Repairing the OP-1 OG in case the keyboard is not working.
First, I bought an OP-1 keyboard for $500. Several of its keys weren't working, so I took it in for repair. However, there were no replacement parts available. I disassembled it to inspect the internal circuitry and found that the solder joints were missing. I applied a thin layer of conductive ink, and surprisingly, it worked again. I repeated this process for all the malfunctioning keys until they were all functioning normally. Materials needed: 1. 99% IPA solution, 2. Solder wire (to mark missing solder joints), 3. Conductive ink (silver), and 4. A very small needle (to apply the ink to the keyboard). The process is: clean the keyboard with IPA solution, place the solder wire on the missing joint, and if the joint is damaged, apply a very thin layer of conductive ink. Let it dry for about 2-3 hours, then try pressing a key. If it's sticky, gently scratch the conductive ink with your fingernail. If the key doesn't stick, it's working. Repeat this process for all the problematic keys. Instructions for disassembly and reassembly can be found on iFixit; I've included pictures in case this post is helpful for others with the same problem. (I translated this text using Google Translate.) I am in Thailand. If anyone has the same problem as me, they can contact me.