My m4 has multiple issues. since i had it its been slow, sometimes it takes about 5 mins to open up its texts and contacts, i think it's Internet linked as it gets turned off when phone is on standby. memory is another issue from day 1, i am constantly cleaning my phone. But to even get an essential app on, i have to take about 3 off. And just this weekend the load speaker has failed. i have no alarns, no ringtone, no video sound. I think the incall speaker is beginning to fail too, as talking to a friend over the weekend, she could hear me but i couldn't hear her. my phone is essential for work and staying in contact with family. another issue is that, best described, has a mind of its own. i can be on the playing video one minute, then randomly calling the next. I hate this phone and want to upgrade but can't, what the is worng with it?