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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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Unbricking Arnova 7cG2 - Original ROM backup
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simondo

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2012/01/13 - 20:01
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DanielVd said

finless said

OK try this one.  NO GAURENTEE!

 

http://www.helifreakswasg.com/7cg2recovery.zip

 

Bob

i flash it, but now how can i enter into recovery?

Ahh i thought someone had made one. Sorry doesnt matter

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DanielVd

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2012/01/13 - 20:02
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simondo said

DanielVd said

finless said

OK try this one.  NO GAURENTEE!

 

http://www.helifreakswasg.com/7cg2recovery.zip

 

Bob

i flash it, but now how can i enter into recovery?

Ahh i thought someone had made one. Sorry doesnt matter

i am asking if someone that have installed cyanogenmod source can made a clockwork port following this guide: http://www.koushikdutta.com/2010/10/porting-clockwork-recovery-to-new.html

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benhum
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2012/01/13 - 20:47
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Yes there IS a recovery mode - choose 'Settings', 'About', 'Update'.

I've managed to get it into this mode using keypresses before, but I can't seem to manage it now.

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DanielVd

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2012/01/13 - 20:51
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benhum said

Yes there IS a recovery mode - choose 'Settings', 'About', 'Update'.

I've managed to get it into this mode using keypresses before, but I can't seem to manage it now.

i can't eneter because i brick my device, i need a custom recovery or if you can do a dump of your system.img after i can flash it and recover my tablet


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simondo

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2012/01/14 - 01:00
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Well if someone provides me with a dump of there boot partition id be happy to give it a go.

P.s ill be a little slow as im rewriting and trying to get cyanogen on the arnova 10 g2

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finless
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2012/01/14 - 01:18
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If I had this tablet trust that I would go after making a ROM.  This setup is very different than the other G2 tabs from Arnova.  I have poked around a bit but NO WAY would I try to make a ROM without having something to test on with this Qualcomm processor and file setup.

 

Anyway I did get a boot.img from a user to look at.  I DO NOT KNOW if it is any good!

But here it is:

http://www.helifreakswag.com/an7cg2boot.zip

Good luck!

Bob

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simondo

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2012/01/14 - 02:49
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i give up im just getting the same error every timeand i know its been built as its in the out put folder.

'unpackbootimg not found. Is your android build environment set up and have the host tools been built?'

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simondo

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2012/01/14 - 03:57
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well ive fixed the problem above and the file seems to extract good. its gathered all the info it needed from the file.

 

im going to leave it till tomorrow to do anything else i need sleep lol

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setialpha
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2012/01/18 - 19:37
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OK. Device can be connected to fastboot via Power+Volume (up or down doesn't matter). Keys will flash for 2 seconds, than device is in fastboot mode. Fastboot commands all work.

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setialpha
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2012/01/18 - 20:10
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@finless: your files are down... could you re-upload, please?

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finless
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2012/01/18 - 20:17
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There were 2 posts going on about this subject.

I provided a link to everything I have for the 7C here in this link:

/blog/forum/arnova-7c-g2/arnova-7c-g2-stuck-at-android-logo-screen/

Download link here:

http://www.helifreakswag.com/an7cg2.zip

 

Bob

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setialpha
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2012/01/18 - 20:58
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I managed to unbrick my device (wooooooooo!).

 

This is how I did it (lots of trial and error, may not apply to your device!) - quick and dirty write, don't argue about interpuctuation and layout ;):

Download the rom backup from the first post (didn't get the chance to test finnless' as I unbricked right before)

unpack the zip-file, you'll see another zip-file, unpack, too.

get unpack-bootimg.pl (http://files.coralic.nl/unpack-bootimg.pl)

use the .pl file to unpack the boot.img (you'll now have: boot.img-kernel.gz and boot.img-ramdisk

copy all files from the system folder into boot.img-ramdisk/system (override if necessary)

re-build the ramdisk with (attention linux-command!): cd boot.img-ramdisk && find . | cpio -o -H newc | gzip > ../newramdisk.cpio.gz && cd ..

now put tablet in fastboot mode: Power-up+Volume (keys will flash, wait until "unflash").

connect tablet to pc (note: if in endless boot-loop, disconnect from any cable first, hit reset and then put tablet into fastboot mode (pressing reset while connected to power-plug or pc will result in entering qualcomm programming mode!))

issue: fastboot boot boot.img-kernel.gz newramdisk.cpio.gz

tablet will flash the stuff and boot automatically. It will tell you something like "safe mode" in lower left corner.

NOW the important part! the screen will flicker with a selection screen known, then having more than one browser (or similar) quickly press the one of them (trial and erorr), so that the startup wizard launches, go through the wizard (may be done more than one time) tablet will when work.

If phone never exits safe mode re-flash unmodified boot.img: fastboot flash boot boot.img

and to the step with the startup wizard again (that was the point there mine started working again).

 

Don't blame me for this beeing stupid, but it worked for me 🙂

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tremendo

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2012/01/19 - 00:40
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great, i am trying this in a few minutes, thanks.

--

what's the usb vendor and prduct id for arnova 7cg2 in fastboot mode?

 

is it this?

 ID 18d1:d00d

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tremendo

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2012/01/19 - 01:21
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it works!!!!

setialpha you unbricked my tablet, i owe you beer, let me know if you drop by rome!

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simondo

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2012/01/19 - 06:08
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Ahh i knew there must have been a way of getting into fastboot

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