We tested Next Gen OS v3.7 against the stock Lollipop ROM and LineageOS 18.1.
A: Yes. Flash Magisk v25.2 or higher via TWRP after the first boot. Do not flash it simultaneously with the ROM. next gen os v3.7 for j200g
If you are still running the stock TouchWiz or Experience UI on your J200G, you are likely accustomed to lag, forced app closures, and an interface that looks dated. Here is why upgrading to Next Gen OS v3.7 changes the game: We tested Next Gen OS v3
The first boot took four minutes—long enough for a deep breath. Then the setup screen appeared. Clean. Minimal. No bloatware, no ads in the notification shade. He tapped through setup, restored only essential apps, and braced himself. Do not flash it simultaneously with the ROM
If you are coming from v3.5 or v3.6, here is the changelog: