Huawei Ascend G630 shows on the display: "Recovery image verify failed"

I've spent much time reading up on my issue with no progress at all. I have a problem with a Huawei Ascend G630. I have never rooting my phone or flashing a custom rom. The phone does not work, I can’t reset it by pressing volume up, down and power, and only when it’s on charge, it shows the message: "Recovery image verify failed Please update to the authorized images”. I removed the battery, then, I tried getting it into the recovery mode to reset It or even flash its stock firmware following this instruction to solve it: 1) I downloaded HUAWEI G630 Firmware from here: http://consumer.huawei.com/kh/mobile-phones/support/downloads/detail/ascend-g630-kh.htm?id=26062 2) I extracted Huawei Smartphone firmware (UPDATE.APP) on my PC and then I have pasted it on micro SD card. The process doesn’t start and the phone returns to the first message “Recovery image verify failed”. I think that bootloader is locked. I enclosed a picture. Please help me. Thanks.