semayi: Nexus S GT-i9023 CRESPO Firefox OS Alpha

B2G (Boot to Gecko) Project have been announced on 25th July 2011 by Dr Andreas Gal, Dircetor of Research Moziila Corporation, since then the race of mobile operating system getting hotter, since Canonical Inc also announced their Ubuntu Phone Project. B2G now is FIREFOX OS another Linux Bases open source operationg system, to allow HTML% communicate directly to a device.
Samsung GT-i9023 famous as Nexus S aka CRESPO is one of device have Firefox OS Port, Nexus devices series (Nexus One, Nexus S, Galaxy Nexus and Nexus 4) known as development board, device production under google supervision.

Preparing Nexus S for Flashing

Nexus S released by device vendor on Locked Boot loader, to enable flashing the device with Android Custom Rom, Custom CWM, Ubuntu Touch, Firefox OS, the boot loader need to be unlocked
Unlock Boot Loader on Nexus S is quiet straight forward
Prepare a PC (Linux, Windows, Mac) with adb & fastboot alive
THIS PAGE SCREENING BY USING PC POWERED BY GENTOO AMD64 LINUX
Check Nexus S by booting into Boot loader Mode by Simultaneously pushing POWER BUTTON AND VOLUME + (UP)

Once work LOCKED appear, mean the boot loader is locked and user can not flash anything to device
Turn device to Unlock

Boot Nexus S to boot loader : by simultaneously pushing Power and Volume +(up) button
Connect Nexus S to PC via USB Port

Ensure on Nexus S AT left down corner, word : STANDARD_SET_CONFIGURATION appear
ON PC : open Terminal application and execute command line

$ fastboot oem unlock

ON NEXUS S : will appear option to choose: ENSURE TO CHOOSE YES

To choose use VOLUME BUTTON (+/-) (Up/Down) to confirm push POWER BUTTON

Upon Completion : Nexus S Boot loader is UNLOCKED

LET US DECLARE AS THE REAL MASTER OF OUR OWN NEXUS S

Flashing Nexus S with Customs CWM or TWRP (Mandatory Tools)

For who do like TWRP Download FOR CRESPO NEXUS S
For who do like CWMR Download FOR CRESPO NEXUS S
Boot Nexus S into BOOT LOADER
Connect to PC Via USB
ON PC : Open Terminal and Navigate to folder where TWRP or CWMR saved
Execute Command

$ fastboot flash recovery TWRP_FileName.img OR CWMR_FileName.img

Boot into boot loader and choose RECOVERY ... see

CWMR FACE

TWRP FACE

Suggested OPTION > boot into recovery and do BACK UP live ROM ... Just in Case

NOTE : AFTER installed CWMR / TWRP and booting into STOCK ROM, CMWR / TWRP probably will lost due to some stock rom reflashing stock recovery every reboot. In this case WE NEED TO REINSTALL CMWR / TWRP.

FLASHING FIREFOX OS

Download Firefox OS Image Flashable via FASTBOOT
Firefox OS Image Flashable Via CWMR / TWRP available on NET ... Just be good friend with GOOGLE SEARCH
Boot Nexus S into Boot loader > fastboot
ON PC : Open Terminal application > Navigate to folder where Firefox OS Image saved
Execute Comand

$ fastboot erase cache
$ fastboot erase userdata
$ fastboot erase system
FOLLOWED BY
$ fastboot flash userdata userdata.img
$ fastboot flash system system.img
$ fastboot flash boot boot.img
$ fastboot reboot
NEXUS S REBOOTING ......