Di2 GP on Instagram: "Here’s a quick video summary of a charging port repair (replacement)! This rear derailleur was sent to me by @bettershifting Terry, who managed to rip his charging port off while testing #aliexpress USB-C chargers. If you ask me, it’s just not worth the risk. Using non-original chargers can damage your Di2, and the only proper fix is to replace the port itself. But here’s the catch: you can’t buy just the port, only a whole spare unit. If you’re desperate, you (might) be ab