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Before fixing the problem, you must understand the cause. The SM-J320FN uses a chipset. Unlike Qualcomm phones (which store IMEI in the QCN) or Exynos phones (which store it in the EFS), Spreadtrum chips store IMEI data in the NVRAM (Non-Volatile Random Access Memory) and the ProdNV partition.
Assuming you have Z3X Samsung Tool Pro v.30+
If you have tried Z3X, Chimera, and Octoplus, and the IMEI remains "Null," the physical NVRAM chip (eMMC) may be damaged.
Keep your EFS backed up, and you will never suffer this problem again.
Before fixing the problem, you must understand the cause. The SM-J320FN uses a chipset. Unlike Qualcomm phones (which store IMEI in the QCN) or Exynos phones (which store it in the EFS), Spreadtrum chips store IMEI data in the NVRAM (Non-Volatile Random Access Memory) and the ProdNV partition.
Assuming you have Z3X Samsung Tool Pro v.30+ j320fn imei repair
If you have tried Z3X, Chimera, and Octoplus, and the IMEI remains "Null," the physical NVRAM chip (eMMC) may be damaged. Before fixing the problem, you must understand the cause
Keep your EFS backed up, and you will never suffer this problem again. Before fixing the problem
Get weekly insights on vertical development and mindset mastery. Sign up now and receive my top five articles to jumpstart your leadership growth.