Yeah that's the first thing you're gonna want to flash. But know that when you flash 5.0.2.8 you won't be able to restore that backup you made using 5.0.2.7. And after you flash go to advanced in cwm and choose to reboot recovery so it can show the updated cwm. Now before you install monster 5.3 you have to :
- wipe data/factory reset
- go to advanced and wipe dalvik cache and battery stats
- go to mounts and storage and format /data and /cache and then format /system. Make sure you format /system last to avoid errors.
You're gonna have to do this everytime you want to flash a custom rom to make sure you don't brick your phone. Now to install monster 5.3 you:
- go to install zip from sdcard
- choose zip from sdcard
- and then select the monster 5.3 zip
Wait for it to get done flashing and then go back and choose reboot system now and you're good to go! if it goes back to the cwm screen just choose reboot system now again. Now for some extra stuff you should know. Monster 5.3 has beats installed and it makes your phone louder than stock. If you decided you don't like it you can download and flash this to remove it :
http://openzio.rtrnetwork.com/openzio/openvitality/Beats-Removal-EH29-Spz0.zip
Also when you set up your gmail account for the first time give the phone about 15mins before updating or downloading anything from the play store as to avoid the 492 error that doesn't let you download anything from the store.
Hmm i guess that's about it. If you follow all my instructions you shouldn't run into any problems.