Factory Images for Nexus S I9020A and i9020t and i9023

FASTBOOT IMAGES

If you're comfortable with fastboot, you can flash these images to return your phone back to raw stock.


Generally the best way to do this is to perform the following steps:


Step 1- Download the ADB And Drivers and Factory Images


ADB Link 


Factoryimage


I9020A 4.0.4 (IMM76D) LINK  


I9020A 2.3.6 (GRK39F) LINK 


I9020T and i9023(IMM76D) LINK  


I9020T and i9023 (GRK39F) LINK 


Step 2-Extract nex.zip to c drive


Step 3-Unzip  Factoryimage  with 7 Zip twice and place in nex folder in c Drive


Put all six fastboot images in nex folder,
unlock your bootloader, perform the fastboot flashes, then lock the bootloader again


Note-unlocking bootloader wipes your all data including all memory,Before unlocking take backup everything


fastboot oem unlock
fastboot flash bootloader bootloader.img
fastboot reboot-bootloader
fastboot flash radio radio.img
fastboot reboot-bootloader
fastboot flash recovery recovery.img
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot oem lock


FLASHING FASTBOOT IMAGES WILL ERASE ALL OF YOUR PHONE'S DATA AND WILL RETURN YOU TO A FACTORY STOCK, UNROOTED STATE.