Database Develop

What was wrong ? Mini CM9 on Xperia X8

Hi everybody,
I tried yesterday to flash my phone with the new mini CM9 + nAa 04 kernel... It did not work resulting in a soft brick.
I solved this problem by flashing back to the stock rom + kernel using flashtool. My device is now working as before.
After many unfruitful research on the forum, i'm forced to ask you what wrong did I do...
My phone was (and is) configured as follow :
Kernel : stock 2.6.2.9
Rom : Android 2.1
Base Band Version : M76XX-TSNCJOLYM-53404015
Built : 2.1.1.C.0.0
Rooted
Bootloader : unlocked
Today I installed xRecovery (which is not needed if I use the Kernel E15_nAa-ics-04_2.6.29.6-nAa-ics-04).
Is it problematic if I want to use the mini CM9 rom ?
How did I do :
I started by flashing the kernel using flashtool and with the latest version kernel E15_nAa-ics-04_2.6.29.6-nAa-ics-04.
The manipulation was successful and kernel was working well.
Then, after having backed up all my settings, apps, contacts, rom and wiped off the data factory settings, I started to flash the rom with CWM (the rom had been stored before on my SD card).
Once the installation finished, the phone reboot... and reboot .... and reboot, etc...
It was only able to display the nAa kernel screen (boot loop), but nothing more.
Finally, I flashed it back to stock version to use it again... OUff
I was a bit scared by the idea of having a hard brick but finally it was just a soft brick.
What do you think about my experience ? I know many of you think that people who do not have necessary skills to do it should not do it ^^ but I want to learn and to make my phone a bit more flexible and fast.
Thank you in advance !
Nico

P'titbateau said:
Hi everybody,
I tried yesterday to flash my phone with the new mini CM9 + nAa 04 kernel... It did not work resulting in a soft brick.
I solved this problem by flashing back to the stock rom + kernel using flashtool. My device is now working as before.
After many unfruitful research on the forum, i'm forced to ask you what wrong did I do...
My phone was (and is) configured as follow :
Kernel : stock 2.6.2.9
Rom : Android 2.1
Base Band Version : M76XX-TSNCJOLYM-53404015
Built : 2.1.1.C.0.0
Rooted
Bootloader : unlocked
Today I installed xRecovery (which is not needed if I use the Kernel E15_nAa-ics-04_2.6.29.6-nAa-ics-04).
Is it problematic if I want to use the mini CM9 rom ?
How did I do :
I started by flashing the kernel using flashtool and with the latest version kernel E15_nAa-ics-04_2.6.29.6-nAa-ics-04.
The manipulation was successful and kernel was working well.
Then, after having backed up all my settings, apps, contacts, rom and wiped off the data factory settings, I started to flash the rom with CWM (the rom had been stored before on my SD card).
Once the installation finished, the phone reboot... and reboot .... and reboot, etc...
It was only able to display the nAa kernel screen (boot loop), but nothing more.
Finally, I flashed it back to stock version to use it again... OUff
I was a bit scared by the idea of having a hard brick but finally it was just a soft brick.
What do you think about my experience ? I know many of you think that people who do not have necessary skills to do it should not do it ^^ but I want to learn and to make my phone a bit more flexible and fast.
Thank you in advance !
Nico
Click to expand...
Click to collapse
Your hardware and software seems alright to me.
Steps: Don't bother about xRecovery. From stock 2.1...
Root again
Flash nAa-ics kernel
Install MiniCM9 and Gapps from first post of MiniCM9 thread
FULL WIPE -- YOU MUST DO THIS
WIPE DALVIK-CACHE TOO
Reboot and have fun
Sent from my X8 using Tapatalk 2

Flash the latest baseband ans try again
Sent from my E15 using Tapatalk 2

Full Wipe will solve the problem.
Sent from my E15i using xda app-developers app

Hi,
Thanks for your replies.
So I don't understand what was wrong as I completely wiped the system prior to flash the Rom.
I proceeded exactly like that :
1.Wipe data factory
2.Wipe cache
3.Wipe dalvik-cache
4.Format system
5.Format cache
6.Format data
7.Rom installation
8.Flash Gapps
I think I have done all the necessary steps to make it working ...
I was maybe not enough patient after installation ?
I'm going to try again today (now I know how to recover from a soft brick ).
Thank you all again.

P'titbateau said:
Hi,
Thanks for your replies.
So I don't understand what was wrong as I completely wiped the system prior to flash the Rom.
I proceeded exactly like that :
1.Wipe data factory
2.Wipe cache
3.Wipe dalvik-cache
4.Format system
5.Format cache
6.Format data
7.Rom installation
8.Flash Gapps
I think I have done all the necessary steps to make it working ...
I was maybe not enough patient after installation ?
I'm going to try again today (now I know how to recover from a soft brick ).
Thank you all again.
Click to expand...
Click to collapse
Good job dude!
just try and try lolZ
maybe you miss something like flash or root..

libera powaemm
It works ! My phone is now booting and I see the CM9 blue droid :highfive:
Special thanks to developers who allow us to have better software !
And thank you for the support you brought me.

congratulation!

P'titbateau said:
It works ! My phone is now booting and I see the CM9 blue droid :highfive:
Special thanks to developers who allow us to have better software !
And thank you for the support you brought me.
Click to expand...
Click to collapse
well well!
enjoy it! :laugh::laugh:

having the same problem
P'titbateau said:
It works ! My phone is now booting and I see the CM9 blue droid :highfive:
Special thanks to developers who allow us to have better software !
And thank you for the support you brought me.
Click to expand...
Click to collapse
So, what step u miss? I also having the same problem. Can tell me your steps? dying for CM9 in my X8 too T-T

slyzerx said:
So, what step u miss? I also having the same problem. Can tell me your steps? dying for CM9 in my X8 too T-T
Click to expand...
Click to collapse
just do what spyder-x said dude!
:laugh::laugh:

Same problem... when i try to install it again I get an error and it says my device is 16i insted of 15i ...
Then I had to flash different rom 3 times to get it working...
Didn't wipe cashe and it worked : )

first instal minicm 3.0.4
after that install minicm 3.0.5(or any nightlie) without any wiping!.

[ROM][CM7][2.3.7] Pure CyanogenMod 7 for Galaxy Mini S5570I

About ROM:
CyanogenMod 7 is a free, community built, aftermarket firmware distribution of Android 2.3.7 (GB), which is designed to increase performance and reliability over stock Android for your device.
Downloads:
First build: http://d-h.st/o5k
What's working?
Boot process
And other I don't know, please test it and report
What's not working?
I don't know, please test it and report
I am not responsible for any damage on your phone!

Changelogs
Reserved for Changelogs

It is made by you? Can anyone put some screenshots please?
Q: wifi works,3G,Bluetooth and camera works?

It's made by me, because there aren't any ROMs for this phone
And for Q: I think yes

tom411 said:
It's made by me, because there aren't any ROMs for this phone
And for Q: I think yes
Click to expand...
Click to collapse
NO ROMS??? Look here, there are minimum 4-5 custom roms. Ya, but what driver had you use? And how can you support this topic if you don't know exacttly if this rom works or not?
EDIT: download link don't work

I thought pure CM7 ROMs. There are ONLY stock-based ROMs. I know it's working(meaning: it can boot)
EDIT: I use drivers provided by broadcom and some libs from samsung stock rom's. And download link works

I will wait until someone will test it. If wifi and 3G works I will boot it up. TNX
EDIT:
1) maiby some ss.
2) Maiby is just my problem if download links don't work.

If you click on download link, what you see?
Download is here: http://d-h.st/o5k

tom411 said:
If you click on download link, what you see?
Download is here: http://d-h.st/o5k
Click to expand...
Click to collapse
When I click on the DOWNLOAD BUTTON from that page, the page don't load and the download don't start. I will restart my PC ( maiby is from my internet provider or from my antivirus software ).
EDIT: if something don't work you can fix it? I mean if I report here that wifi or camera don't work, you can fix it?

I can fix it, but if you need fixed build, someone must test it and report bugs.

I just installed it into my device.
First impresions:
It don't boot up. I receive boot loop.
EDIT: can you post a small tutorial of how to boot it up?

What kernel are you using?

tom411 said:
What kernel are you using?
Click to expand...
Click to collapse
Cyanus 1.4

So please do this:
1. Flash latest Cyanus kernel
2. Go to cwm and wipe data, cache, dalvik and batterystats
3. Format system
4. mount all
5. Flash the rom
6. Reboot recovery and reflash the rom without wiping
7. If not booted wipe data

tom411 said:
So please do this:
1. Flash latest Cyanus kernel
2. Go to cwm and wipe data, cache, dalvik and batterystats
3. Format system
4. mount all
5. Flash the rom
6. Reboot recovery and reflash the rom without wiping
7. If not booted wipe data
Click to expand...
Click to collapse
Still the same

So it shows bootanimation and then again and again? I don't know why, because it boots on my friend's phone.

Alll I can see is the logo of my phone ( Samsung GALAXY mini GT-S5570I ).
R you sure it can boot up?
EDIT: After step 6, when I want to wipe data and cache I receive the next error:
E:format_volume: rfs format failed on /dev/stl11

im downloading now. will try n report tomorrow.
edit: it didnt boot on my phone it gets bootloop. i flashed it with ur method but didnt boot. then i tried these steps below:
wipe data, cache, dalvik cache, battery stats
mount system
format system
mount system
flashed cm7
choosed reboot system then it gets bootloop dont booted plz provide another way
Galaxy Pop Plus'ımdan Tapatalk 2 ile gönderildi.

It is pure compiled from source??
R u using broadcomcm source

anyway... I come back to stock ( for the moment ). Any news from this rom? Now it can boot up?

[How-To]Install Cyanogen Mod 10.1

Ok guys I made this thread bcoz I had a problem with installing Cyanogen Mod 10.1, but as I researched I got to know something that I don't think all the other beginners would not know.
So Here I am today, going to tell you guys (beginners) how you can install CM 10.1 on your Xperia SP.
Code:
Your warranty is now void.
I will bo not responsible for [COLOR="Red"]BRICKED DEVICES DEAD, SD CARDS, THERMONUCLEAR WAR.[/COLOR]
[COLOR="Black"]
Please do some research if you have any concerns about features included in this ROM
before flashing it! YOU are choosing to make these modifications.[/COLOR]
[COLOR="DarkRed"]YOU ARE WARNED[/COLOR]
Now let's start
First you will need to unlock your phone's bootloader. If you don't know how to unlock then search the forum there are guides of unlocking the bootloader. Before you unlock the bootloader, if you are scared that your warranty will be void and bla bla bla...
You can use this software TA Backup All the instructions would be in the software's forum only.
Then you need to unlock the bootloader.
Here you can find the instructions of unlocking the bootloader. (Thanks to DooMLoRD, for his awesome guide)
Guide for unlocking bootloader
NOW IF YOU HAVE UNLOCKED THE BOOTLOADER THEN LET'S START INSTALLING CM 10.1
YOU CAN ALSO DOWNLOAD THE STOCK FIRMWARE FOR XPERIA SP IF SOMETHING GOES WRONG
FIRMWARES CAN BE FOUND HERE http://forum.xda-developers.com/showthread.php?t=2311964
1. YOU WILL NEED TO DOWNLOAD CM 10.1 CM 10.1
2. YOU WILL NEED TO DOWNLOAD A STOCK KERNEL WITH CWM IN IT LINK(THX TO alivanov79 FOR MAKING THIS KERNEL)
http://forum.xda-developers.com/showthread.php?t=2404452
3. PUT THE ROM AND GAPPS ON YOUR EXTERNAL SD CARD. LINK FOR GAPPS(DOWNLOAD CM 10.1 GAPPS ONLY) GAPPS
4. AFTER DOWNLOADING THE KERNEL, INSTALL IT THROUGH FLASHTOOL OR BY CMD (WHICH EVER SUITS YOU)
5. NOW SHUT DOWN YOUR DEVICE AND BOOT IN CWM {FOR GOING IN CWM KEEP PRESSING VOLUME UP BUTTON}
6. AFTER BOOTING UP IN CWM WIPE DATA WIPE CACHE GO IN ADVANCED AND SELECT WIPE DALVIK CACHE
7. AFTER WIPING SELECT INSTALL ZIP FROM SD CARD AND SELECT INSTALL ZIP FROM EXTERNAL SD CARD
8. AFTER INSTALLING CM 10.1 DON'T INSTALL GAPPS FIRST REBOOT AND THEN INSTALL GAPPS
AFTER INSTALLING GAPPS YOU ARE READY TO USE ANDROID 4.2.2 ON YOUR XPERIA SP
IF ANY PROBLEM OCCURS COMMENT
AND PLEASE FORGIVE ME IF I HAVE MISSED SOMETHING BECAUSE THIS IS MY FIRST THREAD
ENJOY YOUR CYANOGEN MOD
AND THANK YOU GUYS FOR HELPING ME

What kernel did you flash? Normaly is the CM kernel included in the .zip package you download.

mrjraider said:
What kernel did you flash? Normaly is the CM kernel included in the .zip package you download.
Click to expand...
Click to collapse
I have flashed the normal kernel only (That come's in the zip)

Seperate or at once(ive not downloaded the rom so i dont know its content)
Sent from my C5303 using XDA Premium 4 mobile app

Why don't you flash the kernel again?

mrjraider said:
Seperate or at once(ive not downloaded the rom so i dont know its content)
Sent from my C5303 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
No bro I extracted the boot.img and flashed the kernel via flashtool. Please help me I want CM 10 on my X SP

After flashing the kernel AND BEFORE INSTALLING THE ZIP you must format system,data,cache and dalvik cache...are you sure you did it?

CyanogenMod 13.0 for Galaxy S4 LTE-A (GT-I9506)

/* Info */
Portion of CyanogenMod 13 to Galaxy S4 LTE-A (GT-I9506).
This ROM is based on ks01lte CyanogenMod 12.1.
For more info, visit http://www.cyanogenmod.org
/* Disclaimer */
Your warranty is now void.
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 ROM
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. Hard. A lot.
/* Supported device */
Galaxy S4 LTE-A (International) (GT-I9506, ks01lte)
/* Unsupported device */
Galaxy S4 LTE-A SK (SHV-E330S, ks01lteskt) (untested)
Galaxy S4 LTE-A KT (SHV-E330K, ks01ltektt) (untested)
Galaxy S4 WITHOUT Snapdragon 800 SoC
/* Known issues */
Testing for now.
/* What you need to know */
This is an official portion of CyanogenMod
'Opensource' does not mean 'no-respect'
Leave credits to original developers
This is only tested on
- GT-I9506 coming from CM 12.1
Other variants, other OS may not be fully compatible
/* Thanks to */
Whole CyanogenMod Team.
/* Contact */
Email : [email protected]
/* Downloads */
cm-13.0-20160109-UNOFFICIAL-ks01lte.zip
Mirror:
Google drive
MD5: 02e810afd27d14a264c63cf47f73af7f
/* Installation */
1. Install CM recovery
2. Put ROM and Gapps on you SD card
3. Enter recovery and do a factory reset
4. Flash ROM and Gapps in order
/* Sources */
Device tree: GitHub
Kernel: GitHub
/* Donations */
If you appritiate my work and want to donate. Here is the link to PayPal
XDA:DevDB Information
CyanogenMod 13.0 for Galaxy S4 LTE-A (GT-I9506), ROM for the Samsung Galaxy S 4
Contributors
solk2
Source Code: https://github.com/CyanogenMod/android_device_samsung_ks01lte
ROM OS Version: 6.0.x Marshmallow
ROM Kernel: Linux 3.4.x
ROM Firmware Required: Device must be rooted and CWM-based recovery installed
Based On: CyanogenMod
Version Information
Status: Testing
Created 2015-12-22
Last Updated 2016-01-09

Perfect. I havent noticed any bugs, this is very smooth also. Maybe its time to make this official

what are the recommended gapps?

Linquinity said:
what are the recommended gapps?
Click to expand...
Click to collapse
Open gapps.

hi on my samsung i9506 wont start stuning on the boot logo.
1.Go to recovery TWRP
2.Full wipe system
3.Install your ROM
4.Install Open GAPPS pico
5.Wipe Dalvik/cache
6.Reboot System
only boot logo 20 min Android wont start
can you help me please? thx

Same with me...also tried with cwm based recovery
Sent from my SM-N9005 using Tapatalk

Mnichovec said:
hi on my samsung i9506 wont start stuning on the boot logo.
1.Go to recovery TWRP
2.Full wipe system
3.Install your ROM
4.Install Open GAPPS pico
5.Wipe Dalvik/cache
6.Reboot System
only boot logo 20 min Android wont start
can you help me please? thx
Click to expand...
Click to collapse
I did exactly same steps as you, but I did not wipe dalvik/cache after flashing rom/gapps. Maybe that is the reason why it didnt work?
And I also wiped everything except local storage and sd card (before install ofc)

Xokoz said:
I did exactly same steps as you, but I did not wipe dalvik/cache after flashing rom/gapps. Maybe that is the reason why it didnt work?
And I also wiped everything except local storage and sd card (before install ofc)
Click to expand...
Click to collapse
Thank you but not help me same problem

I think if you come from arters kernel need to flash with odin the firmware and not only just a factory reset and wipe

Xokoz said:
I did exactly same steps as you, but I did not wipe dalvik/cache after flashing rom/gapps. Maybe that is the reason why it didnt work?
And I also wiped everything except local storage and sd card (before install ofc)
Click to expand...
Click to collapse
sevenlife said:
I think if you come from arters kernel need to flash with odin the firmware and not only just a factory reset and wipe
Click to expand...
Click to collapse
You know last official firmware from sammobile ok?

You dont need sammobile. We are lucky cause in DeHAWks thread there is everything you need for i9506 stock. Search there you will find and the latest one!

everything's really smooth. can anyone get v4a working?

Linquinity said:
everything's really smooth. can anyone get v4a working?
Click to expand...
Click to collapse
After installing app+driver you can try this command as root:
Code:
setenforce 0
Then turn off and on v4a.

zardak said:
After installing app+driver you can try this command as root:
Code:
setenforce 0
Then turn off and on v4a.
Click to expand...
Click to collapse
I'm really sorry but I'm abit of a noob xD how do I do this

Is there the battery drain issue too on this rom?
Envoyé de mon GT-I9506 en utilisant Tapatalk

Linquinity said:
I'm really sorry but I'm abit of a noob xD how do I do this
Click to expand...
Click to collapse
Download a terminal emulator from play store, open it and you will read something like "[email protected]:/ $".
Now type "su" without quotes then press enter. Grant the root access (you have to enable root for apps on developer settings first, but I guess you already did this step before if you succeded on installing v4a driver).
The prompt will change and you'll see "[email protected]:/ $". You are now using the terminal as root user.
Now you can type "setenforce 0" and press enter. You will see no output except another line of prompt ("[email protected]:/ $") but your SELinux is now set to permissive and v4a should work.

zardak said:
After installing app+driver you can try this command as root:
Code:
setenforce 0
Then turn off and on v4a.
Click to expand...
Click to collapse
ohhhhh my god. thank you very much

for some reason I just can't get this to boot like with the official nightlys and CM12.1 from solk it just stays at the Bootanimation forever.
I already flashed newest stock ROM with Odin and tried again after that but nothing changed. Anyone else has any idea?

Seronez said:
for some reason I just can't get this to boot like with the official nightlys and CM12.1 from solk it just stays at the Bootanimation forever.
I already flashed newest stock ROM with Odin and tried again after that but nothing changed. Anyone else has any idea?
Click to expand...
Click to collapse
No problems here using TWRP and wiping all partitions before flashing CM (except external SD) with nano Open Gapps. Also try pulling out battery for some time (2-3 min). Looks like useless, but it is known to fix some weird things.

External SD card is not properly recognized. I can access it using RootExplorer, but applications don't see it.
The card is listed under storage just with its card Name (xxxx-xxxx), but not as "Storage1" like before.
Sent from my GT-I9506 using XDA Free mobile app

[ROM][AOSP][Q]Basic Android 10 AOSP Rom with gapps

hey everyone
I have created a custom rom for you guys that you can flash using ODIN because there is no TWRP Development on the device yet since TWRP doesnt support Super Parititon right now.
Code:
*
* Your warranty is now void.
*
* 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 ROM
* 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.
*/
How to flash:
1. Go into download mode on your device
2. Open up ODIN and choose the AP File
3. Flash it.
4. Boot into recovery so you can factory reset
5. It may restart a couple times, let it do that.
6. Now you should be able to use AOSP
Comes with gapps!!
Download:
Download here
Thanks to;
@map220v
@gabrielfrias

Download link added!! There might be some small bugs but its usable

Awesomeslayerg said:
Download link added!! There might be some small bugs but its usable
Click to expand...
Click to collapse
I tried it several times, but without succes. My tablet (P610) stays in bootloop and is not booting.
I tried it with and without cleaning cache and with and without factory reset.
Went back to stock ROM.

Iceman66 said:
I tried it several times, but without succes. My tablet (P610) stays in bootloop and is not booting.
I tried it with and without cleaning cache and with and without factory reset.
Went back to stock ROM.
Click to expand...
Click to collapse
Hmm ill check that out. You can try using stock vbmeta instead.

Iceman66 said:
I tried it several times, but without succes. My tablet (P610) stays in bootloop and is not booting.
I tried it with and without cleaning cache and with and without factory reset.
Went back to stock ROM.
Click to expand...
Click to collapse
Hey it works fine for me. You can try flashing the latest XAR firmware and try that. I went back to stock and then flashed it. Make sure you go into recovery mode nad factory data reset. After that it should reboot twice. Its gonna reboot to the white logo then its gonna go black and reboot again then wait. its suppose to reboot a few times anyways.

Rom is working great for me. No issues I can see. Great work

FoxyDrew said:
Rom is working great for me. No issues I can see. Great work
Click to expand...
Click to collapse
I'd do lineage problem is idk how to put gapps in it.

Was able to install linage with gapps!

Great rom no issues so far, also pre rooted ?

Ill be uploading a lineage one soon

Amazing work!
Do either of these ROMs happen to support widevine L1?

Awesomeslayerg said:
Ill be uploading a lineage one soon
Click to expand...
Click to collapse
Does it work with pen and pressure ? How about MicroG ? Is it official or a port ? Any bugs?

Awesomeslayerg said:
Was able to install linage with gapps!
Click to expand...
Click to collapse
With Tiptel170's tutorial in the Galaxy A51 thread?

Iceman66 said:
I tried it several times, but without succes. My tablet (P610) stays in bootloop and is not booting.
I tried it with and without cleaning cache and with and without factory reset.
Went back to stock ROM.
Click to expand...
Click to collapse
Iceman66 said:
With Tiptel170's tutorial in the Galaxy A51 thread?
Click to expand...
Click to collapse
Yes sir

Iceman66 said:
I tried it several times, but without succes. My tablet (P610) stays in bootloop and is not booting.
I tried it with and without cleaning cache and with and without factory reset.
Went back to stock ROM.
Click to expand...
Click to collapse
I have the same version and same issue as well. Even after flashing the XAR version of the stock rom or/and a blank vbmeta.

rbnkrnn said:
I have the same version and same issue as well. Even after flashing the XAR version of the stock rom or/and a blank vbmeta.
Click to expand...
Click to collapse
Are you fladhing it using the AP Slot? What version of Odin are you using? The kernel is based on an Euro kernel so i dont know why it wouldnt work. Make sure your vbmeta is stock vbmeta.

Awesomeslayerg said:
Are you fladhing it using the AP Slot? What version of Odin are you using? The kernel is based on an Euro kernel so i dont know why it wouldnt work. Make sure your vbmeta is stock vbmeta.
Click to expand...
Click to collapse
Yes and I've been following you instruction on the thread about flashing the stock vbmeta. I'm using Odin 3.14.1 I have attached a screen of the recovery here :

I am also stuck in a boot loop

Bootloop here too, unfortunately

Awesomeslayerg said:
Are you fladhing it using the AP Slot? What version of Odin are you using? The kernel is based on an Euro kernel so i dont know why it wouldnt work. Make sure your vbmeta is stock vbmeta.
Click to expand...
Click to collapse
I tried is several times after a clean install of latest stock firmware.
I used official Odin 3.14 and patched Odin, and tried it several times with factory reset in advance and after flashing AOSP image.
But without succes, tablet doesn't boot and restarts every 15-20 seconds.
For now i stick to rooted stock firmware with some tweaks.
Did anybody try to install TWRP for A51 via adb?
I found this: https://www.droidthunder.com/install-twrp-recovery-on-galaxy-a51/
The A51 has the same cpu as Galaxy Tab S6 lite, so maybe it will work.