This icon simply means that there are more notifications to show, but there isn't enough space left in the top status bar to show all notification icons (that's why it doesn't have a matching notification).
This means that you only have priority notifications enabled. Pressing a volume button will allow you to select different notifications which show/make a sound.
There is a choice between no notifications, all notifications, and priority notifications, which can be changed by pressing a volume button. Going into Settings/Sound & notification allows you ...
It means that you have NFC enabled. Some manufacturers (LG and HTC, I know for certain) have started adding an icon to let you know that you have NFC enabled since it can have potential security implications related to mobile payment systems. It would also be useful to know if you intend to use features like Android Beam.
If you'd like to get rid of the ...
It's supposed to represent a hearing aid, and it means that Hearing Aid Compatibility is enabled.
It should go away if you go into the call settings and disable the hearing aid option. It'll either be something like Settings->Calls or pressing the Menu button on the dialer to get into the call settings (I think it varies some).
Supporting source, second ...
That's a notification originating from the Data Saver feature in Huawei ROMs (EMUI 5.0).
Data saver helps to reduce data usage by preventing background apps from sending or receiving data and limiting the data access frequency of running apps.
When data saver is active, a data icon with a leaf will appear in the
status bar. This may prevent users from ...
You need to investigate this on your own. There's a generic way to do this:
There are at least 4 possibilities:
If the phone has Android 4.1 or later you can long press the notification and see the App info:
Look that App icon up in the list of installed apps on the phone
Just click it and see what app starts
Go to the ...
You are (not) in trouble. Or at least you cannot tell anymore by simply taking a look at the notification bar. With Android 4.4 (KitKat) came a few design changes; one of them was to turn those notification icons permanently gray, officially to be "less distracting".
So how can you tell if there are issues with your connection to the Google servers? ...
Interestingly, you don't need an app to hide those notifications. You can go to the App Info screen for an app and uncheck the "Show notifications" option. There are a few ways to get to the App Info page for an app.
On some launchers, you can drag the app out of the drawer, and onto an "App Info" area.
Likewise, on some launchers, you can long-press the ...
On Android Marshmallow, you can use the hidden System UI Tuner.
Open the quick-setting panel, then press and hold the Settings' cog wheel until it starts spinning. You then get an additional settings entry in System > System UI Tuner > Status bar, where you can hide the alarm.
These behaviors can be controlled when an app builds a notification.
From my understanding, if an app wants to run continuously, it MUST put a persistent notification on the notification bar
You're pretty much correct until the "notification bar" part. Both of notifications are indeed persistent (i.e. on-going, cannot be removed manually by user). Take ...
That symbol isn't Android-specific: it's the symbol for a hearing aid induction loop. Some landline telephones have an induction loop that transmits the phone audio directly to the hearing aid, so that hearing aid users can hear the phone call better than they would otherwise. The T stands for "telephone": because the induction loop system originated on ...
For the Galaxy S3, this indicates that the telecoil mode (aka T mode or electromagnetic coupling) is active. As eldarerathis mentions, this is a type of Hearing Aid Comparability. It involves using the speaker coil in a specific manner to inductively couple with a compatible hearing aid.
In this mode, the hearing aid shuts off its microphone and ...
It means that you (might be accidentally) set the "Interruption Mode" to "None". It means that no calls & notifications will be shown, and not even alarm will ring.
This is part of Interruption Mode, a new feature in Android 5.0 Lollipop. You can access this setting from Settings - Sound & notification - Interruptions - When calls and notifications ...
It means you have interruptions disabled. When your device is in this mode, you will not receive any visual, audible, or vibration notifications except for alarms you've explicitly configured to be allowed.
On vanilla/Google Android, this setting can be found in the "Sound & notifiation" category, but ASUS may have moved it elsewhere. Alternatively, if ...
Based on reddit (and I have tested it myself), apparently it's a feature of Nova Launcher on Android 6.0 Marshmallow called "Dark icons". It seems it's enabled by default for existing users after updating the app (on my case, new installation will have to turn this setting on manually).
The setting can be checked on Nova Settings - Look & feel - Dark ...
VoLTE means Voice over LTE. The icon notifies you that you are now able to phone over LTE. This means, it's not necessary in order to make a phone call to switch back to 3G (You cannot phone over normal LTE).
In short it's new and better. As far as I can tell you could disable VoLTE altogether, but I recommend you to simply live with it.
In Android 5.0 (at least in the CM12 Unofficial builds) you can go to Settings -> Privacy
From there go in to Filter Notifications. Clicking on an item will allow you to see when it was last blocked and remove it from the list.
According to the Xperia Z manual, that icon indicates that "Stamina Mode" is active.
I don't see it in the Xperia T manual, so I'm guessing that there was a recent update to your device that added that feature.
The small house icon is an indicator that you're connected to a Verizon Network Extender.
Click to enlarge source:androidcentral
They are primarily used for people that want to have Verizon Wireless service in their house, but there is no or very little network coverage in their area. They purchase the Network Extenders that hook up to their ...
In short, it indicates that for the mobile calls the wifi will be used, if there's a good wifi signal.
I have found it there:
Small phone with Wi-Fi coming from it
This strange new symbol shows your phone’s set up for Wi-Fi calling. It’s a new feature brought in by the UK’s biggest networks to help give you the best call quality. If your phone doesn’...
That's DND (Do Not Disturb)
DND is a feature which after enabling you aren’t disturbed by
notifications or other forms of incoming communication. Do Not
Disturb(DND) can be set automatically or manually based on a few
parameters that you control.
One way to disable DND is to drag down your Notification Panel and select DND from the different ...
This method does not work on Android 2.2.
Tested on Kitkat Android 4.4.2
Long press the notification and select App info.
It will take you to the settings app and show the details of the app the notification comes from.
A long press shows you the name of the application instead of the notification.
According to the official design guide, notification icons are supposed to be white only.
Some apps do break the rules, so perhaps it's just that you had an app that used to have colourful icons but was updated to bring it into line with the rules.
This icon seems to be some "user is active" icon that notifies you when the device captured you looking at the phone, but not actively using it.
There is a similar icon I know from my Samsung device that is meant to do this. It will prevent the display from becoming dark/locking the device so you can read your article, book etc. without tapping on the ...