First 10b G2 (Resistive Screen) Fully Rooted ROM - TEST - By Finless - Forum

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First 10b G2 (Resistive Screen) Fully Rooted ROM - TEST - By Finless

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finless

Stanton, Ca

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2012/01/11 - 22:41

This ROM is for the Arnova 10b G2 Resistve screen ONLY! If you have the capacitive screen DO NOT USE THIS or you will be bricked with a non-working touch screen! We DO NOT have a Capacitive screen ROM at this time to flash you back to stock!

OK…. So first off is WARNINGS! There is NO update.img from Arnova at this time! This means if my ROM does not work, you could be bricked until Arnova releases a update.img file!!!! That in fact is the truth of the matter! However I do have a IMG dump which can possibly recover you if this ROM does not work. BUT no gaurentee! I do not have a Arnova 10b G2 thus I could NOT test this firmware! Unlike the 7 G2 and 10 G2 where Arnova released a update.img to recover you, the 10b G2 has none at this time.

However with that said, after learning how to root the 10 G2, 9 G2, and 7 G2, I am DAMN sure this ROM will work. The setup of the files are the 100% the same as the 7 G2, 9 G2 and the 10 G2. So I am pretty darn confident this ROM will work and provide the same root.

FINAL WARNING…. I do not have a 10b G2 thus could not test this. However I did flash it on my 10 G2 and it booted but as expected the screen touch did not work (different screen driver). BUT… YOU ARE BETA TESTERS! Do not complain to me or the admin of this site of you brick your Arnova! You have been warned!

OK on to the ROM details:

The Arnova 10b (resitive screen) G2 firmware was setup EXACLTY like the Arnova 10 G2, 9 G2 and the 7 G2. Thus I made the exact same changes to the 10b firmware as I did for the 10 G2 and 7 G2. EXCEPT this time thanks to use sowa I extended the system space to 1 gig instead of 512 eg.

1) Converted system.img from cramfs to ext3
2) Gave an extra 100mb space to the /system parition so rooted apps that need it can use it.
3) I gave 1 gig of space to app/system. My current 7 G2, 9 G2, and 10 G2 only have 512 megs. This one has 1 Gig thanks to sowa's example on the 8 G2.
4) Integrated the changes Admin asked me to do to help support Arctools Market install.

Flashing the firmware requires you install drivers and use the tool I supply in this kit. There is a README.TXT in the zip so READ IT please and follow all instructions.

OK, OK….. with SOME hesitation only because recovery could be a problem and I have no way to test this ROM, I present you with my fully rooted ROM. My 4th Arnova RK29 root ROM 🙂

http://www.helifreakswag.com/arn10br_g2_23_1_0_arctools.zip

Please if anyone has the "nads" to flash this, let me know how it goes! If it is as successful as my 7 G2, 9 G2 and 10, I think you will enjoy it. I am pretty sure with a LARGE amount of confidence, this ROM will work. BUT…. DO IT AT YOUR OWN RISK! I am not responsible for this working or not. I am simply posting it for those that dare 😉

Bob

P.S. Special thanks to user Rich for dumping a PROPER backup.img from the 10b G2! That is what made this happen and no other way because a update.img does not exists from Arnova.

Bob

leetudor

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2012/01/11 - 22:51

Will this work on both of the 10b G2? Per the website there are two tablets.

"The ARNOVA 10b G2 is available in both capacitive multi-touch (2 point) and resistive dual-touch screens (the G2-Dual Touch models). "

finless

Stanton, Ca

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2012/01/11 - 22:55

I do not know which version Rich dumped. We will have to wait till he gets back and tells us if he has the resistive screen or the capacitive.

Sorry.... I wish I knew as I did not know they offered both. I thought the 10b G2 was resistve only!

Bob

finless

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2012/01/11 - 22:57

Actually I read his post... It is the resistive screen!

I will update the title of this ROM post

Bob

finless

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2012/01/11 - 23:04

I updated the file name to arn10br_g2_23_1_0_arctools.zip to reflect this is for the 10b Resistive G2.

Bob

leetudor

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2012/01/11 - 23:20

Good, that is what I have.

finless

Stanton, Ca

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2012/01/11 - 23:48

So you going to go for it?

Please let me know how it goes.... Doing a ROM I can't test keeps me on pins and needles until someone reports back!

Bob

Rich

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2012/01/12 - 00:04

I just got back and you've already got it finished!?!

Damn that was fast Bob! You're good!

Excuse the newb question but since I have the original images I took off the pad, if something does go wrong all I have to do is re-write the files/drive images/whatever you call them I originally copied off using rkflashtool and I'm back to where I was? Is that right?

Do you suppose it would be useful to others if I were to create a bootable ubuntu CD that has rkflashtool precompiled and ready to use?

I could probably set up a script (or at least an easy to follow step by step walkthrough) to read the table, parse it and create a full backup on some drive.

Wouldn't that make the tablet un-brickable no matter what happened? Am I thinking about this right?

Rich

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2012/01/12 - 00:06

leetudor,

Was it you that had a bricked 10b g2? Was that a resistive one?

finless

Stanton, Ca

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2012/01/12 - 00:14

Rich, the unbuntu thing would be helpful I think.

As for flashing back. No the backup.img you gave me that YOU have is hosed. You can't use it. However, I fixed it so I do have a update.img that SHOULD recover you if my ROM does not work. I say SHOULD because I cannot test it! So there is NO 100% gaurentee..... I did install it on my 10 G2 and it booted but of course the screen did not work.

Oh and also you will have to use RKBatch tool to flash back with my update.img. You cant use the copy to the device simple approch becuase the partition structure has changed.

Rich, I am pretty damn confident my ROM will work but only you can decide if you want to risk it.

Bob

simbak345

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2012/01/12 - 00:49

Watching with great interest. Of course this tablet is for my kid, so maybe best that I don't root it - kind of like the fact that they won't be able to do much with it 😉

Rich

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2012/01/12 - 00:50

Hmm,

I like the belt and suspenders approach, can you tell me what is wrong with the backup img I made? it was somehow fixable?

I'd really like to build a bootable CD/usb stick image that would let anyone with a 10b 2g backup and restore the original state/factory image using rkflashtool as unless I am mistaken that would allow any bricked tablet to be brought back from the dead.

I'm certain that with minor mods to the tool that it could be used for any android device that uses the same protocol as flashtool, all it would take is the knowledge of where the "partition table" (for lack of knowing what to call it) is and how to parse it.

Should this be a separate thread? I think this should be a separate thread...

finless

Stanton, Ca

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2012/01/12 - 01:02

Rich, ready from post #15 where I explain whats wrong with your backup.img.

/blog/forum/arnova-10b-g2/arnova-10b-g2-firmware-dump-ready/#p2729

It was too large and I had to use a hex editor to go find the CRC and truncate the file from that point on.

I then created a valid update.img from your backup.img using the Android tool set. (makeupdate.bat).

So I have a valid update.img but because I cannot test it fully (it did boot on my 10 G2 just no touch screen), I do not know if it will really recover you back to stock firmware. But I BET it will with 99% certanty.

Bob

Rich

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2012/01/12 - 01:05

You know simbak345, you made a pretty good point there,

Other than removing the crapware and installing the real market and amazon market, Do I need root on an everyday basis? I don't login as root on my every day use desktop (Yes, linux). I use su or sudo and enter the password when I need to do things that require root, I think of it as being a last barrier to a bad oops.

So, Bob, is that possible to set up or does the GUI make that impossible? Could we write a program that switches root on and off with a password so simbak could do what he wants when HE's using it but the kids can't screw it up?

I can see that I need to dig into this, it would be cool to have separate users on a tablet just like you do on a regular machine.

Rich

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2012/01/12 - 01:12

Interesting, I backed up the entire "partition" but the data area was smaller. I'm guessing that restoring the "partition" would still work as the data length must be indicated within the data itself...

I have so much to learn....