Develop Bugs

[Q] What will happen when I update to android L?

I am running stock. No ROM but I am rooted, and I use Franco kernel and xposed framework, what will happen to those mods? Im afraid of brick, should I uninstall all of those including root first before updating to L... When it comes out? Please I need answers, I had soft brick before and I don't want it again.

BrickMeNot said:
I am running stock. No ROM but I am rooted, and I use Franco kernel and xposed framework, what will happen to those mods? Im afraid of brick, should I uninstall all of those including root first before updating to L... When it comes out? Please I need answers, I had soft brick before and I don't want it again.
Click to expand...
Click to collapse
You should only have to wipe, yes you will loose the mods, but they will probably be updated. You will just have to wait a month or 2.

WeRSpecialPeople said:
You should only have to wipe, yes you will loose the mods, but they will probably be updated. You will just have to wait a month or 2.
Click to expand...
Click to collapse
Wipe everything right? Like factory reset or twrp? Will I have to reinstall root/Franco?

Franco will need to create a new kernel, the old one won't work after a version update. Xposed will work if you manually flash the update; if you want ota you'll need to disable it first and revert to stock recovery.
Sent from my Nexus 7 using XDA Free mobile app

You'd have to try really hard to brick a Nexus device. What's so scary about a soft brick? Learn how to use fastboot and adb and there's absolutely nothing to be scared of.

Actually I was going from cwm to twrp and I didn't know the wipe buttons would get rid our my OS altogether..? my dumb mistake.
But I was saved by nexus 7 toolkit
Sent from my Nexus 7 using XDA Free mobile app

Yea don't worry about bricking. You will be able to restore thru nexus toolkit as long as your bootloader is unlocked. I wiped the os off my nexus 4 as well.

I just took the plunge and xposed isn't working nor is my showbox.
Android L is really cool and I can live without xposed, but showbox not working is a big hit. I just got it all setup too. Works good. No real problems.
I flashed back to stock and wiped, then upped to L
How do you flash back? Can I just flash a custom 4.4.4 ROM or do I need flash stock?

player911 said:
How do you flash back? Can I just flash a custom 4.4.4 ROM or do I need flash stock?
Click to expand...
Click to collapse
Just like you would any other ROM in recovery or fastboot. If you want stock, flash stock. If you want a custom ROM, flash a custom ROM.

player911 said:
How do you flash back? Can I just flash a custom 4.4.4 ROM or do I need flash stock?
Click to expand...
Click to collapse
Multiple choices. If you made a backup/nandroid before flashing L you should be able to restore your backup without any issues, For one thing the bootloader didn't change. You can fastboot flash the system and boot images after extracting them from the factory image then wipe cache and dalvik. Flash the whole factory image either with or without modifying the flash_all.bat (open the flash_all.bat in notepad and remove the -w which will prevent the storage from being wiped). Or... flash a custom or stock ROM. Piece of cake!

Good to know. I'm trying to hang on but we'll see

[ROM][7.1.2][OFFICIAL] LineageOS for N7105 - Help

OK, I dont want to post in the ROM area.. as far as I remember I am suppose to post here.
So I would like to install 14.1 on my note 2 I317. I did it last night.. not great results, but it was the root thing.
I am not sure the dev thread is updated on the latest way to upgrade the phone.
Anyone help? I flash the rom, then the apps (is the stock still the best option?) and then what do I do about root, because in the last few posts of the dev thread I see something about not flashing.. and flashing.
and then there is the HWC thing? am I doing this>? or no?
James

Also I am coming from way back on a rom called SLIMFAST 4.4 - If I want to carry over apps and data.. what is the best way to do that? or can I really?
James

You will carry the data (music, videos etc.), but app data no.
I don't recommend you to flash HWC as you are beginning with this and it is still test stuff.
Anyway steps:
1. Flash latest version of TWRP.
2. Backup. (In case something goes wrong)
3. Wipe dalvik, cache, system, data.
4. Install LineageOS.
5. Install Google Apps. There aren't 'the best'. It all depends on you which you want to use/how much google stuff you want on your phone.
6. Install magisk for root - http://tiny.cc/latestmagisk
7. Reboot.

Biker1bob said:
Also I am coming from way back on a rom called SLIMFAST 4.4 - If I want to carry over apps and data.. what is the best way to do that? or can I really?
James
Click to expand...
Click to collapse
Option58 said:
You will carry the data (music, videos etc.), but app data no.
Click to expand...
Click to collapse
Why not?!!
He can backup apps and apps' data using Titanium Backup app.

Biker1bob said:
Also I am coming from way back on a rom called SLIMFAST 4.4 - If I want to carry over apps and data.. what is the best way to do that? or can I really?
James
Click to expand...
Click to collapse
Or u can just backup APKs using this:
https://play.google.com/store/apps/details?id=mobi.usage.appbackup
And restore them with just one click using this :
https://play.google.com/store/apps/details?id=com.sharon.oneclickinstaller
But if you want data too, Titanium is good

well since the install the first time did not work well I restored the backup I did.. Now tonight I was trying to use the gps, and it is now not working since I restored the backup?
Is it possible something happened there??
When you restore a backup ( I did a complete with everything) I dont have to wipe stuff out first do I?

Biker1bob said:
well since the install the first time did not work well I restored the backup I did.. Now tonight I was trying to use the gps, and it is now not working since I restored the backup?
Is it possible something happened there??
When you restore a backup ( I did a complete with everything) I dont have to wipe stuff out first do I?
Click to expand...
Click to collapse
well, the partitions that is going to be restored are wiped by default before restoring the backup, so there's no need to wipe, it might be a bug in the ROM and you didn't notice it before.
anyway, you can try wiping manually then restore.
btw, your thread name is confusing, it's better not to right in that form......[ROM][7.1.2][OFF..........when it's a normal help thread.

well I am not sure it is a normal help thread.
For 2 years I have been using slimfast 4.4 no issues - and then I decided to try this rom, and it breaks my GPS.
I have restored 3 different backups I had of slimfast 4.4 dating back to January 2015. None of them does the GPS work.
Before I tried the 7.1 upgrade I was locking 22 satellites in about 45 seconds. Now I cannot lock to 1.
Is there an issue with this rom that would break the GPS to the point that no matter what rom is in it wont work?
Or can someone give me a hint on what to try next? I can try and re-do the upgrade via Option58s instructions.
James

Biker1bob said:
well I am not sure it is a normal help thread.
For 2 years I have been using slimfast 4.4 no issues - and then I decided to try this rom, and it breaks my GPS.
I have restored 3 different backups I had of slimfast 4.4 dating back to January 2015. None of them does the GPS work.
Before I tried the 7.1 upgrade I was locking 22 satellites in about 45 seconds. Now I cannot lock to 1.
Is there an issue with this rom that would break the GPS to the point that no matter what rom is in it wont work?
Or can someone give me a hint on what to try next? I can try and re-do the upgrade via Option58s instructions.
James
Click to expand...
Click to collapse
yes it's a normal help thread, your thread name is more like a ROM thread name!, however...
did you try a clean install of the kitkat rom first?
maybe something is making a conflict or whatever I'm not sure..
try a clean install and see if the GPS is fixed.

clean install of 4.4 and no gps. apps that can show if the hardware is there, so it is present and available? but no app gets a lock.. on even 1 satalite.
James

Biker1bob said:
clean install of 4.4 and no gps. apps that can show if the hardware is there, so it is present and available? but no app gets a lock.. on even 1 satalite.
James
Click to expand...
Click to collapse
I'm not sure, last thing to try is Flashing stock ROM, if that didn't help it, then it's a hardware damage.

Best OOS kernel ?

Hi, i'm looking for the best kernel for battery/performance ratio.
Already used stock but i wonder if there is something better.

I would say the best one is blue spark kernel

saucissemanger said:
Hi, i'm looking for the best kernel for battery/performance ratio.
Already used stock but i wonder if there is something better.
Click to expand...
Click to collapse
use blue_spark kernel good for performance and batrery.
using it since first beta out.

vk_singh said:
use blue_spark kernel good for performance and batrery.
using it since first beta out.
Click to expand...
Click to collapse
Will do , thanks

vk_singh said:
use blue_spark kernel good for performance and batrery.
using it since first beta out.
Click to expand...
Click to collapse
Hi one question there are some settings to applied or just flash and profit ?

ElementalX is my best choice, so far - have been using it for a few days. To me it seems as fast as blu_spark, and it has the sound settings too (which I need for playing loud enough on the fitness center's music equipment - where I work). Battery life seems to be great, but I cannot report on that until i've used it more.

Again?!? There is no"best" kernel. What works good for me may not work as well for you. There are variables. Signal, apps installed, usage patterns. Try them all and find the "best for you" kernel.
Sent from my ONEPLUS A5010 using Tapatalk

jmtjr278 said:
Again?!? There is no"best" kernel. What works good for me may not work as well for you. There are variables. Signal, apps installed, usage patterns. Try them all and find the "best for you" kernel.
Click to expand...
Click to collapse
+1.
From my point of view, the most important is : stability / smoothness / security fixes / wireguard
For me, the kernel that best suits my needs is Flash Kernel, thanks a lot to nathanchance for its really great work :good: !!

How do I get back to the stock kernel if I do not like another one?
It's easy?
I want to install another kernel but be able to return to the stock if I do not like it

Princeland said:
How do I get back to the stock kernel if I do not like another one?
It's easy?
I want to install another kernel but be able to return to the stock if I do not like it
Click to expand...
Click to collapse
You simple flash your OOS fullzip ROM.

re_endymion said:
You simple flash your OOS fullzip ROM.
Click to expand...
Click to collapse
Then I lose everything? My applications, my data... etcetera

Nope. Just don't wipe anything but dalvik&cache.

szymko1995 said:
Nope. Just don't wipe anything but dalvik&cache.
Click to expand...
Click to collapse
OK thanks. One more question ... I have a system notification to update my Op5t to the latest Oxygen OS 5.1.2, how should I do to update, what steps should I follow? I download the full ote and install and then wipe cache and dalvik from twrp or should I go back to the recovery stock? I've never used the twrp to update and it's my first time with a One plus ... Now I'm with Oxigen OS 5.1.1 android 8.1 stock .... Greetings

I'm using RenderZenith and I personally think it's both smoother & snappier/more responsive than stock kernel. Battery life seems very comparable to stock kernel, possibly a bit better. Unfortunately, I cannot give a comparison of stock vs RZ kernel as far as battery life goes as my day-to-day usage is too irregular to give an accurate comparison.
---------- Post added at 07:17 PM ---------- Previous post was at 07:01 PM ----------
Princeland said:
OK thanks. One more question ... I have a system notification to update my Op5t to the latest Oxygen OS 5.1.2, how should I do to update, what steps should I follow? I download the full ote and install and then wipe cache and dalvik from twrp or should I go back to the recovery stock? I've never used the twrp to update and it's my first time with a One plus ... Now I'm with Oxigen OS 5.1.1 android 8.1 stock .... Greetings
Click to expand...
Click to collapse
If you're rooted you'll want to download the full OTA. Easiest way to do that is through Settings>Software Update. If you're rooted it will automatically detect you're rooted and flash a pop up saying "hey you're rooted, and because of that, we'll download the full Zip file" (along the lines of that).
Once downloaded, disable and uninstall any substratum themes (if you have any), & boot to recovery. Once you're in TWRP, follow these steps:
1. Wipe > Dalvik/Cache only
2. Click Install, from there you'll want to navigate to sdcard/.ota, the update should be located in this folder
3. Flash the ROM update.
4. Flash Magisk (ensure you're not using 16.4) The Magisk version you flash should be the version you were previously using on 5.1.1. Do not try to update Magisk while also updating ROM.
5. Wipe Dalvik/Cache (I always do for good measure, not really necessary)
6. Reboot, & enjoy 5.1.2.

crashazz3 said:
I'm using RenderZenith and I personally think it's both smoother & snappier/more responsive than stock kernel. Battery life seems very comparable to stock kernel, possibly a bit better. Unfortunately, I cannot give a comparison of stock vs RZ kernel as far as battery life goes as my day-to-day usage is too irregular to give an accurate comparison.
---------- Post added at 07:17 PM ---------- Previous post was at 07:01 PM ----------
If you're rooted you'll want to download the full OTA. Easiest way to do that is through Settings>Software Update. If you're rooted it will automatically detect you're rooted and flash a pop up saying "hey you're rooted, and because of that, we'll download the full Zip file" (along the lines of that).
Once downloaded, disable and uninstall any substratum themes (if you have any), & boot to recovery. Once you're in TWRP, follow these steps:
1. Wipe > Dalvik/Cache only
2. Click Install, from there you'll want to navigate to sdcard/.ota, the update should be located in this folder
3. Flash the ROM update.
4. Flash Magisk (ensure you're not using 16.4) The Magisk version you flash should be the version you were previously using on 5.1.1. Do not try to update Magisk while also updating ROM.
5. Wipe Dalvik/Cache (I always do for good measure, not really necessary)
6. Reboot, & enjoy 5.1.2.
Click to expand...
Click to collapse
Thank you very much for such detailed information. I will follow your instructions
Regards

Princeland said:
How do I get back to the stock kernel if I do not like another one?
It's easy?
I want to install another kernel but be able to return to the stock if I do not like it
Click to expand...
Click to collapse
If you have root you can use the apk on playstore called flashify. It makes a backup of the stock kernel, if you don't like the result you simple have to restore the stock one.

[ROM/FW][STOCK]LG V30 (Joan) Sprint LS998 30A TWRP flashable firmware (incl. ROM)

LG V30 Sprint LS998-30A ROM​Hi!
This Rom is 99% Stock. Most recent TWRP should first be installed. Then you can install this Rom and have Oreo with working TWRP.
This zip is created from the original KDZ.. It is made by me flashing my back to factory zip to lose TWRP and root and taking the OTA and then using lgup to dump all the partitions and then making a flashable zip. It contains almost the complete 30A firmware, but the partition table rewriting part and recovery image is removed. I changed the system.img, so you do not have to reinstall TWRP (recovery-from-boot.p deleted) when ROM is booted. I also changed the partition size of system.img, so the vendorized people can install this too without having problems because of a too small system partition. This is a continuation of westwood24's idea and work, I've updated it to the newest fw version and edited / advanced it a bit. I followed his idea and made this for users who can not take OTA's because they have Custom Recovery / Root installed.
​
Features
[*]Stock build made from official KDZ
Made from me taking OTA and dumping Partitions
Stock Build.prop (only 2 extra lines added for DTS, full weather lockscreen)
[*]Unrooted
Latest Canary Magisk Pre-installed (19.4 -087b451e (19308))
system.img modified to keep TWRP
System image size shrunk for being able to flash this on a smaller system partition, mainly caused by vendorizing
Removed dm-verity
Removed rctd (LG's root checker tool daemon)
Enabled opt-encrypt, it's your choice now if you want to encrypt your phone, it's no more forced. TWRP now is capable of decryption (both AOSP and stock) since a few versions
Installation
What you need
Unlocked Bootloader [How to do]
Working TWRP installed (should be installed already, otherwise you wouldn't need this zip )[Link to newest unofficial TWRP]
[*]When you need Root, Latest Magisk [Download]
No Longer Needed on 30a
NOTES
Starting with 30a
Please make a full twrp backup in case anything goes wrong. if after installing you lose your texts or your launcher changes back to the default stock launcher or some other weird bug like that, restoring just your DATA backup will fix it. If after flashing 30a you experience random reboots immediately after booting, DO NOT worry. This same thing happened to me and i believe that its just finishing the update with sprint. When this happened to me, I could see the Finishing Update notification in the pull down. My device rebooted about 3 times and in some cases became extremely laggy and i had to force reboot by holding vol up and power button . After the 3rd boot everything settled down and became stable and no reboots since.
LATEST ZIP
john-fawkes.com LS99830a.zip [Click to Download]
OLDER ZIPS
AFH ZIPS [Download]
How to install
When you are still on Nougat,
you should start fresh: Reboot to recovery using button combo or reboot app (needs root; btw, Magisk offers this possibility too: Menu -> Modules -> three dot menu top right - Reboot to recovery)
Then flash this TWRP.img via image flashing function in TWRP, reboot to recovery again (for fully working new recovery) and do a backup, then copy this backup to your PC.
Then initiate a factory reset. Wipe your system partition too in TWRP advanced wiping menu, copy the 30A firmware zip to your SD and install it. Reboot and enjoy
From Oreo:
For clean install: Factory reset and wipe system
You can also keep your data by simply dirty flashing the zip. *Be aware that problems may occur, maybe you need to do a factory reset to start fresh*
Flash the 30A zip, then Magisk zip when you need root, then reboot to System = you're DONE
P.S.: could be, that you first need to boot up your fresh install and set it up before you can flash magisk.No Longer Needed on 30a. Just Flash 30a Zip.
At the first time you boot to system, it can be TWRP says No OS installed. You can ignore it.
If TWRP asks if you want to install SU, hit no (in newest TWRP SU is disabled, and the option to install the TWRP app is disabled too.)​
Rom Version
Android Version: 8.0 Oreo
Android security patch level: 2019-08-1
Don´t forget to hit the thanks-button if you like this zip! :good:
You want to help me with a [donation?] Not asking for it, I have fun doing this for you, but feel free...

Now this is what I like to see right here.bout to leave havoc in start flashing this asap I miss stock anyways thanks @JohnFawkes

Deandre7452 said:
Now this is what I like to see right here.bout to leave havoc in start flashing this asap I miss stock anyways thanks @JohnFawkes
Click to expand...
Click to collapse
Your welcome lol. Took me forever to do this. Had to backup and then wipe data then flash factoryls998 zip from sprint thread, then take Ota, the use lgup to dump all partitions then kdz to us99820e to root again then create flashable zip. I've tested it and it boots just fine

I can add this to WTF instructions tonight -- to join the Verizon and AT&T stock firmware TWRP-FLASHABLE zips already listed.
Thanks for you, @seadersn and @david.542569 efforts in making the North America stock firmware TWRP-FLASHABLE zip ROMs.

JohnFawkes said:
Your welcome lol. Took me forever to do this. Had to backup and then wipe data then flash factoryls998 zip from sprint thread, then take Ota, the use lgup to dump all partitions then kdz to us99820e to root again then create flashable zip. I've tested it and it boots just fine
Click to expand...
Click to collapse
Damn my brother you went through the struggle ? do not remind me, because I went through some before flashing stocks and roms with converting.
---------- Post added at 07:21 PM ---------- Previous post was at 07:19 PM ----------
ChazzMatt said:
I can add this to WTF instructions tonight -- to join the Verizon and AT&T stock firmware TWRP-FLASHABLE zips already listed.
Thanks for you, @seadersn and @david.542569 efforts in making the North America stock firmware TWRP-FLASHABLE zip ROMs.
Click to expand...
Click to collapse
Chazz I see you have a lot of update to do

ChazzMatt said:
I can add this to WTF instructions tonight -- to join the Verizon and AT&T stock firmware TWRP-FLASHABLE zips already listed.
Thanks for you, @seadersn and @david.542569 efforts in making the North America stock firmware TWRP-FLASHABLE zip ROMs.
Click to expand...
Click to collapse
Sounds good :good: btw if anyone hears about us998 kdz updates please let me know. That's next on the list. While I'm waiting on that I'm going to finish the magisk module for @Whiskeyomega audio mod. Got permission from him to not only turn it into a Magisk module but im using xmlstarlet to do it. Xmlstarlet is a xml parser. It allows on the fly editing of xml files. This will allow the device to keep its original mixer_paths xml and my module just add the modifications in. This is extremely useful since whisky and myself both have seen LG deploy multiple mixer paths xmls. Why? No idea. Every regions mixer_paths is different. Not by much. But in my head patching is ALWAYS better than replacing :good::good:

@mattgyver please delete the 2 posts

JohnFawkes said:
@mattgyver please delete the 2 posts
Click to expand...
Click to collapse
:crying: This place is the Krypton to my Superman. I have no power here. I'm just a regular user in "this neck of the woods". You'll need to report the posts so the mods for the LG forums see them to delete them. Really, though, replacing content of the posts with "deleted" has the same effect.

Thanks man!
I have been having too many weird problems on my 21A and was about to do a wipe and clean flash of that one from back in May, and wasn't looking forward to it. I've been using the same system partition for probably 3 months without resetting anything.
I'm excited now that I can flash an updated version instead, now! Ill try it in the next 2-3 days and let you know if anything feels odd (I don't suspect that since you say it's about 100% stock).
Thanks again for your work, and taking the time to upload a TWTP flashable version :good:
.
Sent from my LG-LS998 using XDA Labs

Thanks! Looking forward to flashing this.. haven't flashed anything since 21A... You think dirty flash is ok??

Lurien said:
Thanks! Looking forward to flashing this.. haven't flashed anything since 21A... You think dirty flash is ok??
Click to expand...
Click to collapse
should be yes

Ive been running it over a full day now, debloated and tweaked a bit. RCS and VoLTE is working after ##72786# and a PRL and profile update.
I don't have any obvious issues, thanks again!
Sent from my LG-LS998 using XDA Labs

syndre said:
Ive been running it over a full day now, debloated and tweaked a bit. RCS and VoLTE is working after ##72786# and a PRL and profile update.
I don't have any obvious issues, thanks again!
Click to expand...
Click to collapse
Dirty flash?

Lurien said:
Dirty flash?
Click to expand...
Click to collapse
I did a clean flash and restored my apps from google (first boot up) and then used titanium backup to restore app data for the ones that needed it.

syndre said:
I did a clean flash and restored my apps from google (first boot up) and then used titanium backup to restore app data for the ones that needed it.
Click to expand...
Click to collapse
Thank for the reply. May I ask what rom you were running? Thanks..

Lurien said:
Thank for the reply. May I ask what rom you were running? Thanks..
Click to expand...
Click to collapse
Before this one I was using the stock Sprint 21A ROM that @JWnSC shared in his US998 to LS998 guide here.
I never could get an AOSP ROM to work the way I wanted on a LG V-series phone, even though I still try every 2-3 months, going back probably 4 years. Especially now that Sprint has RCS and VoLTE activated on their Network, I don't see an AOSP ROM on this device working with those two things functioning any time soon, if ever. That and the DAC not being perfect are the reasons I'm still on stock LG.
I wouldn't ever recommend an LG V-phone to anyone on Sprint who plans on using it as a daily driver with AOSP. Those LTE features will probably never be supported.
.

syndre said:
Before this one I was using the stock Sprint 21A ROM that @JWnSC shared in his US998 to LS998 guide here.
I never could get an AOSP ROM to work the way I wanted on a LG V-series phone, even though I still try every 2-3 months, going back probably 4 years. Especially now that Sprint has RCS and VoLTE activated on their Network, I don't see an AOSP ROM on this device working with those two things functioning any time soon, if ever. That and the DAC not being perfect are the reasons I'm still on stock LG.
I wouldn't ever recommend an LG V-phone to anyone on Sprint who plans on using it as a daily driver with AOSP. Those LTE features will probably never be supported.
.
Click to expand...
Click to collapse
Thanks for the reply. I'm also running that same 21A ROM.. I figured a dirty flash would be ok,.. according to the OP dirty flash should be fine.. will try in the next few days.. As far as AOSP ROMS I've stayed away from them after reading about all those issues.. I've never been a huge fan of AOSP ROMS but in the the past I've tried them out on other phones just to flash and try something new...

I have not seen any mention of this yet, but I would like to mention the fact that that most of the major LG stock apps have updates to them on apkmirror. Camera, QMemo, LGHealth, LGBackup, FMRadio, SmartWorld, Gallery3D v7.0 and a few others.
I install these apks then use LP to integrate them into /system . You must put magisk into core only mode when you integrate the updates into the ROM, otherwise you'll just get errors like "not enough space on target".
I actually made TWRP flashable zips for all these updated apps so that you can just flash them in recovery and not worry about having to "integrate" anything. If there's enough interest in these zips from others, I can upload them to a cloud somewhere and share them with everyone.
.
Sent from my LG-LS998 using XDA Labs

Compared to 21a, is this worth the risk? Does it have a new radio? Could someone post their baseband?
---------- Post added at 10:29 PM ---------- Previous post was at 09:50 PM ----------
I seem to have lost LTE on a dirty flash ... Is there something else I have to do with the Sprint modem? Baseband is Def different
Perhaps I am just getting bad LTE reception today, but I am only getting 3g...odd

islandfever said:
Compared to 21a, is this worth the risk? Does it have a new radio? Could someone post their baseband?
---------- Post added at 10:29 PM ---------- Previous post was at 09:50 PM ----------
I seem to have lost LTE on a dirty flash ... Is there something else I have to do with the Sprint modem? Baseband is Def different
Perhaps I am just getting bad LTE reception today, but I am only getting 3g...odd
Click to expand...
Click to collapse
I've been running this for a little over a week now and I dirty flashed between us998 20e ls998 21a and this 26a and I've had lte with all 3 the entire time. Haven't switched to 3g once

Switch to another custom rom

Hi,
I have a Pixel 3xl rooted and running with Havoc Rom.
if I want to switch from a custom rom to another custom rom, how can I do that?
Do I have to install stock rom and erase data before the new custom rom or can I just install the new custom rom above to previous one?
Thank you.

oceliome said:
Hi,
I have a Pixel 3xl rooted and running with Havoc Rom.
if I want to switch from a custom rom to another custom rom, how can I do that?
Do I have to install stock rom and erase data before the new custom rom or can I just install the new custom rom above to previous one?
Thank you.
Click to expand...
Click to collapse
Install stock factory image to both slots with -w intact in the flash-all batch, and then start with the instructions of the ROM you want to install.

sliding_billy said:
Install stock factory image to both slots with -w intact in the flash-all batch, and then start with the instructions of the ROM you want to install.
Click to expand...
Click to collapse
I would personally back up anything I wanted then flash the new rom boot.img and try to dirty flash it. If it got messed up then I would do as above. I am still crazy though and 9/10 you need a wipe when switching.

wangdaning said:
I would personally back up anything I wanted then flash the new rom boot.img and try to dirty flash it. If it got messed up then I would do as above. I am still crazy though and 9/10 you need a wipe when switching.
Click to expand...
Click to collapse
I get it. I hate clean flashing more than anything, but pretty much no custom ROMs allow for dirty installs except for over the same ROM these days. Even over the same doesn't always work well especially if the build was dirty. Not worth the extra effort trying to figure out and fix what broke on a cross-rom dirty flash, IMO.

sliding_billy said:
I get it. I hate clean flashing more than anything, but pretty much no custom ROMs allow for dirty installs except for over the same ROM these days. Even over the same doesn't always work well especially if the build was dirty. Not worth the extra effort trying to figure out and fix what broke on a cross-rom dirty flash, IMO.
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True, but lots of people have extra time nowadays. I would say just always make sure you back up somehow before any switch. Be ready to wipe your device clean.

Thank you for your replys.
I'm not an english speaking personn, so if i understand:
The normal way to switch two customs roms is to "transit" by the stock rom and clear all data and then install rhe new custom rom.
The other way, would be dirty flash the new custom rom above the previous custom rom (with loss data possible so a bachup is needed).