How to recover XL710 corrupted firmware

The Linux driver fails to bring up XL710. Seems that fimware is corrupted. So I tried lanconf64e and nvmupdate64e to recover it, while both of them failed.

Anyone can help me? Thanks in advance.

[root@cccserverhp ~]# dmesg | grep i40e

[   15.951618] i40e: Intel(R) Ethernet Connection XL710 Network Driver - version 1.5.10-k

[   16.049004] i40e: Copyright (c) 2013 - 2014 Intel Corporation.

[   20.060510] i40e 0000:01:00.0: Initial pf_reset failed: -15

[   20.066261] i40e: probe of 0000:01:00.0 failed with error -15

[   24.083857] i40e 0000:01:00.1: Initial pf_reset failed: -15

[   24.089617] i40e: probe of 0000:01:00.1 failed with error -15

[   15.951618] i40e: Intel(R) Ethernet Connection XL710 Network Driver - version 1.5.10-k

[   16.049004] i40e: Copyright (c) 2013 - 2014 Intel Corporation.

[   20.060510] i40e 0000:01:00.0: Initial pf_reset failed: -15

[   20.066261] i40e: probe of 0000:01:00.0 failed with error -15

[   24.083857] i40e 0000:01:00.1: Initial pf_reset failed: -15

[   24.089617] i40e: probe of 0000:01:00.1 failed with error -15