How a Swiss Student Turned an iPhone X into a $56K USB‑C Masterpiece

Many users dream of a single charging cable for all devices. While USB‑C has become the mainstream charging interface for most Android phones, tablets, iPads, and Macs, Apple still uses its proprietary Lightning port on the iPhone 13 series.

In response to this, a master's student at the Swiss Federal Institute of Technology (EPFL) took matters into his own hands and replaced the Lightning port of an iPhone X with a USB‑C connector. He listed the modified device on eBay, where it quickly attracted bids exceeding $86,000 (about ¥560,000).

The student, who studies robotics at EPFL and minors in data science, spent several months on the project during his spare time. He first attempted a simple conversion using existing USB‑C‑to‑Lightning adapters, but the approach failed. He then designed a custom circuit board that converts a USB‑C male plug into a USB‑C female socket, effectively creating a “C94 Board” that replaces the original Lightning connector.

After assembling the board, the device looks like a normal iPhone X externally, but internally it features the USB‑C port. The student documented the entire process in a blog post and a video, sharing the detailed steps and challenges.

Beyond the technical feat, the story highlights the strong user demand for a universal charging standard. Many Chinese netizens have called for the Chinese Ministry of Industry and Information Technology to mandate a single charging interface for small electronic devices. The European Union also proposed legislation to standardize power adapters on USB‑C, but Apple opposed it, citing electronic waste concerns.

Apple’s reluctance to adopt USB‑C for iPhones, despite having switched iPads and Macs, is often attributed to the revenue from its MFi certification program, which requires a $2 chip in every Lightning cable.

The episode underscores the intersection of hardware hacking, consumer expectations, and regulatory debates surrounding the future of mobile charging standards.