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Trying to do CM13 to CM12.1 downgrade on soft-bricked

So I decide to upgrade a a couple of weeks after OTA update to CM13 arrived. Turns out it was a massive mistake, especially since no backup, no ADB enabled, no root and nothing custom. This is the best I have so far: https://jira.cyanogenmod.org/browse/BACON-4808 (summary: System UI and com.android.phone both crash on startup). Sad thing is I can see phone working just fine behind the crashed UI (getting mail, notifications etc.) I know my data is in there but cannot get to it.
Anyway, customer support is responsive but I am not sure they will let me keep my data.
I am pretty much starting from scratch regarding flashing, and the first few hours was deciphering abbreviations and other bull. Other than that I am decently proficient with the tech stuff.
Would be grateful if you guys can help point me in the right direction. The info I currently have:
* I want to keep my data
* images here: http://forum.xda-developers.com/oneplus-one/general/official-cm11s-roms-ota-updates-t2906746
* I know that my phone is recognized by PC if I put it into ADB sideload mode (didn't yet try whether it works though)
* phone is also recognized when in fastboot
* possibly downgrade might work, but I am trying to find a method that will let me keep the data, if I get glitches I don't care for now
What I am not so sure about:
* flashing for example cm-12.1-YOG7DAS2K1-bacon-signed.zip in full should let me keep the data, true?
* taking fastboot image and just flashing boot&system should also let me keep the data, true? Did I miss anything?
What do you guys suggest I do? I know that in the end I might crash everything anyway, but at least I want to do the best I can (And make that backup soon after). Thanks for all and any help!
edit: Did the sideload flashing, that went fine, is easy. Problem is those images seem not to work for me anyway (bootloop). Probably because I didn't wipe userdata.

maybe try to use the restore tool (http://forum.xda-developers.com/oneplus-one/general/tool-oneplusrecovery-tool-v1-0-restore-t2991851) its pretty old (CM11s) but if it workd then refalsh the TWRP and update your phone to cm12.1 (with the required firmware)

A good question after all I did: Did anyone ever successfully downgrade from 13 to 12.1 without full data wipe?
p.s. it is very very easy to downgrade, it just doesn't work since OS upgrade makes changes to local data making it incompatible. This is what I did:
1) down+power on
2) chose upgrade and sideload upgrade from adb
3) while in that menu phone will wait for the update, just connect it to pc and do adb sideload image.zip (image needs to be signed ordinary image not the fastboot one)
4) wait until it completes and reboot phone
Tried all 4 CM12.1 images to no avail.

Dear all,
After flashing cm-13.0-ZNH0EAS2JK-bacon-signed FROM cm-12.1-YOG7DAS2K1 through TWRP on my rooted OPO as usual i do. MY mobile stuck in boot loader "CYANOGEN MOD READY" And not starting even after 45 mins.
So again i installed cm-12.1-YOG7DAS2K1-bacon-signed. Working fine. Tried many tiimes by wiping data,cache,dalvik too. But every time im stucking at boot loader "CYANOGEN MOD READY" . Please suggest me the best way to shift to marshmallow. I dont want to unroot.

skundurthy said:
Dear all,
After flashing cm-13.0-ZNH0EAS2JK-bacon-signed FROM cm-12.1-YOG7DAS2K1 through TWRP on my rooted OPO as usual i do. MY mobile stuck in boot loader "CYANOGEN MOD READY" And not starting even after 45 mins.
So again i installed cm-12.1-YOG7DAS2K1-bacon-signed. Working fine. Tried many tiimes by wiping data,cache,dalvik too. But every time im stucking at boot loader "CYANOGEN MOD READY" . Please suggest me the best way to shift to marshmallow. I dont want to unroot.
Click to expand...
Click to collapse
Take a backup of your internal storage
Flash factory images of CM13 using Index #8 http://forum.xda-developers.com/oneplus-one/general/guides-bacon-timmaaas-how-to-guides-t2839471
After flashing factory images, flash TWRP (Index #8)
After flashing TWRP, flash SuperSu from TWRP http://download.chainfire.eu/supersu-stable

In a right mess trying to return to stock

Please could someone help ! I'm trying to unlock my XT1032. I have the correct Sim-Unlock (network unlock) code from my old telco, but... it won't work because the phone is rooted, bootloader unlocked (S-ON) running CM13.
I figured that returning it to a stock build would allow me to unlock the phone, then I could re-root and return to CM13 on my new network.
However..... there are about a dozen guides on returning a Moto G to stock and the first one I tried left the phone stuck on the 'Warning: Bootloader is unlocked' message. Since then, I've tried several other guides and have got nowhere fast. I've been on this for four hours now and the only thing I seem to be able achieve is to get TWRP or CWM recovery on there by flashing from fastboot. Every other image I try either gives 'preflash validation failed' messages, sticks on the Bootloader Unlocked screen or gets it stuck in a bootloop!
I just want to switch networks... Why is this so bloody difficult ?

What Firmware did your XT1032 originally come with? or which Carrier?

Kitkat I think, and it's Tesco (UK).
I subsequently did the OTA update to Lollipop and then.... WHOAAAAA.... hold on... it's booting !!!
I don't know how, or what I've done to get this far, but the only thing I can think of that's changed is that the battery is now at 100% charge. It appears as though it's successfully flashed the 5.1 untouched ROM from http://forum.xda-developers.com/devdb/project/?id=7981#downloads
But, I've tried flashing that loads of times this evening and it's failed everytime.
Having said that it's booting, it's sitting here on the Motorola logo - and it hasn't got that far in the last five hours.... I'll be back shortly !
Update: It worked ! It completed the boot, I put the new SIM in, it asked for the unlock code and this time it worked OK. Now I'm tackling putting CM13 back on it. I think I'll stick with TWRP rather than CWM recovery, as long as TWRP can handle the automatic updating for the CM nightlies.
I have no idea what went wrong there - maybe it was just that the battery had to be at 100% ?? Who knows... Thankfully I doubt I'll be tackling that again !

I don't know if things have changed, but I would be careful with OTA Updates in CM. People have hard-bricked (phone is effectively destroyed) applying updates in this way. I also suggest you avoid official Motorola updates, rather use the factory firmware images available here: (which already include the content of OTA Updates)
[INDEX] Moto G [Falcon][Peregrine] Factory Firmware Images​

Thanks for replying anyway mate. In the end, it's all good now. Unlocked and back on CM13 and on my new network !

Ahhh... not so good after all. The phone reboots every time you try to uninstall an app. I've tried flashing back to CM12.1, the latest stable release, and it does the same, so I've obviously screwed something up along the way.
Could someone help me flatten this thing completely and get it working normally please?
I've tried reflashing loads of times, even tried Cyanogen Recovery instead of TWRP but nothing I do gets rid of this reboot problem.
Can anyone assist please?

OK, so I've followed the procedure detailed here: http://forum.xda-developers.com/moto-g/development/rom-stock-motorola-lollipop-rom-t3017510 and flashed the Untouched 5.0.2. EU Stock ROM successfully, but it still reboots when you try to uninstall any app.
Whatever it is that's causing this is not getting overwritten by the flashing procedures I'm using is it ?
HELP !!!!!

@aneng64 - You have not done what I told you to do. Read my post again.

Yes I did... and I still had the same problem. It was only once I stopped trying to flash zips from TWRP and used mfastboot to flash the whole set individually (non-hlos, motoboot etc) that I got it to behave. The issue, incidentally, seemed to be the same one mentioned elsewhere here that also causes settings to crash when you try to go into settings, security.
Once it was stable with a stock ROM, I was able to flash CM13 again and it's now sorted. Thanks for your help anyway.

Has Anyone Gotten a Custom ROM onto a BLN-L24 (US Variant)?

I have tried quite a few ROMs, and all ended up going back to stock firmware because they wouldn't boot. I know I have to format data, and some ROMs ask you to change the data partition as f2fs.
Still, I think that there may be no ROMs that currently work for the US variant. One guy said LOS 13 worked, but when I flashed it, it failed. If someone has gotten it to work, can you please post as many steps as you remember on how to get it work?

Debrand to BLN-L21 following this guide and you're ready to flash cooked ROMs https://forum.xda-developers.com/honor-6x/how-to/guide-successful-debranding-to-bln-t3701050

RedSkull23 said:
Debrand to BLN-L21 following this guide and you're ready to flash cooked ROMs https://forum.xda-developers.com/honor-6x/how-to/guide-successful-debranding-to-bln-t3701050
Click to expand...
Click to collapse
Thanks, but wouldn't there be more issues down the line with a debranded phone? What if I soft-bricked my phone, it seems like it'd be really hard to restore? Has anyone actually ever done this on a BLN-L24?

Hello all,
I too am having issues with flashing roms to this device, US variant (BLN-L24). In my particular case, the rom boots up (EliteRom v7.1) and will actually function. However, wifi does not work, as well as I have no sound whatsoever. Youtube also will not play, nor will any videos, which I'm guessing is tied to whatever issue is with the sound. I have flashed multiple times per the step by step instructions, as well as following the Youtube video, all with the same result over the last few days. At this point, my phone is effectively useless to me, though cellular data does still work, just no calls can be answered. Anyone have any suggestions I might be able to follow? Also, even my TWRP backup that I made before installing the rom will not restore at this point. Any help is appreciated, thanks.

Jessooca said:
You must be missing a step or something, because [Elite ROM][EMUI 5.1] Elite ROM v7.1 for Honor 6X by HassanMirza01 works on the L24 us variant without issues, I have none.
Perhaps go back to stock and start over. I haven't had any issues with his rom and I didn't do anything more than what's needed to root/install twrp and flash the rom per his instructions.
Click to expand...
Click to collapse
I just followed the instructions; I believe to the best I could, and I'm stuck in a bootloop now. Which version of EMUI were you on before flashing? I was on EMUI 5.0 which may be my issue.
I started from EMUI 5.0
Unlocked my bootloader
Let it factory reset
Installed the Elite TWRP on the page
Booted to Elite TWRP
Formatted all partitions excpet for external sd card
Reformatted Data to f2fs
Re-wiped data
Checked that it was f2fs
Installed Elite ROM zip
Installed open gapps 7.0 ARM64
Installed the patch
Rebooted
Bootloop

i4ybrid said:
I just followed the instructions; I believe to the best I could, and I'm stuck in a bootloop now. Which version of EMUI were you on before flashing? I was on EMUI 5.0 which may be my issue.
I started from EMUI 5.0
Unlocked my bootloader
Let it factory reset
Installed the Elite TWRP on the page
Booted to Elite TWRP
Formatted all partitions excpet for external sd card
Reformatted Data to f2fs
Re-wiped data
Checked that it was f2fs
Installed Elite ROM zip
Installed open gapps 7.0 ARM64
Installed the patch
Rebooted
Bootloop
Click to expand...
Click to collapse
On one of the attempts that I did for installing, I installed the patch and it put me in a boot loop. Maybe not installing the patch can help you?

I cant get anything to work for the US version. Sure stuff boots but some of it is just broken. On octOS i am unable to use root unless i switch supersu to automatically grant root to apps. I cant get root access by using prompt because nothing pops up. On crdroid i have the same exact issue. Id rather have the prompt than allow any app root access without my knowledge. With ELITE ROM my first boot brings up a home screen with no keyboard. It completely skips any kind of setup screen. I can get the setup screen by flashing a keyboard from an aroma gapps installer but then i lose google services. The US version also seems to be forgotten as for most roms you wont see it anywhere under supported lists.

I've never been able to get a custom rom to work on my BLN-L24. Everything just ends in a never-ending bootloop of frustration.
Though, I have only ever tried with EMUI 5.0+. Maybe an earlier version of EMUI gets better results...?

code_name_duchess said:
I've never been able to get a custom rom to work on my BLN-L24. Everything just ends in a never-ending bootloop of frustration.
Though, I have only ever tried with EMUI 5.0+. Maybe an earlier version of EMUI gets better results...?
Click to expand...
Click to collapse
It really sucks that nothing seems to work. Ive tried flashing using multiple recoveries and ive tried all kinds of flashing to fix issues with the ROMS. Nothing helps. If anyone has successfully gotten a ROM fully working on BLN-L24 they need to tell people exactly what they did step by step.

It seems that for the roms located here, they seem to all assume that the phone has been debranded to bln-l21 variant. I don't know if it has any bearing on the current issues we're all experiencing, but I did notice that all twrps available for this device on the forums state they are the "Open Kirin Edition". It's been a while since I've rooted or rom'd a phone besides this one, but I've never encountered a twrp with a custom name like that.
I know that the developer of the EliteRom had his custom twrp, but is there a different twrp besides that one that does not state it is an "Open Kirin Edition"? Like I said, not sure if it has any bearing on things here, but I've been very confused about that.

TurtlePwr82 said:
It seems that for the roms located here, they seem to all assume that the phone has been debranded to bln-l21 variant. I don't know if it has any bearing on the current issues we're all experiencing, but I did notice that all twrps available for this device on the forums state they are the "Open Kirin Edition". It's been a while since I've rooted or rom'd a phone besides this one, but I've never encountered a twrp with a custom name like that.
I know that the developer of the EliteRom had his custom twrp, but is there a different twrp besides that one that does not state it is an "Open Kirin Edition"? Like I said, not sure if it has any bearing on things here, but I've been very confused about that.
Click to expand...
Click to collapse
For most phone i've ever owned you never had to change the recovery for each ROM. Its confusing. Most recoverys say Open Kirin Edition when booting. What confuses me is why we need to debrand to get the ROMS to work. If the phone pretty much run on the same hardware then why is L24 having so many issues? Why are the devs not testing on these devices?

BakedOnSomeSour said:
For most phone i've ever owned you never had to change the recovery for each ROM. Its confusing
Click to expand...
Click to collapse
Right, that's what I was thinking. For any phone I've ever rom'd, there was always just one twrp that everyone worked from.
Edit: found this while looking through the roll back to stock forum. I don't know if it will help anyone else, but figured I'd put it here as well if it might. All credit for this goes to the original poster johnnyrichter:
johnnyrichter said:
Tried this method after being on LineageOS for a week or two and having poor LTE signal, no MMS, and voicemail issues so I'm trying to go back to stock so I can have a fully functional phone since I rely on it heavily for work. Followed all steps using BLN-L24 B360 firmware. On step 10 I rebooted to update and it went right to "5% Installing Update" and stuck there for 5 mins, then rebooted itself, has been sitting at "honor" boot screen for 14 minutes so I made it reboot to EMUI recovery, wiped/factory reset, rebooted, loaded EMUI afte 2 more minutes. Appears to have worked and hopefully my issues are fixed!
Edit: Signal, mms, and voicemail issues fixed.
Click to expand...
Click to collapse
Hopefully will benefit someone here as well.

When debranding the BLN-L24, and branding it to BLN-L21, are there any issues with the ROMs once they're installed? I imagine the radios, and such are different for the two models??

BakedOnSomeSour said:
Why are the devs not testing on these devices?
Click to expand...
Click to collapse
Devs can only test devices they have in possession. If they don't have your phone model, how are they going to test it?

galapagos said:
Devs can only test devices they have in possession. If they don't have your phone model, how are they going to test it?
Click to expand...
Click to collapse
well, many don't want to give them a phone because most developers here tend to stop work on a ROM and leave people hanging.

I have gotten several ROMs working on L24 variant...
Yes it seems to me any Elite kernel based ROM works or should work on the L24. But /data must be ext4 format. Then even that the ROM works, the fingerprint scanner never allows a complete successful scan. I think because it must be f2fs format for that encryption to work or something. This is the link to those ROMS https://hassanmirza01.blogspot.com/p/custom-roms.html?m=1
On the other hand the LOS based ROMs never work or at least they reboot and the screen is always black or the ROM branding just stays there flashing. This sucks cause I want to run the newest Resurrection ROM but I ask the developer about why I have that problem or how long that ROM takes to boot and I never get an answer. He also just put a new beta AOKP ROM up and it does the same black screen thing too.
I am also suspicious it has to do with the version of TWRP. I think some are capable of formatting f2fs correctly or the encryption or whatever. Point is some of the devs need to be a little more consistent answering questions at a minimum. I know it takes time to fix bugs but give us a little heads up.

Problems with my SANDERS device (Motorola G5s Plus)

I was trying to install a new custom rom in my device, and everything went nice until the bootloader unlock. When I was installing TWRP, I had problemas with it because it was asking me a password to decrypt data, and even following some steps I found in websites, this password request never went away, it always came back right after I configured my system normally. So I decided to flash the custom ROM without checking if the password request was gone, and them I tried to install RROS along with gapps, but the problem was that my device, after the wifi config, was restarting by himself. Always in this part, so it kept in this loop. I tried another versions of RROS, another version of gapps, and even another ROM, Pixel Experience, but it kept the same way, with the same loop. Can anyone help me? I´m desperate. My cellphone is s Moto g5s plus, 3GB of ram, 64 bits processor. If necessar, I can post videos along with it.

Re-flash phone's Stock ROM.

I super messed up, need suggestions. [I fixed it like the chad I am :) ]

Cant flash twrp nor the patched magisk boot img to both slot a and b.
Bootloader is unlocked.
Flashing scripts via .bat files for stock zips of both android 10 and 12 results in "FAILED (remote: Partition product not found)" or "FAILED (remote: variable not found)" respectively.
I have no recovery.
When I had twrp, I've made the mistake of wiping my whole android 12 data, storage, and system and flashing an android 10 rom without reading up of the separate a and b boot slots nor the effects of my actions leading to bootlooping. (I've done with this other devices before with no problems). This in turn wiped the twrp recovery I had flashed and left me only fastboot commands and a twrp version up to 3.3 and 3.2 with no hope of getting usb otg to work as it was only available with the later versions of twrp and since I and now technically on an android 10 bootloader, any attempt at that time to flash twrp 3.6 was met with a (remote: Error calling AvbLoadAndVerifyBootImages Load Error) or some kind of other error I have no logs for. Now I cant even tetherboot to twrp 3.2 nor 3.3 and I get that error regardless.
[Boots to bootloader no matter what. Shows as UFS:Micron, Error reason - reboot bootloader - bootloader version is b1c1-0-4-7617406]
I believe I can get access to internal storage to flash these updates once I get a recovery tethered from the bootloader. I do not know if its possible to boot to fastbootd or whatever its called (used for write permissions/sideload update zips) even if I hadn't gotten into this predicament. I will be buying another Pixel 3 in the meantime as I have money to burn and like to hurt myself financially, and emotionally to get to my goal with this device. ( Didn't buy another one, I was committed to the cause!)
I am not a noob nor a pro, but somewhere in between. My biggest point of failure is not reading up on how the partitions are set up and the various issues others had when flashing android 10 and 11 roms. Any suggestions other than "uPdAtE tHe fAsTbOoT aNd AdB dRiVeRs" are not welcomed. Thank you. I will update once I find a soluton to my problem Which I Will.
Again, my main concern right now is getting tethered twrp to work again and need suggestions. I have older versions of platform tools and the latest so please non of those comments I see on literally every other thread.
Edit: I didn't mention this before, but I did have the ability yo sideload when I had twrp at the time before crapping everything out the window, but nothing would work and gave up. Just wanted to add if anyone was wondering.

First update, I used the propriatary "Tool All In One Tool" and I was able to boot to fastbootd, and wipe my data and storage, while updating my stock zip to android 12. Now I can tetherboot twrp 3.6.1_11-0 with the option for usb otg, wish me luck boys. I'm in.

Second update. Still stuck on first update, but weighing my options in the meantime. I flashed twrp via the flash current twrp option, but when I boot to it, touch is disabled so thats great... I can fast boot to only the twrp versions after 3.6+, so not so bad. I have no os installed, but I will try my hand again at that tool all in one tool again. I'll update tomorrow if anything comes of it.

3rd update. FROM THE BRINK OF DEATH!!! WHOOOOOOOOOO!!!!! I got the pixeldust rom flashed and working like a BOSS!!!!! You won't believe the 2 days I've had trying to get this thing to work. All in all 1 out of my 3 flashdrives finally worked with otg. I had a windows recovery drive premade on it so I just copied and pasted the files there without a hitch! Thank you Google for having to make me miss work and actually do research to get this thing working again! Thank you for the guys at Tool All In One Tool for making this recovery possible, I will shout out your thread. If anyone who's in a similar situation needs any help from me or any info, I'll be glad to help. This will be the second to last update. I can also make phone calls and use data so Pixel Dust rom is good to go if that was one of your concerns. See ya!

Final update, I got crdroid flashed with root and safetynet passed, I just found out that google Pay was imbedded in gapps so now I don't need the pay app anymore to do transactions! My banking app also works, got vanced finally installed (couldn't do it on regular stock ROM) some glitches with the ROM here and there but no worries. For who ever reads this. There's hope. I fd up as bad as you can get shy of a hard brick. I still don't know too much but learned near twice as much as I knew just a few days ago. If you need help just DM me and I'll work my hardest to bring the light. This phone is absolutely amazing and on god wished google was a better company to praise. I have more plans for these phones and hope more Roms come out to support it.
I have one question however, how do I make a backup of my system/system_ext partitions? I can make a back up of everything else but that with these two Roms... I have a backup of it with my stock ROM, but it resumed to mount when I used otg... Didn't try internal yet but I'll assume the same, is it a glitch with current twrp?