To get started, there are a few basic requirements/downloads to be done:
1. JDK (Java Development Kit) –
2. JRE (Java Runtime Environment) –
3. Android SDK installer
Search Google for these files
So after all the downloads are done, you’re good to go.
First of all install the JDK, then the JRE and then the SDK Installer. Make sure that while installing the android sdk, the installation directory should be the root of a partition i.e. it should be in the following form : C:\android-sdk-windows , where you should replace the letter C with the letter you have assigned to the partition that you want to install it in.
Now that the Android-SDK is installed, goto the installation directory and start the SDK Manager. You need to add the components of the Android SDK to your installation. Before that I’d like to inform you that you can save time if you download only whats necessary. If you are on Android 2.1 then you should download the 2.1 sdk , for 2.2 the 2.2 sdk and so on. You do not need to have all the version for this thing to work. Just your version would do. So to start adding components,
After installing the desired components, you need to do perform some simple steps in order to use the adb terminal just like the cmd terminal for Windows.
For that purpose, here are the steps to be followed :
1. Right click My Computer, select Properties , click Advanced System Settings. (Windows XP users, Right click My computer and just click Properties and select the Advanced Tab)
2. Click on Environment Variables, in the System Variables box, scroll down to the variable name “Path” and double click to edit it
3. It would read something like ” %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\QuickTime\QTSystem\“.
4. Here you need to add a semicolon ( ; ) and add the path of the tools folder in android-sdk-windows.
5. It should finally be like this ” %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\QuickTime\QTSystem\;C:\android-sdk-windows\tools” where C:\ should be replaced by the letter of the drive in which you have installed your Android SDK.
6. Click OK wherever asked and then restart your computer.
7. Now open a command prompt window and type adb and hit enter. If a terminal window is displayed, you’ve done it all right.
8. If it gives some error message, read the article carefully and see what you have messed up with.
To install a Custom Recovery on your phone, you first need to have your phone rooted and the Android SDK installed on your system. For detailed instructions on rooting your phone and installing the Android SDK.
Now, once you’re up and running with a rooted phone and installed the Android SDK, you’ll need to download the recovery files. Here are the recovery files:
Download 1: Thunderg Recovery http://www.mediafire.com/?g6cgvutkqw4t4j6
Download 2: flash_image http://www.mediafire.com/?7pkcte8gcyn9pet
both the files are uploaded on Mediafire.com
Now to use this Custom Recovery, copy these two files and paste in the root of your SD card (root means the directory L:\ where L is the letter for your Phone’s USB Storage, in short, don’t create a folder and just paste it on your SD card)
I’m assuming that you have installed the Android SDK by now as the next step requires it to be installed. Go above and install the Android SDK before continuing.
If you have installed the Android SDK, follow these steps:
1. Goto Start Menu > Run and type cmd
2. In the cmd window, type adb. If you’ve installed it correctly, you’ll see a lot of text on the screen.
If you get an error message then you have probably not installed the Android SDK properly.
3. Type adb shell and hit enter
4. Type su and hit enter
5. See your phone at this time and touch the “Allow” option which SuperUser shows you
6. Now the terminal window will have a # sign appended to it.
Now one by one, copy the following lines, in the serial order and paste it into the terminal window (right click on window and paste, CTRL + V won’t work)
1. mount -o remount,rw -t yaffs2 /dev/block/mtdblock1 /system
2. cat /sdcard/flash_image> /system/bin/flash_image
3. chmod 755 /system/bin/flash_image
4. mv /system/etc/install-recovery.sh /system/etc/install-recovery.sh.bak (if it gives error message here, simply proceed to the next step)
5. mount -o remount,ro -t yaffs2 /dev/block/mtdblock1 /system
6. flash_image recovery /sdcard/recovery-RA-GNM-thunderg-1.1.0.img
7. reboot recovery
8. The phone will reboot now.
9. To access the Custom Recovery, turn off the phone and then press
Home+Vol Down+Power button to boot into the Custom Recovery
NOTE: If you get this error after step 4
mv /system/etc/install-recovery.sh /system/etc/install-recovery.sh.bak
failed on ‘/system/etc/install-recovery.sh’ – No such file or directory
Simply move on to the next step.
NOTE: If on booting into the recovery you get the following message at the bottom of the screen -
E: “Bad Boot Message”
Don’t panic, its perfectly normal and you can proceed with what you want to do from the recovery.
Once you’ve booted into the recovery, the touch won’t work. The actions assigned to the different buttons are given here:
• Up & down : vol-up and vol-down key
• Select : Menu key (left most)
• Back : Back (3rd from left)
The feautres available in the recovery are :
USB-MS Toggle :mounts sdcard as mass storage
Backup/Restore:
Nand Backup : runs a nandroid backup of data, cache, boot, system
Nand Backup + .android secure : backs up above plus .android_secure on sdcard (froyo native apps on sd)
Nand + ext backup : data, cache, system, boot, plus apps2sd on ext partition (old style apps2sd)
Nand Restore : browse to and select nandroid backup to restore
Flash Zip From Sdcard: (the file to be flashed must be in root of SD card)
Wipe Menu:
Wipe data/factory reset: wipes data & cache
Wipe cache
Wipe Dalvik cache : Wipes Dalvik cache in all possible locations if moved by apps2sd
Wipe SD:ext : Wipes Apps2sd ext partition
Wipe Battery Stats
Wipe rotate settings
Wipe .android secure : Wipes froyo native .android_secure on sdcard
Partition Sdcard:
Partition SD: Partition’s sdcard for apps2sd (this formats card so all non backed-up data is lost)
Repair Sd:ext
SD:ext2 to ext3 : coverts apps2sd ext2 partition to ext3 (requires kernel support for ext3)
SD:ext3 to ext4 : same as above but ext3 to ext4 (requires kernel support for ext4)
After having rooted the phone, installed Android SDK and Custom Recovery on your phone, installing a Custom ROM is as easy as copying the ROM file to the root of the SD card and flashing the zip from it.
If you’re worried it’ll void your warranty, don’t be! You can go back to the original LG firmware whenever you wish :
Since all the ROMs have their own kinds of partitions to be created, you can check them at the ROM specific pages.
http://forum.xda-developers.com/forumdisplay.php?f=839 ( FIND ROMS )
(ΠΡΟΤΕΙΝΩ ΤΗΝ ΟPTIMUS XROM EXEI ΣΤΥΛ 2.3 ) !!!!!!!!
To flash a custom ROM(make a backup if you want to keep apps, else you can always download them from the market) :
1. Boot into Custom Recovery
2. Wipe your cache, dalvik cache, SD card
3. Make partitions according to the ROM requirement
1.) Boot recovery (pwr-btn + vol-down + home-btn)
2.) format SD-card (no swap, 512mb ext)
3.) ext2 to ext3
4.) ext3 to ext4
5.) wipe everything
6.) copy zip to SD-card (root-directory)
7.) flash zip
8.) Boot and have fun
4. Wipe first 3 options of wipe menu again
5. Toggle USB MS and paste the ROM zip file to the root of the SD card
6. Disable USB MS
7. Select ‘Flash from zip’ option in Custom Recovery menu
8. Select the ROM file
1.9. It’ll take sometime and reboot into your new Custom ROM!
