Nokia 8.1 Schematic Diagram [ ULTIMATE - CHECKLIST ]

| Fault | Needed schematic info | |--------|------------------------| | Not charging | Charging IC (likely inside PM660L), BAT_DET pin, VBUS line | | Dead / No power | PM660 power IC, PWR_ON signal, VREG_L1~L12 outputs | | No display | Display connector pinout, backlight boost IC, LCD_AVDD | | No USB connection | USB CC lines, USB_SW (like FSA4480), DM/DP resistors | | No audio | SmartPA (TAS2557 or similar), audio codec (WCD9340?) |

: Technical maps detail the RF (Radio Frequency) section, including antennas for dual-band Wi-Fi, Bluetooth 5.0, and the NFC area located on the device's back. Troubleshooting and Repair Insights nokia 8.1 schematic diagram