Hi All,
I want to share with you an experienced informtion on AD9430DN-24 like in the below,if you have SD failure error when device boot itself,please contact with your Huawei Support team,it's most likely a hardware problem.
· Goto FAT AP updating process
· AD9430DN-24 V200R010C00SPCd00B932
· Writing Rootfs to SD, Maybe Long Time, Please Wait...
· Warning: Do Not Power-Off!
· sd_send_op_cond: Timed out
· Card did not respond to voltage select!
· Not Exist!
· Writing Rootfs to SD Fail
· ar7240>

