[GUIDE] Port Nexus 4 & E973/975 ROMs to E970 - AT&T LG Optimus G

HOW TO PORT ROMs TO THE OPTIMUS G E970
Code:
[CENTER][COLOR="Red"][B]This guide is provided for reference only. I, defcondev, will not be held liable
for any damage to your device, physical or software-wise.[/B][/CENTER][/COLOR]
PREFACE
This guide is intended for those who would like to port ROMs from devices such as the Nexus 4 to the Optimus G E970, as well as port ROMs from other Optimus G variants, such as the E975 & E973.
ROMs for the above devices will usually already boot on E970's with the "getprop("ro,product.device")" assert removed from the updater-script​
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Nexus 4 ROMs to E970
1. Start by taking the ROM you want to port,
open the updater-script in META-INF\com\google\android with Notepad++ & remove the following line located at the top of the script
Code:
assert(getprop("ro.product.device") == "e975" || getprop("ro.build.product") == "e975");
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2. Download the "N4_Port_Package" ZIP attached to this post, this ZIP contains all of the libs & firmware you will need.
Use 7-zip and drag the files from the ZIP you downloaded into their corresponding folders in the ROM you're trying to port. Don't decompress the ZIP, as then you'll have to re-sign it before you can flash.
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3. Open the ZIP of the ROM your're trying to port with 7-zip; delete boot.img
-Grab a working boot.img, a good one is dvhexer's CM10.1 Alternate for 4.2.2 ROMs, or his CM10.2 Alternate for 4.3 ROMs.
LINKS:​dvhexer's CM10.1 Alternate or dvhexer's CM10.2 Alternate​
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​
4. Open the framework-res.apk from the ROM you want to port using 7-zip, and drag "storage_list.xml" into the folder res\xml, overwriting the original. (storage_list.xml is in the root of the N4_Port_Package ZIP)
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NOTE: The external SD header in SETTINGS>>STORAGE may show up as a random string (invalid SIM, Issued by, etc), if this happens for you, you'll have to decompile framework-res.apk from the ROM you wish to port & manually add the External SD lines in storage_list.xml and then recompile. I will touch on this later tonight & update this guide.
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5. Open build.prop in the ROM your're trying to port and change the device values to match your e970, use a build.prop from a ROM made for the e970 for reference.
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E973/E975 ROMS to E970
SAME INSTRUCTIONS AS ABOVE, EXCEPT USING THE "OG_PORT_PACKAGE.ZIP" ATTACHED TO THIS POST.
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This guide is a somewhat rough draft, I will beautify it & elaborate more ASAP when I get home from work.​
THANKS
dvhexer
Houstonn
SnowLeopardJB
sk8erwitskil
rohan32
MysteryEmotionz
Jakeroxs
xxgmon3yxx
..anyone else I'm forgetting, PM me.
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References & Credit
dvhexer's unofficial CM10.1 thread-
http://forum.xda-developers.com/showthread.php?t=2130639
dvhexer's unofficial CM10.2 thread-
http://forum.xda-developers.com/showthread.php?t=2390272
Sk8erwitskil original flashable zip for N4 conversions-
http://forum.xda-developers.com/showpost.php?p=36818642&postcount=32
xxgmon3yxx N4 conversion flashable zip thread-
http://forum.xda-developers.com/showthread.php?t=2117576
Jakeroxs N4 Conversion flashable ZIP List thread-
http://forum.xda-developers.com/showthread.php?t=2169485
Reserved

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MODERATORS:My apologies if this was supposed to be posted in the "Optimus G General" forum. Move if necessary. Thanks.

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Woah. Super cool man. Gonna have to play around with this some. Great info! Thanks a lot for bringing this to us. Very interesting. Thanks again. Great work!:thumbup::thumbup:
Sent from my LG Optimus G using xda app-developers app

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Awesome, I've been trying to port on my own with no success so this will be great, just a couple of questions, any reason why use dvhexer's alternate kernel instead of the normal one? And do the steps differ any for MIUI?

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MrZim4 said:
Awesome, I've been trying to port on my own with no success so this will be great, just a couple of questions, any reason why use dvhexer's alternate kernel instead of the normal one? And do the steps differ any for MIUI?
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dvhexer's alternate kernel has worked for all the the ROMs i've tried to port so far. And yeah, MIUI requires more steps to port, ill touch on that later today when i update & "beautify" the thread.
Sent from my Optimus G E970 using XDA Premium HD app

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defcondev said:
dvhexer's alternate kernel has worked for all the the ROMs i've tried to port so far. And yeah, MIUI requires more steps to port, ill touch on that later today when i update & "beautify" the thread.
Sent from my Optimus G E970 using XDA Premium HD app
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Cool cause I used to port MIUI on the Captivate but my method doesn't work anymore
Sent from my LG-E970 using xda app-developers app

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Dang, System UI fc's when I tried to port Pure Speed Xperiment over. and It shows software keys and hardware ones never light up. Is it because I tried a 4.3 ROM?

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jenkem110 said:
Dang, System UI fc's when I tried to port Pure Speed Xperiment over. and It shows software keys and hardware ones never light up. Is it because I tried a 4.3 ROM?
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Make sure this line is in your build.prop
qemu.hw.mainkeys=1
If not then add it
Sent from my Optimus G E970 using XDA Premium HD app

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defcondev said:
Make sure this line is in your build.prop
qemu.hw.mainkeys=1
If not then add it
Sent from my Optimus G E970 using XDA Premium HD app
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Defcon how do u get rid of nav bar?.. My cap keys work fine don't want on screen nav bar same as what u posted
Sent from my LG Optimus G using xda app-developers app

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iamtha1 said:
Defcon how do u get rid of nav bar?.. My cap keys work fine don't want on screen nav bar same as what u posted
Sent from my LG Optimus G using xda app-developers app
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What ROM are you on?

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defcondev said:
What ROM are you on?
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Vanir.mako.4.3
Sent from my LG Optimus G using xda app-developers app

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iamtha1 said:
Defcon how do u get rid of nav bar?.. My cap keys work fine don't want on screen nav bar same as what u posted
Sent from my LG Optimus G using xda app-developers app
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I've never actually used that ROM. In the ROM's settings is there a Navigation Bar area for customization? Perhaps there a "Navbar Height" setting you can change to "0"?
Sent from my Optimus G E970 using XDA Premium HD app

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Hello!
Can i port some stock rom, using this method ?
rom like - http://forum.xda-developers.com/showthread.php?t=2437562

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OK I can quite a few mako ROMs to boot got ex SD working.. But I never have a camera app no matter what gapps I flash
Sent from my LG Optimus G using xda app-developers app

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iamtha1 said:
OK I can quite a few mako ROMs to boot got ex SD working.. But I never have a camera app no matter what gapps I flash
Sent from my LG Optimus G using xda app-developers app
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Are you on an e970, using dvhexer's CM10.1 Alternate Boot image?
Sent from my Optimus G E970 using XDA Premium HD app

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defcondev said:
Are you on an e970, using dvhexer's CM10.1 Alternate Boot image?
Sent from my Optimus G E970 using XDA Premium HD app
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Yes on e970. But been trying to port 4.3 mako ROMs... Using dvhexers 10.2 kernel. U should just make a instructional video.
Sent from my LG Optimus G using xda app-developers app

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iamtha1 said:
Yes on e970. But been trying to port 4.3 mako ROMs... Using dvhexers 10.2 kernel. U should just make a instructional video.
Sent from my LG Optimus G using xda app-developers app
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A videos not a bad idea; ill look into the camera issues after work in an hour or si & report back.
Sent from my Optimus G E970 using XDA Premium HD app

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iamtha1 said:
Yes on e970. But been trying to port 4.3 mako ROMs... Using dvhexers 10.2 kernel. U should just make a instructional video.
Sent from my LG Optimus G using xda app-developers app
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I've never had the camera not work coming from mako source, actually from any source so far. You do have gallery 2/4.apk in your end result right?
I know its not named camera, it's a bit retarded. You don't need gapps for a camera though.
Check your system/app folder and make sure gallery2 . gallery4 are in there from your port source, and in your final build.
-edit- and if you're coming from a CM based rom, it might be that they opted to use focal, in which case look for "focal.apk" which is also a camera app.
-edit2- worst, worse case, I'll attach gallery 2 and gallery 4 apks, upload slow but they're on the way.
View attachment Gallery2.apk
View attachment Galaxy4.apk

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Evansir said:
Hello!
Can i port some stock rom, using this method ?
rom like - http://forum.xda-developers.com/showthread.php?t=2437562
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I'm actually unsure about porting stock ROMs, theres a lot of framework differences from AOSP :/