Answered: Huawei Ascend G525 Signature Fail

Hi. Backup you data > download and reload the firmware pack here as per the foregoing steps:

1. Download and extract to access a file named 'UPDATE.APP"
2. Create a new folder on you SD card and name it: dload
3. Copy the 'UPDATE.APP' file to the dload folder
4. Insert the SD card onto the G525 
5. Ensure the phone is powered off
6. Press and hold: Vol Up + Vol Down + Power until the phone lights up and the installation begins