The wireless stack is handled by an Infineon dual-band MIMO Wi-Fi/Bluetooth/FM radio chip (likely a variant of the ). iFixit noted that the internal antennas were repositioned and connected with taped wires, which increases connection stability but complicates repair disassembly.
If the console is dead, the schematic shows the "Power Tree." A technician will use a multimeter to probe: Schematic Nintendo Switch Oled
The console charges and functions fine in handheld mode, but the dock does not output any signal to the TV. Diagnosis: This is often a hardware fault on the main logic board, not the dock itself. Using a mechanic reader (or multimeter), you may find that Pin 8 and Pin 17 on a specific connector show "OL" (Open Line). According to the Repair Wiki, this points to a blown choke on that circuit. Solution: The choke (a small SMD component) is located on the bottom side of the board, above the USB-C port. Replacing it with a donor part from another Switch or even a compatible part from an iPhone or iPad often restores HDMI output. The wireless stack is handled by an Infineon
You want to install a modchip (like the Picofly or HWFLY). The schematic tells you where to tap 3.3V , CLK , DAT0 , and CMD lines on the eMMC. Guessing these leads is how you brick a $350 console. Diagnosis: This is often a hardware fault on
features several internal changes from the original model to accommodate the larger screen and redesigned kickstand.