Nexus S won't factory reset? (wind mobile) Jellybean?

HasibM

New member
So I bought a Nexus S that was rooted and updated to Jellybean. It's an unlocked phone originally locked to Wind Mobile.

So it's been having issues with getting stuck on the google logo after reboot, so I decided to sell it. Problem is when I go to factory reset the phone it shows the reset bar but then that turns into a big triangle with an exclamation mark on it with a little android guy next to it. The phone gets stuck there. All I can do from there is remove the battery.

From there I tried going on bootloader using power and volume up (says unlocked btw), and from there I load recovery. On recovery there is an option to factory reset and I click on there, however it doesn't do it. This is what I says:

"--wiping data...
formatting /data...
E:format_volume: make_extf4fs failed on /dev/blo/ck/platform/s3c-sdhci.0/by-name/userdata
Formatting /cache...
Formatting /sd-ext...
Formatting /sdcard/.android_secure...
Error mounting /sdcard/ .android_secure!
Skipping format...
Data wipe complete."

So I think the error might be accociated to the sd card because the Nexus S doesn't come with an sd card, it has built in memory? Also on recory when choose "mount sd card" it says"Error mounting /sdcard!".

So how do I go about fixing my problematic phone? I have a dude that wants to buy it but I can't even reset the damn thing, let alone fix the freezing at start up issue. I am also totally new to this.

Extra info: When the phone freezes at the google logo at start up I get passed that by using a blow dryer on the phone. That's the only way I start up the phone after the battery comes out. This is the gt-i9020t model.
 
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