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[ROM] RK3188 Tab V88 by Oma rocks !

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By Oma7144, Senior Member on 5th June 2013, 07:43 AM
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Some Chuwi V88 stuff for evaluation and feedback






Compatibility and builds for V88 clones and other tabs see post #4.


Make yourself clear which model do you have!
- Info Chuwi Stock Firmware 1st generation models
- Info Chuwi Stock Firmware 2nd generation models
Use the latest available kernel for your model.

- Root-Tool and Stock-Edition

- JB 4.2.2 Edition

- JB 4.2.2 SDK2.0 Edition

- JB 4.2.2 Multi Window Edition

- CM10 Edition

- Paranoid Edition

- AOKP Edition

- CM10.1 Edition

- KitKat 4.4.2 Edition

- KitKat 4.4.4 Edition

- CM12.1 Lollipop 5.1.1 Edition

======================

- KitKat 4.4.2 Stock Edition gen2 loader
This build needs a selinux kernel. Do not use older kernel.
There is one common kernel for both V88/V88S genations and one kernel for V88HD.




Some video instructions, thanks to techdolph



- GPL Sources

Specs:
- PCB: V8_MV1.1_2013_03_25 >>> http://forum.xda-developers.com/show...9&postcount=46
- Screen: IPAD Mini Display, Typ 821-1536-04
- Touchcontroller: VTL ct36x
- Wifi/BT: Mediatek MT5931 with BT Cooperation to MT6622 >>> http://forum.xda-developers.com/show...4&postcount=21
- Audio: RTL5616
- Sensor: MMA8452
- Keypad: Power = 116, Vol+ = 115, Vol- = 114
- Cams: NT99252 front, OV5640 rear
- HDMI: IT66121
- Clock: HYM8563
- Flash: 2x 8192 MB HYNIX
- Akku capacity: 4270 mAh >>> http://forum.xda-developers.com/show...6&postcount=50

Teardown (thanks to vicesat): http://www.youtube.com/watch?feature...&v=YG4PYLgbLQc

Technical Documents:
not available

RK3188: quad ARM Cortex-A9 Harvard Superscalar CPU core, DDR3 / DDR3L / LP-DDR2 SD RAM interface, NOR / NAND Flash ROM support, ARM Mali 400 GPU, ARM NEON SIMD engine, 1920x1080 (Full HD) display support, Open GL ES 2.0, Open VG 1.1 support, 1080p video decode, 1080p video encode, 1080p HDMI 1.4,USB 2.0 host interface


- Oma -
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5th June 2013, 07:46 AM |#2  
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.... outdated .....

cRom v3.0
- System ext4
- CWM 6.0.3.1 recovery
- TabletUI & Multi-User
- Ethernet support
- Init.d support
- Gameloft compatible
- USB-Hub enabled
- Gamepad (PS2, XBox, ...)
- Kernel modules (cifs, tun, lan, serial)
- latest hosts, su, su-binary, busybox
- MX Video-Player, Play Music & Volume+
- Reboot Menue, Kernel Tuner, Pimp my Rom
- Dateimanager HD (Root)
- Nova Launcher

cRom v3.0.1
- light version with PhabletUI
- wifi_fix

cRom 3.1
- latest kernel #17
- wifi fix
- toggle UI: PhabletUI_fix & TabletUI_fix

cRom v3.2 & format_NAND_fix
- internal Storage 4,0 GB
- external SD mounted as NAND (up to 64 GB)
- device spoofed as Nexus 7
- intSD_to_NAND_fix

Tabs with new PCB MV2.0 will not boot on latest kernel #17, which comes
with Chuwi JB 4.2.2 and Oma JB 4.2.2 v3.1 & v3.2.
However, they will boot on kernel #11. Pls change in folder rockdev/Image.
V8_MV1.1_20130325 - S/N V88 Quad16G2130501xxx
V8_MV2.0_20130415 - S/N V88 Quad16G2130502xxx

cRom v3.3 & format_NAND_fix
- latest kernel #98 (should boot MV2.0 boards)
- back to stock mount
- battery percentage mod
- advanced keyboard


- Oma -
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6th June 2013, 09:46 AM |#3  
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Absolutely Brilliant I love this tablet! and your rom completes it. I do however do not like the home launcher, If you could can you please port the android 4.1.1 back into the device? Also you do not need so many cpu tuning and system tuning apps. I tried using pimp my rom but all most eveything I tried had no effect at all! However the performance and battery life is spectacular for this rom you have made, If you could I would be very grateful if you made a light version of the rom aka no bloatware etc remove all unecessary apps?
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6th June 2013, 05:59 PM |#4  
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================================================== =====================================
Firmware will also work on: V88s, V88 Titanium Ice Green
For new hardware revisions without QUAD in the serial number (V88, V88S, V88HD) see here
================================================== =====================================
Clones:
- ICOO Fatty2 http://forum.xda-developers.com/show...&postcount=260
- Dragon Touch R8 mini http://forum.xda-developers.com/show...&postcount=657
- Alcor Zest Q813i http://forum.xda-developers.com/show...&postcount=660
- Alcor Zest Q813ix http://forum.xda-developers.com/show...postcount=1166
- Cbox Tab X785 http://forum.xda-developers.com/show...&postcount=786
- Ritmix RMD-785 http://forum.xda-developers.com/show...&postcount=929
- Dyno 7.85 http://forum.xda-developers.com/show...postcount=1282
- Xtreme X81 http://forum.xda-developers.com/show...postcount=1309
================================================== =====================================
Firmware may work on other tabs coming without retina screen (change kernel): Kernel Archive

Verified:
- Vido Mini One ZZ http://forum.xda-developers.com/show...&postcount=605
- Vido N80RK http://forum.xda-developers.com/show...&postcount=357
- Pipo M1pro http://forum.xda-developers.com/show...&postcount=465
- Pipo M8pro http://forum.xda-developers.com/show...&postcount=465
- Pipo Max M9 http://forum.xda-developers.com/show...&postcount=404
- ifive X2 http://forum.xda-developers.com/show...&postcount=590
- Colorfly CT801 http://forum.xda-developers.com/show...&postcount=922

Builds for other tabs:
- ifive mini3 http://forum.xda-developers.com/show...&postcount=517
- Pipo U8 http://forum.xda-developers.com/show...&postcount=512
- CX-919 http://forum.xda-developers.com/show...&postcount=527
- Sticks/Boxes http://forum.xda-developers.com/show...&postcount=540
- Cube U35GT2 http://forum.xda-developers.com/show...&postcount=642
- Vido N80RK http://forum.xda-developers.com/show...&postcount=900
================================================== ======================================

- Oma -
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6th June 2013, 09:18 PM |#5  
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Thank you for sharing your ROM with us, i will test it as soon as i have my chuwi v88 in my hands.

Glad to see you rocking the v88.

Oma rocks!
7th June 2013, 08:05 AM |#6  
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Quote:
Originally Posted by Oma7144

The combination tab/firmware is fast enough for everything, so additional tuning maybe show not that effect

I compile the images for my personal use and let all other participate (if they like).
So there maybe a lot of apps you will never use. You can strip that down by using hiuninstaller for example.

The build comes with stock launcher, too.

- Oma -

I aso noticed that when gaming your rom starts freezing and i get massive lag spikes! I know that this shouldnt be like that as previous roms and oiginal firmware i have used did not do this! can you please try and fix it? This happens with NBA2k13 and Asphalt 7 aswel as NDS Emulators, Aso is it possible to port the android 4.1.1 launcher to this new rom? I do not ike the look of the new stock launcher compared to the previous launcher!
7th June 2013, 05:03 PM |#7  
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Thank you for feedback.

I did download Asphalt 7 from Play Store and played for a while. Nothing special noticed.

Stock-Launcher from 4.1.1 is not possible due to other API-level.

- Oma -
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7th June 2013, 07:33 PM |#8  
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I got a lot of questions according usb-driver and RK-Flashtool, mainly from the german community.

Pls find here my hints and recommendations in german.

- Oma -
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7th June 2013, 10:11 PM |#9  
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Quote:
Originally Posted by arielp

hi
thank you for developing for chuwi v88, really appreciate your work.

i have some question regarding chuwi 4.2.2 oma v3.1:

why the clock font and taskbar icon so small, compared to TabletUI on 4.1.1,
anyway to change to phablet ui? changing lcddensity build.prop to 213 does not do the trick.

usb mass storage seem not working on me, windows only showing 2 empty drive, on tablet no notifitcation to enable massstorage, MTP and PTP mode works fine.

thank you.

Confirm problem with usb mass_storage. Build with PhabletUI will follow.

- Oma -
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7th June 2013, 11:21 PM |#10  
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As requested Light Version with PhabletUI.

- Oma -
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8th June 2013, 08:13 AM |#11  
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Quote:
Originally Posted by Oma7144

As requested Light Version with PhabletUI.

- Oma -

3.0.1
Kernel is back to April 24 version, probably due to usb mass storage problem?
(before it was 3.1 version with May 29 kernel)

does this version 3.0.1 also include power usage improvement introduced in previous 3.1 ?


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