Executive summary.
Stability issue (probably) related to data corruption. (App and services hang)
Apps suddenly disappears and still missing after factory reset.
Tablet stops booting after few days of normal usage. (stuck with Intel logo right after Android boot animation)
Re-flash always fixes every issue until next instability.
We think there is a data corruption problem behind every issue, possibly caused by BIOS or eMMC Firmware bug or Kernel bug.
Technical information
Tablets' specs are:
9.7" display 4:3 (2048x1536)
SoC Intel Bay Trail Z3736F
2GB DDR3 Samsung
32 GB eMMC storage
3G by Fibocom H350
AP6630 Wi-Fi/BT module
G-sensor Kyonix
8.000 mAh LiPo battery
I attach some logs.
Why happen this issue ? System BIOS problems ?
Thanks for your help.