You are going to have to solder jumper wires, those corners never work without a dab of solder on them anyway. Take some small gauge wire and cut then into 1" strips. Take a tiny bit of insulation off on both sides and make sure you tin the wires first. Use the right kind of solder. Stay in the low temps, I don’t do F but I would say 380-400 quickly will do it. Also, tin the copper connections on the LED strips first. Don’t burn them off.
Make sure you are following the line on your strip. On my second TV with hyperion, I accidentally mounted the strip upside down on my TV so I had to use the reverse direction button when configuring hyperion.ng
What is it about soldering that you are having a hard time with and maybe I can be of service?
Again, make sure you ground your LED’s to the PSU as well as the Arduino. Use negative for ground at the end of your strip and feed a little more voltage in the +, ignore the control wire. I use 3 wire strips. I like the 5v ones, they work great. I run about 280 LED’s on my living room TV and 160 on the TV in my bedroom. No issues except having to push the LED button off and on again sometimes when hyperion doesn’t turn itself back on after I come back from a long screensaver delay or a reboot. Little bug I noticed. Just have to turn it off and back on again.
If you aren’t happy with the white level of your ws2812b lights, which is what I use, you need to feed more voltage into the middle and end of the strip from the PSU. Simple. Also, make sure you do the math and make sure you have enough amps. Even though it’s DC, it will still throw your breaker, I have done it twice now.
Lowering your brightness to 80& and brightness compensation to 70% will also help. Colored back light off and I like my Backlight threshold set to 10-15%.
If you are having an issue with whites, it’s not the LED’s I promise you that.
I apologize if this was posted twice, I had an issue with my email so I am not sure if was posted twice and this is not the correct channel for hyperion issues. These questions should be directed towards the people that created and update hyperion.ng on github or their own community for help, etc.