bb 9900 red blink

8. bb 9900 matot solution ukn0wz. kpop red velvet Hi everyone Few hours ago I taked my Bold 9900 battery off to put another SIM (I turned off my Bold, then took out battery) 5 minutes late I set my SIM card and my battery back to my BB Bold 9900, red light turn on as usual but then nothing happened The problem is: My Blackberry Bold 9900 won't turn on