Develop Bugs

List of known issues - unconfirmed

I decided to wait until the 2nd or 3rd batch to avoid some mishaps and slowdowns...Also to wait till we get some devs over here and possible root by than. We all know the hiccups that come with the first batch of phones(Especially coming from the G2X lol) But all in all what have you been experiencing problem wise....Please Share
Thanks.
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charlieb620 said:
I decided to wait until the 2nd or 3rd batch to avoid some mishaps and slowdowns...Also to wait till we get some devs over here and possible root by than. We all know the hiccups that come with the first batch of phones(Especially coming from the G2X lol) But all in all what have you been experiencing problem wise....Please Share
Thanks.
**Sidenote**
I still have my Sensation till than that I plan on ditching, and I'm using a Amaze for now.
Sent from my HTC_Amaze_4G using XDA Premium App
Click to expand...
Click to collapse
Honestly I have no serious issues with this phone. The very little I have is checkerboarding in the browser (although the browser is fast and smooth as hell), home button seems to be the only button on the phone that lags (this is definitely a software issue) and screen resolution isn't as sharp as I am used to coming from the Sensation.
The pros on the GS2 definitely outweigh the cons so I'm happy with my purchase. Coming from the Sensation I was faced with wifi/data signal issues, overheating, lag (mainly on stock software), and a few random reboots and so far I have neither issues with the GS2. I recommend this phone to all!
Sent from my SGH-T989 using xda premium

OuncE718 said:
Honestly I have no serious issues with this phone. The very little I have is checkerboarding in the browser (although the browser is fast and smooth as hell), home button seems to be the only button on the phone that lags (this is definitely a software issue) and screen resolution isn't as sharp as I am used to coming from the Sensation.
The pros on the GS2 definitely outweigh the cons so I'm happy with my purchase. Coming from the Sensation I was faced with wifi/data signal issues, overheating, lag (mainly on stock software), and a few random reboots and so far I have neither issues with the GS2. I recommend this phone to all!
Sent from my SGH-T989 using xda premium
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Click to collapse
Those are my only issues too. I can't really say they are issues because the browser checkerboarding was known before purchasing. They all do it. The home button taking a little bit to react has to be from the double tap on the home button option. This can be fixed and i'm hoping it will be on an update.

Im experiencing that its not a sensation..... You're wasting time waiting for a new batch. The phones flawless unless it has a brushed metal screen.
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The only con I am experiencing is I seem to have trouble charging this thing with anything other than the included AC adapter. I cannot charge this phone while it is connected to a computer with the screen on and streaming music.
I think the radio in this phone is a bit weak as well, I have trouble getting reliable service while inside large buildings.
Otherwise it is an excellent phone. My 4g speeds are 14900 Mbps, I've had a 3700 Quadrant, and battery life is exceptional. I went to sleep at 0300 with a charge of 80 and woke up at 1000 with a charge of 71. Compared to MotoBlur, Touchwiz seems to be a lot easier on the battery while idle.
Sent from my SGH-T989 using XDA App

Phone has been amazing since day 1 none of the problems people seem to have here
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I picked up mine today from tmobile, i gotta say, i LOVE it. Its giving me no problems whatsoever
Sent from my SGH-T989 using Tapatalk

brian6685 said:
I picked up mine today from tmobile, i gotta say, i LOVE it. Its giving me no problems whatsoever
Sent from my SGH-T989 using Tapatalk
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Click to collapse
Definitely agree with it. I came from the Sensation and it would overheat. This phone barely gets hot even while charging! Maybe that's why Samsung phones charge so slow. It pushes out less power and since it pushes out less power the phone will most likely not overheat do to this.
Sent from my SGH-T989 using xda premium

The "brushed metal" screen thing has been only problem I've had. I exchanged it for one that looks pretty normal & I'm honestly not having any other problems. This phone is unbelievable & everything I've ever wanted in a phone. Great signal(I get signal at my work now, which I didn't before), great sound, great battery life, great colors, doesn't overheat, and the bluetooth range is excellent. I can literally walk across my house without it disconnecting, which is a breath of fresh air coming from a Sensation that I couldn't get more than 5 feet from :3

Agree. Hardware wise there isn't much if at all that needs to be fixed. Everything is nice and solid...great finish.
It's blazing fast..doesn't overheat and does everything well. Reminds me a lot of a Mac...It turns on, turns off and does what it's suppose to well. Reliable.
The phones amazing and I recommend it to EVERYONE.
The_Biz said:
Im experiencing that its not a sensation..... You're wasting time waiting for a new batch. The phones flawless unless it has a brushed metal screen.
Sent from my SGH-T989 using xda premium
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Click to collapse

I exchanged mine yesterday because it had the textured screen flaw. It was made on 9/27, got a new one made on 9/28. Looking great now, still messing around with it, a functional GPS is my biggest worry. I'll be testing that today when on the road.
Only down side I see is the occasional lag with TouchWiz. Coming in and out of applications, you notice a few slow spots here and there. Nothing I really care about. Coming from the G2X, this phone is a dream.

my phone works great the only issue i have is the phone acts strange when i try to use it and its charging...weird

kennyp987 said:
my phone works great the only issue i have is the phone acts strange when i try to use it and its charging...weird
Click to expand...
Click to collapse
Try a different charger. I've had this problem on several phones, it has to do with the charger outputting the wrong voltage or something. My phone does this too with the old Sensation charger that I use at work but it doesn't do it with my home charger.

bighulk666 said:
a functional GPS is my biggest worry. I'll be testing that today when on the road.
Click to expand...
Click to collapse
You're in for a treat. This things lock very fast and I used it today just to try it out.

kabuk1 said:
Try a different charger. I've had this problem on several phones, it has to do with the charger outputting the wrong voltage or something. My phone does this too with the old Sensation charger that I use at work but it doesn't do it with my home charger.
Click to expand...
Click to collapse
i am using the included charger ;/

kennyp987 said:
i am using the included charger ;/
Click to expand...
Click to collapse
Try a different one anyway, I've had included chargers cause this problem with the phones they came with.
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One more slight problem that I've noticed- occasionally Doggcatcher & certain music players will give me errors about not being able to access the sd card. Its like it unmounts itself randomly or something. PlayerPro is the only one so far that hasn't done this.

kabuk1 said:
Try a different one anyway, I've had included chargers cause this problem with the phones they came with.
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One more slight problem that I've noticed- occasionally Doggcatcher & certain music players will give me errors about not being able to access the sd card. Its like it unmounts itself randomly or something. PlayerPro is the only one so far that hasn't done this.
Click to expand...
Click to collapse
What kind of memory card is it?
Sent from my SGH-T989 using xda premium

Bluetooth headphones (of any kind) wont work. just rapidly skips through the tracks without playing them, or it tells me that the format is incorrect (its not) wired headphones work fine...

prnkmonkie said:
Bluetooth headphones (of any kind) wont work. just rapidly skips through the tracks without playing them, or it tells me that the format is incorrect (its not) wired headphones work fine...
Click to expand...
Click to collapse
My motorola bt stereo headset works just fine... As a suggestion maybe try deleting the pairing and pairing again?
Sent from my SGH-T989 using Tapatalk

I don't have a lock screen anymore for some reason weird, and if I hold the power button I don't get that pop up that gives me the option to put it into fight mode and blah. It just shuts off
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Problems with touch screen when screen is locked and phone is charging...

Since I thought my phone, I've noticed an annoying problem. When my phone is charging in the screen is locked, I go to unlock the phone and the touch screen seems to have a problem registering my touch for the pattern password.
I would unplug it for a second to draw the unlock pattern, unlock the phone, and then proceed about while the phone is plugged back in. Then out of nowhere, it'll do the same thing.
Anyone experiencing this?
Sent from my SGH-T989 using XDA App

m3trella97 said:
Since I thought my phone, I've noticed an annoying problem. When my phone is charging in the screen is locked, I go to unlock the phone and the touch screen seems to have a problem registering my touch for the pattern password.
I would unplug it for a second to draw the unlock pattern, unlock the phone, and then proceed about while the phone is plugged back in. Then out of nowhere, it'll do the same thing.
Anyone experiencing this?
Sent from my SGH-T989 using XDA App
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Click to collapse
There is another thread here somewhere that talks about the issues while being plugged in. I think this was one that was mentioned.
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i am not getting that problem, but if you call tmobile im sure they will switch the phone.

I've had this problem - but only when I used a different charger from the one included (even though it's a Samsung charger). Are you using the cable included with the phone?

Yea it has happened on mine but only if it was laying down when i try to unlock it. once i pick it up it was fine
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I can confirm this very issue on two GSII's I've used. It's annoying.
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This is a known issue with all variants of the Galaxy S2.
The Galaxy S2 is very sensitive to input voltage, and if it doesn't like what it's getting, the touch screen calibration gets a little funky.
Voltage-regulated chargers (ones that are big and blocky or have a bulb on the wire) tend to work well.
Don't bother exchanging it over this, it won't change anything. You just need a better charger.

Yes, I'm using the same charger came with the phone. I guess we will just settle this issue with the fact that it just gets a little funky When plugged in.
Sent from my SGH-T989 using XDA App

Big thanks to everyone who responded to this thread, hopefully we can figure out what the problem is in the near future
Sent from my SGH-T989 using XDA App

manekineko said:
This is a known issue with all variants of the Galaxy S2.
The Galaxy S2 is very sensitive to input voltage, and if it doesn't like what it's getting, the touch screen calibration gets a little funky.
Voltage-regulated chargers (ones that are big and blocky or have a bulb on the wire) tend to work well.
Don't bother exchanging it over this, it won't change anything. You just need a better charger.
Click to expand...
Click to collapse
better charger yes
phone being sensitive not really
all Properly build chargers will not cause that problem
i purchase cheap 2A charger from Deal Extreme, but those are build good, not like some of the crappo accessories from ebay
BlackBerry chargers works good too

I have the same problem.
As many of you guys said, a good charger is needed for a stable voltage input.
I have no problems charging from the original charger and my desktop computer.
However the problem shows when I am using my laptop (7 year old) usb.
So a good charger is recommended.

I can confirm this issue, but what i want to know is, why does this happen when the phone is lying flat on a surface while charging and goes away the moment you pick it up? If it was a faulty or imprecise charger issue then the problem should persist?
My guess is it has to do with the EM shielding around the charging module, and that it doesnt do enough to shield the totally normal residual interference from interfering with the touch screen digitizer. When we pick it up, our hand acts as an interference dampener and minimizes the issue while it is charging, to almost negligible amounts. But its just a guess. The chargers might also be generating greater than average interference as well. But just charger alone cannot explain why pickibg up minimizes the problem.

The charger doesn't cause any erratic behavior on my Galaxy Nexus like it does on this phone... So what is the explanation behind that?
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manekineko said:
This is a known issue with all variants of the Galaxy S2.
The Galaxy S2 is very sensitive to input voltage, and if it doesn't like what it's getting, the touch screen calibration gets a little funky.
Voltage-regulated chargers (ones that are big and blocky or have a bulb on the wire) tend to work well.
Don't bother exchanging it over this, it won't change anything. You just need a better charger.
Click to expand...
Click to collapse
Use the charger that came with the phone
Sent from my Hercules using XDA App

What's unfortunate is that the Samsung charger that came with the device causes the touchscreen issues.
Fortunately, I have an HTC charger lying around that works, no problems.

I have seen this happen with the HD2, Evo 4g, galaxy s4g & Sensation. Its a problem with chargers and the voltage. It happens with those chargers from walmart. Its not just the GS2 phones.
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Add the Tmo HD7 to the list.... it happens all touchphones on which i believe has grounds surrounding the phone, touching the touch screen stabilizer or whatever you'd like to call it. It's the ground of the charger, nothing to do with charger instability. Take your laptop's charger, plug it into a wall with no 3rd ground (a laptop that has the 3rd prong) and take that same plug, and plug it into a plug with 3 prongs, you'll notice it has that static-like feeling that makes ur fingers tingle (when you touch a metal part of your laptop). It's the same issue with our phones
I hope this helps someone

Just change charger i have noticed that since i work in a cellphone company .... but i change to a different charger and it stopped doing that....

I used another charger but the problem still exist

Touch.Screen unresponsive while charged?

What's this about? Is there a fix for this? evertime I plug my epic into the charger the touch screen acts weird..pressing random buttons and not responding to touches. Tried flashing multiple roms and it happens on all of em...any help would me greatly appreciated.
Currently using Thunder Hawk 3.1
Stank you smelly much!
Sent from my SPH-D700 using XDA App

There is probably a short in your usb cable. It can cause erratic behavior in our screens, unresponsive or it just reacting whichever way it wants to. It'd be best to look into another cable, it seems to be the only constant thing in all cases you've experienced it.
Sent from my Epic 4G

I made this same exact thread but no one would answer meeee I'm having the same exact problem
Imthinking it might be from the charger/usb tho.. cuz I have 3 and 2 of them give me this problem and 1 works perfectly so I think it is the cable too
Sent from my SPH-D700 using XDA App

could this be rom related?

ive been running calks roms ever since he released them for our phones and i have never had an issue... that being said, i flashed his latest 2.0.1a and was working fine up until yesterday... it seems that my menu button presses randomly for no aparent reason! i cleaned the screen to remove any smudges it may have and that doesnt help... do you guys think its the phone!? like i said the roms have been working fine! i even flashed it again just to check and no go...

Sounds like a problem with your phone unfortunately
Sent from my SPH-D710 using xda premium

also - search Calk's ROM thread for anyone else that might have the issue, a fix or replace suggestion.

Yep sounds like hardware, did it continue after a reboot? Sometimes a system reboot complete with a battery pull can fix little glitches like this.
Sent from my SPH-D710 using Tapatalk

Pull the battery a leave it for a few minutes, then put it back in and see if your problem goes away. It does sound like a hardware thing.

check out my post here
http://forum.xda-developers.com/showthread.php?t=1389972
I've been getting the same thing and managed to catch my phone misbehaving on camera.
I am sure it's hardware as when the problem started for me i was on a stock room that I simply rooted. Thinking it may be something with the rom (like you) I flashed a whole new rom with a whole new kernel (blazer rom with the ek02). the problem persisted and thats the setup I was running when I shot the vid. yesterday I flashed the stock EL13 rom and kernel. same problem.
Let's compare notes and see if we can narrow down the list of causes.
1) it's not rom related.. but MAY be root related. thoughts?
2) I recently damaged my stock charging cable and started using a cable (samsung brand still) that I picked up from amazon... could that be the issue?
3) on the FIRST DAY when I bought my phone, i noticed that the screen goes haywire if I try to use it while its charging. this only happens on the stock charger. I was told by members of the board here that this was normal and dismissed it. could this actually mean that our phones were defective to begin with?
Lets here your thoughts.
btw. I'm having my device replaced on friday. if you have the equipment protection plan then it's free of charge.

As ironic as it is, i posted on this thread just to try and help and be it as it may my phone is now doing this now... its done it about 3 times and its annoying lol
Edit:I'm on blazer 2.0 with desperado and el13... but it did it on ek02 too so its not the modem
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so far I'm thinking it's something to do with bluetooth, the headphone jack or third party cables.
anyone else using headphone or a tape adapter at the time this started for them? what about simultaneously while listening to bluetooth?

btate0121 said:
so far I'm thinking it's something to do with bluetooth, the headphone jack or third party cables.
anyone else using headphone or a tape adapter at the time this started for them? what about simultaneously while listening to bluetooth?
Click to expand...
Click to collapse
I don't use any of those....
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so is yours completely random or does it seem to happen only under certain conditions?

Got my new device last night. One difference ive noticed is that this one actually charges fully (battery shows 100%) even off of the charger. My previous device dropped to 99% as soon as i unplugged it.
The screen calibration still goes haywire if used while its charging.
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It seems to be completely random... although I'm sure its not...
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Although i never had the problem on the stock from and kernel
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is this rom related
I am using calks 2.5 with rogue kernel. my phone seems to have little lines moving up and down the screen. I just got this phone after turning in my other one because of hardware problems. just wondering if anyone else is experiencing this as well.

Screen doesn't respond to the touch

Well, it seem every phone I use in last 6 month getting this disease when you swipe or touch on screen and nothing happens, or when you press one key on keyboard and it inputs completely different character from opposite side of the screen...
Just now I had the same exact crap going on on Nitro!
I pressed and hold on back button on the gb keyboard and it was acting like I'm pressing random keys at 50 keys per second!
But before that I had trouble unlock the phone, since the slide off motion didn't register at all, the slider would move a few pixels and go back.
The weird fact is the most noticeable this occur when phone is plugged in and charging, unplug it and problem usually goes away or at least become manageable.
What the hell I'm doing to these phones that causing this? Actually this is the first phone where I f.k with the system files, all others I either used CWM or market, nothing else.

I have not had any touch screen issues with this phone other than its just a hair less sensitive compared to my captivate.

[email protected], are you a ghost? I have heard that sometimes phones will act strangely during use if you are a ghost. Something to do with spiritual electromagnitism. This would also explain why you are having compass issues!
Okay, so back to being serious. I've had the EXACT same issues you speak of when my phones (yes, this has happened to other phones too) were connected to 'dirty' power.
What I mean by 'dirty' is either a power supply that was very low quality or using a USB cable that the phone didn't like. Just recently my Nitro was acting erratically while I have it plugged into my computer. It shouldn't have been a problem because I was using a high quality, well shielded Blackberry branded cable (worked perfectly fine with my Nexus One), but as soon as I used the usb cable that came with the Nitro then everything worked correctly again.
Hope this helps!

i had that promblem today ... but nothing i did fixed it so i was able to pull the battery and do a dreded hard reset and its working as good as gold now

tokie_ said:
i had that promblem today ... but nothing i did fixed it so i was able to pull the battery and do a dreded hard reset and its working as good as gold now
Click to expand...
Click to collapse
Just got the same problem. Tried everything listed here to fix it. No luck.
Any other suggestions ?

I've found what Namuna said to be true. Also, I experienced this issue with my phone plugged into the power strip on the nightstand. Apparently there is a grounding issue in that power strip.
Sent from my LG-P930 Full Android on Emulator using xda app-developers app

AllstarE4 said:
I've found what Namuna said to be true. Also, I experienced this issue with my phone plugged into the power strip on the nightstand. Apparently there is a grounding issue in that power strip.
Sent from my LG-P930 Full Android on Emulator using xda app-developers app
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Click to collapse
Could be it. I use a power bar also. Plus I think I'm using a cable from a galaxy nexus now that I think about it.
Maybe I'll try to find an official lg cable.
Thanks again.
Sent from my LG-E973 using xda app-developers app

khanfed said:
Could be it. I use a power bar also. Plus I think I'm using a cable from a galaxy nexus now that I think about it.
Maybe I'll try to find an official lg cable.
Thanks again.
Sent from my LG-E973 using xda app-developers app
Click to expand...
Click to collapse
I haven't had a complete loss of touch responsiveness, but I have experienced the erratic behavior; but only when plugged in and only while charging in AC mode. I've noticed this a lot more since I dropped my phone with the charging cable attached... I can be in USB mode and the slightest touch will knock it off charge yet I have no touchscreen problems. Once, every now and then, I am lucky enough to get into fast charging AC mode; which is much more stable as far as touching and using while charging... but the screen is almost unusable due to the erratic touches. I turned on "show touches" in developer options and while in AC mode, it shows multiple touches in a horizontal line relative to where my finger is. It even affects my soft keys.
Happens with every charger I've tried; my original charger, both HTC chargers I have, and a charger I found a few weeks ago. I've experienced the problem in my house, multiple hotels, and a few other places; both with and without a power bar. Pretty much, what I'm saying, I'm sure I've been connected to a good grounded source of power, yet I still experienced those problems.
Out of curiosity... have any of you either replaced or had your digitizer replaced? I've replaced mine twice, and my problems began shortly after cracking the screen the 2nd time.

Well i tried the charger that came with my optimus g (using a power bar ) and it seems to work fine now.
One more thing i did was try it without my memory card for a bit. I don't know if that had anything to do with it also.
Anyways so far so good.
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