Huawei Y530-U00 B515

100% tested update file

Password is huawei30

Create new folder and rename it to dload.
Now copy update.app file to dload folder that you downloaded in step 1.
Now copy that dload folder to root for your sdcard.
Put sdcard to you phone and power off your cell phone.
Now press Volume + Volume – and power at the same time.
Update process will start.
Now wait for few minutes after update process finish cell phone will restart.
Enjoy….
Feel free to comment if you faced any error.