DOB Update in H1B visa and SSN

[prash.pcg]

Hi,

I am on H1B and I am going to extend my H1B in another 2 months. I had a mismatch in my passport and Birth certificate. I have corrected my passport with correct Birth certificate.
Now I am planning to amend my visa with extension and update my SSN. Below are my queries

1. What are the document required to amend DOB in H1b visa?
2. What are the document/procedure to correct DOB in SSN ?
3. Which document we have to update with correct DOB first , Visa or SSN?
4. Do we have to change I94(DHS). If yes, what is the procedure for it?

Could someone please help me for this?

[rcg]

Were you able to figure it out I too have corrected DOB in passport from US. But couldn't updated SSN dob since new DOB does not match I94 DOB.
I don't know how to proceed. Visa has the old DOB. Is the visa valid for travel outside and enter the country?