[LG Optimus G (International)] mialslsoala:
Dear XDA Developers,

As a new member of this amazing thriving community, I tried to root my device, a first time experience for me. Being one of those people who does not exactly read manuals or instructions, I happened to learn how to do about 99% of rooting, with a fatally wrong one percent. I lost my device and have now been pressing buttons, and doing all kinds of stuff, incluing the following, teenybins, recovery mode, deleting everything (this was probably my biggest mistake as I lost my recovery). Let me start from the beginning, I originally set up a recovery with Clockworkmod's helium, and then installed Clockworkmod's ROM Manager, after thinking I had rooted my phone through command prompt. I had not. After quite a few errors when it tried to install the Recovery I tried to also install TWRP. Then, I went and reset it to the factory settings, and rerooted using another tool, also don't remember exactly which one, since I had to try multiple times, with multiple different rooting softwares before it worked. Then, I installed Clockworkmod Recovery, seemingly successfully, moved CM 10.2 RC onto my phone, and the corresponding google apps package. I tried to install both, but I came across the Rom Manager saying I could only install one zip file at a time, which led me to only try to install CM 10.2 RC, thinking I could later download the google apps package. My phone then turned off, and upon restarting, it said Secure Boot error, and some other text, whatever I tried. Then upon searching for an hour or so, I found a website talking about teenybins, on XDA, which I followed to the letter. http://xdaforums.com/showthread.php?t=2249500 . During this, at first, my computer said that the usb was not recognized, so I got AutoLGNPST-tSilenzio, which allowed me to get LGNPST working. I then proceeded with the instructions, and everything went to plan, and it stopped at 67%, then went to 85% as I disconnected my phone. Then, it showed a white google logo, with an unlocked lock. For a while, I could not get it to do anything, but then I got it to go to download mode again, and redid the process in hopes of the second time working. It did not. however, after this, by holding the power and the raise volume buttons, I got to an android laying down, with its stomach open, A big green start arrow pointed at my power button, two arrows, up and down, by my volume buttons, and the following information:

FASTBOOT MODE

PRODUCT_NAME - mako

VARIANT - mako 32 GB

HW VERSION - rev_11

BOOTLOADER VERSION - MOKOZ10f

BASEBAND VERSION - N/A

CARRIER INFO - None

SERIAL NUMBER - 018e8dcb52d6a343

SIGNING - production

SECURE BOOT - enabled

LOCK STATE - unlocked

Then I played around with it, in recovery mode, not really doing anything, wondering why It was TWRM instead of CWR, until I finally got ADB working, upon which I first tried Sideloading CM 10.2

Which resulted in the following:

Starting ADB sideload feature. . .

Installing '/data/media/sideload.zip'. . .

Checking for MD5 file. . .

Skipping MD5 check: no MD5 file found.

It also says adb sideload complete, with a red Failed underneath, and has one option below, to reboot system

and then I pushed CM 10.2 along with google apps, onto my phone, and tried to install. which resulted in the following:

Uploading partition details . . .

E: Unable to mount '/system

Installing '/sdcard/cm-110.2.0-RC1-E975(1).zip'. . .

Checking for MD5 file. . .

Skipping MD5 check: no MD5 file found.

Error Flashing zip '/sdcard/cm-110.2.0-RC1-E975(1).zip'

Uploading partition details. . .

E: Unable to mount '/system

Installing '/sdcard/apps.zip'. . .

Checking for MD5 file. . .

Skipping MD5 check: no MD5 file found.

************************************************

Google Apps for Android 4.3.0

************************************************

Installing files. . .

Cleaning up. . .

Installation complete!

Installing '/sdcard/cm-110.2.0-RC1-E975(1).zip'. . .

Checking for MD5 file. . .

Skipping MD5 check: no MD5 file found.

Error Flashing zip '/sdcard/cm-110.2.0-RC1-E975(1).zip'

Uploading partition details. . .

E: Unable to mount '/system

And below the command window, it says failed, and three actions, home, reboot system, and wipe cache/dalvik, of which I have tried all three, which all work.

I understand I may not be the smartest person to make such a litany of mistakes, but I hope that some of the great developers here could somehow help unbrick my device, as I have no way to get a new (smart)phone in the next year, so this is really my only hope. If someone could please tell me how to fix it, with phone terminology explained, but I have no problems using any command prompt or any other methods, as I do do a lot of work with computers. Thank you in advance for what I know will be a good reply, and I wish you all a good day.

PS: Could someone please tell me how to successfully flash CM from where it ends up as I could not find a way from stock except for the one that led to this unfortunate situation.