HUAWEI Y600 FIRMWARE, On this page you will find the official firmware download link of Huawei Ascend Y600 .
Look down the pdf file to find the way to install it in device.
How to update firmware ?
1 : Download the update.zip file
2 : Copy it to SD Card.
3 : Switch off the phone.
4 : Pull out the battery and put it in again to make sure phone is off.
5 : Then press the power key, when the mobile phone vibrating, then press the volume up key immediately, it should boot into the recovery model.
6 : You may see no command error android logo.
7 : Wait for few second and you will see recovery mode.
8 : Press down the volume down button to the “Apply Update From SD Card”
9 : Then press power button to make an update.
10 : Press volume up button to goto Reboot button and that’s it.