Question about main battery connector
I did a battery repair for my friends girlfriend, I ended up getting the repair done. The battery cable didn't go in very easily and I may of forced it and caused the main connection to be messed up, but the phone turned on so I assumed I didn't. He alerted me her phone wasn't acting properly the next day, I went and replaced it again with a new battery to hopefully solve the problem. I looked at the main battery connection good this time, on the connection I saw It muffed up the corner, it looked like it was sticking out a bit, so the cable wasn't resting all the way. (believe that's why her phone was not working properly right after I replaced the battery) Knowing that it was totally my fault for messing up her phone I went and bought her a cracked iphone and replaced the screen, I wanted to give that to her to makeup for me messing up her main connection to the battery.
Her boyfriend ended up giving her his phone and getting an Iphone SE before I had a chance to give her the phone I bought. I insisted that I hand over some money to at least make up for the difference he may owe on his new phone.
He didn't really want any money after me offering multiple times but he offered for me to buy his girlfriends old phone (the one I messed up the battery connection) Being I wanted to give him money regardless I said heck yea I would, My question is... What do you think is a fair price to give him and is fixing the main battery connection an easy task? I believe I saw a video that showed some experience with mini soldering is required to fix the connector. Just trying to get someone's opinion, but yes I am sorry for the prolonged story and kinda random question, just thought you should know why I would be buying a phone with a messed up battery connection anyways. (To do the right thing after breaking her phone essentially) Thanks.
Is this a good question?