Here we provide Download Link of firmware for Huawei Mate S CRR-UL20 with build CRR-UL20C900B323
this Model of Huawei Published on Released 2015, October . with Android 5.1.1, up to 6.0; EMUI 3.1.
Display size on Huawei Mate S is 5.5" and the resolution is 1080x1920 pixels
in Here we provided all the stock firmware of Huawei CRR-UL20.
You can flash The Stock firmware of CRR-UL20 using How to Flash Huawei Stock Firmware (All Method).

Huawei Mate S CRR-UL20 Specification:

this model of huawei powerd by Octa-core (4x2.2 GHz & 4x1.5 GHz) and the internal storage size and ram size is 32/64/128GB storage, microSD card slot.
also it can support microSD, up to 256 GB (uses SIM 2 slot).
besides it can support Single SIM (Nano-SIM) or Hybrid Dual SIM (Nano-SIM, dual stand-by) .
the Gpu chip model is Mali-T628 MP4 and also the Chipset model used on this model is HiSilicon Kirin 935
The camera on the Huawei CRR-UL20 comes with 13 and support 1080p video pixles.


the Second camera module is 8 MP, f/2.4, 26mm (wide) and the body of Huawei Mate S CRR-UL20 is 156g, 7.2mm thickness
The battry type for this smartphone is Non-removable 2700 mAh battery.

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Notic: Please keep in mind that, you must flash Huawei Mate S (CRRUL20) firmware at your own risk and also full responsible with you.

Please be informed that Huawei-firmware.com only share the official firmware WITHOUT ANY modifications. All Huawei Roms here are for home or personal use only.