It would be irresponsible not to mention the limits. As of 2025-2026, Samsung has patched most of the exploits that v143 relies on. For devices (One UI 5+), you will need the newer SamFirm Tool V2 (Paid) or SamFW FRP Tool (Free but ad-supported) .
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: Always ensure your antivirus is configured correctly, as mobile repair tools are often flagged as "false positives" due to their deep system access requirements. step-by-step guide It would be irresponsible not to mention the limits