[Tutorial] CMP741D Jellybean Install

[mastermind278]

Hello, I want to learn some of the new JB and I have interogante if the files are available to update the work for one CMP741D Craig CMP745 Craig Thanks in advance

It will work on that tablet with a few modifications, send me a private msg so I can make you the fixes needed.

Also let's please keep this on topic it's for the CMP741D.

I also apologize for not having an updates, been extremely busy. Nonetheless, I know some people wanted the volume buttons there are a few fixes by OMA that will do just that: Oma?s JB Fixes | Crew RKTablets

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[bolton]

Matermind278 thanks for all your work on the D&E model tablets! I wanted share with everyone what I'm using to control the volume. It's called "Volume+ FREE" and can be found in the play store.

[RiseUp]

Mastermind,
First of all thank you so much for this tutorial and all the hard work you and Oma have put into this.
I seem to be having trouble with the beginning of the procedure, because I hold down the Esc button, insert the USB cable, and instead of the screen staying black I get the android Ice Cream Sandwich logo followed shortly by the android laying on his back with his chest open and a red triangle with an exclamation point hovering over him.
-No drivers try loading in windows
-RKAndroid never detects it
-No matter if I continue holding the Esc button or not, after a few minutes the tablet resets into normal mode.
I am running RKAndroid as admin, and I am waiting until I begin holding the Esc button before I insert the USB cable.
Am I missing something?

[RiseUp]

Nevermind, root worked perfectly. Turns out the USB cable was bad. SO anyone else with this problem, swap out USB cables. Worked instantly for me.
Thanks again for this excellent writeup.

[jimn2tdi]

Great directions, I have JB up and running beautifully on this tablet. Thanks

Is there any way to change the boot logo from the ICS logo to say a JB logo? Also is there any way to add bluetooth dongle support?

[mhunt13]

Mastermind,

FYI - Tried to install just the 'touch' CWM recovery from your JB tutorial, but could not get it to install or flash on the stock rooted CMP741d. It seemed to flash OK, but never appeared on tablet.

I did find your link ([Tutorial] Craig CMP741D - CWM Install Instructions) to generic rockchip CWM recovery and that does install on the stock rooted ROM. This is version 6 CWM -- and with it installed I did find that you can boot directly to recovery from a power off state, by holding the 'menu' and 'power' buttons. Using this CWM, I took a full nandroid ICS backup. Also installed Titanium Backup, and backed up all user apps + data.

With these backups secured, I felt comfortable about using your tutorial to flash JB. That's done and working -- Thank you!

Observations with Jelly Bean installed:
- The camera is still showing mirror images -- Have you seen a fix for that??
- Lost the volume buttons in taskbar, tried the fix titled 'SystemUI_with_volume_buttons.7z' contains a 'SystemUI.apk' file --this will not install, always errors.
I did install another volume fix, called 'Volume_in_Notification...apk'. Like this a lot, puts a speaker icon in notification area (like Windows). Both these fixes are in your
link to Oma's fixes in above post.
- Not sure about Flash yet. Chrome browser seemed to just end when I tried a video. Need to do some more testing with Browser and Chrome. Is there a Flash download needed ??

I also wanted to test going back to original ICS backup. With JB the 'touch' CWM is version 5. I took the ICS backup with CWM ver 6. When I tried to restore the CWM ver 6 ICS backup with CWM ver 5 -- it errored. I'm thinking CWM 6 backups are not backwards compatible. Going to need a different restore method to go back to ICS ... should I ever really want to.

At this point JB running great, seems pretty responsive. Have restored or installed most of the apps used frequently.
Appreciate any more tips you may have.....

[deansouth8]

Here is how I took care of the volume button issue, instructions below. Went into CWM and did the keyboard test. Found out what number was associated with the buttons I wanted. Looked for the file that handles that for the OS... /system/usr/keylayout/rk29-keypad.kl Edited the document. Believe it was key59 and key158.


1. Backup the entire /system/usr/keylayout/ folder to your SD or external. This is your backup.
2. Make sure you have root read/write on your file manager.
3. Make an additional copy of rk29-keypad.kl to another location on the SD or external.
4. Open and edit the rk29-keypad.kl you just copied and change the following key binding lines you see...

key59 VOLUME_DOWN WAKE_DROPPED
key159 VOLUME_UP WAKE_DROPPED

(NOTE: You can leave the other existing volume values in. I didn't touch.)

5. Save and confirm changes.
6. Replace the /system/usr/keylayout/rk29-keypad.kl with the one you just edited with your file manager.
6.5 Confirm changes.
7. Edit the permissions for rk29-keypad.kl to make sure they match other documents in that folder or just give full permissions to it.
8. Restart the android and test enjoy. Donno why this wasn't done by Craig in the first place.

This all worked for me... Hopefully wasn't having a stroke writing this and it makes since to you.