: not prepared ahead of time : made or done without preparation. 1  Two of my friends came by unexpectedly, and we had an impromptu little party in my kitchen. 2  He made an impromptu speech about honor and responsibility.
Go to the existing phone jack and unscrew the cover of the jack with the screwdriver. Locate the four wires and attach each wire to its matching color. Go to the location of the new phone jack. Attach the telephone wire to the terminals inside the phone jack. They are named red, green, yellow, and black.
This guide will show you how to disable the Low Power mode to change your iPhone battery color from yellow back to either the black, red, green or white color that it typically is. This is going to result in your battery life draining more quickly than it did when Low Power Mode was enabled.