G'day. I have an iPhone 4 and would like to know the following:
1) Is 3G or WiFi necessary to receive and send texts? I find sometimes I don't received or get failed sent message notifications when these are not engaged.
2) Does it use significantly more battery to have 3G or WiFi engaged all the time? Does the phone automatically switch to WiFi when it becomes available, therefore not using the data plan (3G)?
3) Do iPhone batteries have a 'memory'? Do I need to run the battery down to the Red-line to maintain battery 'fullness'? I have been told with my MBP to plug it in whenever possible during use, but run it down about once a month to 'excercise' the battery. But batteries only have a certain number of charges.
Thanks
1) Is 3G or WiFi necessary to receive and send texts? I find sometimes I don't received or get failed sent message notifications when these are not engaged.
2) Does it use significantly more battery to have 3G or WiFi engaged all the time? Does the phone automatically switch to WiFi when it becomes available, therefore not using the data plan (3G)?
3) Do iPhone batteries have a 'memory'? Do I need to run the battery down to the Red-line to maintain battery 'fullness'? I have been told with my MBP to plug it in whenever possible during use, but run it down about once a month to 'excercise' the battery. But batteries only have a certain number of charges.
Thanks