I am working with a Telpo T20 terminal. Recently, I attempted to configure my own application to run in Kiosk Mode and executed the following ADB commands:
pm uninstall --user 0 com.google.android.gms
pm uninstall --user 0 com.android.vending
pm uninstall --user 0 com.android.settings
adb shell dpm set-device-owner com.awesomeproject/.DeviceAdminReceiverImpl
After running these commands, I rebooted the device, but it can no longer boot properly. The screen shows the bootanimation.zip, and then the device gets stuck. It is not recognized by ADB or Fastboot, and there is no access to the system.
I understand that the issue is likely caused by removing system apps essential for the boot process.
Could you please help with the following:
How can I manually or physically put the device into Fastboot or EDL (Emergency Download Mode)?
Is there any information about test points for forcing EDL mode on the T20 model?
Can you provide the appropriate prog_emmc_firehose_*.mbn file for restoring the device using QFIL or another tool?