[G3 Android Development] locomia:
please help a dumb instruction-follower

Hello, people! I hope you are well!

I am a newbie to all this stuff, so I screwed everything here and newd some help.

First, after lots of problems, finally my motherboard was condemned by the authorized tech support.

I could just put the phone away to trash, but nooooooo!!! I really like this phone, and decided to buy another (expensive) mobo, here in a brazilian-ebay-like-website and install it by myself.

The mobo arrived, I installed it, it seemed everything ok, and once I put on the wi-fi, it started to upgrade and update everything on stock rom..

I even tried GPS, because one of the problems on the other mobo was the GPS. But I did not made as simple call with it, so I unfortunatelly did not test the microphone on a call at this time.

After updates and after sd card inserted and some updates restored, I notice the system became, again, not fluid, unstable, and decided to dive into the woderful world os MODifications.

IN 2 days I leardned and installed TWRP and CYANOGENMOD 12 (latest elease version). Everything was FINE, and the system is really awesome.

BUT - the microphone was not working on calls (the person does not hear me), and neither in the sound recorded. It just recorded an 1-second noise and became mute.

When Turning on the hands-free mode, the person at the other side could hear me, and recording videos, the sound was recorded well (with a little bit eco)

With this symptom, and without similar cases on the web, I thought it could be a software problem (remember- I did not test it firsto on STOCK when I installed the board)

I then installed the latest Nightly CM14 via TWRP, and got the same problem.

Don´t go away! It´s now when the thing goes really bad...

I found a post from a guy with the same problem, and he fixed it installing back the stock ROM.

So I found THIS TOPIC HERE, and another post, also here in XDA, with a link to the 30J BUMPED ZIP rom for TWRP, and downloaded it first

Then I (very stupidly) followed the steps of this post, wich were specifically intended for the 30B, and installed the 30J instead.

So I did install via TWRP, in this order:

1- modem (from this topic)

2-boot (from this topic)

3- system (bumped 30J from here: http://xdaforums.com/lg-g3/development/stock-t2961073)

4-supersu (from this topic)

Yes, it was stupid not to follow exactly the recipe on this topic. Before one asks, I did this just because I already has the 30J zip, and the 30B was about 1-hour to finish the download, and I was anxious to do something to put it to work soon.

I neither can assure the microphone problem was a hardwAre problem to reclaim to the seller, because I did not test it on stock, and now it´s bricked. And the 30-day deadline to reclaim is about to finish...

It does not boot, it stays forever in the first LG logo screen (without the shiny animation), an the lights aside the camera keeps turning green and blue forever.

It also does not enter the TWRP: when I try it, it show the LG logo and shutdowns. I guess I screwed it when I flashed the boot, am I right?

LGUP does no detect the model, so cant do anything

LG Flashtool stops responding when I click START or READ PHONE INFORMATION buttons

What could I do now, if not sit down and cry?

Please help!

Regards, Anderson