343S0674 Power Management IC for iPad mini 4 / iPad Air 2 (4G Version)

The iPad mini 4 and iPad Air 2 share a generation of Apple chips, and this listing sells one PMIC for both, in their 4G versions. For shops that see both tablets, one part covers the cellular models.

It's the Apple 343S0674 power management IC, with 380 pins according to the listing, for the iPad mini 4 (A1538, A1550) and iPad Air 2 (A1566, A1567), 4G version. On the iPad Air 2 board, the PMIC sits at U8100.

Reasons to replace it

• No power with the battery and charging circuit ruled out.

• Missing PMIC rails with VCC_MAIN present.

• A short traced to the PMIC.

• Liquid damage under the chip.

Match the version

The store also lists 343S0675 (342 pins) for the iPad Air 2, so read the number on your chip before ordering. The listing marks this part as the 4G version.

Removal needs a preheater and patience with the underfill. After fitting, check rails and test boot, touch, charging and cellular before closing the iPad. On the mini 4, take extra care with the thin screen when reopening and resealing it.