Just received my Max 2 from Amazon, well boxed, powered up OK on arrival. Have updated the firmware via the download from
www.boox.com to V1.8.3 （20180129）
(As an FYI, if you buy on amazon.co.uk right now there is a promotion option where you not only get the aluminium stand for free, buying with Prime, the discount knocks another £13.20 off the Max price)
Been reading the posts, multiple and various and my issues are pretty similar to everyone else's.
The Security lock issue really HAS to be fixed as neither through the ADB path or the Android settings APK path for password setting stick on the Max. Whilst for some individuals this may not seem an issue, it means that enterprise take up of the Max will be stymied and the potential loss of intellectual property or personal data is unacceptable in this day and age.
Then there is the problem that you can't have any app stay resident after a reboot. So for example, download a lock screen app, to work around the security issue, won't fire up automatically on reboot. Install an app to make it resident, the Max Android implementation over rides it so the kludge for security won't load on boot and it has to be manually started, so.....no effective security
One Note, the application writing latency and stability makes, for me, the use of One Note wholly unusable.
The whole Android experience is badly implemented, the "Settings" page is a perfect example. This is a reasonably well specced Android tablet, no need to cripple it. Make it as plain vanilla an install as practical with the EPD experience front and centre.
Sensors.....At the least this needs to be sufficient so that screen rotation is automatic, GPS would be nice but not essential.
The HDMI out was one of the reasons I bought the Max, it would be equally useful for it to be so that the Max can do HDMI in so it can drive an external monitor. The on-board video chip should be able to handle it and the Max then could become a very effective standby computer, display driver etc.
Remapping of the physical keys should be available. As an example, using many Android apps by default masks the top screen space (with the home button) so the only way to exit the app is the repeatedly press the return key. Have the apps NOT be full screen by default. Also if the app is set to not full screen, if it opens something inside, One Note is an example open a page from inside the app, the new screen is full screen with no way to set it to not be full screen. Having the hardware keys either be manually remappable or context remapped so for example the left "Menu" button becomes the Home button would be useful.
Screen resolution seems out of kilter in some places. The device is a 2200 x 1650 + 207 PPI yet the "Application" screen icons are oversized and look more like you would expect from a 1024 x 768 display. It may be an app issue but I haven't seen the same sort of issue with my Yotaphone 2 which seems to handle resizing somewhat better.
There is so much potential here that is being blocked for no readily apparent reason.