Vibe Z2 Pro (K920) stock ROM improvements and bug fixes

Question

Phone info: Lenovo K920, Android 4.4.2, K920_ROW_S133_141010 I've already posted this message, but, probably, to the wrong forum section. Hello to all I hope that if it is the official Lenovo forum, the respectable developers already read it from time to time & some thoughts about Vibe Z2 Pro stock software improvements and bug fixes will be useful for them. Interface1) "Double tap to wake" feature is, probably, the most requested one.2) There is very long response period between the long pressing "Menu" button and the showing of the earlier executed applications list. Even then Settings > Accessebility > [Touch & hold delay] is set to "Shot". I'd better to cut this delay twice.3) "Clear all" function in the the earlier executed applications list sometimes seems doesn't work properly: I press the button, clearance process indicator is rotating, but the list isn't empty.4) The system font is lengthened by vertical axis & it looks worse then the corresponding font on nexus devices. Lockscreen1) Lockscreen crashes when Poweramp with the default settings is playing a song (Poweramp > Settings > Lock Screen > Enable Android Lock Screen = true). Probably, this is a Poweramp bug, not K920 ROM (The Rocket Player with the same functionality works well), but who knows...2) There will be a good idea to realize option "Disable change lockscreen picture by swype" somewhere in Settings, because such an involuntary change take place regularly. Stock Camera app1) As far as I know, Samsung Galaxy S5 has an HDR option for recording a video. It would be cool to implement this feature (moreover, if I'm not mistaken, K920 has the same camera hardware).2) In professional mode I can drag "Photo camera" icon left and this will result in appearance the five curves of settings (like a Solar system) - just as in Nokia Camera for Nokia Lumia phones. Bute there are two shortages in this (generally very good) idea.2a) In Nokia Camera the "Photo camera" icon is moving left just under the finger while being dragged, while in K920 Camera app "Photo camera" icon is moving only after dragging is finished & the finger is moved away from the screen. Such a behaviour looks a little bit unnatural.2b) In Nokia Camera I can show the single curve for the tuning of a single parameter by pressing a corresponding button on the center of the top side of the screen. The K920 Camera app doesn't have such an ability at all (or I failed to find it).This video illustrates the problem.3) It would be very good to add the next options: disable shutter sound, change photo resolution (5M, 8M, 16M) and aspect ratio (16:9, 4:3).4) The Zoom function in video recording mode works like simple pixelization, not zoom. Neither Lumia 1520, nor HTC One X (my other phones) doesn't zoom in video mode like K920. The two videos - about Lumia 1520 zoom & K920 zoom illustrate the problem. This is the more so strange, that in photo mode K920 zoom is apparently better than the Lumia 1520 one. Sound1) It would be great to realize step-by-step volume increasing for incoming calls. Thank you.

Answer 1

Hi monocats,
Yes, I have expirienced quite the same camera issues as you, but only 5 or 6 times of more than 200 photos, so made little for this issue.
Link to image
Link to image
I'm a newbie in photography, but noticed, that slightest chage in camera position result in disappearing such artefacts as on the photos above. So it can be result of a light sources mutual position and some camera hardware aspects.
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