Every dead phone has a fix.

Power and charging Ports, charging ICs, batteries Display and touch Black screens, ghost touch, backlight Audio and mic Speakers, earpieces, call audio Network and IMEI No SIM, no signal, baseband Water damage Corrosion, short circuits, recovery Software and boot Boot loops, flashing, FRP Camera Blurry, black, or non-working camera Battery Drains fast, swollen, or won't hold charge Buttons and switches Power, volume, mute or home button Sensors and biometrics Fingerprint, Face ID, proximity Motherboard Dead board, short circuit, no power Wi-Fi and Bluetooth No Wi-Fi, no Bluetooth, weak signal Screen and back glass Cracked glass replacement Storage and memory Storage full errors, eMMC failure Vibration and haptics No vibration, stuck motor SIM tray and card reader SIM not detected, stuck tray