put on the table n using music for a few hours until the battery indicator below 35%, n suddenly it turn off by itself, whether I restart it again, til the Today Screen, going turned off again.
For delineation, I will give little explanation what I've done:
* I have read the post in others, like "lock" the little switch sensor behind the battery cover... I have done this, even with no battery cover attached, my magician could turn on.
Thanks....
chikarakoon said:
Anyone could help me how to solve this matter?
I just put on the table n using music for a few hours until the battery indicator below 35%, n suddenly it turn off by itself, whether I restart it again, til the Today Screen, going turned off again.
For delineation, I will give little explanation what I've done:
* I have read the post in others, like "lock" the little switch sensor behind the battery cover... I have done this, even with no battery cover attached, my magician could turn on.
Thanks....
Click to expand...
Click to collapse
ur battery's life is about to end!! so the best possible solution is to replace a new one.
so sad...
but thanks...

[Q] Phone gets super hot, screen wont turn on, need to battey pull

Ok. This is extremely wierd.
So unplug my phone off the charger in the morning use it a bit. 1hr later I feel it burning a hole in my pocket. Its extremely hot, I take it out and try turning it on but the screen wont turn on. Battery pull and its fine.
Go to battery history and the battery life vertical dropped 15% in that time.
Happens 1 to 2 times a day. Any idea whats wrong?
Thanks

Screen Stays Awake

Hi,
The screen on my Nexus 4 has started to stay awake. I've noticed my battery drain a lot quicker over the last couple of days and I also noticed that every time I pulled my phone out the screen was lit so I've taken it out and watched it. It just stays awake all the time. If I turn the screen off the minute a message or anything comes in the screen wakes and stays awake so near impossible to keep it off for any length of time.
I do have the developer screen enabled and had stay awake whilst charging option enabled. I disabled that to make sure that this wasn't causing the screen to stay awake thinking it was somehow on the charger when it wasn't however the problem persists even with that option unchecked.
I have the screen timeout in display set to 30 secs.
Anybody else experiencing this or no how to solve?
The phone is stock and unrooted though I plan on rooting later today.
ktz84 said:
Hi,
The screen on my Nexus 4 has started to stay awake. I've noticed my battery drain a lot quicker over the last couple of days and I also noticed that every time I pulled my phone out the screen was lit so I've taken it out and watched it. It just stays awake all the time. If I turn the screen off the minute a message or anything comes in the screen wakes and stays awake so near impossible to keep it off for any length of time.
I do have the developer screen enabled and had stay awake whilst charging option enabled. I disabled that to make sure that this wasn't causing the screen to stay awake thinking it was somehow on the charger when it wasn't however the problem persists even with that option unchecked.
I have the screen timeout in display set to 30 secs.
Anybody else experiencing this or no how to solve?
The phone is stock and unrooted though I plan on rooting later today.
Click to expand...
Click to collapse
Does it stay awake but go very dim? I have this issue too.
can it be caused by the screen protector blocking the light sensor somehow?
Can you install BBS (BetterBatteryStats) and see what's keeping your phone awake?
Sounds like a FULL_WAKE_LOCK is constantly being imposed on your phone.
Questions
Is it only when you put it for 30s?
What's around your pocket when you put your phone in it?
Do you have any attachments onto your phone? e.g. skin protectors, cases...etc
Does this occur on any screen or just your home screen and the developer options screen?
Though some questions may be obvious, the best method is to be thorough with the situation. Answering these questions will help us better help you.
My phone shut itself down about an hour ago (plenty of battery left as I had to charge it earlier and was at 50% when it did come back on). It took several minutes before it would respond to getting turned back on again. I've got 2 messages since and the screen is now tuning off as it should. I had turned the phone off a few times to see if it rectified yesterday however that didn't work.
The problems wasn't anything to do with me having it in my pocket as the problem still existed when I had it sitting on my desk. I have no screen protectors or case and I never put it in any pocket that has anything else in it as I don't want to ruin too quickly.
So not sure what's going. All seems very odd. Hopefully not a sign that the phone is on the way out but looks ok for now. Will have to watch and see what happens over the next few days.
Thanks to all who took the time to respond. Hopefully I won't need to bother you again on this issue but not convinced just yet

Screen stays on after battery gets fully charged

Got a weird problem with my AT&T stock non-rooted S4. About 4 or 5 times since I got it on release day when I charge my phone and I get the notification that it's fully charged the screen won't turn back off. I use a Belkin Conserve socket that is set to shut off after 3 hours and I've woken up after charging to find the phone dead. I've managed to catch this happen once and when the fully charged notification comes on the screen won't go to sleep, it just stays on and flickers a little bit. For all but one of these instances I had blocking mode on so I'm not disturbed by email or text notifications in the middle of the night. It did happen one time when I didn't have blocking mode on. I use a pin lock for my lockscreen and usually have BeyondPod playing overnight (only one hour long podcast while it's still charging) if that makes a difference. Is the function that enables the screen to stay on when you're looking at it malfunctioning? Any help? I've attached two screenshots of battery life when this happens.
Tryptonite said:
Got a weird problem with my AT&T stock non-rooted S4. About 4 or 5 times since I got it on release day when I charge my phone and I get the notification that it's fully charged the screen won't turn back off. I use a Belkin Conserve socket that is set to shut off after 3 hours and I've woken up after charging to find the phone dead. I've managed to catch this happen once and when the fully charged notification comes on the screen won't go to sleep, it just stays on and flickers a little bit. For all but one of these instances I had blocking mode on so I'm not disturbed by email or text notifications in the middle of the night. It did happen one time when I didn't have blocking mode on. I use a pin lock for my lockscreen and usually have BeyondPod playing overnight (only one hour long podcast while it's still charging) if that makes a difference. Is the function that enables the screen to stay on when you're looking at it malfunctioning? Any help? I've attached two screenshots of battery life when this happens.
Click to expand...
Click to collapse
So in settings under the Developer Options, there is a setting "Stay awake" if checked screen will never sleep while charging. Now I see that your Belkin shuts off the power but your phones still detects the usb plugged into a power source.
I think things happen in this order: you hookup your phone to charge and shut off your screen, phone charges to 100% and screen lights up saying fully charged, it stays on because of that setting, Belkin kills the power, it is still hooked up to USB so ... you get the rest.
I would find that setting and disable it.
if your next question is "I don't see developers option" it is hidden by default in android 4.2.2 so to make it available, go to Settings > About phone and tap tap tap Build number seven times. Return to the previous screen to find Developer options. Or Indiana Jones might pop up and give you the cup to get eternal life !!!
Thanks for the reply Commodore64 but I already checked that setting when it happened the first time and it's not checked.
No one else has had this problem?
Tryptonite said:
No one else has had this problem?
Click to expand...
Click to collapse
I have this problem as well as my wife's S4. around 3am, I notice our room is bright with our two phones' screens on. It will stay on until the morning.
In the developer's section of the settings, the stay on when plugged in is NOT checked.
Also, on our phones, we notice the phones overheating because the screen is on for hours at a time at night.
I've just spent an hour looking through the internet, and while many report this, they are simply being dismissed by others as in having "checked" the setting in developer section.
Also, when the batttery does get fully charged, the "Battery if full, unplug the power" notification also rings the default notification ringtone. I've installed phoneweaver to set my phone to no sound overnight, but it only stops the sound, the screen still stays on and phone gets really hot.
This is turning out to be a huge problem for us.
pyrophilus said:
I have this problem as well as my wife's S4. around 3am, I notice our room is bright with our two phones' screens on. It will stay on until the morning.
In the developer's section of the settings, the stay on when plugged in is NOT checked.
Also, on our phones, we notice the phones overheating because the screen is on for hours at a time at night.
I've just spent an hour looking through the internet, and while many report this, they are simply being dismissed by others as in having "checked" the setting in developer section.
Also, when the batttery does get fully charged, the "Battery if full, unplug the power" notification also rings the default notification ringtone. I've installed phoneweaver to set my phone to no sound overnight, but it only stops the sound, the screen still stays on and phone gets really hot.
This is turning out to be a huge problem for us.
Click to expand...
Click to collapse
Do you use a PIN (number) lock? I did but switched to the pattern unlock and it hasn't happened since. Also, I've been trying to charge only during the day or evening, not overnight. Maybe, since I charge during the day and I use it periodically while it charges it doesn't go into a "deep sleep" like it would if it charges while sleeping and the full charge notification would keep it awake. I don't know exactly why but it hasn't happened since. Hope this helps.
Power Button Not Working SGS4 Not Sleeping SOLVED
For whatever it's worth, see http://forum.xda-developers.com/showthread.php?p=48871706#post48871706 - maybe that will be helpful.

[Q] Hardware Buttons Light

First I would like to say I can't remember how the keys are called, all I know they are the menu and back keys, and that they should light up for a second and turn off until used again.
I'm having couple of problems with my phone being awake all times, battery drain and mostly overheating.
Some hours ago, my phone was reaching battery temperature of about 42ÂșC while screen off and apparently "nothing" abnormal running in background. After restarting the device, first thing coming to mind was to put it in the fridge for a couple of minutes to let it cool down.
The problem is, 2 minutes turned out to be some hours. When I removed it from the fridge, I noticed the hardware keys weren't lighting up. Restarted, still nothing. They work, but won't light.
What could it be? Maybe the low temperature did something to it? Or was it condensed water from the fridge? What can I do to make them go back fully functional again?
Issue solved, the overheating made it go back working once more.
Maybe try putting your phone in a bag of rice for 24 hrs to draw the moisture out
Sent from my Gt-i9505

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