By default, the iPhone will auto capitalize the beginning of sentences for you as you type, but what if you are one of those annoying people who likes to write in all CAPITAL LETTERS? Odds are you’ve found that having to constantly hit the “shift” arrow before each letter has drastically slowed down your typing speed and your ability to send “loud” text messages and e-mails.
Well, luckily for you there IS a way to enable Caps Lock on the iPhone’s keyboard, and it’s pretty easy.
Step 1: Go into Settings> General> Keyboard and be sure that the “Enable Caps Lock” switch is set to “ON”.
Step 2: Now open Mail or Notes and start typing. A single press of the “shift” arrow will give you the regular 1-letter capitalization, but if you double-tap that arrow, it should now turn BLUE, indicating Caps Lock is active. Tap again to turn Caps Lock off. (Note: switching the keyboard over to numbers or symbols will turn Caps Lock off as well).