Enable or Disable Airplane Mode
When airplane mode is switched on, your Huawei phone drops every connection at once, including mobile network, mobile data, Wi-Fi and Bluetooth. Calls, texts and data transfers stop working until you turn it off again. This mode is meant for flights, but it also gets triggered by accident through quick settings or after a restart.
Enable or Disable Automatic Network Selection
If your Huawei phone stopped connecting to your provider's standard network after you searched for a carrier manually, automatic network selection is likely turned off. Without it, the phone stays locked to the network you picked by hand, even once a stronger or cheaper connection becomes available. Switching it back on lets the phone pick the best network on its own again.
Change SIM PIN
A new SIM card usually ships with a default PIN that nobody remembers for long. On a Huawei phone that factory PIN stays active until you replace it with your own code. Enter it wrong three times in a row and the SIM locks itself, so it is worth setting a PIN you actually recognize before that happens.
USB Tethering: Enable or Disable
If your laptop shows no internet connection after you plug in your Huawei phone via USB, USB tethering is probably still switched off. Windows or macOS only picks up the shared connection once the toggle is active on the phone. Without it, the cable link stays a simple charging connection.
Enable or Disable Bluetooth Tethering
Need to share mobile data with a laptop but do not want to plug in a USB cable? On many Huawei phones, Bluetooth tethering sits hidden inside the mobile network settings instead of the usual hotspot menu, which makes it easy to overlook. Once the phone is paired with the target device, the connection works even a few meters apart, though at lower speed than a hotspot.
Add a WiFi Network Manually
If your Huawei phone does not list a WiFi network in the scan results, the router is usually hiding its SSID broadcast. In that case the network has to be added by hand, using the exact network name and password. Getting the SSID wrong by even one character keeps the connection from working.
Location Scanning via Wi-Fi and Bluetooth
Even with Wi-Fi and Bluetooth switched off, your Huawei phone can still run short scans of nearby networks and devices to pinpoint your location. This happens whenever an app with location permission asks for the most accurate fix available, no matter what your radio toggles say. The scanning behavior sits in a separate setting from the Wi-Fi and Bluetooth switches themselves, which is why turning those off doesn't stop it.
Enable or Disable Wi-Fi Calling
If your Huawei phone shows only one or two bars indoors, regular calls often drop or sound choppy even though your Wi-Fi connection is fine. Wi-Fi Calling routes voice calls through your wireless network instead of the mobile signal, which fixes exactly this kind of dead-zone problem. Before you turn it on for the first time, it helps to know that emergency calls are not supported over Wi-Fi Calling.
Rename a Paired Bluetooth Device
Bluetooth headphones or speakers often show up in your paired devices list with nothing but a cryptic model number. Once you have paired several accessories on your Huawei phone, telling them apart becomes guesswork. A custom name for each device fixes this without any extra app.
Enable or Disable Location Tag
If your camera app is not saving where a photo or video was taken, the location tag is switched off by default on most Huawei phones. Without it, sorting or searching your gallery by place becomes a lot harder, especially once your library grows. Turning the tag on lets you find shots again just by the location where you took them.
Enable or Disable NFC
Contactless payment at the checkout suddenly fails on your Huawei phone, or a fitness tracker refuses to pair via tap. In most cases the NFC radio is simply switched off in the connectivity settings, sometimes without you noticing. Leaving NFC active permanently can also drain battery faster if you never use tap-to-pay.
Use Simple Characters for SMS
If your text messages split into several SMS parts even though they look short, special characters like curly quotes, accented letters, or emoji are likely forcing Unicode encoding, which cuts the character limit per message. Huawei's Use simple characters option rewrites those characters into plain ASCII equivalents before sending, so a single SMS covers more text. Without an SMS flat rate, this setting can noticeably lower your messaging costs.
Pair Bluetooth Devices
If a headset, headphones or speaker will not connect automatically to your Huawei phone, the devices have likely never been paired before. Bluetooth accessories only reconnect on their own once an initial pairing has been completed and saved on both sides. Without that first pairing step, your phone will not recognize the accessory even when it is turned on nearby.
Enable or Disable Bluetooth Contact Sharing
When your Huawei phone connects to a car stereo or infotainment system, the paired device sometimes cannot show or dial your saved contacts. This usually happens because Contact sharing for that specific Bluetooth connection is switched off, so the car system never receives your address book. Voice commands like 'call John' then fail even though the phone shows as connected.
Set a Monthly Data Limit
If mobile data keeps running out before the month ends, your Huawei phone probably has no monthly limit configured yet. Without a limit or warning threshold, EMUI lets data usage climb unnoticed until you hit your carrier cap. A fixed start date also matters, since usage tracking otherwise resets on the wrong day compared to your billing cycle.
Switch Data Connection During Calls On or Off
On a Huawei phone with dual SIM, a VoLTE call can knock your mobile data offline if the wrong SIM is left carrying the connection. The Switch data connection during calls option moves data traffic to the other SIM automatically so browsing keeps working while you talk. If this setting is off, apps in the background may stall or lose connection the moment a call starts.