The chip does not sport a manufacturer's name or mark. Instead, it bears only identification code "NSD425" alongside miscellaneous other numbers, likely batch identifiers, according to the photos published by blogger Sonny Dickson.
No such chip can be found among NXP's offerings, but Apple often works with silicon vendors to produce bespoke components. The Dutch firm was named late Thursday by the Financial Times as the supplier of Apple's NFC hardware.
Also present is a chip that seems to be Apple's "A8" processor. The package is noticeably smaller than its predecessor, the A7, allowing for a more tightly-packed logic board.
Other identifiable chips on the board are two Avago RF modules -- Avago is a longtime supplier of such chips for Apple -- and a Toshiba NAND module.
Separately, Feld & Volk posted a new video on Friday with a purported "iPhone 6" assembled from parts the company obtained. The video shows their attempts to turn on the device, being greeted with the "Connect to iTunes" screen and unable to boot further.
The screen shows Apple's current iTunes for OS X Mavericks logo, rather than the new red logo found in OS X Yosemite. If what the video shows is indeed legitimate, it would suggest that the hardware has an older version of iOS 8 installed, as the latest beta updated the "Connect to iTunes" screen to display the OS X Yosemite logo for the iTunes desktop suite.
Apple is expected to either confirm or deny all of the details on its forthcoming handset at a media event in Cupertino on Sept. 9. AppleInsider will be at the event and will bring live coverage from inside the theatre.