After Flashing the ROM it can some watermarks like
https://drive.google.com/file/d/1mRI7uTe4qc7UB019fJhlBlRNBjD-fNZ1/view
Here is the fix:
Before you start you should get your IMEI-Numbers, if not they could be deleted and cause problems.
First download the X19_key V08.zip
from
https://mega.nz/#!VdMnHaTY!xj8KZD_V6YKWmel22wxf09AmZbDJ3wj-tY21hJeofjA
Then download the SN Write Tool
from
https://androidmtk.com/download-sn-write-tool
hint: the newest version is on the end of the list (scroll down).
Extract both zip files.
Open the instructions in the google_key.docx
If you don’t understand Chinese, it won’t be very helpful.
But with the instructions from
https://androidmtk.com/use-sn-write-tool
it could be more clear.
Start the SN_Writer.exe
Activate => Key Files => Attestation Key.
Select the path from the 9021C_CUBOT_X19_PP_.bin
X19_key V08 => google_key => X19 google_key
Now, Click on Start Button.
Now, Under the Scan Data write the IMEI_1 and IMEI_2, and click on OK button.
Now, Power off your Device and Connect the device to the Computer using the USB Cable.
Once, IMEI and Google Key writing is finished you will be able to see the Green Pass Message.
Hope that helps, best regards
Christopher
https://drive.google.com/file/d/1mRI7uTe4qc7UB019fJhlBlRNBjD-fNZ1/view
Here is the fix:
Before you start you should get your IMEI-Numbers, if not they could be deleted and cause problems.
First download the X19_key V08.zip
from
https://mega.nz/#!VdMnHaTY!xj8KZD_V6YKWmel22wxf09AmZbDJ3wj-tY21hJeofjA
Then download the SN Write Tool
from
https://androidmtk.com/download-sn-write-tool
hint: the newest version is on the end of the list (scroll down).
Extract both zip files.
Open the instructions in the google_key.docx
If you don’t understand Chinese, it won’t be very helpful.
But with the instructions from
https://androidmtk.com/use-sn-write-tool
it could be more clear.
Start the SN_Writer.exe
Activate => Key Files => Attestation Key.
Select the path from the 9021C_CUBOT_X19_PP_.bin
X19_key V08 => google_key => X19 google_key
Now, Click on Start Button.
Now, Under the Scan Data write the IMEI_1 and IMEI_2, and click on OK button.
Now, Power off your Device and Connect the device to the Computer using the USB Cable.
Once, IMEI and Google Key writing is finished you will be able to see the Green Pass Message.
Hope that helps, best regards
Christopher