I just bought my Epic 4g recently (May 2011). I bought it to avoid some of the problems I had with my Samsung Moment (3G), and I am discovering that some of these problems still exist!
1) RANDOMLY WON'T DISPLAY KEYPAD IF WIFI or 4G TURNED ON (ie: CAN'T MAKE CALLS):
I agree with the poster above that the Epic 4g is too dumb to know which mode to use (3g, 4g, wifi) -- so sometimes if I have my phone's wifi or 4g turned on for long periods of time (ie: overnight), the phone will RANDOMLY force itself to display horizontally/landscape on the screen (if you can't rotate the screen), AND it will NOT display the keypad/dialpad! What this means is that you cannot make any calls!!!!!!! The quick solution I found to this is to just manually switch off whatever mode you have turned on (ie: if you have WiFi turned on, turn it off, and all of a sudden your dialpad comes back). Very annoying.
2) RANDOMLY TURNS ON AIRPLANE MODE (ie: WON'T RECEIVE CALLS OR TEXTS):
This problem I am REALLY pissed about. My old Samsung Moment had a known issue, where the phone would go into airplane mode if you left it on overnight or for a long period of time. Sprint/Samsung knew about the problem and claimed that they would fix it, but instead they just ran the clock out on the phone. I am horrified that they have repeated this problem in the Epic 4G too! The solution to this problem is to turn your WiFi, Bluetooth, etc OFF. But I wouldn't have bought the phone if I couldn't use its features! How is this not fixed. Airplane mode makes it so that you don't receive calls or texts, AND you won't even know that you're missing the calls. They simply don't come in at all.
I have been a Sprint customer for over a decade, and have bought the last few new Samsung phones (ie: Moment, Instint, Epic, etc). If this doesn't get fixed, this may be my last Sprint and/or Samsung phone.
Making a post to subscribe. Will be reading through these 5 pages to see if there is anything to learn/discover.
I have a problem mostly when I'm on the Internet. I can be x number of pages in and the phone will do the little vibrate like it does when a botton on the bottom is pushed, ONLY I DON'T HIT ANY BUTTONS and the phone starts going back to previous pages, sometimes once, and sometimes all the way out to the home screen. This can be REALLY frustrating when composing and email and it backs me out past where I even signed into my email account.
I also have issues with speakers/bluetooth. Anytime I turn on the bluetooth all the sounds are muted, ringer etc. after I turn it off, until I reboot the devise. Also after the bluetooth is turned off the phone will make a pop sound at intervals until rebooted.
im having a major issue with my epic. my phone completely freezes and black lines slowly appear until the whole screen turns black. originally it seemed to only happen when i play games, but it just happened during my lock screen. the only way to get it working again is to remove my batt. ive only had this phone for 2 mo and it has happened 3 times, 2 in the last week.
ME TOO! Bluetooth connection to my UCONNECT is spotty at best and I am lucky if I get a ring sound if someone calls me which is completely unexceptible as I am a dog groomer and rescuer and can not afford to miss calls! I also experience times when the phone will lock up, vibrate and make popping sounds. I bought my phone at Best Buy and have taken it back so many times I cant even count and was told it was on my side and then when I was 5 days away from my 30 day return guarentee...they figured out that a fix was upcoming in a month and they hadnt heard of the popping sounds OR the bluetooth issues and said it was my new Dodge Nitro's issue and didnt have an Epic in stock to replace mine before I was leaving town....not I can not get my emails and or it loads a bunch that I have already viewed...went to this phone because they said it would sync with hotmail....it DOESNT! I have more headaches than happiness with this phone and now i am stuck. Been with Spint for 15 years and they have been the only company that has had service where i live and now for 200 a month for 2 phones and all these headaches...i may be done