Android Tablets Forum banner
1 - 20 of 262 Posts

·
Registered
Joined
·
9 Posts
Dev Oma along with Astralix, JochenKauz and netlars have worked feverishly to create several revisions of the Oma Rocks ROM. Below are the revisions and patches linked to make your v88 (and v88s) purr like a finely oiled machine. Each ROM version has ClockWorkMod (CWM) and provides Root permission in its build.

The explanation for Oma's build number nomenclature is below:
v3.x - JB 4.2.2
v4.x - JB 4.2.2 SDK2.0
v5.x - JB 4.2.2 SDK2.0 multi window

Below are DL links and benefits of the latest release for each type of build (v5.x, v4.x and v3.x)

PLEASE NOTE THE FOLLOWING: CHUWI HAS CHANGED OUT HARDWARE FOR THE SCREEN CONTROLLER FOR 2ND GEN MODELS OF THE V88. 2ND GEN MODELS CAN BE IDENTIFIED BY THEIR S/N. MODELS WITHOUT "QUAD" IN THEIR S/N ARE CONSIDERED 2ND GEN MODELS (THIS CAN INCLUDE THE "TIG," V88S AND V88HD MODELS). 1st Gen models (V88 QUAD, V88S AND TIG) should use kernel Bob#160 which is the default kernel in the later builds of this ROM.

2nd Gen model users should check what kernel currently is being used in with their firmware before flashing this (Settings menu - About tablet - Kernel version). Once you have ID'd your kernel number, swap out the kernel in this ROM with your compatible one.See this post which provides DL links for all the 2nd GEN kernels. Make sure you flash your 2nd Gen model using the correct kernel or your screen will not work (you will get a black screen) and will need to reflash your tablet. See this post on how to swap out your kernel if you get a black screen.


Thread Links:
XDA Thread discussing ROM
Oma's Download page for all RK31** builds (see "Oma's RK31 Stuff")

Flashing Instructions for Installing Oma Rocks ROMs:

1. Copy format_NAND fix to sdcard
2. Hard power off your V88 (hold power button until it powers off)
3. While holding Volume+ (up) button
4. Plug USB into your PC (update mode)
5. Install missing drivers from driver folder if you have not already
6. Run RKAndroidTool.exe as Admin (click right)
7. Select EraseIDB (current should count up to 4096)
8. Select Flash Rom
9. V88 will boot into CWM
10. Run format_NAND fix (install zip from ext_sdcard)
11. Reboot
12. wait 4 minutes


NOTE: Oma has provided a new kernel (bob #160) which can be flashed with this ROM. Link to kernel download can be found here.

Patches:
NAND_fix - batch file which is installed via CWM ("install zip on sdcard" or "external sdcard" commands in CWM) allowing tablet to properly mount external/internal SD card and wipe cache
PhabletUI - batch file which is installed via CWM (("install zip on sdcard" or "external sdcard" commands in CWM) allowing tablet's UI to use the "Phablet" UI style
TabletUI - batch file which is installed via CWM (("install zip on sdcard" or "external sdcard" commands in CWM) allowing tablet's UI to use "Tablet" UI style

Patch Install Directions:
1. Copy patch file to your external card
2. If installing Oma ROM for the first time, ROM will automatically install CWM and boot into CWM once installed
2.5 If already installed Oma ROM, boot into CWM by either using recovery app (like Quick Boot) or do a hard shutdown and then hold the volume "+" and then power button for three seconds and you should boot into CWM
3. Once booted into CWM navigate to "install zip to external sdcard"; navigate to where on external sdcard patch file is located and install
4. Reboot into system using CWM


*Note: if your patch file on your external sdcard isn't seen at first, try removing and re-installing card and look for it again.

Oma Rocks ROM Revs:

Note: Early Oma Rocks ROM builds may be incompatible with your device as Chuwi released modification to hardware. Version 3.3 and up account for these changes and should work on all v88 and v88s. Lower versions may cause your tablet to "soft-brick" and should not be attempted. Discussion of v3.3 and later builds starts on post #71 and forward

Build v5.3a (JB 4.2.2 SDK2.0 multi window)
Based on Chuwi's 08/01/13 firmware release.

XDA Thread Link: http://forum.xda-developers.com/showpost.php?p=47526967&postcount=967
XDA Download Link: http://crewrktablets.arctablet.com/?wpfb_dl=1214
Mirror Link: TBA

Please note: if your tablet's S/N DOES NOT include the word "QUAD" in it, please flash this ROM with the kernel linked here.

Release notes:
- CWM 6.0.3.1 recovery
- system ext4
- latest kernel #160
- internal Storage 4,0 GB
- PhabletUI & Multi-User & Multi-Window
- ethernet support
- init.d support
- gameloft compatible
- USB-Hub enabled
- gamepad compatible (PS2, XBox, ...)
- kernel modules (cifs, tun, lan, serial, audio)
- latest hosts, su, su-binary, busybox
- Reboot Menue, CPU Tweaker, FX-Sound
- Dateimanager HD (Root)
- Nova Launcher, Experience Launcher

"Ok Google" only available in English; to enable: Menu > Settings > Voice > Offline Speech Recognition > update if possible or uninstall and re-install the English (US) file.


NAND_Fix Patch DL link.

3.) Build: v4.3 (JB 4.2.2 SDK2.0)
ROM Link: http://go.redirectingat.com/?id=43574X1155958&xs=1&url=http://crewrktablets.arctablet.com/?wpfb_dl=769
ROM Mirror: https://docs.google.com/file/d/0B8U_zuXEtYujVnJOeGt2X1pWb0E/edit?usp=sharing
Thread Link: http://forum.xda-developers.com/showpost.php?p=43508574&postcount=201

Upgrades from v4.2:
- TabletUI with volume buttons
- standard SettingsUI
- spoofed as Nexus 7
- FX soundhints for advanced users:
- higher performance in nova launcher
- full access to the build- change UI via build prop
- enable load of kernel modules
- disable su notifications


1.) v3.4 (JB 4.2.2)

XDA Discussion link: http://forum.xda-developers.com/showpost.php?p=45816158&postcount=637
ROM link: http://crewrktablets.arctablet.com/?wpfb_dl=940

ROM Benefits
- CWM 6.0.3.1 recovery
- system ext4
- latest kernel #160
- internal Storage 4,0 GB
- device spoofed as Nexus 7
- PhabletUI & Multi-User
- battery percentage mod
- ethernet support
- init.d support
- gameloft compatible
- USB-Hub enabled
- gamepad compatible (PS2, XBox, ...)
- kernel modules (cifs, tun, lan, serial)
- latest hosts, su, su-binary, busybox
- FX Sound
- Reboot Menue, CPU Tweaker, Pimp my Rom
- Dateimanager HD (Root)

Instructions are included in the download pack. Copy format_NAND_fix to your external SD card.

- TabletUI fix
- PhabletUI fix


smithmal
 

·
Premium Member
Joined
·
1,062 Posts
flop4,

Thatnks for the link. Wow that was fast. I'm moving this to the ROM Developments sub-section as this is a ROM rather than official firmware.

ROM Description:
Chuwi V88 by Oma JB 4.2.2 v3.0
- System ext4
- CWM 6.0.3.1 recovery
- TabletUI & Multi-User
- Ethernet support
- Init.d support
- 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 format_NAND_fix
Instructions are included in the download pack are as follows:

Instructions

1. Hard power off your Chuwi V88 (hold power button until it powers off)
2. While holding Volume+ (up) button
3. Plug USB into your PC (update mode)
4. Install missing drivers from driver folder if you have not already
5. Run RKAndroidTool.exe as Admin (click right)
6. Select Flash Rom
7. V88 will boot into CWM
8. Wipe data/factory reset (your data will get lost)
9. Reboot
10. wait 4 minutes
smithmal
 

·
Registered
Joined
·
1 Posts
What is the "format_NAND_fix" for?

update:
Flashed it 30 minutes ago. Working great. No freezes so far, but I will keep testing it to make sure the problem is solved.
hi, i've tried flashing this rom for 2 times, but the tablet stuck on oma boot animation.

Can you please eplain the exact procedure that you used?
 

·
Premium Member
Joined
·
1,062 Posts
What is the "format_NAND_fix" for?

update:
Flashed it 30 minutes ago. Working great. No freezes so far, but I will keep testing it to make sure the problem is solved.
Drambuie,

I tried flashing this myself last night, but the instructions are a bit vague. I think they are written for individuals who are comfortable with the RKAndroidTool. Would appreciate a good step-by-step, specifically what images should be loaded into the program before flashing (as I believe there are five in the Image folder). The flashing menu is similar to this:



Which boxes should we check? Which images should we load, etc. Also I had a problem getting RKAndroidTool to "find" my RKAndroid Loader Rock Usb.

Thanks,

smithmal
 

·
Registered
Joined
·
9 Posts
Discussion Starter · #8 ·
Dumb question, after using this, how do you return to stock, RKBatchTool.exe no longer recognises the device ?
Just use the same procedure to flash this rom.
Hold the volume up followed by the power and plug in the usb cable you should see the green icon come back
 

·
Registered
Joined
·
9 Posts
Discussion Starter · #9 ·
Drambuie,

I tried flashing this myself last night, but the instructions are a bit vague. I think they are written for individuals who are comfortable with the RKAndroidTool. Would appreciate a good step-by-step, specifically what images should be loaded into the program before flashing (as I believe there are five in the Image folder). The flashing menu is similar to this:



Which boxes should we check? Which images should we load, etc. Also I had a problem getting RKAndroidTool to "find" my RKAndroid Loader Rock Usb.

Thanks,

smithmal
The rom selects the files to flash by itself. So it should be all of them except the last one then hit flash.
By the way, I had to use a translator and use the German read me to understand the procedure.

Flop4
 

·
Registered
Joined
·
32 Posts

·
Registered
Joined
·
227 Posts
i have flashed this ROM, work ok.

but i have this "slight" stutter when playing video, happens since original rom, april build.
this ROM not fixed it, i wonder will that "format_NAND_fix" will fix it?

what is for anyway?

how to flash that zip? is it in recovery??

THanks.

PS: anyway to enable phablet mode?
 
1 - 20 of 262 Posts
Top