| Basic | Spec |
|---|---|
| CPU | 2 x Kryo 2.2Ghz + 2 x Kryo-LP 1.6Ghz |
| Chipset | Qualcomm Snapdragon 820 (MSM8996) |
| GPU | Adreno 530 |
| ROM | 32GB |
| RAM | 3GB |
| Android | 6.0.1->7.0->8.0.0 |
| Kernel | 3.18.20->3.18.31->3.18.71 |
| Battery | 3000mAh |
| Display | 1920x1080pixels 5.3inches IGZO |
| Rear Camera | 22.60MP |
| Front Camera | 5MP |
| Carrier | Japan-au/SoftBank China-Open |
Way to write own built recovery image
Via Exp
In S5290 version,bootloader can be unlocked by modify devinfo partition 's flag.but this device don't have any fastboot and qdloader,so you must use exp(such as dirtycow,CVE-2019-2215 and so on)to write your own built recovery image