[G3 General] topet2k12001:
Responses 03.12.2015

Hi @mpren,

The "certification verify" error is a common error in both approaches, and I have encountered it a lot of times when I was experimenting. It is caused by various reasons depending on what you did or did not do, so I feel that it is wrong to help another person by giving a single answer (it's called "jumping to conclusions/assumptions" - this is not the right way of helping another person to troubleshoot).

What I did instead is to document the various causes of "certification verify" error and put up a "Troubleshooting and Q&A section". :) Please read through it (it's located at Page 1 of this thread); I always update it when other members share their encounters. Just try to find which one may have caused your problem and you can start from there.

If you can't trace what caused the problem, the last resort is to start all over. At this point there are two (2) approaches: a "Kitkat downgrade" approach, and a "No downgrade" approach - both of which I already documented. Either approach will yield you the same result (root + "bump'd" Lollipop boot.img + "bump'd" TWRP), so it doesn't matter which one you pick.

Hi @smirdex1,

Which guide, you say? The guide on this thread. :) Please visit the First Page.

But let me ask: are you more concerned about updating to Lollipop via OTA? Does it matter? Are you willing to update to Lollipop through other means? It's the same thing anyway. :)

Hi @zmokkie,

Yes; in a nutshell, that's what the guide is telling us to do. :) But those are not the only steps involved. Please read through the how-to guide in Page 1, read through them, and follow them carefully (do not rush it, for a flawless upgrade experience).

Hi [MENTION=5296411]gelroyliao[/MENTION],

So basically:

higher value = more "sharpening" effect

lower value = less "sharpening" effect

zero = no "sharpening" effect at all

I can't recommend; it's all user preference. But if you are asking specifically what I usually choose, I would say that I disable sharpening (zero). Some people can't tell the difference, by the way.

Hi @zurny,

Thanks; I was actually trying to figure out how to do it even before you posted this. Anyway I figured it out. Thread has been renamed.

Hi @leos0000,

Yes! :) The how-to guide is confirmed to work for the D852. Please check the very first post of the thread. At the top, I try my best to update the list of confirmed LG G3 variants that work with this how-to guide. Sof far I have listed the D852G and the D852.

Hi [MENTION=4149511]Sipi1302[/MENTION],

Thanks for the feedback! I will add the D855 (the ever-famous International variant) to the list of confirmed working LG G3 variants for this how-to guide. :)

Yes, as per the "Bump" thread, you may use Flashify for the "bump'd" custom recovery (a.k.a. TWRP) as well as the boot.img. However, the reason why I kept the process steps using the Command Line is to make the steps consistent for the readers (and some readers find it less confusing because they don't have to switch tools - i.e. Command Line, then Flashify, then Command Line again). Anyway, it's all a matter of user preference. Whichever you are comfortable with, you may go with it.