Originally Posted by Bloodawn
Wat? you sure your battery didn't die bro? Installing a theme through the theme manager isn't going to brick a phone, I've used it and everything was fine. All it does is download a file to your sdcard that contains images and then applies it.
Could be hardware failure or your battery.
You have to enable root access, open up LBE Guard, select manage root permissions and enable it at the top. Now press back and select apps, make sure the root apps you have installed are trusted and allowed.
Here's what I did.... I opened settings I tried to wipe my sd card and it would not wipe. I tried again and it still would not erase the data so I said to heck with it and left it be. I then went to the MIUI themes and downloaded one of them and then applied it. I then pressed the power button down and selected reboot. It looked like it started to reboot but froze with only the bottom lights dimly lit. I waited for almost 10 minutes before doing a battery pull. I pulled the battery, waited for a few minutes then tried to power on.... no go. I then tried to get into CWM..... again, no go. Switched out batteries and tried again.... no go. Tried with 3 fully charged batteries so the battery is ruled out.
Looks like I've had terminal hardware failure bro which freaking SUX! LOL
The phone is on it's way to LG as we speak. Just sent it 10 minutes ago.