I just calibrated my battery in my samsung galaxy s4 because ive heard that it speeds up the charging process, but then after 10 seconds my phone reboots/restart and when its turned on again ive got about 10 seconds to do something untill it reboots again. I have searched some forums for this problem but the only problem i found when the battery was drained. But ive still got the same amount of battery power(don't know what its called, so i call it power). Please help me with this, i have tried taking out battery and having a charger connected but it don't help! I have a rooted device btw. Please help me ASAP!