UMIDIGI A7-A11, BISON and Power 5: Repair IMEIs, MEID and Google certificate

bencebacsi

UMIDIGI A7, A7S, A7 Pro, A9, A9 Pro, A11, A11 Pro Max, A11 Tab, BISON, BISON Pro, BISON X10, BISON X10 Pro, BISON GT2 (Pro) 5G and Power 5

Repair IMEIs, MEID, TEE data and Google certificate

after full flash format or flashing an incompatible or badly assembled custom ROM

Updated: 2022, June 1.

This guide is about how to repair your lost IMEI and MEID numbers and Google certificate on UMIDIGI A7, A7S, A7 Pro, A9, A9 Pro, A11, A11 Pro Max, A11 Tab, BISON, BISON Pro, BISON X10, BISON X10 Pro or Power 5 with a special version of MediaTek SN Writer tool, using a PC running Windows 10/11 OS with administrator rights.

Please note: By formatting the flash chip of your UMIDIGI device or installing a non-factory system software (''custom ROM'') on it, you instantly lose both your manufacturer's and seller's warranty. Therefore, the solution provided here does not offer further support, regardless of you are able to successfully use it or not.

What you need:

• A Windows™ computer with working internet connection
• Modify Windows hosts settings
• VCOM drivers: Windows 10 and 11 can automatically install it. Please make sure that your Windows is logged in with administrator rights and your computer has a working internet connection when first time connecting your phone
• SN Writer TEE Tool provided for your specific phone model
  
  

Download SN Writer TEE Tool

• A7 (global): SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7.rar
• A7.E (eea): SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7_eea.rar
• A7S (global): SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7S.rar
• A7S (eea): SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7S_eea.rar
• A7 Pro: SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7Pro.rar
• A9: SN_Writer_Tool_exe_v1.2020.0.0-4362_A9.rar
• A9 Pro 2020/2021 4/64GB: SNWriter_1924-4.2.1-up-1.2.1-vturkey_A9Pro64.rar
• A9 Pro 2020/2021 6/128GB: SN_Writer_Tool_exe_v1.2020.0.0-4362_A9Pro128.rar
• A9 Pro 2021 8/128GB: SN_Writer_Tool_exe_v1.2020.0.0-4362_A9Pro2021_8GB.rar
• A11: SN_Writer_Tool_exe_v1.2020.0.0-4362_A11.rar
• A11 Pro Max: SN_Writer_Tool_exe_v1.2020.0.0-4362_A11_Pro_Max.rar
• A11 Tab: SN_Writer_Tool_exe_v1.2020.0.0-4362_A11_Tab.rar
• BISON 2020: SNWriter_1924-4.2.1-up-1.2.1-vturkey_BISON.rar
• BISON 2021 6GB: SN_Writer_Tool_exe_v1.2020.0.0-4362_BISON2021_6GB.rar
• BISON 2021 8GB: SN_Writer_Tool_exe_v1.2020.0.0-4362_BISON2021_8GB.rar
• BISON Pro: SN_Writer_Tool_exe_v1.2020.0.0-4362_BISON_Pro.rar
• BISON X10: SN_Writer_Tool_exe_v1.2020.0.0-4362_BISON_X10.rar
• BISON X10 Pro: SN_Writer_Tool_exe_v1.2020.0.0-4362_BISON_X10_Pro.rar
• BISON GT2 5G and GT2 Pro 5G: SN_Writer_Tool_exe_v1.2020.0.0-4362_BISON_GT2_5G.rar
• Power 5: SN_Writer_Tool_exe_v1.2020.0.0-4362_Power5.rar
  

Any models that you can't find in the list above, are not compatible with this tool.


Let's get started step by step
(the driver installation process will be skipped in this tutorial since a Windows 10 PC connected to the internet can automatically install the compatible drivers)
You have to power off your phone before Step 8.!

• Brows for the C:\Windows\System32\drivers\etc\hosts file and open it in a text editor.
  Add 116.62.230.138 pl.trustkernel.com to the end of the list of hosts, then save the hosts file. If you are not allowed to save it locally, first save it in an other location, then copy the new one by overwriting the original file.
  
  
  
  
  
• Extract and open the folder of SNWriter_..._xxxxx (select the version matching with your phone model and version), then run the application by double clicking SN Writer.exe.
  
  
  
• Click the System Config button, then select all items that you can see checkmarked below.
  MEID is present only in selected models (check the phone box label), so just uncheck if you don't need it.)
  
  You may uncheck the IMEI and MEID Options and keep only one item (as your choice) selected in the Write Options if your only target is to recover your Google certificate and TEE data.
  
  Optional:
  If you have mobile network connection issues, uncheck the Load ... from DUT options in the DataBase File section, then load the MD1_DB (MDDB_InfoCustomAppSrcP_xxx) and AP_DB (APDB_xxx) files from the ROM package that you currently have installed on your phone.
  
  
  
• Click the Save button.
  
  
  
• Enable AutoGen as shown on the picture below, then select the same items you selected on the System Config page except IMEI and MEID, since you need to enter your original IMEIs and MEID (if present) manually. Click OK. BT and Wifi (MAC) addresses will be auto generated.
  
  
  
  
• Click the Start button.
  
  
  
• In the pop-up window, enter your original(!) IMEI_1, IMEI_2 and MEID (if present) numbers, then click OK.
  You can enter only the first 14 digits of your MEID number, the last one will be autogenerated.
  
  
  
  
• Connect your (powered off) phone to USB, without pressing any button.
  
  
  
• The writing process will start automatically while your phone is switching into META mode.
  
  
  Troubleshooting: If the process gets stuck at this point what the screenshot shows above (Start searching kernel...), disconnect the USB cable for a few seconds, then reconnect it and the process will continue. If the flashing process still fails, start again the flashing but leave your phone connected. Press and hold the power button until the flashing process starts, then release it.
  
  
  
• After the writing process finished, you get the following screen (click Cancel), reporting the successful operation, and your phone automatically switches into charging mode.
  
  

Now you are DONE and may close SN Writer and power on your phone.
Congratulations!


In case of a bad connection, not the compatible application is used, not properly installed drivers or if something other trouble happens, you get the following screen.

Check your USB cable, use another USB port, when the phone switched to META mode, check your Windows device manager to see if a new serial port is correctly installed, check whether you downloaded the application compatible with your phone model and version.

After rebooting your phone, check the new IMEI and MEID numbers in Settings → About phone.


All the screenshots are captured and the guide is written by me for UMIDIGI users only. Unauthorized copy of this content is prohibited. Please let me know if you find errors or missing info.
Thank you, bencebacsi

Merf_tj

Umidigi Bison 2020 error, help

UMIDIGI5

rodraifil replied at 2021-12-10 05:57
@bencebacsi can you help me please?

NO 4G NO LTE . JUST 3G AND 2G

Chucksmmadu

Well, I used this to fix the red text issue. https://www.mediafire.com/file/y ... y+solution.rar/file I created an account just to reply this message

bloomingtherapy

it marks an error when I want to open the program...I have tried other versions and if you open them but I cannot correct the imei...
the problem appears in this version SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7Pro
I found the solution in this link  https://www.bloomingtherapies.ca/

GM73

bencebacsi replied at 2020-11-14 10:25
Hi,

It's not about the lack of licenses but the expired keybox_uuid in the kph_env.ini file. The k ...

Has it expired again?  Number of failed attempts but come to the conclusion the fault lies with the kph_env.ini file, again.  Any chance of an update?  Cheers!

moritas

excellent contribution, it really works
       Thank you

moritas

it marks an error when I want to open the program...I have tried other versions and if you open them but I cannot correct the imei...
the problem appears in this version SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7Pro
I found the solution in this link  
https://www.ayudaroot.com/software/solucionar-error-falta-mfc100-dll/

earlurl2

Good to know we got this thing. I was planning for a custom rom, incase it fails, I can use this. Thanks for this, admin!

dfery

Hello bencebacsi!
I have a problem. Modified the host file, save it the correct format and place, the settings is the same as your photos, and the IMEI's the originals. I did exactly what you wrote, but the process has failed with this error (seen the picture).  In the system the one of the two error messages ("Unwritten tee key" and "Unwritten google key") the "unwritten tee key" has disappeared, but the other one (google key) is shown yet. I tried to add the database files (MD1 and AP) from the image (UMIDIGI_A7_PRO_EEA_V3-0_20200821 and the earier UMIDIGI_A7_PRO_EEA_V2-1_20200801), but the problem is the same Any idea?

nike_bytom

Same problem here it looks like Umidigi run out of the licences Can you please fix it so i can fix my phone

1. [11 13 09:46:13][INFO]<__kpha_init>: KPH: Begin. 4210
   
2. [11 13 09:46:13][INFO]<__kpha_init>: Load Config from "C:\Users\ODB2\Desktop\A7\SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7Pro\tee_stuff\kph_in\kph_env.ini" OK.
   
3. [11 13 09:46:13][INFO]<kpha_detect_server_mode>: version: 3.2.0
   
4. [11 13 09:46:13][INFO]<__kpha_init>: META Version: 3
   
5. [11 13 09:46:13][INFO]<get_cert_name>: certname: UMIDIGI_A7 Pro_mt6763.dat
   
6. [11 13 09:46:13][WARN]<local_read>: fopen(C:\Users\ODB2\Desktop\A7\SNWriter_1924-4.2.1-up-1.2.1-vturkey_A7Pro\tee_stuff\kph_in\UMIDIGI_A7 Pro_mt6763.dat) failed: No such file or directory
   
7. [11 13 09:46:13][WARN]<__kpha_init>: UMIDIGI_A7 Pro_mt6763.dat not exist, certname_len : 25
   
8. [11 13 09:46:14][INFO]<__kpha_init>: KPH: DEVICE [SN: <del> CHIPID: <del>] start
   
9. [11 13 09:46:14][INFO]<__kpha_init>: __kpha_init device_status version 2 >= 2, use truststore API to get truststore type
   
10. [11 13 09:46:14][INFO]<__kpha_init>: TRUSTSTORE_TYPE: 4 TRUSTSTORE_status: 1
    
11. [11 13 09:46:14][INFO]<__kpha_init>: CFG already imported. Done
    
12. [11 13 09:46:14][INFO]<__kpha_init>: Export Device Info. Done
    
13. [11 13 09:46:15][INFO]<__kpha_init>: Export Key<0>. Done
    
14. [11 13 09:46:15][INFO]<__kpha_init>: Read Output. Done
    
15. [11 13 09:46:15][NOTICE]<__kpha_init>: KPH: DEVICE [SN: <del> CHIPID: <del>] Complete.
    
16. [11 13 09:46:15][INFO]<__kpha_init>: Program Secondary certificate.
    
17. [11 13 09:46:16][ERR]<trustkernel::Uploader::upload>: Upload device failed with -2(pull failed,credit used up)
    
18. [11 13 09:46:16][ERR]<trustkernel::VTurkeyLicenser::issueSecondaryLicense>: Upload failed with -1
    
19. 
    
20. [11 13 09:46:16][ERR]<__kpha_init>: Device production processing failed with -19
    
21. [11 13 09:46:16][ERR]<KPHA_Init2>: __kpha_init failed with kr = -19

Copy the Code

bencebacsi

nike_bytom replied at 2020-11-13 18:01
Edited by nike_bytom at 2020-11-13 18:02  

Same problem here it looks like Umidigi run out of the  ...

Hi,

It's not about the lack of licenses but the expired keybox_uuid in the kph_env.ini file. The kph_env.ini file is going to be updated next week. I'll add the update info to this thread when it's done. Please be patient until.
Regards, Ben

Ricas251

the MEID code has 15 digits and I can't put it in the tool which removed the error message but it doesn't let the phone work outside the wifi network. Does anyone know how to put all the necessary digits?

bencebacsi

Ricas251 replied at 2020-12-14 03:48
the MEID code has 15 digits and I can't put it in the tool which removed the error message but it do ...

Just ignore the last digit, it will be auto generated. You need the MEID only on CDMA networks like Verizon and Sprint in the USA.

sirkev

I did a full flash on my umidigi A7 pro (it was totally accidental) I was able to follow this tutorial and it worked for me ... there's only one problem now ...my serial number is reading 0123456789ABCDEF ...how do I solve this?