[GUIDE][SM-A107][MTK6765] Unbrick your Samsung Galaxy A10s - Stuck on a black screen, recognized as Preloader USB VCOM and cycling rebooting

[GonicTEAM]

Hi, yesterday I bricked my Galaxy A10s by flashing a custom recovery by Odin (The phone doesn't enter in Download or recovery modes, it just does nothing):

Immediately I started looking for how to fix it, and after a lot of research, here is how to:

REQUIREMENTS​

• Windows 10 x64 bit PC with Internet Connection (may work on Win7/8).
• A USB Cable
• Scatter firmware:
  • For SM-A107M Binary5: https://www.androidfilehost.com/?fid=7161016148664790627
  • For SM-A107F Binary8: https://www.androidfilehost.com/?fid=7161016148664790683

PROCESS​

1- Download this file and decompress it using 7Zip or WinRAR. then open the folder: https://www.androidfilehost.com/?fid=7161016148664790681

2- Python3 installation: open the python installer. Mark the "ADD Pyhton 3.9 TO PATH" option: https://i.imgur.com/9hxjD5p.jpg
Then click "Install Now". When finished click close. Open a cmd (write cmd in Windows Start Menu and open it) and paste this comand:

pip install pyusb pyserial json5​

If all its okay, you must see something like this:

https://imgur.com/YdHQgk2

If not, uninstall all versions of python you have installed and reinstall the provided one, remember to check the "Add to PATH".

3- MTK Driver: open the "MediaTek SP Drivers v2.0 signed" folder, then open Android, do a right click over "android_winusb.inf" and click install. Go back and open "CDC" folder. Right click "cdc-acm.inf" and press install. In both cases, it will say "Installation successfully".

4- Decompress the scatter firmware provided at the first of the post. If you wanna make one, because you have another model or binary, see the next post.

5- Prepair SP Flash Tool: open the "SP_Flash_Tool" folder and execute "flash_tool.exe" as Administrator.
Click "Choose" button in the Scatter-Loading file line and search the folder where you decompressed the Scatter Firmware. Open the file "MT6765_Android_scatter.txt". https://i.imgur.com/BLYlaSX.jpg
Make sure the option below "Authentication File" is "Download Only". If not, select it from the list.
Now, go to "Options" > "Option..." and unmark these 3.
Go to connection and put all like the photo:
Done, now we have SP Flash Tool ready.

5- Connect your Galaxy A10s to your computer. Your phone its cycling rebooting itself, entering into preloader mode for 2 seconds, every 10-15 seconds.
Now install "libusb-win32-devel-filter-1.2.6.0.exe" and click finish to open it. Select "Install a device filter" and click next. A list will appears, so wait for your Phone to enter into Preloader. It will appear in the list (as Preloader USB VCOM Port), so rapidly select it and then click "Install". https://i.imgur.com/Kzv3lkD.jpg
If it appears, all is okay, if not, repeat this step. Don't close the program after do this.

6- With this done, open the "bypass_utility-v.1.4.2" folder. In the keyboard, press "Shift" (the key with a up pointed arrow, below enter) and without releasing it, right click inside the folder. In the menú, click "Open Power Shell here".
Now, write this and press enter:

python main.py​

If this command does nothing, try with this variant: py -3 main.py
Now, wait for the phone reboot again in preloader. This time, the script will make the phone keep in the Preloader, and the PowerShell will tell you that an error was ocurred. https://i.imgur.com/ZCsRmtN.jpg
So, open libusb-win32 program from the taskbar and search for "Mediatek USB Port". Select it and press next, to install the device filter for it.

https://imgur.com/ouu6u2c

7- Maximize Power Shell and write this command again:

python main.py

(or py -3 main.py)
NOTE: If PowerShell it's stuck on "waiting for the device" for more than 2 minutes, press Power, vol+, and vol- buttons at the same time for 7 to 15 seconds to force a reboot.

This time, the log will tell you "[2021-08-21 13:28:01.303625] Protection disabled". https://i.imgur.com/2avTTNi.jpg
Plz, don't disconnect the phone.

8- Go back to SP Flash Tool program and click in the "Download" button and it will start to flash your phone. https://i.imgur.com/iknxeUE.jpg

https://imgur.com/huHh7tz

9- When finished, you will see a green tick and your phone will disconnect from the computer. Now, press the power and volume down (-) buttons at the same time, and keep it until you see the Download Mode.

https://imgur.com/Bi4AITN

10- Now, flash the last Firmware for your phone using Odin. Exists a lot of tutorials on Google and YouTube for it, so i will leave you to search one.

11- Done! Your phone its alive again.

Thanks to fromgodd & Dego09 for helping me, without them, this tutorial wasn't possible​

My english isn't perfect. You can tell me any corrections. Thanks in advance.​

 

[GonicTEAM]

How to make a Scatter Firmware for your Galaxy A10s​

REQUIREMENTS​

- Last version of 7Zip ZStandard. Download it from the releases and install: https://github.com/mcmilk/7-Zip-zstd/releases
- A firmware that match with your phone binary. If you dont know, use the last one. You can download it from various sites, but i recommend to use SamFW.com. You need to decompress the firmware to get the 5 files needed.

PROCESS​

1- Create a new folder and place this file in: https://www.androidfilehost.com/?fid=7161016148664790665

2- Now, go where you downloaded the firmware. Right click on the AP File and click "7Zip ZS" option and select "Open Archive" (first option).

3- We will open file by file, and then we will drag the content of each one inside to the folder with the scatter.txt file. Repeat it with AP, BL, CP and CSC Firmware files (HOME_CSC isn't used).
The result will be like this:

https://imgur.com/wcHVfop

3- Now go to "View" tab in the Windows Explorer, and then tick "File Name Extensions".

https://imgur.com/V4FI1Tl

4- Rename the following files:

md1img.img to md1rom.img​

scp.img to tinysys-scp1.bin​

lk.img to lk.bin​

tee.img to trustzone1.bin​

You must change name AND extension.

5- Extract the preloader binary: for this, open the "WMR MTK" folder and execute "WwR_MTK_2_51.exe", then wait for 120 seconds (because it's a free version).
Go to preloader tab, then click "Select File" and open the "Preloader.img" file.

https://imgur.com/w6oNJv6

Then click on "To extract preloader and save as..." and save the file in the folder with the other using the name "preloader_s96116aa1.bin".

https://imgur.com/m2lIeRv

6- Your Scatter Firmware it's done for be flashed on your device. The result will be like this:

https://imgur.com/WGge7xa

Post in the thread any inconveniences if you face, I will try to help you.

 

[GonicTEAM]

RESERVED POST

 

[rberet]

How to make a Scatter Firmware for your Galaxy A10s​

REQUIREMENTS​

- Last version of 7Zip ZStandard. Download it from the releases and install: https://github.com/mcmilk/7-Zip-zstd/releases
- A firmware that match with your phone binary. If you dont know, use the last one. You can download it from various sites, but i recommend to use SamFW.com. You need to decompress the firmware to get the 5 files needed.

PROCESS​

1- Create a new folder and place this file in: https://www.androidfilehost.com/?fid=7161016148664790665

2- Now, go where you downloaded the firmware. Right click on the AP File and click "7Zip ZS" option and select "Open Archive" (first option).

3- We will open file by file, and then we will drag the content of each one inside to the folder with the scatter.txt file. Repeat it with AP, BL, CP and CSC Firmware files (HOME_CSC isn't used).
The result will be like this:

https://imgur.com/wcHVfop

3- Now go to "View" tab in the Windows Explorer, and then tick "File Name Extensions".

https://imgur.com/V4FI1Tl

4- Rename the following files:

md1img.img to md1rom.img​

scp.img to tinysys-scp1.bin​

lk.img to lk.bin​

tee.img to trustzone1.bin​

You must change name AND extension.

5- Extract the preloader binary: for this, open the "WMR MTK" folder and execute "WwR_MTK_2_51.exe", then wait for 120 seconds (because it's a free version).
Go to preloader tab, then click "Select File" and open the "Preloader.img" file.

https://imgur.com/w6oNJv6

Then click on "To extract preloader and save as..." and save the file in the folder with the other using the name "preloader_s96116aa1.bin".

https://imgur.com/m2lIeRv

6- Your Scatter Firmware it's done for be flashed on your device. The result will be like this:

https://imgur.com/WGge7xa

Post in the thread any inconveniences if you face, I will try to help you.

OMG! It Works!!! Thank you a hundred of times!

 

[Radiant404]

Everything is fine. in step 8 when i click download it says its not verified. what are the conneciton options you mentioned in step 5. thank you in advance ♥

 

[Radiant404]

wheni click download gives me this error status_sec_img type_mismatch

 

[GonicTEAM]

Everything is fine. in step 8 when i click download it says its not verified. what are the conneciton options you mentioned in step 5. thank you in advance ♥

It's because u aren't follow the script step to bypass the protection.

 

[prudenthps]

It's because u aren't follow the script step to bypass the protection.

Everything is fine. in step 8 when i click download it says its not verified. what are the conneciton options you mentioned in step 5. thank you in advance ♥

I've got the same issue, i followed carefully the indications too.
I'm loosing my mind with this

Greetings.

 

[GonicTEAM]

I've got the same issue, i followed carefully the indications too.
I'm loosing my mind with this

Greetings.

View attachment 5400405

Try to make a new scatter firmware, or search more info about it on Google. I didn't face that problem in my A107M

 

[prudenthps]

Try to make a new scatter firmware, or search more info about it on Google. I didn't face that problem in my A107M

I found something new for me, the phone is actually working, used odin, and another firmware after the bypass utility, and worked. But the phone screen keeps black. Like no even the samsung logo shows up, everything else works, it boots, recovery and download mode (i know because vibration, and the Google talkback sounds and can be turned on and off). I'm pretty sure is a firmware issue because when i started 7 hour ago, it was working well. Thanks a lot for this thread. Now i need to figure how to fix the BSoD :/
I've done this over +50 times already on other phones at work*
btw sorry, my english ain't that good.*

VID_20210902_204110.mp4

drive.google.com

URL, Video of mobile.

 

[xeronazoblaze]

Thanks a lot for the guide! It worked on my SM-A107M, which went dead after flashing it with Magisk and updating the app. Can't apply any Android updates due to the phone detecting that it was modified but I assume this can be fixed by flashing the stock ROM. Thanks again!.

 

[phoenixmet]

I found something new for me, the phone is actually working, used odin, and another firmware after the bypass utility, and worked. But the phone screen keeps black. Like no even the samsung logo shows up, everything else works, it boots, recovery and download mode (i know because vibration, and the Google talkback sounds and can be turned on and off). I'm pretty sure is a firmware issue because when i started 7 hour ago, it was working well. Thanks a lot for this thread. Now i need to figure how to fix the BSoD :/
I've done this over +50 times already on other phones at work*
btw sorry, my english ain't that good.*

VID_20210902_204110.mp4

drive.google.com

URL, Video of mobile.

Hi can you fixed?

 

[phoenixmet]

wheni click download gives me this error status_sec_img type_mismatch

Hello, were you able to install it??

 

[Shani41]

Hello, were you able to install it??

hey did you get any solution for this?
if yes can you help me to sort is out!
Thanks in advance

 

[Shani41]

How to make a Scatter Firmware for your Galaxy A10s​

REQUIREMENTS​

- Last version of 7Zip ZStandard. Download it from the releases and install: https://github.com/mcmilk/7-Zip-zstd/releases
- A firmware that match with your phone binary. If you dont know, use the last one. You can download it from various sites, but i recommend to use SamFW.com. You need to decompress the firmware to get the 5 files needed.

PROCESS​

1- Create a new folder and place this file in: https://www.androidfilehost.com/?fid=7161016148664790665

2- Now, go where you downloaded the firmware. Right click on the AP File and click "7Zip ZS" option and select "Open Archive" (first option).

3- We will open file by file, and then we will drag the content of each one inside to the folder with the scatter.txt file. Repeat it with AP, BL, CP and CSC Firmware files (HOME_CSC isn't used).
The result will be like this:

https://imgur.com/wcHVfop

3- Now go to "View" tab in the Windows Explorer, and then tick "File Name Extensions".

https://imgur.com/V4FI1Tl

4- Rename the following files:

md1img.img to md1rom.img​

scp.img to tinysys-scp1.bin​

lk.img to lk.bin​

tee.img to trustzone1.bin​

You must change name AND extension.

5- Extract the preloader binary: for this, open the "WMR MTK" folder and execute "WwR_MTK_2_51.exe", then wait for 120 seconds (because it's a free version).
Go to preloader tab, then click "Select File" and open the "Preloader.img" file.

https://imgur.com/w6oNJv6

Then click on "To extract preloader and save as..." and save the file in the folder with the other using the name "preloader_s96116aa1.bin".

https://imgur.com/m2lIeRv

6- Your Scatter Firmware it's done for be flashed on your device. The result will be like this:

https://imgur.com/WGge7xa

Post in the thread any inconveniences if you face, I will try to help you.

i didn't fidn this option
Then click on "To extract preloader and save as..."
plz help me to fix this

 

[Pivato]

Hi, yesterday I bricked my Galaxy A10s by flashing a custom recovery by Odin (The phone doesn't enter in Download or recovery modes, it just does nothing):

Immediately I started looking for how to fix it, and after a lot of research, here is how to:

REQUIREMENTS​

• Windows 10 x64 bit PC with Internet Connection (may work on Win7/8).
• A USB Cable
• Scatter firmware:
  • For SM-A107M Binary5: https://www.androidfilehost.com/?fid=7161016148664790627
  • For SM-A107F Binary8: https://www.androidfilehost.com/?fid=7161016148664790683

PROCESS​

1- Download this file and decompress it using 7Zip or WinRAR. then open the folder: https://www.androidfilehost.com/?fid=7161016148664790681

2- Python3 installation: open the python installer. Mark the "ADD Pyhton 3.9 TO PATH" option: https://i.imgur.com/9hxjD5p.jpg
Then click "Install Now". When finished click close. Open a cmd (write cmd in Windows Start Menu and open it) and paste this comand:

pip install pyusb pyserial json5​

If all its okay, you must see something like this:

https://imgur.com/YdHQgk2

If not, uninstall all versions of python you have installed and reinstall the provided one, remember to check the "Add to PATH".

3- MTK Driver: open the "MediaTek SP Drivers v2.0 signed" folder, then open Android, do a right click over "android_winusb.inf" and click install. Go back and open "CDC" folder. Right click "cdc-acm.inf" and press install. In both cases, it will say "Installation successfully".

4- Decompress the scatter firmware provided at the first of the post. If you wanna make one, because you have another model or binary, see the next post.

5- Prepair SP Flash Tool: open the "SP_Flash_Tool" folder and execute "flash_tool.exe" as Administrator.
Click "Choose" button in the Scatter-Loading file line and search the folder where you decompressed the Scatter Firmware. Open the file "MT6765_Android_scatter.txt". https://i.imgur.com/BLYlaSX.jpg
Make sure the option below "Authentication File" is "Download Only". If not, select it from the list.
Now, go to "Options" > "Option..." and unmark these 3.
Go to connection and put all like the photo:
Done, now we have SP Flash Tool ready.

5- Connect your Galaxy A10s to your computer. Your phone its cycling rebooting itself, entering into preloader mode for 2 seconds, every 10-15 seconds.
Now install "libusb-win32-devel-filter-1.2.6.0.exe" and click finish to open it. Select "Install a device filter" and click next. A list will appears, so wait for your Phone to enter into Preloader. It will appear in the list (as Preloader USB VCOM Port), so rapidly select it and then click "Install". https://i.imgur.com/Kzv3lkD.jpg
If it appears, all is okay, if not, repeat this step. Don't close the program after do this.

6- With this done, open the "bypass_utility-v.1.4.2" folder. In the keyboard, press "Shift" (the key with a up pointed arrow, below enter) and without releasing it, right click inside the folder. In the menú, click "Open Power Shell here".
Now, write this and press enter:

python main.py​

If this command does nothing, try with this variant: py -3 main.py
Now, wait for the phone reboot again in preloader. This time, the script will make the phone keep in the Preloader, and the PowerShell will tell you that an error was ocurred. https://i.imgur.com/ZCsRmtN.jpg
So, open libusb-win32 program from the taskbar and search for "Mediatek USB Port". Select it and press next, to install the device filter for it.

https://imgur.com/ouu6u2c

7- Maximize Power Shell and write this command again:

python main.py

(or py -3 main.py)
NOTE: If PowerShell it's stuck on "waiting for the device" for more than 2 minutes, press Power, vol+, and vol- buttons at the same time for 7 to 15 seconds to force a reboot.

This time, the log will tell you "[2021-08-21 13:28:01.303625] Protection disabled". https://i.imgur.com/2avTTNi.jpg
Plz, don't disconnect the phone.

8- Go back to SP Flash Tool program and click in the "Download" button and it will start to flash your phone. https://i.imgur.com/iknxeUE.jpg

https://imgur.com/huHh7tz

9- When finished, you will see a green tick and your phone will disconnect from the computer. Now, press the power and volume down (-) buttons at the same time, and keep it until you see the Download Mode.

https://imgur.com/Bi4AITN

10- Now, flash the last Firmware for your phone using Odin. Exists a lot of tutorials on Google and YouTube for it, so i will leave you to search one.

11- Done! Your phone its alive again.

Thanks to fromgodd & Dego09 for helping me, without them, this tutorial wasn't possible​

My english isn't perfect. You can tell me any corrections. Thanks in advance.​

Thank's a lot!!! This has saved my wife phone!!!

 

[chitoka]

I've got the same issue, i followed carefully the indications too.
I'm loosing my mind with this

Greetings.

View attachment 5400405

its easy, here is what I did. Uncheck the one that is giving you the mismatch, next do again the steps from pyton code python main.py to disable security and flash the rest. after its complete force restart the phone and it will enter dw mode. flash your a10s stock firmware and your are good to go.

PD. if you get read pit error, extract A10S_LTN_OPEN_PRODUCT600M file from csc file using winrar and choose the pit file flash and you are done.

 

[Edu4ard0ZERO]

Hi! I'm having a similar problem. I tried to implement TWRP recovery on my a10s and since that it isn't working. It is recognizing as a modem im my computer, for some reason. I triend changing the driver for the Mediatek Preloader VCOM COM7 and try your tutorial but didn't make anything different. When i run the powershell on bypass utility it just waits for the device over and over.
My a10s doesn't react to any combination of vol. button and power button and i don't know what to do.
If anyone wants to know the procedure i did to make my a10s dead, i can explain in details what happened.
Thanks for reading!

 

[atv]

Hi, thank you very much for the guide but in my case:

now working even in false.
thank you

 

[yerick1al]

Hi, what are the options that I need to uncheck in options and in connection, there is no photo as explained in the tutorial...Please

Now, go to "Options" > "Option..." and unmark these 3.
Go to connection and put all like the photo:
Done, now we have SP Flash Tool ready.