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If you still encounter the “Contact System Administrator” error, try downloading the KDZ file for your specific LG device from the LG Mobiles website.Ħ. Follow the on-screen instructions to complete the firmware upgrade process.ĥ. Launch the LG Flash Tool and select the appropriate firmware for your LG device.Ĥ. Connect your LG phone to your computer using a USB cable.ģ. Download the LG Flash Tool from the official website.Ģ. To resolve this issue, follow these steps:ġ. However, sometimes you may encounter the “Contact System Administrator” error message.
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The LG Flash Tool is a powerful tool for upgrading your LG phone’s firmware. select upgrade or whatever and go and make a cup of tea.Introducing the baffling hurdle: encountering the “Contact System Administrator” error when using LG Flash Tool 2014. if it does breathe a big sigh of relief.ĥ- select your KDZ file and drag to the LGUP window with BIN selected. Let that complete.Ĥ- Connect the USB cable, THEN open the LGUP app. Let it complete.ģ- install the LGUP DLL, then when that has finished install the LGUP app itself. Now a little install dialogue will appear on your PC. (if you don't get this message there is the option on the little 3 dot menu top right of the connection options screen on the G4) Then you should receive a message on your phone screen asking if you would like to install the USB drivers. Your G4 should appear as accessible drives on your machine. plug in the usb cable, make sure you have selected MTP on the connection settings. This includes any USB drivers that my have previously been installed (they will show up in your installed programs).Ģ- Now install the specific USB drivers for the LG G4. this didn't workġ- Uninstall all instances of LG software on your PC. LGUP - yes, you guessed it wouldn't see my handset! LG support tool - wouldn't see my handset. LG Bridge, installed on my machine - wouldn't see handset. None of the tips in the OP worked for me. How to root LG G4 H815 on Android Marshmallowįor those who have been having trouble getting LGUP to see their handset. This method does not install TWRP app on your phone, all you need is a reboot app from the play store that will re-boot you into recovery. If you want to install TWRP permanently, copy your TWRP image to your mobile "while you are in TWRP RECOVERY mode" then press install then select images then select recovery NOT BOOT then swipe to flash. That will re-start your phone straight into TWRP - You can transfer files to and from your computer while in recovery. Make sure you open a command prompt in the ADB folder "VERY IMPORTANT" and type:įastboot boot TWRP.img dont forget the. I always put TWRP.img in the ADB folder - so if I want to boot into TWRP with out installing it this is what I do: Make sure you have ADB and Fastboot installed. There is no need to enter download mode! LGUP will do it for you. If you are worried about losing your data after a full wipe, why not use the LG Bridge software to backup and restore. Make sure you select REFURBISH this will do a full wipe, tick BIN file. TO GO BACK TO LP FROM MM - Open LGUP on your computer, click on FILE PATH and point it towards your LP KDZ. Select REFURBISH and make sure BIN file is ticked. Now open LGUP again - you will notice that the MM KDZ will still be showing in the FILE PATH section. TO DO A FULL WIPE AND INSTALL MM - Open the LGUP on your computer. MAKE SURE YOU HAVE CLICKED UPGRADE! This will update you from LP to MM with out wiping any of your info. TO UPGRADE TO MM from LP - make sure BIN file is ticked and in the File Path point it towards the MM KDZ you have downloaded.
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Restart my phone and woow it show correctly in LGUP and i can refurbish my phone. I install LG Bridge to test, and nothing seem to work.Īfter make some test and search, i find some info modified by S3V3N into his rom (cust partition) that he have modify into this file: Reboot my phone, remove battery and anything else don't work. THANK YOU FOR THIS Killerdog:good: <~~~To Modify This File You Must Have Root!!įor me it's show in LGUP as unknow device. Take out the battery and then put it back in.let the phone restart on its own. Start LGUP, if it does not see your phone DO NOT DISCONECT, DO NOT RESTART OR TURN OFF LGUP. take the back off your mobile so you can get at the battery.
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Start LGUP prog on your computer "make sure your phone is plugged in"ĪRE YOU HAVING TROUBLE WITH LGUP NOT SEEING YOUR MOBILE? Make sure you have downloaded the required KDZ file MM or LP LGUP WILL FLASH YOUR KDZ filesĭownload LGUP from here or here or here thank you hyelton for this link :good: