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I believe the answer will turn to be encryption support. Snapdragon 800/801 doesn't have instructions for AES operations acceleration (the equivalent of AES-NI

I believe the answer will turn to be encryption support. Snapdragon 800/801 doesn't have instructions for AES operations acceleration (the equivalent of AES-NI on Intel processors) and Google seems to want to make encryption a standard feature of Android.

tadfisher 10y ago
From the 6.0 CTS: > For device implementations supporting full-disk encryption and with Advanced Encryption Standard (AES) crypto performance above 50MiB/sec, the full-disk encryption MUST be enabled by default at the time the user has completed the out-of-box setup experience. If a device implementation is already launched on an earlier Android version with full-disk encryption disabled by default, such a device cannot meet the requirement through a system software update and thus MAY be exempted. This doesn't refute your point, just illustrating the previous requirement for FDE. Curious to see the 7.0 CTS standards when they're published.
- e12e 10y ago
  Fwiw my z3+ runs fine with fde enabled (android 6.0.1 stock Sony rom).
tdkl 10y ago
Might be, there have been some speculations already[1] and it makes sense. But still come on, I bet most of the users don't encrypt their existing devices. And if Google is trying to do this in the name of security, they've just excluded a huge pile of devices newest Android security fixes. Planned obsolescence at its best, specially since 810 was overheating, battery draining shit show and 820 is only slightly improved. 800/801 were excellent. [1] http://www.androidauthority.com/android-7-0-snapdragon-800-801-712930/ http://www.androidauthority.com/android-7-0-snapdragon-800-8...
- andmarios 10y ago
  I own both a 801 device (LG G3) and a 810 (Sony Z4). The 801 runs way hotter than 810 with frequent throttling. There are times I have to stop playing a game because my fingers are burning! At XDA you will even find hardware mods for cooling the CPU. :) Unfortunately this is the only way for Android team to enforce good practices to most manufacturers. If not, you would still see new devices coming out without usable encryption support. The older handsets will still be protected by Play Services as long as they stay mostly in Play Store and don't install random apks from the net. Yes, planned obsolescence is an issue, especially for countries or groups with lower income. On the other hand phones get such an abuse through daily use that few of them last for 3 or more years.
  - tdkl 10y ago
    Might be a G3 thing, that device/GPU is really under powered for the display resolution (1440 x 2560) it needs to render.
    - mappu 10y ago
      It's possible to reduce the resolution to 1080p, for a 30-80% performance improvement. http://www.phonearena.com/news/We-changed-the-LG-G3s-display-resolution-to-1080p---we-got-superb-performance-and-negligible-battery-life-increases_id65982 http://www.phonearena.com/news/We-changed-the-LG-G3s-display...
      - tdkl 10y ago
        This was something I did on my cousins G3, but rooting isn't exactly in mainstream users domain.

tadfisher 10y ago

From the 6.0 CTS: > For device implementations supporting full-disk encryption and with Advanced Encryption Standard (AES) crypto performance above 50MiB/sec, the full-disk encryption MUST be enabled by default at the time the user has completed the out-of-box setup experience. If a device implementation is already launched on an earlier Android version with full-disk encryption disabled by default, such a device cannot meet the requirement through a system software update and thus MAY be exempted. This doesn't refute your point, just illustrating the previous requirement for FDE. Curious to see the 7.0 CTS standards when they're published.

e12e 10y ago
Fwiw my z3+ runs fine with fde enabled (android 6.0.1 stock Sony rom).

tdkl 10y ago

Might be, there have been some speculations already[1] and it makes sense. But still come on, I bet most of the users don't encrypt their existing devices. And if Google is trying to do this in the name of security, they've just excluded a huge pile of devices newest Android security fixes. Planned obsolescence at its best, specially since 810 was overheating, battery draining shit show and 820 is only slightly improved. 800/801 were excellent. [1] http://www.androidauthority.com/android-7-0-snapdragon-800-801-712930/ http://www.androidauthority.com/android-7-0-snapdragon-800-8...

andmarios 10y ago
I own both a 801 device (LG G3) and a 810 (Sony Z4). The 801 runs way hotter than 810 with frequent throttling. There are times I have to stop playing a game because my fingers are burning! At XDA you will even find hardware mods for cooling the CPU. :) Unfortunately this is the only way for Android team to enforce good practices to most manufacturers. If not, you would still see new devices coming out without usable encryption support. The older handsets will still be protected by Play Services as long as they stay mostly in Play Store and don't install random apks from the net. Yes, planned obsolescence is an issue, especially for countries or groups with lower income. On the other hand phones get such an abuse through daily use that few of them last for 3 or more years.
- tdkl 10y ago
  Might be a G3 thing, that device/GPU is really under powered for the display resolution (1440 x 2560) it needs to render.
  - mappu 10y ago
    It's possible to reduce the resolution to 1080p, for a 30-80% performance improvement. http://www.phonearena.com/news/We-changed-the-LG-G3s-display-resolution-to-1080p---we-got-superb-performance-and-negligible-battery-life-increases_id65982 http://www.phonearena.com/news/We-changed-the-LG-G3s-display...
    - tdkl 10y ago
      This was something I did on my cousins G3, but rooting isn't exactly in mainstream users domain.