Root wanted to do cog 3.0 but cant master clear

[bword]

I know its best to start fresh and every time I click on master clear it just says Master clear started and sits there. About how long does it take for you guys?

 

[CrimsonPride]

I know its best to start fresh and every time I click on master clear it just says Master clear started and sits there. About how long does it take for you guys?

you dont master clear from download mode, you do that on the regular homescreen i think im not real sure, ive never done it. but it shouldnt take real long i dont think

 

[peachpuff]

A master clear isn't necessary, just flash back to stock jf6 and install your rom.

 

[zizzerboy]

I know its best to start fresh and every time I click on master clear it just says Master clear started and sits there. About how long does it take for you guys?

Here's how I do it:

1) Open two instances of odin
2) Click Enter download mode, click 'Start'
3) Once the phone is done and booted back up (in stock), it should automatically boot into 'MTP Application'
4) On the other instance of odin, click 'Master Clear'
5) Wait for it to boot back up

I keep the usb plugged in throughout this process.