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firmware dump/backup tool for RK2808/RK2818 tablets

#1 fun_

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Topics: 14
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Joined: 28-June 10

Posted 06 February 2011 - 10:52 AM

use "rkdump for android" here
http://androtab.info...p/devel/rkutils
no GUI, sorry

#2 xaueious

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LocationOntario

Posted 09 February 2011 - 01:03 AM

This tool works awesome

#3 Darkwing_de

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Posted 15 October 2011 - 03:42 PM

Hello

i tried to dump the Update.img from my no name "INTAB 5" <take a look by Amazon for Details.
is a RK 2818.
I can dump all other Images but not the Update.img.
Second try was a complete dump from mnt5 and open this with a hexeditor.
Its very different to other update.img files, normaly in the update.img
Normaly in a update.img i can read words like kernel.img or machine Info
In my dump file i can only read abcde... ABCDE and after position 0004000 all bytes are FF

mtd5: 0003a000 00000020 "backup"
mtd6: 0003a000 00000020 "cache"

i tryed dd if=/dev/block/mtdblock5 of=/sdcard/backup.dump count=237568 and dd if=backup.dump of=update.img bs=55111684 count=1 but the image was corupted

Please can anyone help ?

#4 ss383849

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Posted 22 February 2012 - 01:11 AM

good,thank you for sharing

#5 FameWolf

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Joined: 28-February 11

Posted 05 March 2012 - 04:49 AM

Was able to backup all img's.....can the resulting update.img be "flashed" directly again or does it need to be copied using dd to "restore" it? I ask because the byte count between the original update.img and this one is a few bytes different..perhaps a signature?