you Downloaded firmware for Huawei Ascend G510 G510-0251 with build
Huawei Ascend G510 G510-0251 Published on Released 2013, April . with Android 4.1.
Display size on Huawei Ascend G510 is 4.5" and the resolution is 480x854 pixels

You can flash The Stock firmware of G510-0251 using This Guide.
more about Huawei Ascend G510 G510-0251:

this model of huawei powerd by Dual-core 1.2 GHz Cortex-A5 and the internal storage size and ram size is 4GB storage, microSD card slot.
also it can support microSD, up to 32 GB (dedicated slot).
besides it can support Single SIM (Mini-SIM) or Dual SIM (Mini-SIM, dual stand-by) .
the Gpu chip model is Adreno 203 and also the Chipset model used on this model is Snapdragon S4 Play
The camera on the Huawei G510-0251 comes with and support 720p video pixles.