CM12.1 or any AOSP ROM if coming from D80130B? - G2 Q&A, Help & Troubleshooting

So, I've been reading a whole load about the G2 D801. I have stock rooted with TWRP Lollipop D80130B. What do I have to do in order to flash CM12.1 or any AOSP ROM if coming from Lollipop. I was reading something about flashing a Lollipop bootstack and any ROM, but I need a more thorough explanation. Just got this phone and I'm not trying to brick it lol. Anyone explain to me, please?

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[Q] Can I install Omni KK over the stock Rooted Lolipop Nexus 7 (2013) FLO

Hey guys I have not seen this in the Q&A section and I want to make sure I do it right.
I only recently rooted my Nexus 7, been running stock but decided I wanted to have Multi Windows like I have on my Note 4. I have not decided on a ROM as I was looking for the best one so I am still running Stock Rooted 5.0.2 I saw Omni ROM and I think that this would be the best ROM to attempt this as I tried the Xposed method and of course got the boot loop.
I see that currently on OmniROM.com that this device is still running on KK 4.4.4 according to the nightlies. I assume I would need to find a KK stock ROM and flash it on to my Nexus to downgrade back to KK in order to install this ROM, or will this install with TWRP even though I'm running Lollipop?
If so does someone have a quick link to the Stock KK files? I used Wug's Nexus Root Toolkit to root my device as I did not feel like going through the same hassel as when I rooted my Droid RAZR so I would just tell that to use those files instead.
I am always flashing ROMs on my Note 4 but I have never gone backwards and I think it was possible to install KK ROM once you upgrade to lolly but not use a lolly ROM if your still on KK.
Soulforged666 said:
Hey guys I have not seen this in the Q&A section and I want to make sure I do it right.
I only recently rooted my Nexus 7, been running stock but decided I wanted to have Multi Windows like I have on my Note 4. I have not decided on a ROM as I was looking for the best one so I am still running Stock Rooted 5.0.2 I saw Omni ROM and I think that this would be the best ROM to attempt this as I tried the Xposed method and of course got the boot loop.
I see that currently on OmniROM.com that this device is still running on KK 4.4.4 according to the nightlies. I assume I would need to find a KK stock ROM and flash it on to my Nexus to downgrade back to KK in order to install this ROM, or will this install with TWRP even though I'm running Lollipop?
If so does someone have a quick link to the Stock KK files? I used Wug's Nexus Root Toolkit to root my device as I did not feel like going through the same hassel as when I rooted my Droid RAZR so I would just tell that to use those files instead.
I am always flashing ROMs on my Note 4 but I have never gone backwards and I think it was possible to install KK ROM once you upgrade to lolly but not use a lolly ROM if your still on KK.
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I don't think anyone has done a compatibility check to see what happens if you run a 4.4 build on a device with 5.x bootloaders. It might work, it might do weird things (usually with sensors/wifi)
Multiwindow never got merged, if you want it you'll have to build for yourself and cherrypick it. There were some remaining issues with the patch we never had time to fix, we got too busy with other stuff, and xplodwild wants to rewrite the whole thing after finding a better way to implement it.

Resurrection Remix Hangs At LG Logo

So I follow the instruction, flashed the bumped bootstack, the resurrection remix rom and recommended gapps, but no matter how many times I tried, the phone simply hangs at LG logo. Does anyone knows what the issue might be? Oh, my model is d800.
On d800 you need the loki LP bootstack, but be sure to flash back to bumped before you flash a stock based rom like cloudy
kansasboy001 said:
On d800 you need the loki LP bootstack, but be sure to flash back to bumped before you flash a stock based rom like cloudy
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I have tried using loki lp bootstack but when I do I just get an error message when flashing the rr rom zip.
Make sure you have the 5.5.5 version. It is NOT at the bottom of the list on afh. 5.5.5 will not error

Lg G2 VS980 wont go past Lollipop for me?

I need some help, anyone, please! I have a Lg G2 VS980, rooted supersu by chainfire version 2.79 latest, i guess. twrp 3.2.0-1 by blastagator, and running resurrection remix 5.4.7(Lollipop 5.1.1) from stock rom VS98024a which i pushed with lgtool14, i believe. From stock VS98011a which i also installed a year ago when my ParanoidAndroid os Lollipop rom 5.1.1 just stopped working all together dont know why, still. tried flashing over that with lollipop CrDroid rom Lollipop 5.1.1 when the phone bricked. So I proceeded to start from scratch again learning as i go, im kinda good like that sometimes. so i did all of this all is working well and good again, except for one thing, when I try to flash any custom marshmallow even nougat roms they install like the lollipop ones fine, matching micro Gapps packages every time for marshmallow and nougat roms. wipe the dalvik and cache properly, all is good til reboot of the system. Lg logo comes up then black screen and nothing else ever, Ive let it sit for hours and nothing. i dont know what i am missing here i know its possible to go past lollipop but im at a loss here. ive searched til my eyes bleed but there is no comprehensive guide on how this is accomplished and what to do with the black screen issue im facing. i dont know if i need to do a bootstack change or something else i dont know about. If i could get some guidance here maybe a solution to this issue. hell i dont care if i got to start from scratch again. something guys. if you need any info i havent provided ask. and yes i have all the proper latest drivers, adb, fastboot, and even latest android studio from google, which i dont have a clue as to how to use. im not a noob but by no means a developer, lol.

Custom rom doesn't boot

Hi Guys
I have my Galaxy S5 now +- 3 years, and use a custom rom about 2 years now...
Until now, I'm unable to boot any custom rom, everything freezes at the boot screen...
I was using Resurrection Remix Nougat, but can't update it, not dirty and not clean.
Today I flashed a stock rom with Odin, and I can't boot any custom rom except the stock rom...
Can someone help me please?
thanks in advance!
Check the bootloader and modem, if it's the correct version. Otherwise, recovery might be the culprit. Nougat ROMs are kind of sensitive to older basebands, though results might actually vary.

Update rom from MM to N (custom rom)

Hi everyone, English isn't my main language so sorry if i do any mistake on my writing.
I have the Resurrection remix custom rom (6.0.1) and i want to update and get the Dirty unicorns rom (7.1.2) so i want to know if i must do something before flashing the rom (like update to 7.0 flashing a stock) or is that simple as flash the custom even if is another android version, i dont want to brick my phone or something like that, i'm kinda noob for this things My model is XT1641 dual sim, and i have been looking for a good rom and i think that DU is a good one, anyways thanks for helping me.
Plestar said:
Hi everyone, English isn't my main language so sorry if i do any mistake on my writing.
I have the Resurrection remix custom rom (6.0.1) and i want to update and get the Dirty unicorns rom (7.1.2) so i want to know if i must do something before flashing the rom (like update to 7.0 flashing a stock) or is that simple as flash the custom even if is another android version, i dont want to brick my phone or something like that, i'm kinda noob for this things [emoji14] My model is XT1641 dual sim, and i have been looking for a good rom and i think that DU is a good one, anyways thanks for helping me.
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Click to collapse
Nrml flashing couldn't make any problem that to be said from nougat to oreo since for now they have same baseband ver. but for you definitely flash stock rom first(nougat) via adb or twrp both work fine. There is difference between baseband in mm and nouhat and will create problem to you in future
Sent from my Moto G4 Plus using Tapatalk
Plestar said:
Hi everyone, English isn't my main language so sorry if i do any mistake on my writing.
I have the Resurrection remix custom rom (6.0.1) and i want to update and get the Dirty unicorns rom (7.1.2) so i want to know if i must do something before flashing the rom (like update to 7.0 flashing a stock) or is that simple as flash the custom even if is another android version, i dont want to brick my phone or something like that, i'm kinda noob for this things My model is XT1641 dual sim, and i have been looking for a good rom and i think that DU is a good one, anyways thanks for helping me.
Click to expand...
Click to collapse
As the post above states ensure you flash the stock nougat ROM before flashing nougat custom ROM. Flash stock nougat, reflash twrp, wipe system, data, cache, ART cache and then flash custom ROM.
DgnrtnX said:
Nrml flashing couldn't make any problem that to be said from nougat to oreo since for now they have same baseband ver. but for you definitely flash stock rom first(nougat) via adb or twrp both work fine. There is difference between baseband in mm and nouhat and will create problem to you in future
Sent from my Moto G4 Plus using Tapatalk
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Thank you, helps a lot!
As others have said, I would like to say you should update to N. As otherwise you might face a few issues namely baseband and fingerprint. The problem is a big MIGHT but I would recommend updating first

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