Heimdall is another popular tool used to flash and modify Samsung devices. To download the EFS file using Heimdall:
EFS file download and the proper steps to restore your device's connectivity. What is the Samsung N7100 EFS File? Samsung N7100 Efs File Download
Every EFS file is unique to its specific handset. Downloading a generic "N7100 EFS file" from the internet and flashing it may restore some connectivity but can result in a generic IMEI, which may be illegal or blocked by carriers. Backup Priority: Heimdall is another popular tool used to flash