When the installation ends, tap on ‘Finish’. Then, extract the downloaded UPPERCUT ZIP file (UPPERCUT_1.0.0.0.zip). Step 7:Īt last, double-tap on the ‘UPPERCUT_1.0.0.0.exe’ file to launch the LGUP Tool. I figured it would be good to have a dedicated Factory Restore thread here for the LS990 (Sprint) G3 seeing as how we now have root and people want to be sure they can restore their phones if they screw something up.įirst off, I am not presenting any new material here, I just simply gathered guides/tips/tricks from many forum members in an attempt to make it easier for LS990 users to restore their phones.When the tool launches, it’ll detect your LG mobile device without any DLL files, provided that you have the LG USB Drivers installed.
Hopefully this will be helpful to those who want to restore their phones back to stock and allow a thread for troubleshooting if someone is having issuesĪlso, if you notice something wrong with the guide please say so! I have no ego here, we're all here to help one another so if I made a mistake please let me know I, nor anyone on XDA, is responsible for any damage done to your device. Please use at your own risk! The LG Flash Tool has the power to save your phone from a bootloop or soft-brick, however it can also do more damage if used improperly for the specified device. Please use with for hosting the stock G3 files. Please thank him in his thread for his guide on how to restore the LG G2. Please thank him in his thread for pointing out Sprint users should select "Board DL" in the LG Flash Tool.
Please thank (and donate if you can) to them here Team Codefire for finding an exploit that allows us to root our phones. #Lg flash tool megalock.dll g3 install#Įxtract the Setup_LGFlashTool.zip and double click on the exe inside the extracted folder to install the LG Flash Tool (note: make sure you don't choose a custom directory and that it installs to C:\LG\LGFlashTool).Double click on the LGUnitedMobile exe to install the drivers.USE THIS DLL INSTEAD OF THE SPRINT)<-Big Thanks to engine95 and autoprime Generic LG G3 DLL (**ATTENTION!!! ONLY USE IF YOU EDITED THE BUILD.PROP TO A DIFFERENT PRODUCT MODEL/BUILD ID AND ARE STUCK IN A BOOTLOOP.Backup your data! This will format your internal storage, including user apps, SMS/MMS, Call Logs, Pictures etc.Sprint DLL file for LG Flash Tool (Links will be below). Unplug your phone from your computer then turn off your phone.If your phone is still working (and not in a bootloop or perpetually off) plug it in to your computer and let the installation of the LG Drivers finish (if your phone is in a bootloop or it won't turn off it shouldn't be a big deal).Copy this file and paste it in the C:\LG\LGFlashTool directory (overriding the current MegaLock.dll file) Inside the extracted LG Flash Tool folder (where the exe is) there is a file called "MegaLock.dll".
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