Key Specifications & Target Devices
- Motherboard Location Designator: Identified as U3300 on schematic board maps.
- Primary Compatibility:
- iPhone 8
- iPhone 8 Plus
- iPhone X
- Function: Handles 5V input supply regulation and acts as the gatekeeper for safe power dissipation into the phone’s logic board.
Common Symptoms of a Failing SN2501 IC
If this chip is damaged, you will typically run into these issues:
- The phone does not charge at all or drops connection constantly.
- “Fake charging” happens, where the charging lightning bolt icon displays, but the battery percentage never goes up.
- Rapid battery drain or the phone getting exceptionally hot near the top center section of the logic board.
- The phone won’t turn on or remains stuck drawing 0.00A on a USB power meter.
Replacement Notes
- Advanced Microsoldering Required: This chip is a Ball Grid Array (BGA) component surface-mounted to the logic board. Replacing it demands an SMD hot air rework station, specialized flux, solder paste, and micro-tweezers.
- Model Distinction: While later iPhone models like the XR, XS, 11, and 12 use similar Tigris architectures, they rely on successor variants like the SN2600B1 or SN2611A0. Always verify your board schematics before substituting.
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