yashsingh1/xdaforums huggingface dataset:
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] rickysidhu_:
Got a bit of an unfortunate update. During my workout today I was trying to access Apple music to play a song. Not only did the stutters come back, but my device was so slow that I could see the Apple music icon slightly zoomed in, indicating the animation for it to open is about to begin. However the animation refused to start beyond the icon zooming in.

I tried accessing my notification panel, I tried turning the screen off, nothing was working.

A few seconds later my device decided to just turn off and reboot.

I'll have to go back to franken kernel as that's been the most stable for me. I was okay dealing with slowdowns and stutters, but I can't afford my device rebooting like that. Luckily it happened during a workout and not during a more crucial time.

I still support this kernel fully, in terms of its philosophies and the types of features it includes. It is exactly the type of kernel that I am looking for in my phone. That being said, I'll remain on franken until another update is pushed that may resolve these issues.

I'll keep an eye on this thread until then. Great work on this regardless of my problems, as I seem to be in a rare group to have such issues.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] Sultanxda:
Grab the console-ramoops so @LazerL0rd can debug it. It's located at

/sys/fs/pstore/console-ramoops-0
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] rickysidhu_:
Thanks for guiding me on how to provide logs, I remember doing this for the Kirisakura kernel as well. Unfortunately I've switched over to Franken ROM and that folder is now empty.

If I get a chance I'll come back on the kernel and try to replicate the issue, and this time get those logs for OP.

Thanks again.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] avetny:
Hmmm I also see lags in animation when I switching apps on high speed

(Freshly installed latest February build with latest kernel P520210221)
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] tlxxxsracer:
Tried to boot the latest verison while on DP1.. Boots back into fastboot saying "failed to load/verify boot images"". This also occured when i tried flashing magisk patched boot image.

Anyone else?
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] LazerL0rd:
Did you follow the instructions on the update post?
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] LazerL0rd:
If you don't mind me asking, what applications did you have open that you were switching between?
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] LazerL0rd:
The ramoops file contains the logs of the previous crash, so you'd need to collect it after the your device reboots when crashing.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] LazerL0rd:
Hopefully when I get round to rebasing the kernel and going through all the patches I'll be able to confirm the culprit and come up with a solution. I'm aiming to get that done sometime within the two weeks, but we'll see how things go.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] LazerL0rd:
It seems that my guess that there were two types of stutters was correct, then. Google came up with a workaround for Android S, and that seems to have resolved (at least mostly) the first type but the second type is likely Proton and Zest's usage of a 16ms PELT halftime. As stated in my comment above, I won't be touching that for a week or two as if I'm going back that far I may as well be cautious and do an entire rebase.

About the Bluetooth stutters you've experienced, do they occur in any application or just a certain few? I've experienced a stuttering bug myself (for applications utilising Open SL), but that doesn't seem to be Zest-specific.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] tlxxxsracer:
From OP? Yes, I've flashed your kernel before on Android 11.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] LazerL0rd:
Nope. I'm referring specifically to the instructions at the end of the update post (which is fair play, since the OP doesn't advertise Android 12 DP1 support but the update post does).

However, I don't recommend you doing so at the moment as there's a bug I need to track down in the DP1 which is causing apps that utilise the camera to fail with Zest Kernel.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] rickysidhu_:
I look forward to it! I will try to get logs if another reboot happens on the next version of the kernel. but let's stay optimistic and assume no reboots will happen on the next version to begin with :)
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] avetny:
Sure ! All this application one by one (many times over and over)
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] trizzv:
I just flashed this after patching the file and my phone isn't showing root or the kernel although I did use the fastboot boot method. How do i maintain root when flashing?
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] pablo103:
I had the same problem with the Proton kernel.

https://xdaforums.com/t/kernel-pixel-5-proton-kernel-v1-1.4194683/post-84251741
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] Queentus:
Just follow the instruction in the OP and your root will be preserved.
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] rickysidhu_:
Deleted
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] Neuken6969:
Can this be used on Android 12 dev build??
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] andrew2432:
Alright so...fastboot boot the thing, don't flash it, installer on screen, reboot and magisk still installed? Cool my phone, increase my 5g speed even?? Ready...go!!!

[UPDATE]

Awesome after a few hours so far. Booted image, installation ran, magisk remained, safetynet still passes. Running my 5g hotspot 24/7 destroys my phones. This has had an obvious reduction in heat so we just saved my battery from an early demise. Internet speed seems unaffected, cannot confirm. Phone runs nicely, this seems to have done exactly what I needed. Thanks so much!!!
[Google Pixel 5 ROMs, Kernels, Recoveries, & Other ] fuadhdmini:
Can I install this kernel on May update?
[Android Stick & Console AMLogic based Computers] Bertonumber1:
Hello all,

So i had tried every firmware out there for 2/16gb X96 max plus. Turns out this box is a totally different model the Q1 Android 9 System_as_root, no ramdisk.

The WiFi/ethernet and Kernel are different from the rest

So far I've had slimbox(with magisk) I don't know how @SlimHouse managed to root it.

All the X96max plus versions of twrp work on him including the X96max official twrp.

The stock is really smooth and actually OK. So I would like to root and maintain it...

What I cannot do is get this new box revision of "Q1" rooted.

So far I have tried :

1. Twrp flashing magisk 21.4.zip with Dm Verity..zip.

2. Cat /dev/block/boot > /sdcard/boot. Img and tried patching the boot partition with magisk.

3. Tried extracting the boot.img using Amlogic tools (and got lost)

Does anyone know how I can install magisk on this, it seems strange I can flash the zips and install twrp to recovery but I can't obtain root.

Thanks in advance, as always....appreciated.

Regards
[Android Stick & Console AMLogic based Computers] 3mel:
did you make any progress with this since asking ?

I've gotten myself a X96Max Plus2 that comes rooted without a superuser app or even a root switch. I don't want a box that's slapped together by manufacturers that barely give a f*#k offering root access to whomever asks. I want magisk on this thing!

getting definitive info is turning out to be harder than I thought, I discovered that settings names it differently to it's packaging. all material on the box says S905X3, but AIDA64, Dev Check and other apps only mention a codename Franklin. searching that brought me to a spec page saying it was S905X2.

how many boxes are called a variation of t95, how many of x96 ? kinda annoyed right now.
[Android Stick & Console AMLogic based Computers] Bertonumber1:
Yes you can use slimbox .. That'll do it.

Please note you will have to use USB twrp from the update option to flash a magisk patched.img to the mmcblk0 boot partition yourself..after you've flashed slimbox firmware. (sounds worse than it is)

It's a bit pernickety but you'll grasp it... And works well.

Goto the slimbox rom thread s905x3.

Off the top of my head (it was two boxes ago)

Here :

X96Max Plus

CPU: Amlogic S905X3 GPU: G31™ MP2 Изменения: добавлены прошивки slimBOXtv 54 mod

slimboxtv.ru

And here :

Post in thread 'project SLIMBOX' https://xdaforums.com/t/project-slimbox.4152049/post-83528517

Should have everything you need.

I actually done well with that little box.. Before upgrading to ugoos

Regards
[Android Stick & Console AMLogic based Computers] 3mel:
I tip my hat to you sir
[Android Stick & Console AMLogic based Computers] jack2023:
Hi, I have x96max plus 4/32 but for some reason wifi keeps dropping and shows this message unknown ssid , I tried everything flashed with several roms and still same issue please help. Thanks n Regards
[Android Stick & Console AMLogic based Computers] 3mel:
I'm not the right guy to ask.
[Android Stick & Console AMLogic based Computers] duck361:
Hi

Can someone help me root My X96x Max Plus

I have the X96 Max Plus 100 model

Thanks
[Samsung Galaxy S21 Ultra] chetly968:
Is it true that samsung removed MST functionality in many regions of the world? More specific to me, the US? I wonder if they will bring it back. Besides the microsd card, this was an important factor in choosing samsung over other android phones. Anyone have any

Ore information on this? Samsung pay without MDT is just a more limited google pay.
[Samsung Galaxy S21 Ultra] peterg21:
It has been removed in the US (other regions not certain yet) and apparently will not make a reappearance on a Samsung phone in the future (unless they change their mind). Read here:

Galaxy S21 lacks an important Samsung Pay feature - SamMobile

It appears not worldwide and may have something to do with the SoCs as well. Read here:

The US Galaxy S21 doesn't support Samsung Pay's best payment method (xda-developers.com)
[Moto E Q&A, Help & Troubleshooting] hemoibb:
i have moro e5 plus sprint XT1924-7 32GB P3

I put the key from the amy but it didn't open the BOOTLODER

PS C:\adb> fastboot oem unlock N4W776F37XBOYWY252OO

...

(bootloader) invalid boot state

OKAY [ -0.000s]

finished. total time: -0.000s

PS C:\adb>

PS C:\adb> fastboot getvar all

(bootloader) version: 0.5

(bootloader) version-bootloader: moto-msm8940-BF.C2

(bootloader) product: hannah

(bootloader) board: hannah

(bootloader) secure: yes

(bootloader) hwrev: P3

(bootloader) radio: 6

(bootloader) storage-type: emmc

(bootloader) emmc: 32GB SAMSUNG GX6BMB RV=08 PV=03 FV=0000000000000003

(bootloader) ram: 3GB SAMSUNG LP3 DIE=8Gb M5=01 M6=06 M7=00 M8=5F

(bootloader) cpu: MSM8940

(bootloader) serialno: ZL52266NSP

(bootloader) cid: 0x0015

(bootloader) channelid: 0x8e

(bootloader) uid: 2F406D2C00000000000000000000

(bootloader) securestate: flashing_unlocked

(bootloader) iswarrantyvoid: yes

(bootloader) max-download-size: 535822336

(bootloader) reason: Volume down key pressed

(bootloader) imei: 354138091417337

(bootloader) meid:

(bootloader) date: 08-03-2018

(bootloader) sku: XT1924-7

(bootloader) carrier_sku: XT1924-7

(bootloader) battid:

(bootloader) iccid:

(bootloader) cust_md5:

(bootloader) max-sparse-size: 268435456

(bootloader) current-time:

(bootloader) ro.build.fingerprint[0]: motorola/hannah_sprint/hannah:8.0.

(bootloader) ro.build.fingerprint[1]: 0/OCP27.91-32-15/4:user/release-ke

(bootloader) ro.build.fingerprint[2]: ys

(bootloader) poweroffalarm: 0

(bootloader) ro.build.version.full[0]: Blur_Version.27.311.4.hannah_spri

(bootloader) ro.build.version.full[1]: nt.sprint.en.US

(bootloader) ro.build.version.qcom: LA.UM.6.6.r1-04400-89xx.0

(bootloader) version-baseband: <not found>

(bootloader) kernel.version[0]: Linux version 3.18.71-perf-g8301ed2 (hud

(bootloader) kernel.version[1]: soncm@ilclbld81) (gcc version 4.8 (GCC)

(bootloader) kernel.version[2]: ) #1 SMP PREEMPT Mon Apr 15 06:07:21 CDT

(bootloader) kernel.version[3]: 2019

(bootloader) sbl1.git: git=MBM-NG-VBF.C2-0-geb7a3e0

(bootloader) rpm.git: git=02a0726-dirty

(bootloader) tz.git: git=73299ef-dirty

(bootloader) devcfg.git: git=73299ef-dirty

(bootloader) keymaster.git: git=73299ef

(bootloader) cmnlib.git: git=73299ef

(bootloader) cmnlib64.git: git=73299ef

(bootloader) prov.git: git=73299ef-dirty

(bootloader) aboot.git: git=MBM-NG-VBF.C2-0-g04c8e0c

(bootloader) frp-state: no protection (0)

(bootloader) ro.carrier: metropcs

(bootloader) current-slot:

(bootloader) slot-suffixes: _a

(bootloader) slot-count: 1

(bootloader) slot-successful:_a: INVALID

(bootloader) slot-successful:_b: INVALID

(bootloader) slot-bootable:_a: INVALID

(bootloader) slot-bootable:_b: INVALID

(bootloader) slot-retry-count:_a: unknown

(bootloader) slot-retry-count:_b: unknown

all: listed above

finished. total time: 0.139s

PS C:\adb> fastboot oem unlock N4W776F37XBOYWY252OO

...

(bootloader) invalid boot state

OKAY [ -0.000s]

finished. total time: -0.000s

PS C:\adb>
[Moto E Q&A, Help & Troubleshooting] sd_shadow:
Says bootloader is already unlocked.

securestate: flashing_unlocked
[Moto E Q&A, Help & Troubleshooting] hemoibb:
so when i install recovery twrp i see .

PS C:\adb> fastboot flash recovery twrp-3.3.1-0-hannah.img

target reported max download size of 535822336 bytes

sending 'recovery' (15362 KB)...

OKAY [ 0.487s]

writing 'recovery'...

(bootloader) Image not signed or corrupt

OKAY [ 0.260s]

finished. total time: 0.754s
[Moto E Q&A, Help & Troubleshooting] sd_shadow:
That's a fairly common error, usually, you can just ignore it and continue to the next step.

I would ask in https://xdaforums.com/t/recovery-twrp-3-3-1-x-for-moto-e5-variants-hannah-james-pettyl-nora.3912189
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Gaurav24:
PixelExperience for Asus Zenfone Max Pro M2 [X01BD]

What is this?

PixelExperience is an AOSP based ROM, with Google apps included and all Pixel goodies (launcher, wallpapers, icons, fonts, boot animation)

Our mission is to offer the maximum possible stability and security, along with essential and useful features for the proper functioning of the device

Based on Android 11

Whats working?

Wi-Fi

RIL

Mobile data

GPS

Camera

Flashlight

Camcorder

Bluetooth

FM radio

Fingerprint reader

Face unlock

NFC

Lights

Sound/vibration

Known issues

Nothing yet

You tell me

DON'T FLASH GAPPS, THEY'RE ALREADY INCLUDED

Download from PixelExperience website

Donate

Liked my work? Give me a beer

Translation

Help with project translation

Stay tuned

Our Telegram channel

Our blog

​

Difference between Standard and Pixel Experience Plus - Click Here​

Android OS version: 11.0.0_r49

Security patch level: November 2021

Build author/Device Maintainer: Gaurav24

Build author/Device Maintainer: Rk585

Device Source code: https://github.com/PixelExperience-Devices

Kernel Source code: https://github.com/asus-sdm660-devs/android_kernel_asus_sdm660

Source code: https://github.com/PixelExperience

ROM Developer: jhenrique09
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Gaurav24:
Support Group

:- https://t.me/PixelExperienceMaxProM2

Donate

:-

UPI - gaurab.2411@okicici

PayPal - www.paypal.me/kgaurav24
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Gaurav24:
ChangeLog

Update #11 (30/11/2021)

https://xdaforums.com/t/rom-11-x01b...dition-30-november-2021.4221219/post-86026017

Update #10 (11/09/2021)

https://xdaforums.com/t/rom-11-x01b...-edition-21-august-2021.4221219/post-85616459

Update #9 (21/08/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-plus-edition-17-july-2021.4221219/post-85512709

Update #8 (17/07/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-plus-edition-01-july-2021.4221219/post-85340495

Update #7 (01/07/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-plus-edition-18-may-2021.4221219/post-85269157

Update #6 (18/05/2021)

https://xdaforums.com/t/rom-11-x01b...s-edition-11-march-2021.4221219/post-85035531

Update #5 (11/03/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-aosp-24-february-2021.4221219/post-84637021

Update #4 (24/02/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-aosp-09-february-2021.4221219/post-84550497

Update #3 (09/02/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-aosp-21-jan-2021.4221219/post-84463007

Update #2.1 (21/01/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-aosp-20-jan-2021.4221219/post-84334227

Update #2 (20/01/2021)

https://xdaforums.com/t/rom-11-x01bd-pixelexperience-aosp-20-jan-2021.4221219/post-84328355
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] kuroi89:
It's still a beta version?
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Gaurav24:
Update #2 (20/01/2021)

ROM Side ChangeLog :-

* January security patch.

* ARCore crash fixed.

* Under the hood improvements.

Device Side ChangeLog :-

* Uprev Few HAL.

* ZRAM Enabled & Tuned.

* Remove Unused Stuff From DT.

* Switched to Enforcing Build.

Download

:- https://download.pixelexperience.or...ce_X01BD-11.0-20210120-1323-BETA-OFFICIAL.zip

Support Group

:- https://t.me/PixelExperienceMaxProM2

Donate

:-

UPI - gaurab.2411@okaxis (Indian)

PayPal - www.paypal.me/kgaurav24 (International)
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Gaurav24:
Beta is just a tag.
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] quasarswastik:
Cannnot download from PE website. Error states, "No mirrors found. Please try again after some minutes." for the past couple of hours.

View attachment 5194125

Edit: Had to download using a VPN, downloading now, cheers.
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] quasarswastik:
The ROM works well, I haven't discovered any major bugs yet. Thanks devs. Some bugs found are:

The performance on the ROM is on the lower spectrum, the animations are not smooth and lag can be felt even when opening or closing apps which are not even resource intensive,

RAM Management is one of the worst atm,

Random reboots,

The play security update always fails and is currently on 1 October 2020.
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Gaurav24:
Update #2.1 (21/01/2021)

Hotfix Update

- Fixed Vibration Sensor.

Download

:- https://download.pixelexperience.or...ce_X01BD-11.0-20210121-1307-BETA-OFFICIAL.zip

Support Group

:- https://t.me/PixelExperienceMaxProM2

Donate

:-

UPI - gaurab.2411@okaxis (Indian)

PayPal - www.paypal.me/kgaurav24 (International)
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Rukawax:
this version bootloop on my phone, any solutions?

but 11.0- 20201224 work fine.
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Herbert Endrian:
can I upgrade Android 10 to Android 11 without losing my data?
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] harputk:
Yes, me too
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] danz852:
Thanks for this Rom, really appreciate It. I installed

RQ1A.210105.003

PixelExperience_X01BD-11.0-20210121-1307-BETA-OFFICIAL and at the moment it working just fine on my phone.

The latest Magisk 21.4 is working fine. Don't have any problem with other phone functions.

My only problem is I cannot encrypt my phone. Everytime I try to encrypt the phone, it will restart for several times then stuck on Asus logo, wait for hours with no results. It will keep stuck on Asus logo.

I need to format data in TWRP to boot to system.

Does anyone have the same issue or only me?
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] danz852:
I also can confirm that Google Play system update fails to update, stuck on 1 October 2020.

But on my phone I don't have problem with random reboot.
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] pk_gamer_07:
What is the Difference between X01BD and X01BDA ?

I have X01BDA and i want to change my rom but i am not able to find anything for X01BDA

I really wanna try pixel os
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] danz852:
Hi, I'm using X01BDA too.

I don't know what's the difference, but I don't have any problem installing this ROM.

The only thing is I cant encrypt my phone with this ROM. For comparison Lineage OS can encrypt my phone with no problem

Good luck with yours.
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] pk_gamer_07:
Thanks!, maybe then ill try it out soon
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] quasarswastik:
Thanks for confirming danz852. I've faced random reboot once myself. Just to confirm, is the performance on your device sub par too?
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] danz852:
Hi, at the moment my device running smooth. I'm not using my phone for playing game only browsing, sometimes YouTube and social media apps.

I have problem with phone encryption. Everytime i tried to encryp, the phone bootloops on Asus logo. Can u confirm this happens to your phone too?

--------

Cc: @Gaurav24 is this rom support phone encryption? Thanks.
[Asus Zenfone Max Pro M2 ROMs, Kernels, Recoveries,] Herbert Endrian:
Can I upgrade Android 10 to Android 11 without losing my data? Right now im using latest PixelExperience Android 10 build
[Sony Xperia 1 II Questions & Answers] waqypaqy:
HI all,

Moved from the XZ Premium to the Xperia 1 II.

On my old phone, when I type in my PIN it automatically unlocks the screen without me having to tap the "Enter" button.

Can this be done on the new phones?
[Google Pixel 4a Questions & Answers] Escabrera:
So i tried updating my phone and rerooting but as soon as i flashed the patched image something got corrupted and its only been pain now for the last few hours. Ive been super irresponsible in not backing up my phone away from the phone so I would rather not lose everything by flashing the factory image so anything and everything helps. for context it booted into 11 fine but as soon as I touched fastboot and the latest .img files is when stuff started going south.

edit: fixed the issue another way but an answer for that question would be nice to finally have on the internet.
[Google Pixel 4a Questions & Answers] a1291762:
I'm not very clear about what you did... The regular Magisk OTA process is:

1. Uninstall Magisk.

2. Install the OTA (do not reboot).

3. Install Magisk (after OTA).

The more involved process I've used (when the Magisk backup isn't valid) is:

1. Fastboot flash the vanilla boot.

2. Fastboot boot the patched boot.

3. Install the OTA (do not reboot).

4. Install Magisk (after OTA).

If you are doing a fastboot flash or boot you need to make sure the image you are using exactly matches your system. Which is especially important for the initial install. If you boot the wrong image, rebooting will fix it. If you flash the wrong image you have to flash the right image to fix it. That's why Magisk install has you fastboot boot and install from Magisk manager, less chance of a permanent issue :)

If you were going from Android 10 to 11 with Magisk 20, that will be a problem.
[Google Pixel 4a Questions & Answers] a1291762:
To answer the question in the title... You cannot access user data from fastboot. But you can probably fastboot boot TWRP and use that to access your data. I've done that before, but not on this phone.
[Google Pixel 4a Questions & Answers] cmstlist:
Unfortunately the only build of TWRP that anyone has posted is unable to boot on Android 11 and I've not seen any other serious effort.

Assuming you were working entirely with stock ROMs, my best recovery from an unbootable state has been to reflash the stock boot.img, then boot into recovery, and apply over ADB the full downloadable OTA zip. No data wipe occurs.
[Google Pixel 4a Questions & Answers] a1291762:
I just tried to boot TWRP and it didn't work. Odd because it shouldn't depend on anything on the device... Looks like the bootloader is rejecting it :(

"Error verifying the received boot.img: Invalid Parameter"