[Android Q&A, Help & Troubleshooting] ethosgr:
Hi there fellas. I recently bought a 7" Chinese branded tablet (TABLET INNOVATOR 7DTB41) for 50€. The tablet has some good specs for its money (see at the end of my post). It comes with a 5.1.1 lollipop

phone

ROM full of bloataware. First boot and the device was noticeably slow at every task. I proceed rooting it with kingroot and installed a sys app uninstaller to uninstall all the bloataware. There was the point I understand the ROM was a phone ROM because inside there were apps like Phone, SMS, Call history and so on. Anyway, after the cleanup the device was running significally faster, but still there are lag spikes.. What I want the experts here to ask is, if I can port a custom 4.4.x ROM ( like CM ) to get the best performance.

Specs:

<<< System >>>

Manufacturer: rockchip

Model: 7DTB41

Brand: rockchip

Board: rk30sdk

Device: rk312x

Hardware: rk30board

Platform: rk312x

Product: rk312x

Serial: FNM8******

Installed RAM: 1 GB

Total Memory: 998 MB

Available Memory: 278 MB

Internal Storage Total Space: 12.87 GB

Internal Storage Free Space: 9602 MB

Device Features: android.hardware.audio.low_latency

android.hardware.audio.output

android.hardware.bluetooth

android.hardware.bluetooth_le

android.hardware.camera

android.hardware.camera.any

android.hardware.camera.autofocus

android.hardware.camera.flash

android.hardware.camera.front

android.hardware.ethernet

android.hardware.faketouch

android.hardware.location

android.hardware.location.gps

android.hardware.location.network

android.hardware.microphone

android.hardware.nfc

android.hardware.nfc.hce

android.hardware.screen.landscape

android.hardware.screen.portrait

android.hardware.sensor.accelerometer

android.hardware.sensor.barometer

android.hardware.sensor.compass

android.hardware.sensor.gyroscope

android.hardware.sensor.light

android.hardware.sensor.stepcounter

android.hardware.sensor.stepdetector

android.hardware.touchscreen

android.hardware.touchscreen.multitouch

android.hardware.touchscreen.multitouch.distinct

android.hardware.touchscreen.multitouch.jazzhand

android.hardware.usb.accessory

android.hardware.usb.host

android.hardware.wifi

android.hardware.wifi.direct

android.software.app_widgets

android.software.backup

android.software.device_admin

android.software.home_screen

android.software.input_methods

android.software.live_wallpaper

android.software.managed_users

android.software.pppoe

android.software.print

android.software.voice_recognizers

android.software.webview

<<< CPU >>>

SoC Model: RockChip RK3126

Core Architecture: 4x ARM Cortex-A7 @ 1200 MHz

Manufacturing Process: 40 nm

Instruction Set: 32-bit ARMv7

CPU Revision: r0p5

CPU Cores: 4

CPU Clock Range: 216 - 1200 MHz

Core 1 Clock: 1008 MHz

Core 2 Clock: 1008 MHz

Core 3 Clock: 1008 MHz

Core 4 Clock: 1008 MHz

CPU Utilization: 41 %

Scaling Governor: interactive

Supported ABIs: armeabi-v7a, armeabi

Supported 32-bit ABIs: armeabi-v7a, armeabi

AES: Not Supported

NEON: Supported

SHA1: Not Supported

SHA2: Not Supported

<<< Display >>>

Screen Resolution: 600 × 1024

xdpi / ydpi: 160 / 160 dpi

GPU Vendor: ARM

GPU Renderer: Mali-400 MP2

GPU Cores: 2

Refresh Rate: 77 Hz

Default Orientation: Landscape

OpenGL ES Version: 2.0

GPU Version: OpenGL ES 2.0

OpenGL ES Extensions: GL_EXT_debug_marker

GL_OES_texture_npot

GL_OES_vertex_array_object

GL_OES_compressed_ETC1_RGB8_texture

GL_EXT_compressed_ETC1_RGB8_sub_texture

GL_OES_standard_derivatives

GL_OES_EGL_image

GL_OES_depth24

GL_ARM_rgba8

GL_ARM_mali_shader_binary

GL_OES_depth_texture

GL_OES_packed_depth_stencil

GL_EXT_texture_format_BGRA8888

GL_OES_vertex_half_float

GL_EXT_blend_minmax

GL_OES_EGL_image_external

GL_OES_EGL_sync

GL_OES_rgb8_rgba8

GL_EXT_multisampled_render_to_texture

GL_EXT_discard_framebuffer

GL_OES_get_program_binary

GL_ARM_mali_program_binary

GL_EXT_shader_texture_lod

GL_EXT_robustness

GL_OES_depth_texture_cube_map

GL_KHR_debug

GL_ARM_shader_framebuffer_fetch

GL_ARM_shader_framebuffer_fetch_depth_stencil

<<< Network >>>

<< Telephony >>

Phone Type: None

<< Wi-Fi >>

State: Enabled

SSID: *****

BSSID: *****

Hidden SSID: No

MAC Address: *****

Signal Strength: -44 dBm (Excellent)

Link Speed: 72 Mbps

Frequency: 2462 MHz

Network ID: 1

Gateway: 192.168.43.1

DNS1: 192.168.43.1

DHCP Lease Duration: 1 hour

5 GHz Band: Not Supported

Wi-Fi Direct: Supported

<<< Battery >>>

Power Source: A/C Charger

Level: 32 %

Status: Charging

Health: Good

Technology: Li-ion

Voltage: 3.860 V

Charge Rate: 421 mA

Capacity (Reported by Android): 6700 mAh

<<< Android >>>

Android Version: 5.1.1 (Lollipop)

API Level: 22

Rooted Device: Yes

Android ID: 2af373199931bbef

Build ID: 7DTB41_20160711

Codename: REL

Fingerprint: rockchip/rk312x/rk312x:5.1.1/LMY47V/sss07301514:userdebug/test-keys

ID: LMY47V

Incremental: eng.sss.20160730.151241

Java Runtime Version: Android Runtime 0.9

Java VM Version: ART 2.1.0

Java VM Heap Size: 48 MB

Kernel Architecture: armv7l

Kernel Version: 3.10.0 (sss@sss-kylin) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #25 SMP PREEMPT Sat Jul 30 15:07:39 CST 2016

Tags: test-keys

Type: userdebug

Google Play Services Version: 9.4.52 (230-127739847)

OpenSSL Version: OpenSSL 1.0.1j 15 Oct 2014

ZLib Version: 1.2.8

ICU CLDR Version: 25.0

ICU Library Version: 53.1.0.1

ICU Unicode Version: 6.3

Android Language: English (United States)

Configured Time Zone: Eastern European Summer Time (UTC+03:00)

UpTime: 00:48:01

<<< Devices >>>

<< Rear-Facing Camera >>

Resolution: 1.9 MP (1600 × 1200)

Focal Length: 35.0 mm

Focus Modes: fixed

Video Snapshot: Supported

Video Stabilization: Not Supported

Zoom: Supported

Smooth Zoom: Not Supported

Auto Exposure Locking: Supported

Auto White Balance Locking: Not Supported

<< Front-Facing Camera >>

Resolution: 0.3 MP (640 × 480)

Focal Length: 35.0 mm

Focus Modes: fixed

Video Snapshot: Supported

Video Stabilization: Not Supported

Zoom: Supported

Smooth Zoom: Not Supported

Auto Exposure Locking: Supported

Auto White Balance Locking: Not Supported

<< USB Device - Linux 3.10.0 ehci_hcd EHCI Host Controller >>

Manufacturer: Linux 3.10.0 ehci_hcd

Product: EHCI Host Controller

Serial: 101c0000.usb

Device ID: 1D6B-0002

Device Class: 09 / 00 (Full-Speed Hub)

Device Protocol: 00

Revision: 0310

Supported USB Version: 2.00

Current Speed: 480 Mbps

<< USB Device - Linux 3.10.0 ohci_hcd RK OHCI Host Controller >>

Manufacturer: Linux 3.10.0 ohci_hcd

Product: RK OHCI Host Controller

Serial: 101e0000.usb

Device ID: 1D6B-0001

Device Class: 09 / 00 (Full-Speed Hub)

Device Protocol: 00

Revision: 0310

Supported USB Version: 1.10

Current Speed: 12 Mbps

<< USB Device - Linux 3.10.0 dwc_otg_hcd DWC OTG Controller >>

Manufacturer: Linux 3.10.0 dwc_otg_hcd

Product: DWC OTG Controller

Serial: 10180000.usb

Device ID: 1D6B-0002

Device Class: 09 / 00 (Hi-Speed Hub with single TT)

Device Protocol: 01

Revision: 0310

Supported USB Version: 2.00

Current Speed: 480 Mbps

No OpenCL devices found.

No CUDA devices found.

No Vulkan devices found.

No PCI devices found.

<<< Thermal >>>

No thermal sensors found.

<<< Sensors >>>

Gravity sensor:

Compass Magnetic field sensor:

Orientation Sensor:

Gyroscope sensor:

Proximity sensor: 9.0 cm

Light sensor:

Pressure sensor:

Temperature sensor:

Rotation Vector Sensor:

Gravity Sensor:

Linear Acceleration Sensor:

<<< Apps >>>

AIDA64: com.finalwire.aida64(v1.40)

BSPlayer FREE: com.bsplayer.bspandroid.free(v1.27.190)

BusyBox Free: stericson.busybox(v42)

ES File Explorer: com.estrongs.android.pop(v4.1.2.4)

SuperSU: eu.chainfire.supersu(v2.76)

System App Safe Remover: com.jumobile.manager.systemapp(v3.6.2019)

<<< Codecs >>>

OMX.google.mp3.decoder: audio/mpeg

OMX.google.amrnb.decoder: audio/3gpp

OMX.google.amrwb.decoder: audio/amr-wb

OMX.google.aac.decoder: audio/mp4a-latm

OMX.google.g711.alaw.decoder: audio/g711-alaw

OMX.google.g711.mlaw.decoder: audio/g711-mlaw

OMX.google.vorbis.decoder: audio/vorbis

OMX.google.opus.decoder: audio/opus

OMX.google.raw.decoder: audio/raw

OMX.google.aac.encoder: audio/mp4a-latm

OMX.google.amrnb.encoder: audio/3gpp

OMX.google.amrwb.encoder: audio/amr-wb

OMX.google.flac.encoder: audio/flac

OMX.rk.video_decoder.avc: video/avc

OMX.rk.video_decoder.m2v: video/mpeg2

OMX.rk.video_decoder.vp8: video/x-vnd.on2.vp8

OMX.google.vp9.decoder: video/x-vnd.on2.vp9

OMX.rk.video_decoder.h263: video/3gpp

OMX.rk.video_decoder.m4v: video/mp4v-es

OMX.rk.video_decoder.flv1: video/flv

OMX.rk.video_decoder.vc1: video/vc1

OMX.rk.video_decoder.mjpeg: video/mjpeg

OMX.rk.video_decoder.hevc: video/hevc

OMX.rk.video_encoder.avc: video/avc

OMX.google.h264.decoder: video/avc

OMX.google.vp9.decoder: video/x-vnd.on2.vp9

OMX.google.h263.encoder: video/3gpp

OMX.google.mpeg4.encoder: video/mp4v-es

OMX.google.vp8.encoder: video/x-vnd.on2.vp8

<<< Directories >>>

Data: /data

Root: /system

Java Home: /system

Download/Cache Content: /cache

<< External Storage >>

Primary External Storage: /storage/emulated/0

External Files #1: /storage/emulated/0/Android/data/com.finalwire.aida64/files

DCIM: /storage/emulated/0/DCIM

Downloads: /storage/emulated/0/Download

Notifications: /storage/emulated/0/Notifications

Ringtones: /storage/emulated/0/Ringtones

<< Mount Points >>

/: Device: rootfs

File System: rootfs

Read-Only

/dev: Device: tmpfs

File System: tmpfs

Read-Write

/dev/pts: Device: devpts

File System: devpts

Read-Write

/dev/memcg: Device: none

File System: cgroup

Read-Write

/dev/cpuctl: Device: none

File System: cgroup

Read-Write

/dev/usb-ffs/adb: Device: adb

File System: functionfs

Read-Write

/proc: Device: proc

File System: proc

Read-Write

/sys: Device: sysfs

File System: sysfs

Read-Write

/sys/fs/selinux: Device: selinuxfs

File System: selinuxfs

Read-Write

/sys/fs/cgroup: Device: none

File System: tmpfs

Read-Write

/sys/fs/cgroup/memory: Device: none

File System: cgroup

Read-Write

/sys/kernel/debug: Device: /sys/kernel/debug

File System: debugfs

Read-Write

/acct: Device: none

File System: cgroup

Read-Write

/mnt/asec: Device: tmpfs

File System: tmpfs

Read-Write

/mnt/obb: Device: tmpfs

File System: tmpfs

Read-Write

/system: Device: /dev/block/platform/1021c000.rksdmmc/by-name/system

File System: ext4

Read-Only

/cache: Device: /dev/block/platform/1021c000.rksdmmc/by-name/cache

File System: ext4

Read-Write

/metadata: Device: /dev/block/platform/1021c000.rksdmmc/by-name/metadata

File System: ext4

Read-Write

/data: Device: /dev/block/platform/1021c000.rksdmmc/by-name/userdata

File System: ext4

Read-Write

/mnt/shell/emulated: Device: /dev/fuse

File System: fuse

Read-Write

/storage/emulated: Device: tmpfs

File System: tmpfs

Read-Write

/mnt/external_sd: Device: /dev/block/vold/179:33

File System: vfat

Read-Write

/storage/emulated/0: Device: /dev/fuse

File System: fuse

Read-Write

/storage/emulated/legacy: Device: /dev/fuse

File System: fuse

Read-Write

<<< System Files >>>

Buddy Info: /proc/buddyinfo

Build Properties: /system/build.prop

Character & Block Devices: /proc/devices

Command Line: /proc/cmdline

CPU Information: /proc/cpuinfo

Default Properties: /default.prop

Execution Domains: /proc/execdomains

File Systems: /proc/filesystems

Frame Buffer Devices: /proc/fb

Hosts: /system/etc/hosts

Interrupts: /proc/interrupts

Input Devices: /proc/bus/input/devices

I/O Ports: /proc/ioports

Kernel Version: /proc/version

Load Average: /proc/loadavg

Locked Files: /proc/locks

Memory Information: /proc/meminfo

Memory Map: /proc/iomem

Misc Drivers: /proc/misc

Partitions: /proc/partitions

Statistics: /proc/stat

Swap Spaces: /proc/swaps