If the screen shows "NULL/NULL" or a "0000..." sequence, the EFS partition (which stores security data) is likely damaged. 2. Common Samsung IMEI Repair Tools
A is specialized software that bypasses Samsung’s security to rewrite or restore the EFS partition and the NVRAM (Non-Volatile Random Access Memory). These tools do not "generate" new IMEIs; they either restore the original factory IMEI or repair the cryptographic certificates that authenticate the IMEI to the network. samsung imei repair tool
Always take an EFS backup using TWRP or Samsung’s own backup utility before flashing any custom firmware. A backup is worth a thousand repair tools. If the screen shows "NULL/NULL" or a "0000
Z3X Samsung Tool Pro, Octoplus Samsung Box, Chimera Tool, SamKey. These tools do not "generate" new IMEIs; they
: An alternative professional box that provides deep access to the EFS (Encrypting File System) partition where IMEI data is stored. Standard Repair Workflow
Chimera Tool is a highly respected name in the mobile servicing industry, known for its broad device support and regular updates for the latest Samsung models. It is a professional software solution used by technicians worldwide.
Tools advertised online promising to "change" an IMEI are often scams or vectors for malware. Attempting to overwrite a blacklisted (stolen or unpaid) IMEI with a clean one constitutes fraud and can result in permanent device bricking or legal prosecution. Security Risks