Reboot iphone 12. Forget both 5Ghz SSID and re-join. Forget both 5Ghz SSIDs. Change 5Ghz channel SSID name (high band one) on router (Netgear) and rejoin on iphone and download ~400Mbps, upload ~460Mbps. Forget 5Ghz SSID on iphone. On Netgear router, rename 5Ghz channel (high band) to original SSID name. Tap the name of the Wi-Fi network that you want to join. Before you can join the network, you might be asked to enter the network's password or agree to terms and conditions . After you join the network, you'll see a blue checkmark next to the network and the connected Wi-Fi icon in the upper corner of your display. 6. Periksa kondisi SIM card. Jika usia SIM card sudah lebih dari tiga tahun atau bagian chip-nya sudah memiliki banyak goresan, ada baiknya untuk mengganti kartu tersebut dengan yang baru. SIM card baru akan membuat kualitas penangkap sinyal di smartphone kamu berfungsi optimal seperti semula. 7. Pastikan kuota data masih tersedia Open the Settings app, then scroll down and tap General. Select Background App Refresh, then tap Background App Refresh again. Select Off. 10. Adjust Location Services to Fight iPhone Battery Drain Issue. Location Services is another sneaky feature that could explain why your iPhone is losing charge. By. Craig Lloyd. The iPhone 6 comes with a lot of new features, and one feature that Apple is touting is improved WiFi capabilities thanks to the better and faster 802.11ac wireless chip on the Step 4. Install Update for Your iPhone ; Step 5. Repair iOS System ; Step 1. Restart Your Device . Start with a formal reboot of the device. The steps are slightly different on iPhone models, just follow on: How to restart an iPhone 12, iPhone 11 or iPhone X: 1. Press and hold either of the volume button and the side button until the power off Here are the steps. Step 1: Go to Settings > Wi-Fi. Then locate the network that you suspect as faulty and tap on its (i) icon. Step 2: Tap on the option "Forget This Network". Method 4. Reset Network Settings. You can also try resetting the network settings of the iOS device if iPhone internet not working. Open Settings ️ General ️ Software Update: If there is an update available for your iPhone then it will be listed here. Follow the on-screen instructions to download and update your iPhone. Your iPhone must have a fast Wi-Fi connection; you cannot update over cellular data or a cellular hotspot. 2VyynfW.