Completely understandable I myself would hate to brick my own phone and same to you. So maybe ask some of the users with the 128gb model to get the kdz from LG's sever using the url in some of the logs when updating through lg bridge. which was what i did to get the kdz for my h932. The log itself its a bit hard to find but ill link the thread I used to get it shortly. In short there will be a folder in the program files. Once in the program files (not the x86 folder) and there should be a LG electronics folder with more folders in there. If the person tried to update through lg bridge there would be a log that is saved in the SWupdate folder. Once there the log would contain the url to the kdz.
Ill be editing it shortly with the link to the thread where i got this from.
Hi R800x_user, thanks for your quick reply. Unfortunately I do not have yet this phone (I am trying to decide whether to buy the 128 Gb version or the 64 Gb version according to this point), otherwise I would have tried to figure out it myself according to your suggestion. Looking forward to read what you are about to share.