Officially, the SM-G530H never received a global Android 6.0.1 Marshmallow update from Samsung. The latest official builds typically include: Android 5.0.2 Lollipop. Latest Build: G530HXXS2BSB1 (Released around April 2019).
A classic Marshmallow-based ROM known for its stability and performance on older Samsung devices. sm-g530h firmware 6.0 1
Caution: Flashing custom firmware can brick your device and voids your warranty. Ensure you backup all data first. How to Install Android 6.0.1 Marshmallow On Galaxy S3 (4K) Officially, the SM-G530H never received a global Android 6