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ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

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Arnova 97G4 update to CM 10.1 ??
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2014/03/25 - 13:20
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Hello

as it says in the topic I have a Arnova 97G4 Tablet. It has 9.7 inch display and runs on Android 4.1.1.(http://arnovatech.com/products/g4/arn_97/specs.html?country=de&lang=de)

The Tablet is rooted and thanks to this forum I have installed CWM and could do a nandroid backup.I also have done a romdump but I dont have the original Firmware becaus Arnova does not have it on their support webside.  So I think the only possibility I have to get a newer Android version will be to install a custom rom and I hope you could help me to get CM10.1 to work on my tablet. I will attach the kernel from the nandroid I made maybe it helps.

 

Modellnummer: ARNOVA 97G4

Android-version: 4.1.1

Kernel-Version: 3.0.8+

                       xcy@localhost #11

                       SMP PREEMPT Wed Mar 27 09:16:17 CST 2013

                       HW_HSL_FTT_7660G_8188EUW

Build-Nummer: RK30_ANDROID4.1.1-SDK-v1.00.00

                       JRO03H 20130326.190544  

 

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2014/03/25 - 14:51
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2014/03/26 - 14:01
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It took me a little bit longer to flash the tablet because Windows 8.1 refused to recognize the tablet in flash-mode. Anyway with windows XP everything worked ok. ( enable USB-debugging, with the tablet in off press and hold Vol+ and connect tablet with USB to the computer )

Before flashing I changed the kernel image and the recovery image (using V6.0.3.1).Than ran RKAndroidTools erased IDB and hit run. Everything worked ok and at the end the tablet booted into recovery mode. Here i installed the Format_Nand_Fix and afterwards the mount_ intSD_to_Nand_Fix.

So far everything works ok beside the memory layout. I did a screenshot to show how it looks like now.

K800_Screenshot_2014-03-26-12-53-06.JPGImage Enlarger

I read this thread before http://www.arctablet.com/blog/forum/rk3066/need-help-with-mitech-tablet-9-7/

and thought that I would have done everything in the correct order. Could someone please give me a hint how to get the correct memory layout.

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2014/03/26 - 17:44
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Format NAND doesn't work. Go to settings and do a factory reset.

 

- Oma -

 

 

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2014/03/27 - 09:49
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Thank you for your quick respons oma.

Even though I couldnt figure out if your advise would have solved the problem because I solved it by myself you had been right, format_Nand didnt work.

This is what I did:

-flashed again with recovery v.6.0.3.1 , install Format_Nand_Fix = same result like before, but I recognized that in recovery there was written something like : can't mount cache ...

-flashed again with recovery v.6.0.1.5, install Format_Nand_Fix = same result like before, same message in recovery ,  but tablet reboots into CWM

K640_IMG_20140326_162922.JPGImage Enlarger

- flashed again with generic stock recovery ( http://crewrktablets.arctablet.com/?p=1913)

  = tablet boots into stock recovery and automatically formats nand, after this the tablet boots system and      this is what I have got now, two internal memorys one wih 2,46 GB and one with 3,75 GB .

2xInternerSpeicher.JPGImage Enlarger

So I can confirm that flashing CM10.1 with the stock recovery of your post works on Arnova 97G4.

Until now everything works fine and the rom feels quite responsive even though the Antutu score is lower than it had been on stock rom (10200 vs 13800). Maybe thats because the cpu now just shows 1512 MHz and before 1600 MHz. There are just two things I would like to change if it is possible:

- is there a way to bring the two internal memorys together to one, (int_SD_to_Nand_Fix ??)

- how can I fix the problem that there is no battery usage data ?

KeineDatenAkku.JPGImage Enlarger

Once again thank you for this great rom and your help !

  

 

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2014/03/27 - 18:25
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The errors in CWM are not relevant. CWM is searching for the logs from last run ;-)

 

For whatever reason there are problems in formatting NAND for several tabs. In this case one can use the generic recovery and flash the CWM afterwards (just tick parameter and recovery).

 

Now you are on JB 4.2. There are a few things different to JB 4.1.

Antutu score is lower. This is driven by the mali driver itself and an other governor. Set the governor to performance and you will have a higher Antutu score (not as high as in JB 4.1).

Your picture shows battery usage data. Battery usage per app is not implemented.

 

By default the mounts of my builds are swapped. So game data will be stored directly to external sd. This will give you more space and the opportunity to change the build having game data available directly.

You can correct this by int_SD_to_NAND.

 

- Oma -

 

 

 

 

 

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2014/03/29 - 12:21
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 I am on FB 4.2 with CWM 6.0.3.1 now. Laugh

Tried Antutu with govenor set to performance and it went up to 12800, but put it back to interactive because system works ok with this.

Sorry meant battery usage per app.

Just one question to see if I got you right. If I would flash the int_SD_to_NAND fix than I would have just one internal memory with about 6.2 GB ? Confused

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2014/03/29 - 15:05
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Fine.

 

No. Internal memory (apps space) remains 2,46 GB. The rest of the NAND is your (so called) internal sd.

 

- Oma -

 

 

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2014/04/03 - 16:46
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Hello and congratulations to anyone who has developed this rom for our tablet, could you kindly write a guide to flash in his section? thank you very much

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2014/09/15 - 03:36
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near710 said
Hello and congratulations to anyone who has developed this rom for our tablet, could you kindly write a guide to flash in his section? thank you very much

This would be great! Because I have no clue about how to flash my tablet or something like that, and I want to make more space available for APPS Installation. I would appreciate if someone does a guide step by step.

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