It controls USB charging on the iPhone logic board. When you plug in a charger, this chip manages the flow of power into the battery. It also handles power delivery communication and protects the phone from voltage spikes.

When it fails, charging stops working — sometimes completely, sometimes just intermittently.

The SN2611A0 fits all iPhone 11 and 12 models. On iPhone 11 series it sits at position U3300. On iPhone 12 series it sits at U4000. Use your phone's schematic to confirm the position before removing any chip.

It does not fit iPhone 13 or later. Check your model number in Settings → General → About before ordering.

Yes. Yangtze is a widely trusted aftermarket parts brand in the mobile repair industry. Major suppliers like Injured Gadgets, Mobile Sentrix, and eTech Parts all stock Yangtze-grade SN2611A0 chips.

This is an aftermarket compatible part, not Apple OEM. It is made to the same specification and performs the same function. Always verify part number marking (SN2611A0) before installation.

No. This is a 71-pin BGA chip. It requires a hot air rework station, microscope, multimeter, solder paste, and flux. It also needs precise heat control at 350–380°C.

One mistake can permanently damage the motherboard. This job is only for trained micro-soldering technicians. If you need help, our Forest Lake store offers this service.

Possibly. The SN2611A0 controls wired USB charging. Wireless charging goes through a separate circuit. If wired charging fails but wireless still works, the Tigris IC is a strong suspect.

Before ordering, check the charging port for debris or damage. Try multiple genuine Apple cables. If none work and wireless charging is fine, the SN2611A0 is a likely culprit.

You need a hot air rework station with precision temperature control. A soldering microscope is required for accurate alignment. You will also need a digital multimeter, desoldering wick, flux, solder paste, and precision tweezers.

A motherboard fixture to hold the board steady is also strongly recommended. Always work in an ESD-safe environment.

Test with a multimeter before closing the device. Check resistance on VBUS, D+, and D− lines. Values should be within normal range for the iPhone 11 or 12 schematic.

Plug in a known-good Apple charger and verify the charging icon appears. Confirm charging speed is normal. Only reassemble fully once charging is confirmed working.

The SN2611A0 is one cause of this error. However, the Tristar IC (U2) is another common cause. The Tristar (also called 1612A1 or 1614A1) handles USB communication alongside the Tigris.

If replacing the SN2611A0 alone does not clear the error, the Tristar IC should also be inspected. A full schematic check of the charging circuit will help pinpoint the exact fault.

Always use genuine Apple cables and chargers. Avoid charging from car chargers with poor voltage regulation. Do not use the phone heavily while charging for long periods.

Keep the device away from moisture. If the phone gets wet, have it cleaned by a technician immediately. Act fast — water damage to this chip happens quickly.

Orders ship within 2–4 business days from our Forest Lake, Brisbane store. Express shipping is available at checkout. Free standard shipping applies to orders over $150.

All orders include tracking. Call 0480 039 913 or email info@jpcmobileaccessories.com.au for stock questions. Mon–Fri 9:00am–5:00pm, Sat 10:00am–5:00pm.