Your mobile must be validated before registering your mobile number with your SBI account.
Follow this simple steps below.
Step 1: Type the message MBSREG from your mobile and send to 9223440000.
Step 2: You will shortly receive your User ID and Default MPIN.
Step 3: Note down your user id and default mpin.
Step 4: Now type SMPIN<space>UserID<space>Default MPIN<space>New MPIN and send to 9223440000 in order to change your default mpin. For example SMPIN<space>pjl123<space>123456<space>654321
Step 5: You will get two SMS with the following message – “Your MPIN is changed” and “Validation from handset successful. Complete registration process at ATM/ branch, if not already done.
Step 6: After receiving the second message regarding successful validation from handset, proceed to SBI ATM /Branch and register your mobile number.