Setup Guide GBASP flex - gbaHD/GBAHD-Shield GitHub Wiki

The Flex makes the install on the one hand much quicker but also a bit harder, since the flex has to be soldered directly to the CPU pins and this pitch is very small. But on the other hand you don't have to solder all these wires to the testpoints on the board which saves you a lot of time.

Disclaimer: We've ordered the Flex-Cable from OSHpark and had mixed results with broken traces, bridges halfcut vias etc. Use them at your own risk and accept the fact, that you'll have to fix them yourself.

First solder on the 16pin ffc connector to the flex-cable:

Then align the flex with the CPU Pin - make sure it's aligned directly against the pins:

Solder with a lot of flux and only a litle bit of solder.

After you've soldered the flex in you should check for shorts between the pins and from the flex-connector to the CPU