GSM Shield Box allows you to perform Flash, Unlock, Reset FRP and many other operations on Qualcomm, Mediatek, and Spreadtrum-based phones.

Octoplus Box Samsung + LG allows you to perform Flash/Unlock/Repair operations with Samsung & LG cell phones with Octoplus Box service tool

Octoplus Pro Box with EMMC/Jtag Samsung and LG activated is a multibrand tool that performs Flash/Unlock/Repair operations with various cell phones.
Supported operating systems: Windows 7/8/10
There are many video manuals about how to unlock, flash,software repair for Samsung and LG phones