This might be due to variety of reasons but i m giving u the benefit of doubt that u r not installing applications without checking their compatibility...... so just before installing them just check the devices with which they are compatible or just check that they work with 3rd edition Series 40 devices....
go to gallery, zedge or mosh and get wat u want......... but since ur phone does have java MIDP 2.0 and Flash Lite 2.1.1 most will work but checking is still imp
or also check for ur firmware update and this shall do the trick along with reformatting ur device but do make a backuo
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This might be due to variety of reasons but i m giving u the benefit of doubt that u r not installing applications without checking their compatibility...... so just before installing them just check the devices with which they are compatible or just check that they work with 3rd edition Series 40 devices....
go to gallery, zedge or mosh and get wat u want......... but since ur phone does have java MIDP 2.0 and Flash Lite 2.1.1 most will work but checking is still imp
or also check for ur firmware update and this shall do the trick along with reformatting ur device but do make a backuo