Auto Patch: G610s U2

How to Fix "Emergency Call Only" on Samsung Galaxy On7 (G610S) Go to product viewer dialog for this item.

Key Specs: Features a 5.5-inch 1080p display, Exynos 7870 processor, and 3GB of RAM. G610s U2 Auto Patch

Some "Auto Patch" methods require a specific kernel. If signal disappears after a restart, you may need to re-apply the patch or check your root status. Model Not Found: If isn't listed, some technicians use the Go to product viewer dialog for this item. Go to product viewer dialog for this item. profiles as alternatives, though this carries risk. How to Fix "Emergency Call Only" on Samsung

Open Miracle Box and select Mediatek Tab.
Choose "MT6582" as the CPU.
Click "Auto Detect / Patch U2".
Connect the powered-off G610s via USB.
Miracle Box will automatically send the G610s U2 Auto Patch sequence. You will see logs like: "U2 Lock Detected... Sending Patched DA... Bypass Success."
After bypass, navigate to "Flash" and write the full firmware.

Never flash a custom recovery (TWRP) without unlocking the bootloader first. On the G610s, use fastboot oem unlock.
Use the correct partition sizes. The G610s has a 4GB internal storage variant (U00) and an 8GB variant (U20). Mixing them re-triggers the U2 lock.
Keep a backup of your working preloader. In SP Flash Tool, use "Read Back" to save a clean preloader.bin.