matherp Guru Joined: 11/12/2012 Location: United KingdomPosts: 11842
Posted: 07:10am 03 May 2019
I tin the PCB and connector, then lots of flux and use the heatgun until the connector settles into the solder, let cool, check connections, then solder the legs. Works for me.
I use 2 tricks for this. One is to use right angle headers for the console, but the best is to stand the display off using these.
I cut the pins so they sit flush into the existing 40 pin socket on the backpack. Then you can get connectors to all the backpack pins with no issue