This Galaxy S21 how-to guide first explains the differences between Galaxy S21 status icons and notification icons, then explains the meaning of Galaxy S21 status icons and notification icons you may find in Galaxy S21, S21+, and S21 Ultra.
Because Samsung uses slightly different icons in different regions or for some carriers, you may get Galaxy S21 status icons and notification icons that are different from those shown in this guide. This is normal. If you cannot figure out the meaning of those icons, you may share the screenshot on our FaceBook page so that the community can help you identify them.
Update: Android 12 update for Galaxy S21 (S20 and S10) brought a new camera and microphone indicators icon when the camera or microphone is accessed.
Like all other Android phones, Galaxy S21 use the top part of the screen as the status bar to display some icons indicating the system status, alerting you about possible issues and notifying you about incoming notifications.
These icons are usually categorized as status icons and notification icons. It is not rocket science. In fact, it can be arbitrary for some icons.
Traditionally, Galaxy S21 status icons refer to the icons telling you the phone status (e.g., mobile network status, WiFi status, battery percentage, or battery charging status). They are typically displayed on the right side of the status bar and aligned to the right side of the screen on Galaxy S21.
On the contrary, Galaxy S21 notification icons refer to icons telling you that you have a notification. So, unlike Galaxy S21 status icons, Galaxy S21 notification icons usually have a corresponding notification message in the notification panel. Galaxy S21 notification icons are always shown on the left side of the status bar, as shown below.
Since Android 9, Google has moved the time to the left side of the status bar. The notch or the punched hole for the front camera usually are located in the status bar. So, the space for notification icons becomes very limited.
To avoid the overcrowded notification icons, Galaxy S21 allows you to customize how the notifications are shown (none, all notification icons, the 3 most recent icons, or just the number of notification icons) in Settings — Notifications — Advanced settings — Show notification icons.
The differences between Galaxy S21 status icons and Galaxy S21notification icons include:
Please note, Galaxy status bar (and therefore notification icons and status icon) is always on the top of the screen. So, it changes location (3 directions) with the phone orientation. This is different from the navigation bar (and navigation buttons or swipe lines), which are fixed in Galaxy S21 even you change to the landscape orientation.
Also, on the Galaxy S21 lock screen, there are no notification icons on the status bar. Instead, the carrier name will be shown on the left side of the status bar.
In this guide, Galaxy S21 status icons and notification icons are grouped into the following 7 groups:
Please note, for the notification icons of third-party apps, it is up to the app developers to choose notification icons, which can be substantially different from the app icon. So in this guide, we will mainly cover notification icons from pre-installed apps on Galaxy S21.
This Galaxy S21 status icon indicates the strength of the mobile signal in your area. The strength is illustrated by the number of bars. A strong signal usually corresponds to a better connection/reception.
As explained in the Galaxy S21 SIM card guide, you can get the actual signal strength (in dBm) in Settings – About phone – Status – SIM card status. It was explained in detail on this page.
Please note eSIM works like a normal physical SIM card. The signal strength will also be shown as other SIM card. Please check this guide on eSIM support on Galaxy S20 and S21.
This Galaxy S21 status icon indicates there is a mobile network in range. But Galaxy S21 failed to register onto it.
When you see this icon, you may try to reboot the Galaxy S21 and wait a while to see whether your SIM card can register to any networks automatically. If the problem persists, you should contact your carrier to check whether your SIM is activated or not or the mobile signal coverage in your area.
Another possible cause of this icon is the improper mobile network mode settings. You should try to use auto-connect in Settings — Connections— Mobile networks — Network mode for SIM1 (and 2).
The status icon indicates your Galaxy S21 is roaming to a partner’s network, not in your carrier’s own/home network. The charges for voice and data are usually more expensive than using your carrier’s own network.
By default, mobile data roaming is disabled to help you avoid expensive mobile data charges in a guest network. You can enable/disable data roaming in Settings — Connections — Mobile networks — Data roaming.
This Galaxy S21 status icon means the phone fails to register with any mobile networks in that area. Therefore, you cannot use any mobile network features: you cannot make or receive calls; you cannot use mobile data.
The problem may be caused by:
You have to call your carrier to solve the issue if you get this icon persistently.
This status icon indicates your Galaxy 21 is in flight (aeroplane) mode.
Under flight mode, all connections including, WiFi, mobile network, and Bluetooth, will be turned off by default.
You can turn on WiFi and Bluetooth connections on Galaxy S21 manually in the flight mode. But you cannot turn on the mobile network (data or voice) under flight mode.
Nowadays, most airlines do not require you to power off Galaxy S21 during flight. But you should use the flight mode if the smartphone is allowed during the flight (normally during cruising). When the aeroplane is taking off or landing, normally, you are to power off the phone.
This Galaxy S21 status icon indicates that the phone is connected to the mobile data network in the GPRS (General Packet Radio Service) mode, which is a type of 2G mobile data connection and the slowest mobile data connection. Such a mobile data connection is only good for checking emails or downloading MMS. It is too slow for web browsing.
If your mobile plan includes 3G data, 4G LTE data, or 5G, but you often get this Galaxy S10 status icon, you may check with your carrier on the 3G, 4G, and 5G network coverage in your area.
The status icon indicates your Galaxy S21 is using a 2G EDGE (Enhanced Data Rates for GSM Evolution) mobile data connection. It is normally faster than GPRS. But it is still a 2G connection, which is normally slower than a 3G or 4G data connection.
If your mobile plan includes 3G data, 4G LTE data, or 5G, but you often get this Galaxy S21 status icon, you may check with your carrier on the 3G,4G, and 5G network coverage in your area.
This Galaxy S21 status icon indicates the phone is connected to a UMTS network. It is generally faster than GPRS and EDGE connections.
HSPA and HSPA+ are usually considered as 3G connections (using 3G network infrastructure). But they have their own status icons on Galaxy S21.
HSPA (High-Speed Packet Access) is considered as mobile “broadband”. The typical speed is about a few Mbits per second. In some regions, it may be referred to as a 3.5G network.
The connection speed is typically faster than the 3G UMTS connection.
HSPA+ (Evolved HSPA) is the fastest 3G data connection you can get currently.
In some regions, HSPA+ is marketed as 3.75G or 4G (3G in nature, actually). The typical speed of the HSPA+ network is about 10-20 Mbits.
Depending on your region and carrier, you should see only one of these two 4G LTE status icons.
LTE (Long-Term Evolution) and LTE+ are usually called 4G in most regions.
Unlike 3G, HSPA, and HSPA+, the frequency (band) of 4G LTE in different regions (and different carriers) differs dramatically. When you travel to other areas, you may find your Galaxy S21 is limited to 3G or HSPA or HSPA+ network. This is normal because the radio frequency used in that region for LTE maybe not activated in your Galaxy S21.
Although the Galaxy S21 supports all LTE bands, in each region, some bands were disabled in the firmware. So, you should buy Galaxy S21 for your region so that you can use all available bands in your region/carrier.
This Galaxy S21 status icon means the phone is connected to a 5G network.
5G is the successor of 4G LTE. It is the latest cellular network technology with faster speed, lower latency, and higher throughput.
In most regions, Galaxy S21, S21+, and S21 Ultra support the 5G network. You can find the big letters of 5G on the outside of the Galaxy S21 box if 5G is supported in your region.
You may check this guide for the technical details of 5G, 5G NSA, 5G SA, 5G mmWave, 5G Sub-6, and 5G NR.
This Galaxy S21 status icon indicates Galaxy S21 is connected to a 4G LTE network, although the 5G network is available. The issue is usually temporal.
This Galaxy S21 status icon indicates some value-added services of the SIM card were enabled.
The SIM card toolkits depend on individual carriers. You should also find a new app icon (e.g., SIM toolkit) on the Galaxy S21 Apps screen.
When you use two SIM cards in the dual-SIM version of Galaxy S21, you have the option to set a preferred SIM card for outgoing calls in Settings — Connections — SIM card manager — Calls.
If you set the preferred SIM card as SIM card 1, the SIM card icon with the number “1” will be shown in the status bar. If you set it to SIM card 2, the icon will have the icon for number “2”. If you set it as Ask always (i.e., no preferred SIM card), the first icon shown above will be used in the status bar.
This icon only appears in a few carrier models of Galaxy S21.
This Galaxy S21 status icon shows up on the status bar after you enable data saver in Settings — Connections —Data usage — Data saver.
The icon is different from the date saver icon in stock Android. Samsung started to use this data saver icon in the Android Oreo update.
In this section, we will cover Galaxy S21 status icons and notification icons related to phone calls and sound mode settings for Galaxy S21, S21+, and S21 Ultra.
This Galaxy S21 notification icon appears on the left side of the status bar when you are called (before picking up the call) or during a call (after accepting the call).
This Galaxy S21 notification icon means there is a (or more) missed call.
You can check the caller info through the notification panel. You can also find detailed info on the missed calls in the history panel of the Phone app on Galaxy S21.
The Galaxy S21 call forwarding notification icon indicates phone calls are currently diverted/forwarded to other numbers or voicemail.
You can set call forwarding in the Phone app on your phone. Alternatively, you can set up call forwarding through your carrier’s support lines directly.
Call forwarding is a mobile network feature provided by your carrier. Although the service itself may be free in most carriers, your carrier will charge the airtime for the forwarding. When you are roaming abroad, the expensive international calling rate is usually applied for forwarded calls. So, be mindful when you use call forward (divert) when roaming.
Please note, when you use two SIM cards on Galaxy S21 (dual SIM version only) and enable dual SIM always on under Settings –Connections — SIM card manager, call forwarding and call waiting (on-hold) will be enabled automatically.
You can place the current call on hold and accept another call. Thus you can talk to the first caller after you finish the second call.
This Galaxy S21 notification icon reminds you of the existence of an on-hold call.
You also need to use the call on-hold feature when you initiate a conference call.
Please note, some carriers may not support this feature.
This Galaxy S21 status icon indicates your Galaxy S21 uses the VoLTE for voice calls.
VoLTE (voice calls through 4G LTE work connections) is a carrier-dependent feature. It usually offers better voice quality and faster connecting.
By default, VoLTE is enabled in Galaxy S21 if your carrier supports it. Normally, you should not disable it. But if you want, you can disable or enable it in Settings — Connections — Mobile networks — VoLTE calls.
There is also a VoLTE button for you to quickly enable or disable VoLTE calls in Galaxy S21 quick setting panel.
This Galaxy S21 status icon indicates you set the phone in do not disturb (DND) mode.
In the DND mode, you will get very limited distractions from Galaxy S21. Most notifications and calls will be silenced.
You can instantly enable or disable the Do Not Disturb mode using the button in Galaxy S21 quick settings panel.
During a call, you may occasionally want to mute the microphone. Once the microphone is muted during a call, you will see this notification icon in the status bar.
In some regions, this button was removed in Galaxy S21, and therefore you have to check the mute button in the Phone app to determine the status of the microphone.
Whenever you get a new voicemail message, you will see this Galaxy S21 notification icon in the status bar.
In most regions, you can tap and hold (long tap) button 1 in the dialer of the Phone app to access your voicemail box to check the new messages. A few carriers may ask you to dial a special code to access the voicemail box.
Unlike SMS messages, voicemail messages are NOT saved on the phone. They are saved on your carrier’s server. That’s why most carriers only allow a certain number of messages in the voicemail box.
The alarm ion alerts you that there are one or more incoming alarms.
You can find and manage all alarms in the Clock app.
Galaxy S21 has three sound modes:
This Galaxy S21 status icon indicates the phone is in silent mode: no sounds and no vibrates for all calls and notifications.
In the silent mode, you can still play media files and listen to music.
You can change the sound mode in Settings — Sounds and vibration — Sound mode.
This status icon indicates that your Galaxy S21 is in vibrate mode.
In this mode, when you get calls and notifications, Galaxy S21 will not play the ringtones or notifications sounds. Instead, the phone may vibrate depending on other (vibration) settings.
When you connect any external speakers or audio output devices to Galaxy S21, it is possible to route the sound of each app to different sound devices.
The Galaxy S21 separate app sound icon indicates you set up separate app sound for at least one app, and it is active now.
You can set up Galaxy S21 separate app sound in Settings — Sounds and vibration — Separate app sound.
The following Galaxy S21 status icons and notification icons are related to WiFi network, Bluetooth and NFC connections in Galaxy S21, S21+, and S21 Ultra.
The WiFi in range status icon usually indicates there are some unknown WiFi networks. You can open the WiFi settings to scan the available networks.
This Galaxy S21 status icon appears if:
You may check what available WiFi networks (Settings —Connections — Wi-Fi) and choose the one you can access.
This Galaxy S21 status icon indicates the phone is connected to a wireless network. But there is no internet connection.
Usually, the problem lies on the router, not on your Galaxy S21. You should check router settings or the internet connection to the router.
In some regions, the exclamation icon ( !) may be replaced with a cross (x).
This Galaxy S21 status icon indicates the phone is successfully connected to a WiFi access point.
If there are any data transfers, the two arrows should flash/animate.
This status icon indicates you enabled the smart network switch in Galaxy S21.
Occasionally, the WiFi network connection maybe not stable, and the connection becomes too slow.
But by default, the mobile data connection will not be used because WiFi is connected. In this case, you have to turn off WiFi to use the mobile data connection.
Smart network switch allows you to switch to the mobile data connection automatically when the WiFi connection is unstable or too slow.
By default, the smart network switch is not turned on for Galaxy S21. You can turn it on/off in Settings — Connections —WiFi — menu (3 vertical dots)–Advanced —Switch to mobile data (under intelligent WiFi).
Galaxy S21 allows you to share WiFi connections with other devices. This Galaxy S21 status icon will appear when you share WiFi connections.
WiFi sharing can be enabled in Settings — Connections — Mobile hotspot and tethering — Mobile hotspot — Configure — Advanced — WiFi Sharing.
When you enable hotspot to share your mobile data connections on your Galaxy S21, you may see one of the notification icons depending on your region and carrier.
In some regions, the notification icon can be different.
A few carriers may also disable hotspot features in their versions of Galaxy S21. Some carriers may even disable hotspot for some mobile plans.
This USB tethering notification icon appears when you share the mobile data connection on Galaxy S21 through a USB cable.
In some regions, the colour of the icon is inverted.
This Galaxy S21 notification icon indicates the phone is connected to a VPN service.
This Galaxy S21 status icon appears when you enable Bluetooth or connect to Bluetooth accessories.
The colour of the icon may change depending on the status of Bluetooth (enabled or connected).
This status icon appears when you enable NFC on Galaxy S21.
In most regions, on Galaxy S21, the NFC icon is not shown even if NFC is enabled. This is normal.
Some Galaxy S21 accessories may depend on NFC. For example, the Galaxy S21 LED wallet cover, LED back cover, and Clear View (S-View) Cover need the NFC to draw power from the phone.
This icon appears when you are casting from Galaxy S21 to a Chromecast device or a Google Home device.
Galaxy S21 fully supports Android screen mirroring (screencasting). You can duplicate the display and sound to supported Chromecast or Google Home devices. But individual apps may support Chromecast in different ways (e.g., this one). In this case, you can cast the app, instead of the whole phone, to the Chromecast/Google Home device.
The Galaxy S21 status icons and notification icons in this section are related to USB connections in Galaxy S21.
The USB-C port in the bottom of Galaxy S21 (see Galaxy S21 layout) is often referred to as a multipurpose port. You can charge the Galaxy S21 battery through the port.
You can also connect many USB accessories to the phone through this port. For example, you may connect a USB thumb drive (or even a portable USB drive) to Galaxy S21 to transfer files or migrate to Galaxy S21. Or you can connect a USB-C to Ethernet adapter to connect to an Ethernet port.
Another common usage of the USB port is to connect Galaxy S21 to a PC or a monitor. For example, you can use Samsung DeX on a PC or on a standalone monitor.
This Galaxy S21 notification icon appears when you transfer data from or to the phone through USB.
For example, when you insert a USB thumb drive (e.g., SanDisk Ultra Dual Drive) to Galaxy S21, you will see this notification icon.
When you connect an unpowered device to the USB port, Galaxy S2` will power it up and connect to it.
But if Galaxy S2` fails to power it up for whatever reasons, this notification icon appears.
You may try to reconnect the device or accessory again. Some accessories may require an external power source. In this case, you need to connect the external power source to the accessory before connecting it to Galaxy S21.
This Galaxy S21 notification icon indicates there are some unknown failures when trying to connect to a USB device.
You can use a USB-C to Ethernet adapter to connect Galaxy S21 to a wired network.
When Galaxy S21 is connected to a wired network, you will see this Galaxy S21 notification icon on the status bar.
At the same time, you should see the Ethernet status icon (the second one) on the right side of the status bar.
Galaxy S21 status icons and notification icons in this section are related to the Galaxy S21 battery.
The battery level icon gives you quick info on the battery capacity left so that you can know when to charge the battery.
By default, the exact percentage of the reading is not shown on the Galaxy S21 status bar. You can enable it in Settings — Notifications — Advanced settings — Show battery percentage.
This status icon indicates you are charging the Galaxy S21 battery. You can charge it through a USB cable or using a wireless charging pad, as explained in this guide.
Enhanced processing is a new feature of the Android 11 update for Samsung Galaxy phones.
Please refer to this guide on what enhanced processing is and how to use enhanced processing on Galaxy S20 and S21.
This Galaxy S21 status icon indicates the phone is running in the power-saving mode. It will use less battery than the default optimized mode to achieve long battery life.
On Galaxy S21, the power-saving mode can be used together with enhanced processing.
This status icon tells you that there are some unknown problems with the Galaxy S21 battery.
You can try to connect the phone to a charger or reboot the phone to see whether the icon is gone.
If the status icon appears for a long time, and you cannot get the normal battery icons, you may try to back up your data and send the phone for repair/check.
This status icon indicates wireless PowerShare is activated, and therefore you are charging other devices with the Galaxy S21 battery.
If your Galaxy S21 battery level is lower than 30%, and it is not connected to a wall charger, then you cannot use wireless PowerShare by default. You can raise this limit as explained in this guide (for Galaxy S20 and S21).
Please check this guide on how to use the wireless PowerShare on Galaxy S10, S20, and S21.
This notification icon indicates an abnormal level of moisture is detected in the USB port.
When this icon appears, you cannot charge the Galaxy S21 battery through the USB port. You have to charge the battery with a wireless charging pad.
The moisture detected problem has nothing to do with waterproofing. The moisture sensor is in the part that is allowed to contact water. The icon only reminds you that the exterior part of the USB port has a higher-than-expected moisture buildup.
In some cases, the moisture problem can be caused by the weather or an oversensitive moisture sensor.
This icon does not say anything about what happened inside the phone.
Please refer to this guide on how to solve the moisture problem in Galaxy S8, S9, S10, S20, and S21.
Galaxy S21 status icons and notification icons in this section are related to system services or components, for example, storage, sync, and location services.
This Galaxy S21 status icon indicates there are some severe system errors on your phone.
You should try to back up your data as early as possible if you see this icon.
You may try to reboot the phone and/or clear the cache partition to see whether the icon disappears.
It is better to visit the local Samsung service centre to check Galaxy S21 if you consistently get this status icon.
This Galaxy S21 status icon tells you that you are out of internal storage in the Galaxy S21.
The performance of the Galaxy S21 will degrade when you see this status icon. You should clean up some files to free up the internal storage space.
You can check storage usage in the My Files app. Device care can help you to clear some unnecessary files.
Please note, none of the Galaxy S21 models supports a micro SD card. You can transfer your files to the cloud (e.g. Google Drive, or One Drive) or a USB thumb drive.
This Galaxy S21 status icon appears when location service is accessed by an app.
You probably should not disable location service because many apps rely on it.
On Galaxy S21, you can turn on/off location service for each app individually and allow the app to access location service only when you are using the app (i.e., block the background access).
This Galaxy S21 status icon indicates some certificate info problems or some actions are required.
You may check the notification in the Galaxy S21 notification panel.
This Galaxy S21 notification icon reminds you that some actions are required for Galaxy S21 lock screen settings.
You may check this guide on how to use and customize the Galaxy S21 lock screen.
This Galaxy S21 status icon is only available in selected regions. It indicates Galaxy S21 is in driving mode (car mode).
By default, the car mode is not pre-installed in Galaxy S21. You need to install it in Galaxy Store.
This status icon indicates some errors were encountered when syncing the data on the Galaxy S21 with the Samsung server or Google Drive.
The problem can be caused by the remote server, or internet connection, or the phone.
If you get this status icon frequently, it is better to check the sync details of each account in Settings —Cloud and accounts — Accounts.
This Galaxy S21 status icon appears when data are being synced. The icon may be animated as well.
It is essential to back up any critical data in Galaxy S21. You can back up most of the data to Google Drive. Photos can be automatically backed up to Google Drive if you enable it in the Google Photos app.
This Galaxy S21 notification icon indicates the smart view is active.
Samsung Smart View is an app bridging Samsung phones and Samsung TVs so that you can easily cast contents on Galaxy S21 to the TV. But it only works with Samsung TVs.
When you download a file on Galaxy S21, you will see the animated version of this notification icon.
Once you finish the download, the icon will not animate.
By default, the downloaded files are saved in the Downloads folder in the phone storage.
This Galaxy S21 notification icon indicates uploading operations, i.e., transferring files from Galaxy S21 to other devices or the internet.
Galaxy S21 secure folder allows you to run one additional private copy of any apps. You can hide apps and private files in a secure folder as well.
Please check this guide on how to use the secure folder on Galaxy S21, S20, S10, Galaxy S9, and S8.
Galaxy S21 status icons and notification icons in this section are related to messages: text messages, chats, and emails.
This Galaxy S21 notification icon indicates there are one or more new text messages.
In most regions, MMS uses the same icon for the notification.
This Galaxy S21 notification icon is used in a few regions.
This Galaxy S21 notification icon indicates you have some new emails in the Gmail app.
You can set up some non-Google email accounts in the Gmail app. So this Galaxy S21 notification icon does not necessarily mean new emails in a Gmail account. Rather it means there are some new emails in the Gmail app.
This notification icon is for the Samsung Email app. It notifies you that there are some new emails in the Samsung Email app.
This notification icon indicates there are more notifications than what is shown in the status bar.
On Galaxy S21, you can customize the notification icon style to show the recent 3 icons, or all icons, or the number of icons. If you choose to show the most recent 3 icons (default), and there are 4 or more icons, you will see the dot icon. similarly, if you choose to show all icons, but the space is not sufficient to show all of the notification icons, you will also see the icon.
Please refer to this guide (coming soon) for details.
This notification icon appears after a screenshot is taken. You can check this guide (coming soon) on how to take a screenshot on Galaxy S21 and use the screenshot toolbar.
This notification icon indicates the number of notifications. It appears only if you customized the notification icon style as the number of notification icons.
Galaxy S21 dual messenger allows you to have two accounts of the supported messenger apps (e.g., WhatsApp, Facebook Messenger, WeChat, Telegram, Viber…) and Facebook accounts in Galaxy S21.
You can use these two messenger accounts simultaneously on Galaxy S21. You can even use these two accounts side-by-side in the Multi Window mode.
Please refer to this guide on how to use dual messenger on Galaxy S21, S20, S10, S9, and S8.
If you have any questions on the meaning of status icons and notification icons on Galaxy S21, S21+, and S21 Ultra, please let us know in the comment box below.
The community will help you get the answer.
If you have any questions on using Galaxy S21, you may check our detailed step-by-step Galaxy S21 guides:
You can also post questions or share your thoughts on our Facebook page.
The official Samsung Galaxy S21 user manual (PDF) in your local language can be read and download here.
If you want, you can drop us an email on the contact us page.
Enjoy your Galaxy S21.
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Hello,
Thanks for this. I can't believe they don't explain these status symbols in the manual.
I have one question. My S21 Ultra, when connected to a stable Wifi connection, continuously shows the 5G symbol appear and disappear seemingly at random. It may be gone for hours and then back for hours, or it may cycle in and out every few seconds, etc. Data isn't transmitted over it (it is the not bolded 5G symbol), and wifi calling is enabled and continues to work fine so I know there is no issue with the wifi connection.
Usually on Android it only shows the symbol for the active data source - so the wifi symbol only if on wifi. I can't figure out why the 5G symbol keeps coming in and out at random when I'm on wifi.
Thanks for any help.
This may happen if the phone is switching between 4G and 5G, although mobile data are not used. 5G signal usually is not as consistent as 4G.