There are times when we regret a message that we have just typed and pressed send, and in the next second we feel the need to change something out of it, or when we have mistakenly tapped Send. There is genuinely no apparent way outlined to cancel a message that you have sent a while ago but there is a trick that you can follow to cancel a message that has already moved to Sending mode. This trick is also workable when there is a text stuck at sending due to congested network condition or due to irresponsiveness of your OS.
Like I said earlier, it is not an official way to cancel a message but just a trick that will do the purpose. To cancel a message there are certain conditions that must be met if you expect this trick to work. For instance, the message has to be in Sending mode i.e. sending is in progress under your Contacts chat thread. You can also see a blue bar at the top displaying the status of message being sent. This is when you can use this trick to cancel the progress. This trick can work on only iOS devices or iPads.
Step 1: Open the Message app and then open the thread from which you want to cancel a message. If you have sent a group message or sending different messages to multiple users at a same time then this trick will cancel sending messages to all of them altogether
Step 2: Once there is a blue bar on display at the top, this is when you have to strike. Flip open the menu from the bottom of your screen to open Control Center
Step 3: Tap the airplane icon on the flip down menu which represents Airplane mode. This will enable the Airplane mode and will seize all the connectivity of your phone in terms of cellular, Wi-Fi, or Radio. Halting the cellular connectivity will also stop your message from sending
Step 4: Wait for a minute or two, and then disable the Airplane mode by tapping the airplane icon again. Wait until your phone maintains connectivity and open the Messages app. If you see a red warning text saying “Not Delivered” with a warning exclamation mark then congratulations, your message had been canceled by Airplane mode.
If the text message says “Delivered” then this means that you lagged a bit and message has been sent already before you enable the Airplane mode. Lagging is not always the reason; sometimes the data size of a message is too small that it takes a while to send it on air before you even open the flip menu. You need to move swiftly between your Messages app and Control Center to excel this trick.