Volume down+home+power is download. Volume up+home+power is recovery, from where you can wipe the Dalvik cache (and the system cache, while you're there).
Be aware that when you clear the Dalvik cache, the next restart can take up to 5 minutes. The phone has to rebuild the Dalvik cache.
Oh, and you can't send an SMS longer than 80 characters. You can either send a longer SMS as multiple 80 character SMS messages (which the text app will stitch together and display as a single message) or you can send it as an MMS. Most text apps give you the choice. (Some will have a "break up long messages" option. Yes is multiple messages, no is MMS. Sending a single SMS longer than 80 characters is like having a 1500 ml liter - SMS is defined as 140 octets which, in Unicode, is 80 characters.)
11-07-2014 11:52 PM