Easiest way to go back to stock ROM? - LG K20 Plus Guides, News, & Discussion

Im currently on Lineage ROM, and i got a new phone so i need to flash the stock ROM on this K20 Plus, what would be the easiest way to do it? MetroPCs model.

I know you may have long since found the answer, but for others who may be curious simply search for the official LG software suite PC program and install it. You will need the phone device drivers. There is a thread here in the xda K20 plus ROMs and development forum with links to the necessary files and some basic guides. You'll also need to download the official stock image from the lg-firmwares.com or any such similar host sites. Although I believe the official and recent version of the LG backup/restore suite can download the image file automatically but I may be wrong. The crucial thing is to install all the necessary drivers on your PC and ensure the phone can be recognized on it. I haven't kept up with any of the latest releases to know if maybe the suite does the downloading and drivers setup with ease. But more or less the whole stock reflash process is the same and not difficult.

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[Q] Does anyone know a tutorial for mac users install ICS on SG9100?

Hello guys, I'm a mac (OSX 10.7.3) user and would like to install ICS on my SG9100. Does anyone knows a trustworthy tutorial that suites my needs?
Thanks in advance.
Unfortunately the easiest way is to use a PC and update through Kies, although Kies can be a pain to use also. The other option is to root and flash an ICS ROM.
There are various ways to do this, all which are explained throughout the forum.
Hey,
first, there's Kies for Mac...
http://www.samsung.com/uk/support/usefulsoftware/KIES/JSP
It suppose to provide firmware updating if your device has been intact (you got it without custom rom / rooted).
secondly,
there is Heimdall which is open source alternative that should be able to flash roms. though I must admit your easiest solution is PURE bootcamp (no parallels/virtualization) and ODIN if your not going the 100% samsung way.
I was going to suggest Kies for Mac but the mac version does not appear to support firmware upgrades, so I had to borrow a friends PC. I then went ahead and rooted and Flashed a vanilla ICS, but that's by the by.

[Q] Rom opinion/help?

My stats: Fairly comfortable with computer and other forms of tech, but have only recently began diving into the Android system. I have limited development/programming experience, however, I'm not a novice or noob to it but definitely not advanced. Importantly for those willing to help I understand most terminology and can follow instructions. Thanks in advance.
Phone Stats: AT&T Samsung Galaxy Note SGH-i717
Android Version: 2.3.6 (Gingerbread)
Baseband Version: i717UCLF6
Kernel Version: 2.6.35.11
Build number: GINGERBREAD.UCLA1
Root Access: Yes
Stock Rom: Unsure, bought online.
Carrier/Service Provider: Straight Talk (U.S.) Phone was previously used on the AT&T network exclusively, and done so with an AT&T provided SIM card. After I purchased it, I ordered a new SIM card from Straight Talk (U.S.) and reprogrammed the APN settings under their instruction in order for my phone service to work correctly, and have had no problems with that.
I can't stand being on Gingerbread any longer. I guess, since my phone is an AT&T phone but I'm using it through Straight Talk I can't get any of the OTA updates. I've tried downloading the OTA's several times, both, prior to and post Root access without success in either case.
So here are my questions:
1. Am I doing something incorrectly which might be keeping me from getting OTA updates? Please remember, I've tried downloading the OTA's several times both with and without Root Access and the conclusion is the same each time: "No Updates Available At This Time. Your Phone Appears To Be Up To Date. Try Again In 24hrs."
2. Is my only option at this point to manually update to a newer firmware? If so, should I update to a newer STOCK version or a custom ROM version?
3. If a manual update is the option, after reading my above outline of my own experience with the Android system, what would be way to go? Simple, not overly complex yet doesn't assume the user is either a complete moron or can write code in his sleep. I've checked into a couple of options. Rom Manager seems like it would be a nice route to go, but in the Recovery Setup portion I basically get told I can't use that application because my specific device isn't supported.
I checked out GooManager and, unless it's just me, it seems like it's an app that likes to do all the work without telling you what it's doing exactly, but when it does ask me or tell me information, I'm not always sure how to answer or react to it's warnings.
Plus, I've noticed that sometimes when downloading a ROM, sometimes I have to "flash" the gapps myself and other times I don't.
4. Is it easier to download everything separately and apply them one by one, for example the ROM then gapps then Kernal...etc? Or look for something that has it all in one package?
I have a laptop in which I can download/transfer programs and apps between it and my Note so download space and internet access isn't a problem.
Also, it most likely isn't information that is going to help in anyway, but I live in Oklahoma, United States of America.
Thanks for all the feedback...UnluckyOnion
I'm not answering these in any specific order,
As I kinda just sped read thru most of it...
Since you're rooted, or know how to, goomanager is superior to Rom manager.
It supports this device and has a current version of twrp to install, instead of an outdated cwm.
Just use it to install recovery, then boot your device into recovery and use that. Not the app. You'll be provided with much more information and this is the preferred way of flashing.
Official Updates are always "manual" either with a less than user friendly program called kies, or with a less annoying way (which you may be familiar with seeing as you've rooted) ODIN. Both pc programs used with the phone in download mode connected with usb cable.
Gapps are only needed to flash separately with an aosp based Rom as it's against Google's T.o.S. to include them in am entirely aftermarket compiled firmware, however if it's a Modified version of a stock based Rom (in this case TouchWiz) they can be, and thusly are, included within.
Official or custom is up to you really.
If official..just grab the .tar and flash it with Odin.
If custom, obtain a custom recovery either the way i mentioned above or downloading a .tar of twrp and use Odin to flash that.
Once you have a custom recovery, you'll simply be able to flash a Rom from there.
Roms include a kernel, if you want to use a different one than what is included, that would be flashed after the Rom.
After flashing you'll have to input your carriers apn settings in again.
studacris said:
I'm not answering these in any specific order,
As I kinda just sped read thru most of it...
Since you're rooted, or know how to, goomanager is superior to Rom manager.
It supports this device and has a current version of twrp to install, instead of an outdated cwm.
Just use it to install recovery, then boot your device into recovery and use that. Not the app. You'll be provided with much more information and this is the preferred way of flashing.
Official Updates are always "manual" either with a less than user friendly program called kies, or with a less annoying way (which you may be familiar with seeing as you've rooted) ODIN. Both pc programs used with the phone in download mode connected with usb cable.
Gapps are only needed to flash separately with an aosp based Rom as it's against Google's T.o.S. to include them in am entirely aftermarket compiled firmware, however if it's a Modified version of a stock based Rom (in this case TouchWiz) they can be, and thusly are, included within.
Official or custom is up to you really.
If official..just grab the .tar and flash it with Odin.
If custom, obtain a custom recovery either the way i mentioned above or downloading a .tar of twrp and use Odin to flash that.
Once you have a custom recovery, you'll simply be able to flash a Rom from there.
Roms include a kernel, if you want to use a different one than what is included, that would be flashed after the Rom.
After flashing you'll have to input your carriers apn settings in again.
Click to expand...
Click to collapse
Thanks for all the information and help...more importantly, thanks for taking the time. I have ODIN on my laptop and have always used it when needed but I saw a highly rated and positively commented Mobile version of ODIN in the Play Store that claims you can do everything from the convenience of your phone which sounds appealing, however it's kinda pricey, especially if it doesn't work. Would you recommend the mobile version or PC version? Also, I have been doing a lot of ROM and Root research as of late, and wondered something...Why so many different Galaxy Note's? It seems as though I have the least popular version with the most popular being from the Galaxy Note "N" series, specifically the N7000. If I download and use an application that says it's meant for the Galaxy Note N7000 and I use it on my Galaxy Note SGH-i717, what will happen? Nothing, something, brick, work perfectly, etc...?
The N series is not carrier branded and sold internationally, so naturally it's more popular compared to a north American variant.
DO NOT FLASH ANYTHING FOR THE N7000
IT WILL BRICK YOUR PHONE.
The international version has a different cpu, gpu and antenna, for north American LTE bands to work those key components needed to be different.
So I say again just to stress:
DO NOT FLASH ANYTHING FOR THE N7000
IT WILL BRICK YOUR PHONE.
As for Odin, you're either going to flashing a stock firmware, or if you choose a custom Rom, you'll only need Odin once to flash TWRP. Then all the rest will be done in recovery on the phone itself. No need for it after you've either manually updated to the latest stock rom, or flashed a recovery for use of custom roms
So... imo mobile Odin, though being nifty, is a bit pricey for how little you'll need it, whereas it's free on pc.
I don't think mobile Odin is even available for the i717. It's not listed in supported devices.
I tried installing mobile odin and it's not supported
Thanks for the reply. And an even bigger Thanks for downloading the app and checking. I admire sacrificing your own work just to help me out. So what about yourself? Would you suggest, advise or heed caution to anymore of my questions?
By the way, what are you two running?
As long as you read the op of threads and all other important posts that follow BEFORE ever touching your phone, I'd say try a custom Rom...if you decide you don't like any of them, you can Odin flash the stock jellybean firmware at any point.
I myself am running unofficial aokp compiled and posted by a fellow team member BlownFuze.
Oh yeah, how's it running? Nice and stable or crawling with bugs? Any key selling points?
Sent from my SAMSUNG-SGH-I717 using xda app-developers app
I'm on the stock 4.1.2 release and rooted.
Everything works, no bugs, but battery sucks. Even after removing and freezing useless processes a stock rom will never be as light and battery friendly as a custom rom.
I just upgraded to the same version. Planned on rooting over weekend. Any success since your last post? Do you nave preferred Root method?
Thanks
Unlucky Orion
Use Odin to flash twrp
Newest version of twrp "should" Sr that you're not rooted and ask if you would like to do so within recovery before booting back into the os.
If not, there's links to an su.zip to flash in twrp for root.
studacris said:
Use Odin to flash twrp
Newest version of twrp "should" Sr that you're not rooted and ask if you would like to do so within recovery before booting back into the os.
If not, there's links to an su.zip to flash in twrp for root.
Click to expand...
Click to collapse
Hey man, thanks, it worked like a charm. I appreciate the help from both you.

Need to restore LG E400 L3 with stock Gingerbread

My phone was soft-bricked but I managed to install Cyanogenmod on it, which is fine, but I can't do a network unlock and looking around it seems I really need the stock Gingerbread 2.3.6 ROM installed.
I found a kdz file but 1) I have no idea if it's good 2) All the tools I could find to flash a kdz image require Windows, and an XP VM doesn't see my phone on USB for some reason.
I came across this thread and would like to know what peoples' success rates are:
http://forum.xda-developers.com/showthread.php?t=2256583&nocache=1
One guy posted that it soft-bricked him.
Alternatives are at the moment hope that someone can link/make me a stock backup made with clockwordmod or see if I can get a cheap one on ebay and grab the image from that.
Unless you guys got some other ideas?
Thanks for any info

[Q] Downgrade help

Firstly, I apologize if this has been asked. And I'm sure it has. Before we get into the " do your research" rebuttals, I have been trying to get this done for about 2 weeks now. What i'm trying to do is root my phone and install a custom recovery. This is my first LG phone ( im coming from Samsung). I am on Lollipop. I understand that I have to revert back to 12b. So as I do this, I see that we use the LG flash tool. I am having a terrible time in getting this to work even as I follow the instructions on youtube ( although im starting to wonder if these are out of date). Main Issues tend to be that they call for a .kdz file and all I find for downloading are .tot files. What is the difference here? Another Issue im running into is the fact that I cant even get signed into the toolkit. I keep getting an error message. Unable to login and what not. I'm guessing it has something to do with the .dll file? Anyway. I'm not a pro by any means, but I just feel like I should be having some rom fun by now Can I get anyone willing to help me further please??? Cheers ahead of time!!!!
mattym320 said:
Firstly, I apologize if this has been asked. And I'm sure it has. Before we get into the " do your research" rebuttals, I have been trying to get this done for about 2 weeks now. What i'm trying to do is root my phone and install a custom recovery. This is my first LG phone ( im coming from Samsung). I am on Lollipop. I understand that I have to revert back to 12b. So as I do this, I see that we use the LG flash tool. I am having a terrible time in getting this to work even as I follow the instructions on youtube ( although im starting to wonder if these are out of date). Main Issues tend to be that they call for a .kdz file and all I find for downloading are .tot files. What is the difference here? Another Issue im running into is the fact that I cant even get signed into the toolkit. I keep getting an error message. Unable to login and what not. I'm guessing it has something to do with the .dll file? Anyway. I'm not a pro by any means, but I just feel like I should be having some rom fun by now Can I get anyone willing to help me further please??? Cheers ahead of time!!!!
Click to expand...
Click to collapse
go to the general verizon forum and look at op #2 in my sticky Reference thread. all the drivers, tools, directions, and links are there.
i prefer to use the TOT method, have never used the kdz, but each uses a different flash tool and instructions.
the instructions in the flashing stock threads linked there are very good.
try following those threads, and forget youtube.
after you pick a direction, and run into issues, post back with which method, and your issues. then it will be much easier to help, rather than me posted a step by step novel that for the most part already exists.
mattym320 said:
Firstly, I apologize if this has been asked. And I'm sure it has. Before we get into the " do your research" rebuttals, I have been trying to get this done for about 2 weeks now. What i'm trying to do is root my phone and install a custom recovery. This is my first LG phone ( im coming from Samsung). I am on Lollipop. I understand that I have to revert back to 12b. So as I do this, I see that we use the LG flash tool. I am having a terrible time in getting this to work even as I follow the instructions on youtube ( although im starting to wonder if these are out of date). Main Issues tend to be that they call for a .kdz file and all I find for downloading are .tot files. What is the difference here? Another Issue im running into is the fact that I cant even get signed into the toolkit. I keep getting an error message. Unable to login and what not. I'm guessing it has something to do with the .dll file? Anyway. I'm not a pro by any means, but I just feel like I should be having some rom fun by now Can I get anyone willing to help me further please??? Cheers ahead of time!!!!
Click to expand...
Click to collapse
There are two different flash tools. The official LG flash Tool, which requires TOT and DLL files. And the unofficial KDZ tool called "LG flash Tool 2014", which only needs a KDZ file. Use either one to get back to 10b firmware. You can then use Stump root to root it. After that, you can install TWRP Manager from Play Store. And from TWRP Manager, you can put in your phone model and it will download and install TWRP for you. If you want to, you can then follow the Jasmine rom thread to upgrade back to Lollipop using TWRP. I personally prefer to stay in 10b as I found it to be very stable and after I un-install the Verizon bloatware using Titanium backup, it is quite smooth.
Thank you both. I'll give it a try here in a bit. It helped a lot no one there to compare two completely different setups I did not know that thank you both again
acefr said:
There are two different flash tools. The official LG flash Tool, which requires TOT and DLL files. And the unofficial KDZ tool called "LG flash Tool 2014", which only needs a KDZ file. Use either one to get back to 10b firmware. You can then use Stump root to root it. After that, you can install TWRP Manager from Play Store. And from TWRP Manager, you can put in your phone model and it will download and install TWRP for you. If you want to, you can then follow the Jasmine rom thread to upgrade back to Lollipop using TWRP. I personally prefer to stay in 10b as I found it to be very stable and after I un-install the Verizon bloatware using Titanium backup, it is quite smooth.
Click to expand...
Click to collapse
UPDATE.... I am now rooted with TWRP. Once again thanks to both!!

Rooting an Alcatel 3v?

Hello there xda members, I am somewhat familiar with rooting android phones, however the last time I had done so was with was older HTC and I believe maybe it was a Sony about 2-3 years ago. I now have an Alcatel 3v and I've come to learn that rooting seems to be different on newer phones and the newer Android Oreo. I have managed to unlock the bootloader on my phone, and I have also downloaded the android sdk on my windows computer and am somewhat familiar with adb and Fastboot Commands, although I have only barely begun to understand Linux terminal commands. There is no version of twrp for my phone and I have not been able to find a stock firmware anywhere to go with the magisk method, as well none of the one click solutions have worked for my phone, including the ones requiring use of a pc and developer mode enabled. Im wondering if I can access the system folders and write to them through adb or fastboot using push / pull commands or if there is a way to make a stock boot. Img straight from my phone so I can patch it? If not is there any other possible way to root this phone? Any help would be appreciated.
Laney613 said:
Hello there xda members, I am somewhat familiar with rooting android phones, however the last time I had done so was with was older HTC and I believe maybe it was a Sony about 2-3 years ago. I now have an Alcatel 3v and I've come to learn that rooting seems to be different on newer phones and the newer Android Oreo. I have managed to unlock the bootloader on my phone, and I have also downloaded the android sdk on my windows computer and am somewhat familiar with adb and Fastboot Commands, although I have only barely begun to understand Linux terminal commands. There is no version of twrp for my phone and I have not been able to find a stock firmware anywhere to go with the magisk method, as well none of the one click solutions have worked for my phone, including the ones requiring use of a pc and developer mode enabled. Im wondering if I can access the system folders and write to them through adb or fastboot using push / pull commands or if there is a way to make a stock boot. Img straight from my phone so I can patch it? If not is there any other possible way to root this phone? Any help would be appreciated.
Click to expand...
Click to collapse
The phone is project treble compatible so you could try flashing a GSI just make sure the GSI is A-only not A/B as the phone dosen't support seamless updates. There are tons of GSIs out there with root and gapps just choose which one you like but I would highly recommend taking a backup of your stock ROM as they haven't really got firmware downloads for this phone. Also after you have rooted I would recommend locking the bootloader again so any repair shops wont find out that the phone has been rooted. There is another way which is you could dump the boot image from the phone and install the magisk manager apk. Then patch your boot image through it and flash it with fastboot and now your stock rom is rooted.
I've been having difficulty finding a way to backup my stock rom without a rooted phone... I have looked into miracle box and sp flash tool and other programs but they so far seem either dated, contain viruses or don't do what they advertise / incompatible with my phone, or need root access to show partitions etc. also, with flashing a generic system image, are they device specific or is that the whole point of project treble, how they are universally supported? I want to keep my phone as close to stock as possible but with root access. If I could find a way to backup my boot image I could go the magisk method...
Laney613 said:
I've been having difficulty finding a way to backup my stock rom without a rooted phone... I have looked into miracle box and sp flash tool and other programs but they so far seem either dated, contain viruses or don't do what they advertise / incompatible with my phone, or need root access to show partitions etc. also, with flashing a generic system image, are they device specific or is that the whole point of project treble, how they are universally supported? I want to keep my phone as close to stock as possible but with root access. If I could find a way to backup my boot image I could go the magisk method...
Click to expand...
Click to collapse
The Generic system images are universal because basically project treble separates the files that make the phone work such as the camera and fingerprint into a vendor partition which means manufacturers don't have to make new drivers to work with the new os update. The only issue on my phone which is the 3v 5099y (single sim with nfc) is that pie is very slow and laggy but everything works however oreo is very fast. I tried looking for a way to dump the boot.img but all i could find was tutorials for phones which either were rooted or had twrp. But i did find this tutorial which dumps the entire firmware although its very complicated https://android.stackexchange.com/q...nd-full-rom-without-root-for-mediatek-devices
For the cpu part though I would select mt6735 as the mt8735 is basically a rebrand
im so tired to root my alcatel 3v phone many try all method to rooting but almost field please help me

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