NVRAM stands for Non-Volatile Random-Access Memory. In MediaTek (MTK) powered smartphones like the Huawei Y5 2017 (MT6737T chipset), the NVRAM partition stores vital hardware-specific information that must persist even after factory resets or firmware upgrades. The MYA-L22 NVRAM file contains calibration data for:
If your Huawei Y5 2017 already has a unlocked bootloader and custom TWRP recovery installed, you can restore the NVRAM partition without a PC. mya-l22 nvram file
By default, standard scatter files may not automatically load the NVRAM partition for security reasons. You will need to link it manually: NVRAM stands for Non-Volatile Random-Access Memory