If you are looking for software to manage or service a Samsung device, the following are the primary "tools" used by developers and technicians:
System Customization: Changing the CSC (Country Specific Code), managing partitions, and removing warning messages (such as bootloader unlock warnings). samsung tool 191
Disclaimer: This article is for educational purposes only. Modifying device identifiers is illegal in many countries. The author does not endorse the use of cracked software or IMEI alteration. If you are looking for software to manage
: The tool generates logs of every operation. If you need to "prepare a paper" (report) of your work, you can usually copy these logs from the software's output window into a document. If you are troubleshooting a Samsung Printer Official Unlocking: Contact your mobile carrier to request
This is the most controversial feature. Samsung Tool 191 allows writing a “cert” file to the EFS partition. Legitimate repair shops may need this after a logic board replacement (to restore the original IMEI). Unscrupulous users can change IMEI to bypass blacklists—this is illegal in most countries including the US, UK, and EU.
These tools are professional-grade and can "brick" (permanently disable) a device if used incorrectly. Additionally, altering IMEI numbers is illegal in many jurisdictions. Official Support: