Use a toothpick or compressed air to remove lint from the charging port.

Press and hold the Home button and the Power (Sleep/Wake) button simultaneously.

Use a known-working, MFi-certified Apple cable and wall adapter. Cheap, non-certified cables often damage the internal charging IC.

Plug it in for at least 30–60 minutes before attempting another force restart.

Keep holding both for at least 10–15 seconds until the Apple logo appears. 2. Check Charging Components