Samsung Galaxy A50 (a505f) after Bootloader stuck in Download mode - Samsung Galaxy A50 Questions & Answers

Hello,
I erased the Bootloader and tried to flash TWRP to RECOVERY using heimdall.
Now the phone will not power on without power, but it powers into the Downloading... Do not turn off target.
It has the following errors:
(AVB Fail)
Error validating footer.
Error verifying vbmeta image: invalid vbmeta header
CUSTOM RECOVERY
I've check that it was the correct TWRP version (matches model number)
Has anyone experienced this error?
Thanks for reading

coder112 said:
Hello,
I erased the Bootloader and tried to flash TWRP to RECOVERY using heimdall.
Now the phone will not power on without power, but it powers into the Downloading... Do not turn off target.
It has the following errors:
(AVB Fail)
Error validating footer.
Error verifying vbmeta image: invalid vbmeta header
CUSTOM RECOVERY
I've check that it was the correct TWRP version (matches model number)
Has anyone experienced this error?
Thanks for reading
Click to expand...
Click to collapse
Hello and good afternoon, @coder112 Welcome to XDA! I hope you'll always get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved your thread to
Samsung Galaxy A50 Questions & Answers
Ask your questions about the Samsung Galaxy A50 and get answers from the community! Please be as specific as possible when posting.
forum.xda-developers.com
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator

Related

TM-520 tried to install lineage-14.1-20170720-nightly-n1awifi-signed.zip with TWRP

new to all this - so be gentle
Device Samsung Galaxy Tab Pro 10.1 wifi
installed TWRP and have just tried to install lineage-14.1-20170720-nightly-n1awifi-signed.zip from download.lineageos.org/n1awifi[/url
all seems ok - says it's patching the system image, then get
E:unknown command [log]
E:unknown command [log]
detected filesystem ext4 for /dev/block/platform/dw_mmc.0/by-name/SYSTEM
script succeeded: result was [1.000000]
updating partition details...
...done
then when reboot option selected the message says no OS installed.
so all I have now is TWRP Recovery
Help required
jimiswype said:
new to all this - so be gentle . Device Samsung Galaxy Tab Pro 10.1 wifi
installed TWRP and have just tried to install lineage-14.1-20170720-nightly-n1awifi-signed.zip...
Click to expand...
Click to collapse
Your best bet is to post this question within the following Official LineageOS thread for your device.
https://forum.xda-developers.com/showthread.php?t=3457898
Good Luck!
~~~~~~~~~~~~~~~
I DO NOT PROVIDE SUPPORT VIA PM UNLESS ASKED/REQUESTED BY MYSELF.
PLEASE KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Cannot get to boot to twrp temporarily

HI,
I obtained a nokia 6.1 recently.
I had the bootloader unlocked.
I then went to flash the latest ( official) lineage 17
I did all the usual stuff ( i am not a stranger to installing custom roms ), and then tried to temporarily boot into twrp, in order to flash the lineage zip.
I was using the twrp as recommended on lineage site for this device ( nokia 6.1 TA 1050 )
For some reason, after using fastboot boot twrp.img, ( I renamed the image) the phone just booted back to android one screen.?
I could use power/vol up, to get out and back to existing installation, but nothing else.
I then tried temporarily booting the lineage recovery. ( according to the lineage installation instructions)
This involves using a combination of ''fastboot flash boot'' and hardware keys to get there
This worked fine - and I was able to sideolad the lineage zip.
Problem is, if I want to flash images , and do other stuff the lineage recovery cant, i need twrp ( even temporarily).
After installing lineage 17, I tried again to get into twrp, with the same (non) results.
I was wonderinfg if I was getting confused about slots.
I believed that booting twrp temporarily would boot to the right slot? - maybe not.
I then decided to do fastboot flash boot_a, ( etc, ) and then fastboot flash boot_b, ( etc ) to make sure it would boot off either slot. With hindsight, this was dumb
That got me twrp., but lost me the ability to boot into the lineage installation.
After a bit of a panic, I managed to get back to my lineage install.
I have tried since to temporarily boot twrp ( not to both slots ), and am still getting the same results- it boots to the android one screen, and just sits there.
But - if I try to get to recovery using the hardware buttons, I can get to Lineage recovery - which I find strange, because I thought official lineage packages did not install their recovery by default?
Makes me wonder when I thought I had booted lineage recovery temporarily, that maybe I hadn't, and I just booted into a pre installed recovery using the hardware method.
I am probably doing something stupid ( quite common for me ), can anyone enlighten me ?
Many Thanks
pootler
O.k
So I think I found a method in the thread below this - on the third page
I will chek iif it works
Pootler
pootler said:
O.k
So I think I found a method in the thread below this - on the third page
I will chek iif it works
Pootler
Click to expand...
Click to collapse
Yes - it appears that if you cannot boot into twrp temporarily , then this worked for me!
--at your own risk---
fastboot flash recovery <filename>.img
This will FAIL - but ignore and then right after,
fastboot boot <filename> .img
Voila - boots into TWRP temporarily.
Cheers
pootler
@pootler THREAD CLOSED as you already created a subject matter related thread:
TWRP Freeze - close call?
Hi, I had the bootloader unlocked on my 6.1 today. Seemed to go well and guy was ver y professional. Anyway connected my pc, and through adb rebooted to bootloader. Phone entered download/fastboot mode. Was recognised by my pc so I then...
forum.xda-developers.com
Additionally, I've moved the thread to Q&A section.
Please continue to share your new and other experiences in the still open thread. I've copied above posts to there.
XDA Forum Rules (excerpt):
...
5. Create a thread topic or post a message only once, this includes external links & streaming media.
As a large forum, we don't need unnecessary clutter. You're free to edit your message as you like, so if you do not receive an answer, revisit your message and see if you can describe your problem better. Not everyone is online at the same time so it might take a while before you receive an answer.
You can bump your unanswered question once every 24 hours
Duplicate threads and posts will be removed
Always post in an existing thread if a topic already exists, before creating a new thread.
Use our search function to find the best forum for your device.
Links to an external source are only allowed if relevant to the topic in hand. A description must be included, no copy & pasting from the original source.
Self-promotion is forbidden, this includes blogs, social media and video channels etc. Random links will be removed.
...
Click to expand...
Click to collapse

How To Guide (RESTORE SYSTEM ONLY)FIX BRICKED SAMSUNG F62 (ODIN) *no data loss

So successfully you have rooted your device and you just messed up the system partition by tweaking some of the build props lines and all. Now you are stuck in the boot logo that is nothing but boot loop so as far there is no TWRP recovery for this device. So the only solution you have got is to totally re flash the ROM into the partition. Wait a minute we've got a new trick to restore the corrupted system partition.
without having to flash the whole firmware you can just follow this tutorial and fix your brick Samsung F62 device.
❄Requirements
1. Windows computer or any Odin supported device for flashing
2. Latest Samsung Odin
3. Extracted system image of Samsung F62 (super.img.tar you can get it from this thread)
4. Hell lot of patience to get back your device
Downloads(Mediafire)​ODIN FOR F62/M62
Rose in Samsung Galaxy F62 / M62 | OFFICIAL
t.me
super.img.tar
Procedure​ Booting the device into download mode
As your device is in a boot loop condition or stuck it logo you just need to hold the volume down and power button until the screen goes off then immediately you should connect the cable to the PC and device then immediately press volume up and down so that you will boot into download mode.
If you are confused then just follow this video tutorial. After booting your device into download mode just press volume up button to continue.
Boot into download mode tutorial
ODIN & flashing system without losing data
After setting up the Odin in your computer just launch the Odin and ensured that device is connected and displayed in the Odin.
now just place the downloaded super.img.tar ( download from this thread) of Samsung F62 device in the Odin AP column.
now after placing the super.img.tar on AP column of the Odin, now press the start button to start the flashing process.
now just wait until the flashing is done. don't disturb the device or cable.
you can see the flashing process in the Odin.
your device will be automatically restarted after flashing.
repeat this process whenever your device gets bricked.
This is the only method to restore the system without losing of personal data as we don't have TWRP recovery this is the only way to restore the system without losing data.
i hope this helped you out guys
now you can safely tweak your system partition.
End lines​​i'm new to this thread writing.
This is my first biggest thread on my favorite device
my mom just gifted me this flagship device And I just love to tweak this device and I also love to help others from getting out of tough situations
The super.img is extracted from the official firmware and converted to super.img.tar by me and i personally tested this on my device so you can follow this method safely.
This tutorial is done by me & didn't copy it from anyone.
You can also just extract the super.img from the firmware and convert the image to .tar using this 7 zip software in windows 10.
I hope this tutorial helped you out and feel free to reply to this thread.
Just thank me and that will be the biggest appreciation for me
@rc chanu I've changed the prefix of your thread from "Development" to "How To Guide" as the thread didn't qualify for the first one. Please review the sticked guidance prior to your next posting and don't change the prefix back. Thanks for your cooperation.
Regards
Oswald Boelcke
Senior Moderator

[CLOSED] Realme 6 Pro stuck on "the current image(boot/recovery) has been destroyed and cannot boot" with locked bootloader

Guys, I need a light, I went to block the bootloader of my cell phone (Realme 6 Pro - RMX2063) and when it turned on the message "the current image(boot/recovery) has been destroyed and cannot boot", and I can't more enter fastboot . What I got was to enter the download mode and it was recognized as a qualcomm device in the windows device manager and in the Qfil program, but I don't have the files to flash by this method, has anyone done it or has another solution ? Thanks in advance for anyone who can help me, and sorry for typos, I'm using the translator.
lucaas_ said:
Guys, I need a light, I went to block the bootloader of my cell phone (Realme 6 Pro - RMX2063) and when it turned on the message "the current image(boot/recovery) has been destroyed and cannot boot", and I can't more enter fastboot . What I got was to enter the download mode and it was recognized as a qualcomm device in the windows device manager and in the Qfil program, but I don't have the files to flash by this method, has anyone done it or has another solution ? Thanks in advance for anyone who can help me, and sorry for typos, I'm using the translator.
Click to expand...
Click to collapse
@lucaas_ Welcome to XDA. I hope you'll always get the support you require.
However, thread closed as duplicate of your posts in this thread
[Tool] RFT - REALME Flash Tool to flash stock ROM (For Unlocked Bootloader)
REALME FLASHTOOLS V 1.1.3 This tool can make you easier to install stock roms, Rollback, Downgrade This program is made for Windows, with .NET Framework 4.5.1 This is VB.net program What the tool can do: - Flash phone - For now the tool...
forum.xda-developers.com
Please review the XDA Forum Rules with special emphasis on rule no. 5 and post only ONCE.
Regards
Oswald Boelcke
Senior Moderator

[RECOVERY][OFFICIAL] TWRP 3.7.0 for Galaxy A51 4G

Disclaimer​I am not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed.
Please do some research if you have any concerns about features included in this recovery before flashing it!
YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you.
Click to expand...
Click to collapse
- Working: ADB, ADB sideload, fastboot, MTP, flash and many more
- Bugs: Nothing reported yet
How to flash:
From another recovery, flash the image file and turn off the phone, reboot to recovery with key combo.
From ODIN, using 7zip or any way, pack the image to recovery.img inside recovery.tar file and flash in AP slot
Kernel source: Here
Device tree can be found on same organization.
Download Here
Updated to latest Grass
Removed AVB from kernel
Hi,
Do I have to type "multidisabler --all" and install disable dm verity same as version 3.6.2
Update: not work for A515F (Android 12 OneUI 4 A515FXXU5FVG3). After flashing by ODIN, my phone restarted and went to Download Mode
Thanks
This is great news. Thank you very much.
dunhill_ said:
Hi,
Do I have to type "multidisabler --all" and install disable dm verity same as version 3.6.2
Update: not work for A515F (Android 12 OneUI 4 A515FXXU5FVG3). After flashing by ODIN, my phone restarted and went to Download Mode
Thanks
Click to expand...
Click to collapse
Can you take a pic of download mode screen (if contains any error msg in it)
Hello! Do I need to ttype in the terminal multidisabler --all when I flash it?
Royna said:
Can you take a pic of download mode screen (if contains any error msg in it)
Click to expand...
Click to collapse
The message on download mode screen
recovery: Error validating foot ... (0)
recovery: Error verifying vbmeta image: invalid vbmeta header (6)
CUSTOM RECOVERY
VBMETA A515FXXS5FVI1, 56689651R
Note : I tried both firmware A515FXXU5FVG3 and A515FXXS5FVI1. Failed all
Royna said:
- Working: ADB, ADB sideload, fastboot, MTP, flash and many more
- Bugs: Nothing reported yet
Click to expand...
Click to collapse
Thanks for the recovery, it is working quite well for me!
Decryption doesn't seem to be supported though, so it is not possible to write backups to internal storage if encrypted.
And when trying to write to external storage, I get an error (255), after the backup folder has been created.
jer194 said:
Thanks for the recovery, it is working quite well for me!
Decryption doesn't seem to be supported though, so it is not possible to write backups to internal storage if encrypted.
And when trying to write to external storage, I get an error (255), after the backup folder has been created.
Click to expand...
Click to collapse
can u walk me through how u did it from the start I'm new to this. I have rooted the device using magisk and i want to install some new roms on it but i have no knowledge of it.
ryona can u pleas teach me how to flash twrp from the first step i'm new to this and dont know how to do that i have rooted the device using magisk but could not install any roms.
thank u very much
Dexter789 said:
can u walk me through how u did it from the start I'm new to this. I have rooted the device using magisk and i want to install some new roms on it but i have no knowledge of it.
Click to expand...
Click to collapse
Just join the telegram channel(s) for a51:
Royna's Exynos9611 Support
Rules: Use English ONLY, No OT For OneUI port 'ROM' discussion (not kernel) you can go @XRom2, will be more friendly there. GrassKernel: A51, M21, M31, M31s, F41(untested) ROMs: A51, M21, M31, M31s
t.me
Samsung A51 || Global
Channel : @SamsungA51Updates Rules: - Respect Everyone. - Illegal stuff, spamming, selling or any promotion = ban - ENGLISH ONLY - Only ask for help for A51 - NO ETA - No NSFW stuff - Don't pm people unnecessarily + don't ask others to build stuff
t.me
jer194 said:
Just join the telegram channel(s) for a51:
Royna's Exynos9611 Support
Rules: Use English ONLY, No OT For OneUI port 'ROM' discussion (not kernel) you can go @XRom2, will be more friendly there. GrassKernel: A51, M21, M31, M31s, F41(untested) ROMs: A51, M21, M31, M31s
t.me
Samsung A51 || Global
Channel : @SamsungA51Updates Rules: - Respect Everyone. - Illegal stuff, spamming, selling or any promotion = ban - ENGLISH ONLY - Only ask for help for A51 - NO ETA - No NSFW stuff - Don't pm people unnecessarily + don't ask others to build stuff
t.me
Click to expand...
Click to collapse
l aint allowed to message for some reason, the bot thinks im spamming.
dunhill_ said:
The message on download mode screen
recovery: Error validating foot ... (0)
recovery: Error verifying vbmeta image: invalid vbmeta header (6)
CUSTOM RECOVERY
VBMETA A515FXXS5FVI1, 56689651R
Note : I tried both firmware A515FXXU5FVG3 and A515FXXS5FVI1. Failed all
Click to expand...
Click to collapse
Install TWRP Recovery on Samsung Galaxy A51
Looking to install custom rom, enhance the performance, battery life, and overall functionality of your Samsung Galaxy A51? Installing TWRP is the first step
magiskzip.com
root phone and flash twrp from this site
Sorry
I'm wrong
Drafterek said:
Install TWRP Recovery on Samsung Galaxy A51
Looking to install custom rom, enhance the performance, battery life, and overall functionality of your Samsung Galaxy A51? Installing TWRP is the first step
magiskzip.com
root phone and flash twrp from this site
Click to expand...
Click to collapse
Thanks
Did you flash this recovery?
Which version of the recovery and does it support One UI 5 (Android 13)?
dunhill_ said:
Thanks
Did you flash this recovery?
Which version of the recovery and does it support One UI 5 (Android 13)?
Click to expand...
Click to collapse
yes
version 3.7.0_11.0 and this is the only version that works with my samsung on android 13
but to flash the phone must be rooted
to run twrp your phone must be connected to the computer and you must hold the volume up + power button
As a custom rom, I recommend lineageOS 20
ye its only work with flashed dm verity + magisk, but not sure with the magisk one.
Royna said:
- Working: ADB, ADB sideload, fastboot, MTP, flash and many more
- Bugs: Nothing reported yet
How to flash:
From another recovery, flash the image file and turn off the phone, reboot to recovery with key combo.
From ODIN, using 7zip or any way, pack the image to recovery.img inside recovery.tar file and flash in AP slot
Kernel source: Here
Device tree can be found on same organization.
Download Here
Click to expand...
Click to collapse
can you take more details in Odin method, thit is the first time I do with a51 so i dont understood clearly about that. Can I just flash tar file by Odin?
Hi, this is my first time posting on this forum!! I am currently flashing TWRP via ODIN and the process went smoothly, however, when i go and practically execute any commands such as INSTALL, WIPE, or BACKUP, it gives an error. i am getting frustrated as I want to run a custom from. my bootloader is unlocked and I have tried re-flashing twrp. pls help..
GlitchMania said:
Hi, this is my first time posting on this forum!! I am currently flashing TWRP via ODIN and the process went smoothly, however, when i go and practically execute any commands such as INSTALL, WIPE, or BACKUP, it gives an error. i am getting frustrated as I want to run a custom from. my bootloader is unlocked and I have tried re-flashing twrp. pls help..
Click to expand...
Click to collapse
ALSO the ROM i am trying to install is COMPATIBLE and the TWRP is running on the latest version. i scoured the internet for any clue but the issue remains..... my device-SAMSUNG GALAXY A51 4G. MODEL-A515F

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