i have a samsung s4. i need an upgrade. it is NOT working the way it should be. i have tried everything to fix it and nothing is working. I cannot even get it to stay charging when it is plugged in. i have used over 10 different chargers and none of them work. i have 9 months left in my contract (my husband and i are both on the same contract and his phone is just as bad as mine) i NEED my phone for work purposes. something needs to be done or my only other option will be to switch wireless service. my husband and i are extremely frustrated.