On my 4th year of using this phone model, my greatest problem I've facing is that everytime I click the power off, it's always restarting so i always unpack the battery :(
I've been using this phone for more than 4 years.
For the people facing hanging problems, it is because of Google Play Services. If you have higher version than 9.0.4 of GPSer. you might face problem.
I too face the same problem when my play services are updated. Although having 9.0.4 version causes unable to use play store.
worst phone frequently hanging and battery life also very very very very poor.
i bought ace duos on jan 7 2013,i have paid 11,500 (including tax)first year the phone was nice,internet n playing games was nice,after 1 n half year the phone become very slow,it was hanging,i became wexed to download games,i am using that phone till now,why becoz it was my first phone,i still dont want to buy another bcoz i like tat phone but its slow n hanging but i adjust i feel bad to throw tat out n buy another phone,i dropped my duos in water but its still working,i wish i can upgrade into faster version so tat i can use..at 2013 it was best ,now ace duos is out of date.but some phone repaires say ace duos is good phone present day samsung is not tat much gud.3 n half years im using this phone but i cannot throw it n buy,its so special for me.
Stupid telephone. Very, very slow. Batery: 6 hours (10-15 min talk) and many other things. Don't buy.
I used Samsung Galaxy Ace Duos S6802 from 2013 and I change it now just because I have broken the display.
At the specification it came with, it was very good as a telephone or an amateur camera, not as a playstation or something else dedicated to games.
The only weakness appears to be the power connector.
And, of course, we have to retain: What was good in 2012, when this model appeared, is not the same in 2016.