no way to do it without flash the rom ? like with just a custom recovery and flashing a zip with su and supersu like i've done on my wildfire s ?

i can understand that it's different, just was wondering if there is a similar way to root the arnova 7i g3. and for the wildfire i didn't use a script, just unlock bootloader with the help of the htc website (maybe tht's what u are talking about), flash recovery with adb commands and then install SU.zip from the recovery. tht's all. anyway my phone isn't the problem there. Any link to know the right way to dump and modify the arnova system.img ?

ok, just back on the real topic now. first thx for the links. But i dnt know if i'm going to work on linux or windows because i don't have linux on my computer at the moment. Anyway if really need linux i got a live cd and i still can install linux with dualboot. i've done a quick look on your links (will read more after) but already have some questions. When i got the system.img, how can i modify it ? i don't know how to edit .img format. Then, arnova give the initial firmware on arnovatech.com in a update.zip format. can i use that ? last question, do i need a special version of the su binary or any su will work ?

Thanks for your help

you havn't answer if i can use the zip firmware on arnovatech to have the system.img. anyway i've done a quick look again, and with the links u give me, i need linux. so i have try with my live cd, install what is needed but got a low space warning message and so the dump got freeze and i needed to force reboot. So i'll install ubuntu on dualboot and will dump from there. I'll do that later but just tell me if i'm right in what i need to do.

dump current system.img (with sudo ./rkflashtool r 0x00100000 0x00354000 > /tmp/system.img)

mount system.img and add su binary and superuser (in system/xbin and system/app ?)

flash system.img (but how exactly? something like sudo ./rkflashtool w /[path]/system.img > 0x00100000 0x00354000 ?)

and that's all am i right ? any precautions before do it ?

Again thanks for your help and sorry for my English.

hmmm... got a little problem. i have dump kernel, boot, recovery and system and of course the parameter file to know where to dump (strangely gedit wasn't able to open that parameter file but openoffice have open it). first 680 Mio for system.img but the real problem is i have use the "mount -o loop system.img system/" command but without success. it say need to specify the file system... tried to add -t ext4 but dnt work.

/dev/block/mtdblock7 /system ext4 ro,noatime,nodiratime,barrier=1,data=ordered,noauto_da_alloc 0 0

hmm ext 4 so what should i do now.

oh and just to know, do u know the manual way to have the 7i g3 in flash mode ? because i use the adb reboot bootloader command actually. tried some combination with reset + power or vol + / - but didnt work

here is the parameter file. i added the txt extension because of the file extension error when try to upload. and maybe i dnt do it well but still no manual flash mode ^^ anyway that's not the problem. i just need to mount that system.img....