Brisbane Technical Hub

Held in real local stock at Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078. Trade pickup welcome.

Authenticity Guaranteed

Genuine Broadcom BCM15900B0KWFBG. Visually inspected for damaged balls before dispatch.

Reliable Dispatch

Standard 2-4 business day dispatch with tracked courier or AusPost express. Pay your way at checkout.

Hot Air Rework Station Needed

Removing a 225-pin BGA needs hot air at controlled airflow. No iron-only swaps possible.

BGA Reballing Skills Required

Most chips ship without solder balls. Reball with stencil, paste and proper solder profile.

Microscope Inspection Mandatory

Use a stereo microscope to verify joint quality. Bridged or cold joints kill touch function.

Trained Technicians Only

Not a DIY part. Sold to repair shops, board-level techs and TAFE refurbishers in Australia.

Touchscreen Digitizer Controller

Drives the digitizer layer of the iPad screen. Reads every finger touch input.

Multi-Touch Signal Processing

Tracks pinch, zoom, swipe and 10-finger inputs. Sends clean coordinates to iOS.

Apple Pencil Compatibility

Handles Pencil signal alongside finger touch. Works on both Pencil 1 and Pencil 2 iPads.

Soldered to Logic Board

Sits on the iPad mainboard underside. Talks to the SoC via dedicated touch lanes.

Apple Internal Codename: Cumulus

Apple internally refers to this chip as Cumulus. Trade techs use both names interchangeably.

RoHS Compliant Lead-Free

Lead-free package. Reflow profile must use lead-free or low-temp solder paste.

iPad 6 (2018) — A1893, A1954

9.7-inch sixth-generation iPad. Wi-Fi only and Wi-Fi plus Cellular variants.

iPad 7 (2019) — A2197, A2200, A2198

10.2-inch seventh-generation iPad. First entry iPad with the larger 10.2″ display.

iPad 8 (2020) — A2270, A2428, A2429, A2430

10.2-inch eighth-generation iPad. A12 Bionic refresh of the 10.2″ chassis.

iPad 9 (2021) — A2602, A2604, A2603, A2605

10.2-inch ninth-generation iPad. Final 10.2″ iPad before the iPad 10 redesign.

iPad mini 5 (2019) — A2133, A2124, A2126, A2125

7.9-inch fifth-generation mini. Last mini before the iPad mini 6 redesign.

iPad Air 3 (2019) — A2152, A2123, A2153, A2154

10.5-inch third-generation Air. Same chassis form factor as the iPad Pro 10.5″.

iPad Pro 9.7″ (2016) — A1673, A1674, A1675

First small iPad Pro. Apple Pencil 1 support and True Tone display.

iPad Pro 10.5″ (2017) — A1701, A1709, A1852

Refreshed mid-size Pro. ProMotion 120Hz first appeared on this model.

iPad Pro 11″ 1st Gen (2018) — A1980, A2013, A1934, A1979

First Face ID iPad Pro. Apple Pencil 2 magnetic charge support.

iPad Pro 11″ 2nd Gen (2020) — A2228, A2068, A2230, A2231

A12Z refresh with LiDAR. Confirmed BCM15900B0 fitment by trade suppliers.

iPad Pro 12.9″ 1st Gen (2015) — A1584, A1652

Original large iPad Pro. Apple Pencil 1 with home button retained.

iPad Pro 12.9″ 2nd Gen (2017) — A1670, A1671

Second large Pro. ProMotion 120Hz refresh and True Tone added.

iPad Pro 12.9″ 3rd Gen (2018) — A1876, A1895, A1983, A2014

First Face ID large Pro. Squared edges and Apple Pencil 2 magnetic charge.

iPad Pro 12.9″ 4th Gen (2020) — A2069, A2229, A2232, A2233

A12Z LiDAR refresh of the large Pro. Last large Pro before the M1 jump.

iPad 10 (2022)

Uses the 210-pin BCM15957A0. Different package, different ball pattern.

iPad Pro 11″ 3rd Gen (2021) and Later

M1 and later 11″ Pro models use the BCM15957A0 chip. Wrong part for this listing.

iPad Pro 12.9″ 5th Gen (2021) and Later

M1 and later large Pro models use the BCM15957A0 chip. Wrong part for this listing.

iPad Air 4 (2020) and iPad Air 5 (2022)

Both use the 210-pin BCM15957A0. Different chip from the iPad Air 3.

iPad mini 6 (2021) and Later

Different touch IC than the mini 5. Verify your part before ordering.

iPad Air 1, Air 2, mini 4 and Older

Older iPads use Apple/TI 343S series touch ICs. Different chip family entirely.

Total No Touch Response

Image displays normally but the digitizer ignores all input. Classic dead-IC failure.

Ghost Touches and Random Inputs

Phantom taps appear with no finger contact. Often opens random apps unprompted.

Dead Zones on the Screen

Strips or patches of the screen do not register touch. Other areas work normally.

Lag or Delayed Touch Response

Touch input arrives late. Scrolling and typing feel sluggish across all apps.

Intermittent Touch Failure

Touch works for a while then drops out. Comes back after a sleep cycle or restart.

Multi-Touch Gestures Fail

Single touch works but pinch, zoom or two-finger gestures stop responding.

Apple Pencil Drops Out

Pencil input lags or skips strokes. Often the first warning of touch IC failure.

Persists After New Digitizer

Replaced the screen but symptoms remain. Confirms the fault is on the logic board IC.

1. Swap-Test The Digitizer First

Fit a known-good digitizer. If the fault clears, the IC is fine and the screen was the issue.

2. Inspect The Board for Damage

Check for liquid damage, corrosion or impact cracks near the touch IC pad area.

3. Check Touch Rail Voltages

Probe the IC supply rails with a meter. Confirm power is reaching the chip.

4. Reflow Before Replace

Try a careful reflow first. Many touch IC faults are cold-joint cracks, not dead silicon.

Board-Level Repair Shops

Logic board ghost touch and dead touch jobs. Trade pickup from Brisbane stock.

iPad Refurbishers

Restoring used iPad stock for resale. Recovers boards otherwise sold for parts.

Mall Kiosk Chip Specialists

Walk-in micro-soldering jobs. Local Brisbane stock means same-week chip swaps.

Insurance Repair Assessors

Component-level fix beats a write-off claim. Cheaper for the insurer and the customer.

Trade-In and Buyback Shops

Recover dead-touch trade-ins for resale. Higher buy-back margin on revived units.

Education Tech Departments

Schools running fleet iPads in classrooms. Recover dead units instead of buying new.

TAFE and Repair Students

Practice BGA reball on a real Apple chip. Build bench skills for paid repair work.

eBay AU and Marketplace Resellers

Selling refurbished iPads to AU buyers. Recovers ghost-touch units to working stock.

Regional and Rural AU Techs

No board-level supplier nearby. Tracked courier delivers to every Australian state.

Apple Out-of-Warranty Drop-Outs

Apple AU offers full board swap or no fix. Component-level repair is the smart pick.

Use a Stencil for Reball

A direct-heat stencil for the BCM15900B0 makes the reball fast and consistent.

Match The Original Solder Type

The board uses lead-free solder. Reball with lead-free balls to keep reflow profile correct.

Pre-Heat The Board First

Bring the board to 150C on a preheater before applying hot air. Reduces thermal shock.

Mind The Pad Orientation

Confirm pin 1 marker before placing. Wrong orientation kills the touch path on the board.

Clean The Pads Properly

Remove all old solder with desolder braid and flux. Inspect under microscope before placement.

Protect Adjacent Components

Use kapton tape and heat shield around the IC. Hot air can shift nearby capacitors.

Test Before Reassembly

Power up the board with a known-good digitizer attached. Verify touch before closing the iPad.

No Returns Once Soldered

Inspect on receipt. Once the chip is reflowed onto your board it cannot be returned.

Manufacturer

Broadcom

Short Part Number

BCM15900B0

Full Part Number

BCM15900B0KWFBG

Apple Codename

Cumulus

Function

Touchscreen digitizer controller

Package Type

BGA (Ball Grid Array)

Pin Count

225 pins

Compliance

RoHS lead-free

Board Position

Soldered on iPad logic board

Soldering Method

Hot air rework station

Reball Required

Yes (most chips ship bare)

Pre-Dispatch Check

Visual inspection for damage

Warranty

Inspection on receipt only

Sold For

Trade and bench techs only

Compatible iPad Lines

14 model lines (see fitment)

Replaces Failed

BCM15900B0 only

Stocked in Brisbane

Held at Shop 3A, 152 Woogaroo St, Forest Lake QLD 4078. Real local inventory.

Tracked Delivery to Every State

Posted via tracked courier or AusPost express. ESD-safe packaging on every IC.

Pay Your Way

Pay your way — Afterpay and Klarna available at checkout for trade and bench buyers.