Vic,
Yes, you are correct - the ‘Install Complete’ message comes up within a few seconds of you pressing the button to start ‘Step 3’, but clicking ‘OK’ to acknowledge the message is just the start of the process.
Although it looks like the PAW is running normally, it’s actually installing and reconfiguring the software prior to rebooting. It first has to save all your previous Configuration Settings, Profiles and Licence details, then actually install and configure the new firmware, then reconfigure and reinstate all of your settings and then it has to reboot. That can all take a significant period of time (several minutes at the very least). If you have interrupted it in any way during that process you may have broken the sequence.
That doesn’t of course mean there isn’t a fault, though I’m not aware of any other reports of failures. Although we took great care to test the Updater extensively prior to release by carrying out multiple updates using a broad range of Android devices and versions (at least one of which I believe was a Lenovo Tablet, though I can’t say which model) to repeatedly update different PAW models (Mk1 & Mk2 Classics, Rosettas and Development Unit’s) from and to a broad range of Public Release and Beta software versions with a very high degree of success, we were of course unable to test on every make or model of Android device, so it may be that there is an issue. What are the specific models of your phone and tablet, and what versions of android are your devices running?
Can you try going through the process again on each device with the PAW connected by HDMI to a monitor or TV screen and let us know what happens.
Regards
Peter