[LG Optimus 2x] rugglez:
Presenting MIUIv4 Jellybean (4.1.2) 3.2.8 for the new bootloader :D (unofficial)

Read this post entirely before using the ROM or asking any questions!

Firstly, I want to thank Ricardo for all his work on CM for our phone. Since this ROM uses CM10 as base, it would not be possible without RC's work.

This ROM has been ported to the O2x from various other devices having official MIUI support (such as the Nexus S, Atrix etc.) and the MIUI team deserves credit for all of that.

This would not be possible without pengus77 and the other devs who brought CM10 to the new bootloader. His thread is here

Details of the ROM:

For use with NEW unlocked ICS bootloader only, tested with CWM recovery 6.0.1.5

Multilanguage support (refer post #2)

Does not come with gapps, you need to flash it separately

Screenshots:

(Theme applied below is 'Dark knight HD' by remcis, so thanks to him)

Screenshots attached below the post again in case you cannot see these

Tips on using the ROM:

To charge normally (fast), turn off phone, plug charger, wait for a minute (till the charging animation goes off and phone is off again) and turn on phone. Now it will charge fast. This is the standard procedure for all JB ROMs. If you dont follow this, charging will be slow.

You need to turn auto-brightness off if the LED notification lights stay on even with screen is off!

Camera:

If you are not satisfied with the quality and performance of the stock camera app, use the bundled 'ICS Camera', or an app like 'Camera360 Ultimate' (free app from the play store). It will produce better quality images.

If you get a clicking sound when starting and closing camera, dont worry, read this

Superuser:

Before installing anything, first activate root permission from 'LBE Guard' app in 'Security Center' folder. Select 'manage root permission' and enable it.

This only needs to be done once, and all superuser prompts will come as usual when you install/use root apps.

If you installed or tried to use any root apps before doing this, and your app no longer gets root access, reinstall that app. Also includes a custom hosts file, which you have the option to remove if you want to see ads.

Battery:

To see percentage battery indicator on the status bar, go to settings->battery and change the battery indicator style

Performance:

To make the UI transitions faster, you can use the good old standard tip:

Go to settings->developer options

Set 'window animation scale', 'transition animation scale' and 'animator duration scale' all to "0.5x". UI animations will seem twice as fast after doing this.

If the ROM becomes slow over time, do a reboot.

And try not to do a lot of stuff in the first few seconds when SD card scanning is going on, sync is going on or when apps are updating in the background. Its not right to complain of "this/that doesnt work" or lag when you do that ;)

Kowalski kernel included in the ROM from version 3.1.11

Some cool tips and tricks to improve your MIUI experience(taken from the official site):

Tips, tricks and shortcuts

Download links:

Download link

Gapps download link

Instructions:

Same instructions as pengus77's instructions here. If you are new, and still on old GB bootloader and not sure where to start, refer to this

Dont forget to flash the 4.1.2 gapps ;)

Standard disclaimer:

I am not responsible if anything goes wrong with your phone.

If someone has posted a bug and you have the same bug, just thank their post or wait. No need to flood with the same bug reports.

Small problems such as some app related problems can be dealt with at a later stage.

Known issues:

Stock clock widget on default theme may not work sometimes. Works with any other theme (you can change only widget's theme too, without changing full theme)

Unable to change ringtone? Use this fix

Credits:

RC and the rest of the CM team for all their work

MIUI team (especially the Nexus S team and Photon team headed by Th3bill)

wkpark for cracking the new bootloader and making it possible to use custom ROMs with it

Pengus77 and the other devs who brought CM10 to the new bootloader. Also, thanks to him for his Kowalski kernel

zeppelinrox for his v6 supercharger and carburano for supercharger values

Wajk and bihariel for their previous MIUI ROMs which i used, and which inspired me to make this ROM

All the other devs for inspiration (PM me if i missed anyone :) )

If you post any bug due to not following the above instructions or tips, I may not answer ;)

Regards and thanks.