Is downgrade to GB possible? is 4.0.3 stock rootable?

[k.electron]

I just bought an unlocked 9023 nexus s for my sister in India. I am a flash-junkie on my verizon droid inc, but she is not tech savvy. I wanted to load up a good stable system for her before handing over the phone so she could use it as a daily machine. I was thinking about applying the stock 4.0.3 full update but then i saw some issues about wifi and signal and google halting it, so now im having second thoughts. if i do the 4.0.3 full update from recovery, can i go back to gb if i have problems?
will the phone keep getting all future ics upgrades through google?
is 4.0.3 stock rootable? and will root stay in upgrades? (so if i root and give her, Id like her to use titanium and stuff and not have to worry about losing root in future OTA.)

Thanks.

 

[madd0g]

How about reading the stickies.

 

[superm1]

I just bought an unlocked 9023 nexus s for my sister in India. I am a flash-junkie on my verizon droid inc, but she is not tech savvy. I wanted to load up a good stable system for her before handing over the phone so she could use it as a daily machine. I was thinking about applying the stock 4.0.3 full update but then i saw some issues about wifi and signal and google halting it, so now im having second thoughts. if i do the 4.0.3 full update from recovery, can i go back to gb if i have problems?
will the phone keep getting all future ics upgrades through google?
is 4.0.3 stock rootable? and will root stay in upgrades? (so if i root and give her, Id like her to use titanium and stuff and not have to worry about losing root in future OTA.)

Thanks.

Nexus devices can always have their bootloaders unlocked and then install superuser afterward. When unlocking the bootloader all of her data will be lost.

Root is disable on OTA updates because permissions get adjusted. You can run a fix permissions in CWM or reflash a superuser zip file after the OTA to get root again.

You can go back to GB by flashing an old system image using fastboot if you don't like ICS.

 

[k.electron]

Nexus devices can always have their bootloaders unlocked and then install superuser afterward. When unlocking the bootloader all of her data will be lost.

Root is disable on OTA updates because permissions get adjusted. You can run a fix permissions in CWM or reflash a superuser zip file after the OTA to get root again.

You can go back to GB by flashing an old system image using fastboot if you don't like ICS.

thanks.
exactly what i needed to know. i might just put ics and give it to her without root so she can keep getting OTAs because i dont think she really needs root.