you Downloaded firmware for Huawei Mate RS Porsche Design NEO-L29 with build NEO-L29C721B128 (8.1.0.128),NEO-L29C721B120 (8.1.0.120)
Huawei Mate RS Porsche Design NEO-L29 Published on Released 2018, April . with Android 8.1; EMUI 8.1.
Display size on Huawei Mate RS Porsche Design is 6.0" and the resolution is 1440x2880 pixels

You can flash The Stock firmware of NEO-L29 using This Guide.
more about Huawei Mate RS NEO-L29:

this model of huawei powerd by Octa-core (4x2.4 GHz Cortex-A73 & 4x1.8 GHz Cortex-A53) and the internal storage size and ram size is 256/512GB storage, no card slot.
also it can support No.
besides it can support Hybrid Dual SIM (Nano-SIM, dual stand-by) .
the Gpu chip model is Mali-G72 MP12 and also the Chipset model used on this model is Hisilicon Kirin 970
The camera on the Huawei NEO-L29 comes with and support 2160p video pixles.