Why won't it turn back on

I had it die on me before and took it to a phone repair store and they fixed the battery, charging port, and a chip in the motherboard. I’ve only had it back for two days and the first night it had charged during day and night. Then last night I went to Walmart and baught a apple iPhone charger and a headphone attachment adapter that goes in the charger slot. I used the attachment peice to listen to music until the battery died so I charge my phone and it showed the little battery thing and 3 red lines at the end of it. So I keep it charging the rest of the night and now it won’t turn on. Please help me figure out what’s wrong