Below are some common problems and their basic troubleshooting for the iPhone 6s:
1. Battery Drain: This is a common issue with older iPhones including the 6s. Try to optimize your battery usage by limiting background app activity, reducing screen brightness, and disabling dynamic wallpapers and motion effects. If your battery health is significantly degraded, you might want to consider replacing it.
2. Slow Performance: If your iPhone 6s is running slow, try clearing out unnecessary files and apps to free up storage space. Also, restarting your iPhone can often speed it up by clearing out temporary files and stopping unnecessary processes.
3. Overheating: If your iPhone 6s gets hot, make sure you're not using it in extremely hot conditions and don't leave it in direct sunlight. Also, heavy usage can cause the device to heat up, so try giving it a rest if it gets too hot.
4. Connectivity Issues: If you're having trouble with Wi-Fi or Bluetooth, try turning the service off and back on again. If that doesn't work, go to Settings > General > Reset > Reset Network Settings. Note that this will also forget Wi-Fi networks and passwords, cellular settings, and VPN and APN settings.
5. Apps Crashing: If specific apps are crashing, try uninstalling and reinstalling them. If all apps are having issues, you might need to update your iOS software or reset your device.
6. Touchscreen Issues: If your touchscreen is not responding, try restarting your iPhone. If the problem persists, you may have a hardware problem and should contact Apple or an authorized service provider.
7. Software Update Issues: If you're having trouble installing an update, make sure you're connected to Wi-Fi and your battery is charged or the phone is plugged in. If the problem persists, try updating through iTunes on a computer.
Remember to always back up your data before performing any major changes or updates to your device. If you're still experiencing issues after trying these steps, you might need to contact Apple Support or visit an Apple Store for further assistance. Contact Clear Wireless Support for assistance as well.