Related
Hey guys, I'm at a lost here. I don't think I'm that stupid but I am following all steps from the guides to install TWRP without luck. I already managed to unlock my bootloader with Axon7Toolkit. I already certified that QUSB_Bulk driver is installed, I did it with Zadig, but when in EDL mode, even after killing adb, the axon7tool can't find it. I tried installing a zip with the toolkit but when I choose the package, the toolkit simply closes. Is that me? My phone?
Thank you!
gibawatts said:
Hey guys, I'm at a lost here. I don't think I'm that stupid but I am following all steps from the guides to install TWRP without luck. I already managed to unlock my bootloader with Axon7Toolkit. I already certified that QUSB_Bulk driver is installed, I did it with Zadig, but when in EDL mode, even after killing adb, the axon7tool can't find it. I tried installing a zip with the toolkit but when I choose the package, the toolkit simply closes. Is that me? My phone?
Thank you!
Click to expand...
Click to collapse
What software version are you on?
I was at latest nougat but I downgraded to B10
Doing it via fastboot never fails for me.
Get to fastboot put two img in adb folder (I rename it for ease of typing since I suck) rename to recovery.img
Type this cmd in adb
Fastboot flash recovery recovery.img
Reboot to recovery and root. Done deal
download 3.1.0.0 twrp into your download folder on your desktop enter fastboot into your phone open up your command prmt type fastboot devices, your phone should appear then type fastboot flash recovery then go to the twrp right click drag it into the command prmt air page and place it there. you should see the file then hit enter. It'll take like 5 seconds it's really fast then reboot t recovery. when in twrp it'll ask you to install it again say no and uncheck the to options. DONE.
After loads of stress and bangs on the table I managed to unlock, install TWRP, LOS and root. I removed every driver related to my cell phone, deleted everything I download from it and started from scratch. I installed TWRP via fastboot but wasn't able to enter recovery mode, than I mase the stupidity to lock the bootloader back and got stuck in that password screen. Then I gave another go with the toolkit, unlocked it again and, I don't know how or why, it finally booted TWRP. Now everything is OK. Glad to be back to "Nexus mode" after so many time.
Thank you!
Tried to flash OB3 and SuperSu on my encrypted OP5 with TWRP. Was stuck at OP logo.
Tried to go back to stable Oreo build for OP5. Again, was stuck at OP logo.
Now the screen is unresponsive in TWRP (can't even swipe to allow modifications on the first screen!).
If I install stock recovery, I can navigate recovery with buttons. I tried installing OOS 5 with stock recovery from internal storage. It doesn't work. I tried to adb sideload. The computer throws a bad_alloc error.
Anyone in the same boat, or good enough to advice?
pentruexperiment said:
Tried to flash OB3 and SuperSu on my encrypted OP5 with TWRP. Was stuck at OP logo.
Tried to go back to stable Oreo build for OP5. Again, was stuck at OP logo.
Now the screen is unresponsive in TWRP (can't even swipe to allow modifications on the first screen!).
If I install stock recovery, I can navigate recovery with buttons. I tried installing OOS 5 with stock recovery from internal storage. It doesn't work. I tried to adb sideload. The computer throws a bad_alloc error.
Anyone in the same boat, or good enough to advice?
Click to expand...
Click to collapse
but u'll lost your data
i had this too, you need to flash stock recovery from cmd in yor pc by:
"fastboot flash recovery recovery_name.img"
then wipe everything,
reboot again into recovery
click on adb
and then download the stable firmware oreo 5
in adb mode with stock recovery put firmware in the same folder
and input - adb sideload name_of_firmware.zip
That fixed my phone, i'll hope and yours will be fixed
sk.c0de said:
but u'll lost your data
i had this too, you need to flash stock recovery from cmd in yor pc by:
"fastboot flash recovery recovery_name.img"
then wipe everything,
reboot again into recovery
click on adb
and then download the stable firmware oreo 5
in adb mode with stock recovery put firmware in the same folder
and input - adb sideload name_of_firmware.zip
That fixed my phone, i'll hope and yours will be fixed
Click to expand...
Click to collapse
Thanks,
The device is recognized well by the computer (when I write 'adb devices'). But when I try to sideload ('adb sideload OOS5.zip'), it gives me an error with bad_alloc. any ideas?
pentruexperiment said:
Thanks,
The device is recognized well by the computer (when I write 'adb devices'). But when I try to sideload ('adb sideload OOS5.zip'), it gives me an error with bad_alloc. any ideas?
Click to expand...
Click to collapse
Try unbrick method I think it's the quickest way to get back your device.
hi guys, my computer ( wins10) donset read adb device.
but i i use fastboot commands its able to list my devices, but ' adb devices' shows none listed? i am suck, might have soft brick it, able to boot into stock recocery. any suggestions?
oneplus 5 phone.
What are you trying to do?
Rhoban said:
What are you trying to do?
Click to expand...
Click to collapse
Was trying to update , but got stuck at boot screen .
Just flash the stock ROM with the stock recovery.
I can’t sideload it, “ adb not working “
Rhoban said:
Just flash the stock ROM with the stock recovery.
Click to expand...
Click to collapse
Files all courupted
With stock recovery you can't use adb sideload in windows 10.
If you're unlocked i would flash Codeworkx TWRP, download the OOS 5.0.1 Full Rom Zip, boot into TWRP, copy the zip to your phone or sideload the zip.
If you're not unlocked (and thus being unable to flash twrp) use windows 7 and sideload the zip.
You can download ADB drivers here
Can you boot? Turn on USB debugging , make sure that you allow the device when booted.
Do an advanced devices when in the OS make sure it's there.
Then you can install a TWRP recovery and do what you need to.
maikvitesse said:
With stock recovery you can't use adb sideload in windows 10.
If you're unlocked i would flash Codeworkx TWRP, download the OOS 5.0.1 Full Rom Zip, boot into TWRP, copy the zip to your phone or sideload the zip.
If you're not unlocked (and thus being unable to flash twrp) use windows 7 and sideload the zip.
You can download ADB drivers here
Click to expand...
Click to collapse
Hi bro, I am unlocked ! I mange to find a win7 pc. I ran both commands “adb devices” and “Fastboot devices”
Both shows me my devices number hence drivers are working fine.
Now do I flash twrp and sidleload? Because I can’t sideload in stock “error: *cant read zip*”. Do advice me!
PS: can boot into OS, no OS in system only recovery . USB debugging was on before boot loop happens! Thanks for all advices !
maikvitesse said:
With stock recovery you can't use adb sideload in windows 10.
If you're unlocked i would flash Codeworkx TWRP, download the OOS 5.0.1 Full Rom Zip, boot into TWRP, copy the zip to your phone or sideload the zip.
If you're not unlocked (and thus being unable to flash twrp) use windows 7 and sideload the zip.
You can download ADB drivers here
Click to expand...
Click to collapse
dladz said:
Can you boot? Turn on USB debugging , make sure that you allow the device when booted.
Do an advanced devices when in the OS make sure it's there.
Then you can install a TWRP recovery and do what you need to.
Click to expand...
Click to collapse
Hi ! USB debugging was turn on before boot loop happened. Can’t boot into OS , only recovery
lolitsryan96 said:
Hi bro, I am unlocked ! I mange to find a win7 pc. I ran both commands “adb devices” and “Fastboot devices”
Both shows me my devices number hence drivers are working fine.
Now do I flash twrp and sidleload? Because I can’t sideload in stock “error: *cant read zip*”. Do advice me!
PS: can boot into OS, no OS in system only recovery . USB debugging was on before boot loop happens! Thanks for all advices !
Click to expand...
Click to collapse
be sure your bootloader is unlocked
turn your phone into fastboot
open command prompt to the folder your twrp is in.
rename the twrp image file to recovery.img
do the following command: fastboot flash recovery recovery.img
after that boot into recovery
press adb sideload
on the computer, open command prompt to the folder where your zip file is in.
rename the rom zip file to rom.zip
do the following command: adb sideload rom.zip
done!
Thanks bro, I shall update you on the situation once I done, at work now.
Do I need to “open command promt “ at my sdk folder/plat-form tools?
maikvitesse said:
be sure your bootloader is unlocked
turn your phone into fastboot
open command prompt to the folder your twrp is in.
rename the twrp image file to recovery.img
do the following command: fastboot flash recovery recovery.img
after that boot into recovery
press adb sideload
on the computer, open command prompt to the folder where your zip file is in.
rename the rom zip file to rom.zip
do the following command: adb sideload rom.zip
done!
Click to expand...
Click to collapse
hi bro, sideload failed i think, i cant find sideload file. when the sideload end. its gave x1.00 something like that.
maikvitesse said:
be sure your bootloader is unlocked
turn your phone into fastboot
open command prompt to the folder your twrp is in.
rename the twrp image file to recovery.img
do the following command: fastboot flash recovery recovery.img
after that boot into recovery
press adb sideload
on the computer, open command prompt to the folder where your zip file is in.
rename the rom zip file to rom.zip
do the following command: adb sideload rom.zip
done!
Click to expand...
Click to collapse
attach image, successfully sideload but phone still in bootloop?
lolitsryan96 said:
attach image, successfully sideload but phone still in bootloop?
Click to expand...
Click to collapse
you need to wipe everything before flashing
maikvitesse said:
you need to wipe everything before flashing
Click to expand...
Click to collapse
just wipe, now re-sideloading. how it works. bloody nightmare dude.
maikvitesse said:
you need to wipe everything before flashing
Click to expand...
Click to collapse
still stuck at the boot loop, any advice
maikvitesse said:
you need to wipe everything before flashing
Click to expand...
Click to collapse
hi brother finally did it!
my oneplus 5 was encrypted totally forgot about hence need to wipe full back to factory stage, learn my lesson the hard way really grateful for your help!
ps; i am going to Holland on may-june for my euro trip! any places of interest in Holland?
lolitsryan96 said:
hi brother finally did it!
my oneplus 5 was encrypted totally forgot about hence need to wipe full back to factory stage, learn my lesson the hard way really grateful for your help!
ps; i am going to Holland on may-june for my euro trip! any places of interest in Holland?
Click to expand...
Click to collapse
nice good to hear!
haha, well tourists like Amsterdam so do visit that and visit The Hague/Scheveningen. I like these 3 places the most I think. Look up TripAdvisor for good attractions once you're there. do visit 'The Amsterdam Dungeon' don't miss that, I liked it very very much!
how to install the drivers?
maikvitesse said:
With stock recovery you can't use adb sideload in windows 10.
If you're unlocked i would flash Codeworkx TWRP, download the OOS 5.0.1 Full Rom Zip, boot into TWRP, copy the zip to your phone or sideload the zip.
If you're not unlocked (and thus being unable to flash twrp) use windows 7 and sideload the zip.
You can download ADB drivers here
Click to expand...
Click to collapse
Cannot adb to the phone in FASTBOOT. adb devices shows nothing when in FASTBOOT, but shows the device when in normal boot.
Hence I cannot upgrade TWRP from 3.2.1-1 to 3.2.3-0. Was trying this so to upgrade from beta23 to the beta 26, now 27 with which 3.2.1-1 seems to have problems.
A 2nd approach, just re-installing beta23 without Magisk18 gives the stock recovery which manages the beta27 install. But then I'm blocked from a Magisk18 install and still cannot use FASTBOOT mode to put TWRP back on.
Thought the adb drives could be old and sought new drivers, even assuming your link is to the most current I don't know how to get my Windows7 to use the zip file. Can you assist? This would let me put the latest TWRP, hence install Magisk18 and be rooted again!
Hi - I am trying to reinstall TWRP on my OP6T after upgrading to OOS 10.3.0.
I am running Minimal ADB and Fastboot v1.4.3 on my Win10 PC. I have connected my phone to my PC, and entered Fastboot mode. The OP6T is detected when I do a fastboot devices command.
Next, I try doing a temporary Recovery Mode boot into TWRP with a fastboot boot twrp-3.3.1-1-fajita.img command. This is where I run into a problem ... While the Minimal ADB and Fastboot window says that the TWRP image was sent to the OP6T, I am still stuck on the Fastboot screen, and the phone is locked up and doesn't reboot the image.
What is going wrong?
¿GJ?
¿GotJazz? said:
Hi - I am trying to reinstall TWRP on my OP6T after upgrading to OOS 10.3.0.
I am running Minimal ADB and Fastboot v1.4.3 on my Win10 PC. I have connected my phone to my PC, and entered Fastboot mode. The OP6T is detected when I do a fastboot devices command.
Next, I try doing a temporary Recovery Mode boot into TWRP with a fastboot boot twrp-3.3.1-1-fajita.img command. This is where I run into a problem ... While the Minimal ADB and Fastboot window says that the TWRP image was sent to the OP6T, I am still stuck on the Fastboot screen, and the phone is locked up and doesn't reboot the image.
What is going wrong?
¿GJ?
Click to expand...
Click to collapse
I'm having the same problem
¿GotJazz? said:
Hi - I am trying to reinstall TWRP on my OP6T after upgrading to OOS 10.3.0.
I am running Minimal ADB and Fastboot v1.4.3 on my Win10 PC. I have connected my phone to my PC, and entered Fastboot mode. The OP6T is detected when I do a fastboot devices command.
Next, I try doing a temporary Recovery Mode boot into TWRP with a fastboot boot twrp-3.3.1-1-fajita.img command. This is where I run into a problem ... While the Minimal ADB and Fastboot window says that the TWRP image was sent to the OP6T, I am still stuck on the Fastboot screen, and the phone is locked up and doesn't reboot the image.
What is going wrong?
¿GJ?
Click to expand...
Click to collapse
3.3.1.-1???...
cultofluna said:
3.3.1.-1???...
Click to expand...
Click to collapse
Affirmative. Fajita 3.3.1-1. See attached screenshot from TWRP.me. Should I be booting into a different version?
¿GotJazz? said:
Affirmative. Fajita 3.3.1-1. See attached screenshot from TWRP.me. Should I be booting into a different version?
Click to expand...
Click to collapse
Those "official" TWRP builds don't work properly on Android 10. Here is a link to the one you need:
https://forum.xda-developers.com/on...overy-unofficial-twrp-touch-recovery-t3861482
jp0469 said:
Those "official" TWRP builds don't work properly on Android 10. Here is a link to the one you need:
https://forum.xda-developers.com/on...overy-unofficial-twrp-touch-recovery-t3861482
Click to expand...
Click to collapse
Thanks, @jp0469! This helps a lot!
Just to be clear (and to get to a successful conclusion without a bricked phone), I won't be installing a TWRP installer ZIP file after booting into this TWRP image (The old style method), but instead installing the same TWRP IMG file as a "Recovery RAM Disk", correct?
¿GJ?
¿GotJazz? said:
Thanks, @jp0469! This helps a lot!
Just to be clear (and to get to a successful conclusion without a bricked phone), I won't be installing a TWRP installer ZIP file after booting into this TWRP image (The old style method), but instead installing the same TWRP IMG file as a "Recovery RAM Disk", correct?
¿GJ?
Click to expand...
Click to collapse
Need a little more info before you proceed.
I know you said that you're currently on Android 10.3.0
Are you rooted with Magisk? If not, are you planning on rooting?
jp0469 said:
Need a little more info before you proceed.
I know you said that you're currently on Android 10.3.0
Are you rooted with Magisk? If not, are you planning on rooting?
Click to expand...
Click to collapse
I was rooted with Magisk, but that got lost when I did the 10.3.0 update. Definitely planning on TWRPing and rooting again, as long as it's safe.
¿GotJazz? said:
I was rooted with Magisk, but that got lost when I did the 10.3.0 update. Definitely planning on TWRPing and rooting again, as long as it's safe.
Click to expand...
Click to collapse
Stick to good old ones...
Once booted in twrp via fastboot flash the installer zip. It has always worked and will always. Always latest version. And flash Magisk after.
¿GotJazz? said:
I was rooted with Magisk, but that got lost when I did the 10.3.0 update. Definitely planning on TWRPing and rooting again, as long as it's safe.
Click to expand...
Click to collapse
Put the latest Magisk zip and TWRP installer (zip file) on your phone's internal memory if you don't already have them there. Now you can fastboot boot the TWRP img file (Q version). Next flash the TWRP zip to permanently install TWRP into recovery. Reboot back to recovery to make sure it worked and then flash Magisk to re-gain root.
Reboot
Thanks, guys - The only reason I asked about the alternate "RAM Disk" method was because it was listed as the installation method by the developer on the link that @jp0469 provided earlier.
I'll try the old-fashioned method, since y'all say that it works OK.
I have a brand new hp windows 10 PC and a new op6t converted to international version. Running pie latest oxygen os. I need to get minimal adb fastboot installed so I can install twrp and root. Ik it's a little different process to get twrp on 6t but I need some help. Can someone provide me with the correct fastboot to install
[email protected] said:
I have a brand new hp windows 10 PC and a new op6t converted to international version. Running pie latest oxygen os. I need to get minimal adb fastboot installed so I can install twrp and root. Ik it's a little different process to get twrp on 6t but I need some help. Can someone provide me with the correct fastboot to install
Click to expand...
Click to collapse
I always install the latest directly from Google. There is a link on this page to the latest version of Windows ADB and Fastboot. Just unzip the file you download into a directory of your choice.
Everytime I try to boot twrp It says waiting on device. What's that mean
[email protected] said:
Everytime I try to boot twrp It says waiting on device. What's that mean
Click to expand...
Click to collapse
It mean you didn't install driver on your PC.
---------- Post added at 03:38 AM ---------- Previous post was at 03:35 AM ----------
¿GotJazz? said:
Hi - I am trying to reinstall TWRP on my OP6T after upgrading to OOS 10.3.0.
I am running Minimal ADB and Fastboot v1.4.3 on my Win10 PC. I have connected my phone to my PC, and entered Fastboot mode. The OP6T is detected when I do a fastboot devices command.
Next, I try doing a temporary Recovery Mode boot into TWRP with a fastboot boot twrp-3.3.1-1-fajita.img command. This is where I run into a problem ... While the Minimal ADB and Fastboot window says that the TWRP image was sent to the OP6T, I am still stuck on the Fastboot screen, and the phone is locked up and doesn't reboot the image.
What is going wrong?
¿GJ?
Click to expand...
Click to collapse
Type Command: fastboot flash boot
And Use TWRP 3.3.1.30 .
Hi - I am trying to reinstall TWRP on my OP6T after upgrading to OOS 10.3.0.
I am running Minimal ADB and Fastboot v1.4.3 on my Win10 PC. I have connected my phone to my PC, and entered Fastboot mode. The OP6T is detected when I do a fastboot devices command.
Next, I try doing a temporary Recovery Mode boot into TWRP with a fastboot boot twrp-3.3.1-1-fajita.img command. This is where I run into a problem ... While the Minimal ADB and Fastboot window says that the TWRP image was sent to the OP6T, I am still stuck on the Fastboot screen, and the phone is locked up and doesn't reboot the image.
What is going wrong?
Click to expand...
Click to collapse
same thing happened to me, but my screen went black and i cant seem to turn it back on again. what a day. fml
i really need help, i only have that one phone for daily usage. arghhhh
uncleheng said:
same thing happened to me, but my screen went black and i cant seem to turn it back on again. what a day. fml
i really need help, i only have that one phone for daily usage. arghhhh
Click to expand...
Click to collapse
press volume down,up and power button same time for 10sec your phone will boot to bootloader mode.
After doing the fastboot boot twrp-3.3.1-30-fajita-Q-mauronofrio.img in Fastboot Mode, I installed twrp-3.3.1-30-fajita-installer-mauronofrio.zip in the booted TWRP Recovery Mode, and everything is working fine again.
Thanks, guys!
Hey I am running Android 10.3.7 and am having the same problem, I tried unofficial twrp linked abouve and still stuck on fastboot screen, I think I'm using abd 1.43, if twrp doesn't work is there an alternative? I'm newish to rooting I've rooted other phones but that was back in the good old days where it wasn't complicated. I am running a T-Mobile phone converted to international with bootloader unlocked
Hi,
Today I wanted change my recovery. I had the Lineage OS recovery, but i was trying to install the twrp recovery.
So, the guide of twrp says that you should boot the twrp via fastboot boot twrp.img and install via the booted twrp. But I mistaken the command and I wrote fastboot flash boot twrp.img, I tried to reboot and the device booted himself in fastboot with the enter reason "error boot prepare" and I can't boot into the system or recovery.
I tried to flash the official image downloaded from the Google Developers website, but when i run ./flash-all.sh, console get stuck. I waited for about 15 minutes but nothing. I tried even the official Android Flash Tool but after 10 seconds it says "Your device stopped responding. You may have to select restart in the bootloader menu in order for it to be recognised again."
Does anyone know how to help me? Thanks in advance.
GioPan_ said:
Hi,
Today I wanted change my recovery. I had the Lineage OS recovery, but i was trying to install the twrp recovery.
So, the guide of twrp says that you should boot the twrp via fastboot boot twrp.img and install via the booted twrp. But I mistaken the command and I wrote fastboot flash boot twrp.img, I tried to reboot and the device booted himself in fastboot with the enter reason "error boot prepare" and I can't boot into the system or recovery.
I tried to flash the official image downloaded from the Google Developers website, but when i run ./flash-all.sh, console get stuck. I waited for about 15 minutes but nothing. I tried even the official Android Flash Tool but after 10 seconds it says "Your device stopped responding. You may have to select restart in the bootloader menu in order for it to be recognised again."
Does anyone know how to help me? Thanks in advance.
Click to expand...
Click to collapse
Do you have tryied to run the official google tool in Windows to try to rescue it?
Estebiu said:
Do you have tryied to run the official google tool in Windows to try to rescue it?
Click to expand...
Click to collapse
Yes, I wrote in the post, I tried both the command line tool and the chrome version. Btw i'm on linux
Okay so, I fixed.
For anyone who will have this problem you just need to flash official Android 9 and next Android 10. Only with Android 10 you can use fastboot flash boot recovery.img (you can't use twrp in android 10 with the Pixel 3a)
GioPan_ said:
Okay so, I fixed.
For anyone who will have this problem you just need to flash official Android 9 and next Android 10. Only with Android 10 you can use fastboot flash boot recovery.img (you can't use twrp in android 10 with the Pixel 3a)
Click to expand...
Click to collapse
I'll try this...
GioPan_ said:
Okay so, I fixed.
For anyone who will have this problem you just need to flash official Android 9 and next Android 10. Only with Android 10 you can use fastboot flash boot recovery.img (you can't use twrp in android 10 with the Pixel 3a)
Click to expand...
Click to collapse
Does this work if adb not working? I only have fastboot.
WriteLovey said:
Does this work if adb not working? I only have fastboot.
Click to expand...
Click to collapse
It depends if your pc were authorized, if it was, you can use fastboot to flash the stock version of Android 9, just running the flash-all(.bat) script.
GioPan_ said:
It depends if your pc were authorized, if it was, you can use fastboot to flash the stock version of Android 9, just running the flash-all(.bat) script.
Click to expand...
Click to collapse
I'm not certain I understand what you mean by PC authorized? I'm using a Windows 10 tablet. When the phone is attached to the computer it sees it as a device that can be disconnected through USB.
WriteLovey said:
I'm not certain I understand what you mean by PC authorized? I'm using a Windows 10 tablet. When the phone is attached to the computer it sees it as a device that can be disconnected through USB.
Click to expand...
Click to collapse
All is well. I'm back on my Pixel, yeah!
GioPan_ said:
It depends if your pc were authorized, if it was, you can use fastboot to flash the stock version of Android 9, just running the flash-all(.bat) script.
Click to expand...
Click to collapse
I just had an encounter with this. I was rooting my device (Pixel 3A) and messed up my partitions through accidentally attempting a downgrade which broke all my ****. I was unable to easily reset this device to factory, so it took me several days to figure out and root. I'm getting better though as a hacker, because a year ago this would have taken me a month.
I was able to enter recovery mode (lying down Android, NO COMMAND). From this recovery mode, adb devices -l recognized my device, although I was unable to get a shell.
At first, ADB was telling me the device was authorized, but I messed with a bunch of other stuff (tried to flash a bunch of different partitions and monkey around in general trying to install Magisk) and then ADB started telling me it wasn't authorized when I used devices -l.
Once it said unauthorized, I was unable to issue the device any commands with ADB, so I just used hardware keys to get into recovery mode. From there, I selected OTA update, and it got into sideload mode. At that point, I used adb sideload with the OTA package that I downloaded here https://developers.google.com/android/ota
^^^ That operation did successfully restore my device to factory
This following guide here describes the details of how to use hard keys to enter recovery on this phone (don't download anything from there tho, and make sure your adblock is on)
How to Hard Reset your new Google Pixel 3a [Tutorial]
In this article, you will learn how to start your Google Pixel 3a up into the Recovery Mode and perform the Hard Reset to make it work perfectly again.
thedroidguy.com
I just wanted to say, I've been wrestling this hardbrick for a couple of days with my Pixel 3a.
I've finally overcome it by sideloading the most recent OTA update after using a hard key combo to get into recovery mode. The hard key combo is hold Power Button, tap Volume Up, then release both. Then, all you need is to use the command:
adb sideload <OTA.zip>
^^^OTA wasn't the actual filename though, you can download OTA packages for Pixel 3A here: https://developers.google.com/android/ota
the OTA binaries are NOT the same as the factory images, which is here
Factory Images for Nexus and Pixel Devices | Google Play services | Google for Developers
developers.google.com
Sideloading the OTA package brought my phone back from only having fastboot and recovery mode, even when flash-all.sh from the official downloaded firmware failed. Now I know how to undo damage that I cause by rooting this thing. Since I sideloaded newest firmware, it was also like applying an update. I easily got root after that, and I've logged the process. I'll make it into a guide soon
I'll just note that if you accidentally flashed the TWRP boot image instead of simply booting into it, I believe all you have to do is flash the stock boot.img to fix the problem. Obviously you can sideload the entire rom image, but that shouldn't be necessary.
Using the Windows computer (or whatever computer you are sending ADB commands from), download the full stock image directly from Google. Unzip it and then upzip the folder inside. You should find the boot.img file inside that folder. Take that file and then flash it to the phone using the normal ADB command: fastboot flash boot boot.img
While I haven't tried this myself recently, it should work in theory. The command "fastboot flash boot twrp.img" flashes the boot partition with a non-working twrp image, so replacing the faulty image with the stock boot.img should fix the problem.
If I did the same I would first attempt to manually put device in bootloader/aka fastboot mode then fastboot flash the stock boot.img , sudo fastboot flash boot boot.img --slot all
I only read the op (first post here);but I betcha that would have worked. Then sudo ./flash-all.sh and let it do it's thing.