What is a CNC board actually for?

iPhone boards from the 8 onward are two layers soldered face to face. If one layer is destroyed, you keep the good one and pair it with a prepared donor — this is that donor, already milled flat and clean of old solder.

Do I need a reballing stencil as well?

Yes. The two layers rejoin through an interposer ball array, so you need the middle-layer stencil for this model plus paste, flux and hot air. The CNC board only removes the cleaning-up stage.

Upper or lower — which do I need?

The opposite of whichever layer survived. This one is the upper layer, so it pairs with a good lower half.

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iPhone 12 Pro Max Upper CNC

Name: iPhone 12 Pro Max Upper CNC
SKU: DFX-12PM-CNC-UPPER
Price: 4500 PKR
Availability: InStock

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A CNC-machined upper board layer for the iPhone 12 Pro Max.

Rs 4,500

A CNC-machined upper board layer for the iPhone 12 Pro Max. • Machined upper layer for the iPhone 12 Pro Max • Milled flat and clean, ready to reball • Saves a…

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A CNC-machined upper board layer for the iPhone 12 Pro Max.

Key features

Machined upper layer for the iPhone 12 Pro Max
Milled flat and clean, ready to reball
Saves a customer board where only one layer is dead

What this is used for

Replacing a board layer damaged beyond repair
Salvaging a working layer from a dead board
Stacked-board reconstruction

Who it's for

Board-level specialists doing stacked-board reconstruction.

Where it fits in the repair

Split the customer board, recover the good layer, clean and level both mating faces, reball the interposer array through a middle-layer stencil, align the CNC donor and reflow.

Manufacturer description

A CNC-machined upper board layer for the iPhone 12 Pro Max. • Machined upper layer for the iPhone 12 Pro Max • Milled flat and clean, ready to reball • Saves a customer board where only one layer is dead Compatible with: iPhone 12 Pro Max logic board.