Samsung galaxy s5 not turning on
Hi, I got a samsung galaxy s5 from ebay about a week ago, and I've been very happy with it, I don't remember if it was new or like new, but I bought it without a battery cover. I bought a battery cover seperately, but there have been problems with the shipping, and it's supposed to come in a week or two. Anyway, the phone was working fine, until the battery dropped out. I put it back in, but the phone wouldn't turn on. After many tries, maybe ten to fifteen minutes later, it finally turned on. I didn't pay attention to it until it happened again when I put in the new sim card. Again, it turned on after fifteen minutes. Should I do something about this? It can't be normal, because I took out the battery once with no problem.