Other information of interest:
Relevant information can be found on the servers of the following links:
https://kiwi.handytravel.tech/case/2799/?from_plan=170
https://13.251.183.33/case/2800/hist...text_version=1
At the following link you can find a ROM for the InFocus VZH (Handy T1):
http://files.phd.handy.travel/roms/V..._7.3.6_PHD.zip
The installation does not work neither by ADB Sideload nor by Fastboot / Download. Maybe through the QFIL program yes.
To access the phone's recovery, the VOL + and Power buttons must be pressed at the same time (with the cable plugged into the mobile and the power). Once it shows us the "No Command" screen, we press the VOL + and Power combination again so that the recovery appears (sometimes it is difficult to access, it is a matter of trying several times by holding down the buttons).
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In case someone is encouraged to uninstall applications by ADB:
Handy applications are owned by Tink Labs. So the name of the application folders starts with "com.tinklabs". For example, "com.tinklabs.handy.setup" (but this application cannot be removed because it has the device administrator permission blocked).