Specifications
iPhone 4 (GSM model) Take Apart — Internal Checks 98
2012-02-21
Internal Checks
Internal Liquid Contact Indicators
The iPhone 4 (GSM model) contains two internal liquid contact indicators (LCIs) on the logic
board. If an LCI is activated (red), it indicates contact with liquid, which can cause damage that
is not covered under warranty and is not eligible for modular repair, but is eligible for Out-of-
Warranty (OOW) paid whole unit replacement.
Important: If an internal LCI is activated or corrosion is present, reassemble the device and do
not proceed with modular repair.
Missing Internal Parts
If there are missing internal components or parts, it is considered evidence of disassembly or
modication, which:
• is NOT covered under warranty
• MAY qualify for a paid repair.
For more information, see Apple Support article TS3756: iPhone and iPad: Handling service
requests when device has missing or modied parts.