[Q] Stock Recovery Can't Access External Memory topic

Hi..
I need help..

My galaxy wonder can't startup, just stuck at samsung logo, and suddenly shut down.

1. I flashed original gingerbread firmware via ODIN, it shows PASS message in blue notification, but my galaxy wonder still won't startup, still the same : stuck at samung logo, and suddenly shut down
2. I flashed CWM 5.504 and 6.04, ODIN show PASS message in blue notification. But when I entered recovery mode, CWM wasn't isntalled.
3. And when I entered stock recovery and apply update from sdcard, I couldn't access to external mcard. My phone show contents of internal storage, not external

Anyone can help me please?
Sorry for my bad English