Weak cell signal can make even a good smartphone feel frustrating. Calls may break up, messages can take longer to send, and mobile data can become painfully slow.
The good news is that you do not always need a signal booster, a new phone or a new SIM card. A few simple changes can help your phone reconnect to the network or find a better connection. These tricks work across many Android phones and iPhones, although the exact menu names can differ.
1. Turn Airplane Mode on, then off
This is the quickest trick to try when your phone suddenly shows weak service or gets stuck on a poor connection.
Turn on Airplane Mode, wait about 10 to 15 seconds, and then turn it off. This forces the phone to reconnect to the cellular network. Both Google and Apple recommend toggling Airplane Mode as a basic step when a phone has trouble connecting to a mobile network.
It can be particularly useful after moving between areas with different coverage. Your phone may have remained connected to a cell site that is no longer giving you the best connection.
If the signal does not improve, give the phone another moment to reconnect before trying the next trick.
2. Move to a better spot
Sometimes the best signal improvement costs absolutely nothing: move.
Walls, metal, concrete, underground areas and buildings can weaken cellular signals. If you are inside a building, try moving closer to a window or going outside. Google specifically recommends moving to another area or going outside when a phone cannot get a mobile data connection.
You can also try a different side of the building. Cellular coverage can vary significantly from one spot to another because your phone communicates with nearby cell towers through radio signals.
For a phone call, even moving a short distance can sometimes make a noticeable difference.
3. Restart your phone
It sounds too simple, but restarting can fix temporary network problems.
A restart forces the phone to reconnect to the cellular network and reload its network services. Google lists restarting the device among its general troubleshooting steps for connection problems, while Apple also recommends restarting when an iPhone shows problems connecting to a mobile network.
Before doing anything complicated, save what you are working on and restart the phone. After it turns back on, give it a little time to reconnect to your carrier.
If the problem disappears after every restart but returns later, that may be a sign that the issue needs further investigation rather than a permanent signal improvement.
4. Reset your network settings
If your phone repeatedly struggles with cellular connections, resetting network settings can be worth trying.
On an iPhone, the option is under Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. Apple warns that this removes saved Wi-Fi passwords along with other network settings, so you will need to reconnect to Wi-Fi networks afterward.
Android phones use different menus depending on the manufacturer. On supported Pixel phones, for example, the option is under Settings > System > Reset options > Reset Mobile Network Settings.
This does not make the phone’s antenna more powerful. Instead, it clears network-related settings that may have become problematic and allows the phone to establish a fresh connection.
5. Check your network mode
Your phone may support several types of mobile networks, and the available settings depend on the phone and carrier.
If you are having trouble with a 5G connection, temporarily using a more established network mode can sometimes help determine whether 5G coverage is the problem. The exact options vary between phones and carriers, so there is no single setting that is best for everyone.
On Android, mobile-network settings are generally found under Settings > Network & internet, Connections, or a similar menu. Google notes that network settings vary by device.
On iPhone, cellular options are available under Settings > Cellular. Apple also recommends checking cellular settings when troubleshooting service problems.
Do not change random APN settings just because you see them online. Apple warns that incorrect APN settings can cause mobile-data problems.
Which trick should you try first?
You do not need to try everything at once. Start with the simplest options and work your way down.
| Trick | Cost | Best time to try it |
|---|---|---|
| Airplane Mode on and off | Free | Phone suddenly loses or weakens service |
| Move near a window or outside | Free | Signal is weak indoors |
| Restart the phone | Free | Connection problems keep appearing |
| Reset network settings | Free | Network problems continue despite basic fixes |
| Check network mode | Free | 5G or another network type seems unreliable |
A weak signal is not always a phone problem
There is an important limit to these tricks: they cannot create cellular coverage where none exists.
If your carrier has poor coverage in a particular area, changing settings will not magically produce a strong signal. A crowded cell tower can also cause slow data even when the signal bars look good.
If the problem happens regularly in places where you normally have service, check whether other people using the same carrier are experiencing the same issue. You can also contact your carrier to check for an outage, account problem or coverage issue. Apple specifically recommends contacting the carrier when service problems continue.
Don’t trust every “signal booster” trick online
You may see advice claiming that a secret phone code, a special app or a particular setting can dramatically increase the strength of your phone’s antenna.
Be careful with these claims.
An app cannot physically make your phone’s antenna more powerful. Likewise, changing a setting cannot overcome a complete lack of carrier coverage.
The free tricks that are actually useful are mostly about helping the phone reconnect, removing temporary network problems and finding a location where the existing signal is stronger.
The bottom line
Before spending money on a signal booster or replacing your phone, try these five free tricks:
- Toggle Airplane Mode and wait before turning it back off.
- Move closer to a window or go outside.
- Restart your smartphone.
- Reset network settings if connection problems keep returning.
- Check your available network-mode settings if one type of connection is unreliable.
These steps will not increase the physical power of your phone’s antenna, but they can fix temporary connection problems and help you get the strongest usable signal available in your area. If the problem continues everywhere, the issue may be with the carrier, account, SIM or the phone itself rather than a simple setting.