Why go through the trouble of finding the instead of using a local version?
The Vivo Y75A operates on the chipset and originally shipped with Funtouch OS 3.2 based on Android 7.1 Nougat. Specification Model Vivo Y75A (PD1718) Processor MediaTek Helio P23 (MT6763) OS Funtouch OS 3.2 (Android 7.1) RAM/Storage 4GB RAM / 32GB or 64GB ROM Display 5.7-inch IPS LCD (720x1440) Identifying Global vs. Chinese Software
Download and Install Stock ROM On Vivo Y75A [Official Firmware]