My first problem was with Helder AIO 2.2, I soldered the USB data lines to my RPi Zero and was too hard, and I think I destroyed the USB data line, because of this:
![Image](http://i.imgur.com/SX8d7mt.jpg)
I tried to resolve this and this was the result (untested yet):
![Image](http://i.imgur.com/2wm8q4u.jpg)
Then, I continued soldering and it was too hard, don't know if I'm bad at soldering or my cable is too fat, this is an image of my cable soldered and the cable I bought:
![Image](http://i.imgur.com/WWWkASX.jpg)
![Image](http://i.imgur.com/IRhVU0J.jpg)
(yes, my nails are ugly xD)
![Image](http://i.imgur.com/Hpdsfs6.jpg)
My problem was to fit the cable inside the hole, it entered but it was too hard to put it in the hole. In other things like microUSB hole and Camble safe shutdown it doesn't enter. And trying to put the data lines in my RPI Zero was nearly imposible, the cables touched and didn't fit with my tin.
I tried to use the internal cable of and old microUSB cable and I found it too thin:
![Image](http://i.imgur.com/tdZYkEl.jpg)
What do you think guys? I have to buy a middle size of my two cables? Or I have to learn to solder? Any tutorial about this?
And the most important question: do you think my helder AIO will work?