Sprint/Boost LG G Stylo Unbrick Service Package:
Using Kingroot to root LS770ZV7 may cause the Booting Secure error 1003.
Sprint LG LS770 Stock Firmware: LS770ZV5,DLL for LG UP,LG UP for Store
File name: LS770LGUPDLL.zip
Software Verison: LS770ZV5
The LS770LGUPDLL.zip file include:
LS770ZV5_16_ARB02.zip – TOT firmware
LGUP_CY_DLL_Ver_0_1_2_7.msi – LG LS770 DLL for LG UP
Click purchase to get zip password and full download URL with keys.
To unbrick/restore your LG LS770, You need:
Install Latest LG USB drivers;
Install LG UP Software
Install LG LS770 DLL for LG UP
and LG LS770 Stock Firmware
*The DLL file is for LG UP only. Do not try it on LG FLASH TOOL.
LG USB drivers:
*Please Notes that We are offering service to unbrick LG Phones.
*The “stock” firmware is build from a working LG Stylo LS770.
*It takes us more than 5 hours to build such a ‘stock” recovery tot firmware.
*Please respect our hard work and Please do not share the firmware.