Wi-Fi or Bluetooth not working on your phone? How to diagnose it

This is the most useful first observation. If only Wi-Fi or only Bluetooth is misbehaving, it's more likely software or a specific network/accessory. If both died together — especially if the toggles are greyed out or flip themselves off — that points more at the shared wireless chip or board.

These resolve the large majority of connectivity problems:

• Toggle Airplane mode on/off, then restart the phone
• For Wi-Fi: 'forget' the network and rejoin with the password
• For Bluetooth: unpair the device and pair it fresh
• Reset network settings (clears corrupted Wi-Fi/Bluetooth config)
• Install pending software updates

Isolate the variable. For Wi-Fi, check whether other devices connect to the same router — if they do, the issue is your phone; if nothing connects, it's the router. For Bluetooth, try pairing a second accessory — if everything fails to pair, it's the phone; if only one device won't, it's that accessory.

Suspect a hardware fault if:

• The Wi-Fi or Bluetooth toggle is greyed out or won't switch on
• Both stopped working after a drop, water, or a repair
• Connection range is suddenly tiny (drops a metre from the router)
• Settings show 'Wi-Fi: No Hardware Installed' or similar

Wireless faults that survive a network-settings reset are usually antenna or board-level (the Wi-Fi/Bluetooth combo chip), which calls for chip-level repair. iTweak diagnoses and shows you the fault before quoting, repairs Apple and Android, and backs the work with warranty and a digital invoice — doorstep in Bangalore, Mumbai and Chennai or free pickup nationwide.