Developer ports One UI 2.1 and Galaxy S20 features to several Samsung Galaxy phones with the Exynos 7870

Back in April 2020, Samsung delivered the Android 10 update to the Galaxy J6 sans the One UI 2.1-specific software features. The phone is powered by the Exynos 7870 chipset, a 14nm octa-core SoC from 2016 that also powers several mid-range Samsung Galaxy phones. Many of those Exynos 7870-equipped devices are excluded from getting the official Android 10 update from Samsung, although they are theoretically capable of running it. To fill the void, XDA Recognized Developer Astrako has now compiled a generic Android 10 ROM containing a bunch of One UI 2.1 features from the Galaxy S20 series for the Exynos 7870 platform.

Dubbed as H-ROM, the GSI-esque ROM is compatible with seven legacy Exynos 7870-powered Samsung smartphones, which includes the Galaxy A3 (2017) and different variants of the Galaxy J5/J6/J7. The base of the ROM is taken from the Galaxy S20 5G, while the developer ships a modified CSC from the Galaxy S10 that enables features like native call recording. The whole package is dependent on the unofficial Project Treble implementation for these devices by the same developer.

Featuring July 2020 Android security patches, the latest version of H-ROM is stable enough to be a daily driver. There are some known glitches with the camera, though, and the built-in H-Kernel has SELinux in permissive mode, which is a major security issue. In case you want root access, it would be better to opt for the Canary version of Magisk. Flashing Magisk stable on top of the current build of this ROM gives you a bootloop, so avoid that for now.

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Download H-ROM

Once you successfully Treble-ize your device and install H-Vendor, you have to completely wipe it before flashing the H-ROM ZIP. There is no device-specific build, as the unified installer is smart enough to detect the model and apply appropriate modules. The base variant of H-ROM is optimized for devices with a smaller system partition. A separate Samsung stock app package is provided by the developer for sideloading.

H-ROM for Samsung Exynos 7870 Devices: OneDrive || Google Drive || MEGA

The model-specific discussion threads can be found below:

Device and XDA Forum Link	Model Number	H-ROM Discussion Thread
Samsung Galaxy A3 (2017)	A320X	Click here
Samsung Galaxy J7 Prime	G610X	Click here
Samsung Galaxy J5	J530X	Click here
Samsung Galaxy J6	J600X	Click here
Samsung Galaxy J7 Core	J701X	Click here
Samsung Galaxy J7	J710X	Click here
Samsung Galaxy J7 (2017)	J730X	Click here

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