"evilicacell" (often a user's alias or a branded mod of tools like MTK Bypass Utility or UnlockTool ) is not an official piece of software. It is part of a leaked or cracked ecosystem of .
Never download these tools. If you need to unbrick your phone, use official SP Flash Tool with legitimate auth files from your phone's vendor. For security researchers: The "evilicacell" toolchain is an excellent binary analysis target—study its communication protocol, but do so in an isolated VM disconnected from the internet.
First, let's break down the terminology.
The "Format All + Download" option, if misused, wipes the (where radio calibration data lives). Without a backup, your phone may lose IMEI, Wi-Fi MAC, and Bluetooth address—making it an expensive paperweight.