QianLi iSocket Middle Layer Logicboard Test Fixture for iPhone 17 Series

The QianLi iSocket for the iPhone 17 series is a 4-in-1 layered motherboard test fixture that lets you power up and test a stacked iPhone logic board on the bench - without soldering the layers back together. It covers all four models in the range (iPhone 17, iPhone 17 Air, iPhone 17 Pro and iPhone 17 Pro Max) from a single base, using a set of four interchangeable pinboards, one matched to each models board layout.

Modern iPhone main boards are built as two PCBs stacked on top of each other. After a board-level fault repair, this fixture holds the upper and lower sections together and makes contact with the test points so you can supply power and a display and confirm the board is working BEFORE you commit to permanently re-soldering it. Test first, solder once - saving the time and risk of soldering, testing, and having to separate the board all over again if the fault is not fixed.

Precision matters on layered boards, so the iSocket is CNC-machined to tight tolerances. Double-headed, tapered probes align cleanly with the boards test points for reliable contact and accurate readings, and resist rosin and solder build-up. Beryllium-copper (BeCu) spring probes give excellent conductivity and stable, low-deviation contact, while fixed buckles clamp the board flat to stop it warping during testing. A quick-rebound spring mechanism makes loading and unloading fast, and rubber anti-slip feet keep the fixture planted on the bench.

In the box: 1 x iSocket test platform base and 4 x interchangeable pinboards (iPhone 17 / 17 Air / 17 Pro / 17 Pro Max). To use, seat the lower motherboard on the base, fit the correct model pinboard, position the upper board, secure it with the wings, then connect power and a display to test. An essential bench tool for professional board-level Apple repair - pair it with a QianLi middle-layer reballing station for the full separate-reball-test-rejoin workflow.