1. Get “adb” and “fastboot” from Android SDK tool.
2. Prepare a blank memory card (Micro SD 4GB and more) for recording an image of the system.
3. Download the system image to a memory card sdcard_4g.rar.
4. Decompress/unrar archive, and u get the image of the SD card sdcard_4g.img.
5. Write image to your sdcard with:
”, where X your device.Code:dd if=/path_to/sdcard_4g.img of=/dev/sdX
Write image with Image writer for Windows to Micro SD card
Experts can make own sized partitions with this structure:6. Dowload bootloader's image “bootsd.img”.
then decompress and copy system.7z:Code:sdb1 – fat32 (rest size) the external storage sdb2 – extendet partition sdb5 – ext2 – 4MB sdb6 – ext2 – 4MB sdb7 – ext4 – 585MB /system sdb8 – ext4 – 315MB /cache sdb9 – ext4 – 28MB /devlog sdb10 – ext4 – about 1-1.2GB /userdata, where X your device.Code:dd if=/path_to/system.img of=/dev/scX7
7. Boot your phone to “BOOTLOADER” (VolDown+Pwr → Pwr).
8. Connect device to computer via USB cable.
9. Boot your device:
Command lineCode:fastboot boot /path_to/bootsd.img
Wait 3-5 minutes (The 1st boot can take some time, depend on speed of memory card).If all goes well, you get the device working without using the phone's internal memory!!!
PS: Be careful the image of the memory card will erase all existing information on it! Select the correct device before recording an image on the memory card. The author assumes no responsibility for the integrity of your data and equipment damage!
If you think the author's helpful, buy him a beer!
Booting from "Recovery":
To launch an android from the "Recovery", copy the "update.zip" to your memory card at root directory of the fat32 partition. In the "RECOVERY" select "apply update from sd card" and confirm "install" by selecting "Yes - Install ...". Installing update.zip only starts the Android system from the SD card. Now you can run the system without a PC.
This method is suitable to run in an emergency, if discharged or the phone needs a restart. He uses the chroot method and kernel in your RecoveryMod, so there may be some limitations of the functional (ex. WiFi module bcm4329.ko - wifi dont work after boot from Recovery).