Wi-Fi (WLAN) panic on iPhone

Wi-Fi (WLAN) is a kernel panic that makes an iPhone restart on its own, usually leaving a Panic-Full log under Analytics Data. When this error line appears, the first part to check is IC Wi-Fi / Bluetooth. Severity is rated high, and confidence in this diagnosis is likely. Below you will find what the error means and its most common causes; to pin down what is wrong with your phone, scan the log with the Panic Scan app.

Basic information

Code

Wi-Fi (WLAN)

Category

Wi-Fi / Bluetooth

Severity

High

Confidence

Likely

Part to check

IC Wi-Fi / Bluetooth

What it means

The Wi-Fi driver hit an error. Often with greyed-out Wi-Fi, Wi-Fi not turning on, or shutdowns when Wi-Fi is enabled.

Common causes

• Faulty Wi-Fi IC / cracked solder joints
• Wi-Fi IC power supply
• Software issue (rare)

Errors in the same category

• Wi-Fi / BluetoothBluetoothIC Wi-Fi / BluetoothMedium
• Wi-Fi / BluetoothUWBChip UWB (U1 / U2)Low
• Wi-Fi / BluetoothPCIeDevice on the PCIe bus (Wi-Fi / baseband / NAND)High
• wifidwifid watchdog timeoutWi-Fi / BluetoothMedium
• bluetoothdbluetoothd watchdog timeoutWi-Fi / BluetoothMedium