A detailed Q & A thread... - G2 Q&A, Help & Troubleshooting

Hi,
Coming from Nexus line, I find that LG has its own way of understanding and information is not that complete like in other phones .
I think we need to have a Q & A thread answering these questions :
A detailed description of LG G2 variants.
How do I root?
How do I install a custom recovery like Cwm or Twrp?
How do I backup and restore efs?
How do I unlock bootloader?
How do I update recovery version ?
How do I turn back to stock firmware?
What does LG do to find if you have voided the warranty?
I have found most of the answers but if someone is good in explaining maybe he can put the feedback on these questions or add some more...

Related

[Q] TWRP on LG G2 D802

I just bought the international version (D802) of the LG G2 and i'm doing a bit of reading up on rooting the phone before I start playing with it. Can anyone tell me which of the .img files is suitable to download from this thread (http://forum.xda-developers.com/showthread.php?t=2449670) for my phone?
I assumed the Korean version is not the same as the international version?
(sorry for not posting this question in the thread I mentioned, but as a new user it says I don't have permission to post in the developer section)
Thanks.
seventy5 said:
I just bought the international version (D802) of the LG G2 and i'm doing a bit of reading up on rooting the phone before I start playing with it. Can anyone tell me which of the .img files is suitable to download from this thread (http://forum.xda-developers.com/showthread.php?t=2449670) for my phone?
I assumed the Korean version is not the same as the international version?
(sorry for not posting this question in the thread I mentioned, but as a new user it says I don't have permission to post in the developer section)
Thanks.
Click to expand...
Click to collapse
I also have the 802.
I've managed to root my phone using the method here. It detected my phone as the ATT/TM variant so I reckon it is similar at least on some level. I had no issues with the IOroot.
There is another thread in the General forum that says TWRP doesn't work though.
Thanks, I read the rooting guide and it looked straight forward enough. But the twrp guide didn't mention the 802, so I just wanted to make sure I flash the correct one.
I was just reading that thread you mentioned in the general section. It still leaves me a bit confused, as to which one, if any, works. I've been saving for months for this phone, so the first thing I want to do after rooting is make a backup!

Where is the F.A.Q topic for Note 3??

Hi all, I recently bought the Note 3 and it is the 1st Samsung device I've owned. So I'm not familiar with Samsung devices. I searched in this forum but there is no FAQ topic to start up. Now I want to root my phone and then flash custom ROM/custom recovery etc... What I have to do before start? Unlock something? Backup whatever?
Please kindly show me all steps need to do beforehand, or show me the topic I should read before start.
Thanks so much.
vndnguyen said:
Hi all, I recently bought the Note 3 and it is the 1st Samsung device I've owned. So I'm not familiar with Samsung devices. I searched in this forum but there is no FAQ topic to start up. Now I want to root my phone and then flash custom ROM/custom recovery etc... What I have to do before start? Unlock something? Backup whatever?
Please kindly show me all steps need to do beforehand, or show me the topic I should read before start.
Thanks so much.
Click to expand...
Click to collapse
Root here there's 2 ways to root one will trip knox one will not if you don't care about knox you can flash anything you want, if you do care about knox you can't flash recovery or roms http://forum.xda-developers.com/galaxy-note-3/orig-development
If you have n9005 roms are here http://forum.xda-developers.com/galaxy-note-3/development
Or n900 http://forum.xda-developers.com/galaxy-note-3/galaxy-note-3-exynos-android-development
And all you need to know is here http://galaxynote3root.com/
Hope this helps

noobs want to root Note 4 n910cxxu1coi4 5.1.1 phones

My friend and I are noobs and want to root our Note 4 - n910cxxu1coi4 phones running 5.1.1. There has not been a custom kernel released (to our knowledge) and we wanted to know where there is documentation on what files we need, including version of ODIN to walk through the process.
We definitely need step by step instructions; some of the documentation we've come across leave steps out, or are pretty unclear. We've asked Max Lee of High on Android for assistance and he said we'd need to get a custom kernel, back up with TWRP and that he's not seen anyone root our model on 5.1.1 n910cxxu1coi4 yet. We surely cannot be the first.
All help appreciated!
pandanc
Hello,
Welcome to XDA.
Look in the thread linked below, in post #1579 there are links posted for different kernels that will root your device on COI4 /COH4 firmware, find one to flash through Odin.
http://forum.xda-developers.com/not...lollipop-5-0-1-multiple-t3028939/post63185310
To better assist you with finding the information to do that, this thread will be move to your device Q&A forum, you can ask any questions you need to find what you are looking for there, it is linked below.
http://forum.xda-developers.com/note-4/help
The experts there may be able to help. Good luck.

Need help with my Note 3.. can I use stock kernel with a custom ROM ?

Hey guys ..
I need a real help here.. since I'd neither rooted a phone nor installed a custom ROM before.. Its also my first thread here in xda :laugh:
and I'm now about to do so with a used "Note 3 N9005" which I've bought recently.. now I want to install the "Phronseis latest Note 5 Marshmallow ROM port"
knowing that this device condition now is "Official and not rooted" with the latest official Lollipop 5.0 from Samsung via OTA update.. and the Knox is tripped showing "0x1 (4)" in the bootloader..
My problem now is that when I've read the step by step guide of the installation process I found myself lost because of some terms that I have no idea about which made me afraid of messing the things up or bricking the phone :crying:.. for example they talked about the "kernel" and I don't know if I could just ignore this part and go through the steps resulting in installing that ROM with the stock kernel??
and all that brings other questions to my mind :
1-what exactly should I do to get this phone from this official state to the desired one?
2-what about the battery life and screen on time? will it be affected by that ROM or the kernel that going to be used with it??
3-will I be able to go back to official state anytime later by flashing the official Kitkat ROM with Odin for example?
4-will this thing change my IMEI or CSC and if it does will it be irreversible?
Any help is appreciated but please there is no room to give "opinions".. because in my condition I need "facts" :good:..
Thank you in advance
A rom has instructions start by reading them .
You can revert to stock by flashing via Odin.
Facts there are a number of faqs and stickies.
Opinion unless you understand the basics flash nothing.
http://forum.xda-developers.com/galaxy-note-3/general/samsung-galaxy-note-3-sticky-roll-t3237249
Rule 1 backup EFS
Rule 2 read the instructions .
Rule 3 Understand the instructions .
Regarding the rom you want to flash all the details re kernel etc are in the OP page 1.
Sent from my SM-N920C using XDA-Developers mobile app
Root
Install custom recovery
Use custom recovery to backup your current rom.
Install custom rom as per instructions .

SM-G935FD Basic Questions

Hi, so i am getting my SM-G935FD tomorrow and i am already planning on what to do. I have used the search button to find relevant answers but its leading to unrelated topics and i am hoping that by posting in the Q&A section i would be able to find answers(Maybe) to my questions.
1. Should i update to the most recent bootloader and firmware once i get my device if i plan to install custom roms,kernel, etc?
2. If i flash stuff like pda,modem and csc through odin, will i lose my warranty? Or is there a way to reset flash count?
3. Stock Flashable Debloater? Is there any?
4. Lastly is there a flashable zip to carrier unlock the device?
I would greatly appreciate all the help i can get, and will contribute soon since i am already a bit rusty.
Use the search button again. I found the answers to all your questions in less than a minute. You can too.

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