DCSD Cable



The DCSD Alex cable is used in factories to communicate over serial to run tests and write to the SysCfg (for serial definitions, etc) during production. These cables are produced by Shenzhen Alex Connector Co. Ltd. in China; this may be why they can be found on obscure markets for sale, if not just taken from a trash can from factories.

Other notes

 * The Lightning Connector has a specific Accessory ID flashed to it for enabling serial via the Tristar chip.
 * This PCB is quite easy to replicate, but without the proper Accessory ID you will need to mimic the protocol similar to how key2fr did in his research.
 * In theory, you can use the Tristar for JTAG through a similar board, but JTAG gets disabled by the device during boot due to production fusing status.