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ROMs Where is my boot.img

saad_sinpk

saad_sinpk

Newbie
please please please it is humble request, i beg u guys please tell me where can i find boot.img please
i just want to change simple splash image for that i need boot.img
please guys help me i am working on this from last 2 days and right now i am crying please help me
i have some china table check this detail about tablet
Code: 
# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=IMM76D
ro.build.display.id=a760_2g_ep_V1.1.10_20130320_m782_c779cd5_logo
ro.build.version.incremental=20130320
ro.build.version.sdk=15
ro.build.version.codename=REL
ro.build.version.release=4.0.4
ro.build.date=2013年 03月 20日 星期三 14:33:59 CST
ro.build.date.utc=1363761239
ro.build.type=eng
ro.build.user=lyl
ro.build.host=lyl-brn
ro.build.tags=test-keys
ro.product.model=A760
ro.product.brand=softwinners
ro.product.name=crane_a760
ro.product.device=crane-a760
ro.product.board=crane
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=unknown
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=exDroid
# ro.build.product is obsolete; use ro.product.device
ro.build.product=crane-a760
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=A760_V1.1.10_20130320_m782_c779cd5
ro.build.fingerprint=softwinners/crane_a760/crane-a760:4.0.4/IMM76D/20130320:eng/test-keys
ro.build.characteristics=tablet
# end build properties
# broncho tag,please don't modify
ro.broncho.id=A760_V1.1.10_20130320_m782_c779cd5

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.com.android.dateformat=MM-dd-yyyy
ro.config.ringtone=Ring_Synth_04.ogg
ro.config.notification_sound=pixiedust.ogg
ro.config.alarm_alert=Alarm_Classic.ogg
dalvik.vm.heapstartsize=5m
dalvik.vm.heapgrowthlimit=48m
dalvik.vm.heapsize=256m
ro.kernel.android.checkjni=0
persist.sys.timezone=Asia/Shanghai
persist.sys.language=zh
persist.sys.country=CN
wifi.interface=wlan0
wifi.supplicant_scan_interval=15
debug.egl.hw=1
ro.display.switch=1
ro.opengles.version=131072
persist.sys.strictmode.visual=0
persist.sys.strictmode.disable=1
hwui.render_dirty_regions=false
persist.sampling_profiler=1
persist.sys.usb.config=mass_storage,adb
ro.property.tabletUI=true
ro.udisk.lable=crane-a760
ro.product.firmware=1.5rc1
ro.broncho.MemorySize=0
ro.broncho.MOT=y
ro.broncho.GPS=n
ro.setupwizard.mode=OPTIONAL
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
 
Or if you deleted the rom installer get the same rom you got it from, bte if you mean the bootanimation then its in /system/media/bootanimation.zip
 
i have extract rom but still can't find any boot.img or .img check below image what i got when i create backup of rom
upload_2015-1-2_5-32-20.png

upload_2015-1-2_5-33-3.png
 
Do u have your pc showing hidden files if you give me the rom or link to it i can see if i can get it from my end
 
It looks like you have just dumped the system partition. The boot.img lives on the boot partition.

I think you will need to dump the memory block that contains the boot partition. I'm no pro at this stuff, I can only try to help a little.

Try running this command on a rooted adb shell:
cat proc/partitions


Also browse your system files and look for the by-name directory. It should be in the following location:
/dev/block/xxx/by-name/

The xxx will vary between devices. Once you have the full path for your device, again from a rooted adb shell, issue this command:
ls -al /dev/block/xxx/by-name/*

Copy/paste that information here if needed, but it will output all the partition names alongside the memory block number. If we can determine which one is the boot partition, we can dump that block.

You can dump a memory block something like this:
if=/dev/block/mmcblk0p9 of=/location/name.img

If we can't determine which block is the boot partition you could just dump them all one by one.

Hope this at least gets you going in the right direction!!
 
Wow brian really nice at explaining that but i think if he made a backup via CWM or TWRP he can easily get the boot.img from the backup easily or the rom it can also depend if he has android sdk installed to do those commands on pc, because pc cannot rely on its own coding yo forfill those commands and android sdk can but i can also be wrong
 
You are certainly right, it would be a lot simpler to just take the boot.img from a backup. I could be wrong as I was only ASSuming things, but I thought maybe the op didn't have custom recovery as they mentioned they had a generic Chinese tablet.

Since they did at least have access to the build prop, I figured they at least obtained root. Maybe towel root or another generic root method??

I'm all for simple, I just thought it wasn't an option. But definitely, go that route if you have a custom recovery installed.
 
Yea its difficult on genric brand tablets or phones but you csn use a non root app to back up the boot.img but dont know if an app like that exsists
 
The above pictures he has shown are from an already installed ROM. Will it not be easy to extract from the ROM itself?
 
thank you all for ur reply, i have check all folders and in my table from root browser and check all dev folder all system folder there is not boot.img

cyberdev, if u want to help me can u give me ur skype or anything than i will give u my teamviewer id and from teamviewer i will show u all files and tablet files..
 
If your device doesn't support the "by name" convention, you can also try cat /proc/emmc to get a partition table. One of the above will likely work.
 
hi, i am using smartq u7 and i have download there rom, and now i can see this all files
i have add u on skype . cyberdev
upload_2015-1-13_11-33-16.png

and i am dam sure splash image is in boot folder
this is boot folder
upload_2015-1-13_11-33-35.png

first file logo is bmp file, and i change it according many times... and save it with same size and size format
u-boot.img i could not extract it, i google to much, i have install virtual machine also still can't figure it out.


please please guys help me, really need ur help
 
Alright i accepted your request on skype

U-boot.img if ut hasnt been modified it should hsve no issues
 
no, i have use many methods using linux, using window, i am attaching here u-boot, you check this.
check boot.zip, in this i have attach all files contain in boot
 

Attachments

actually guys, i want to change slash screen, i mean boot logo, i have search many ways to do it but i could not find it, i think logo is coming from this boot.zip can u guys please let me know what i do to change logo.. please. i have change logo file it is bitmap file but can't change logo please help me out
 
no actually i have download rom from original website my tablet is working fine, issue is i want to change boot logo, and i think boot logo is in u-boot.img i want to extract u-boot.img
 
That's as far as the extraction goes.

Within the boot.img there is a uboot.img. That is what I have linked above because it seemed you were having issues extracting it from the boot.img. Is that not what you're wanting? If not, we are having communication issues I'm afraid.

Edit: ok I think I see what you are asking for now. You are wanting to further break down the uboot.img? I don't think you're heading down the right path there personally. I haven't looked at that file in particular but I assume its a binary file so unless you think you can hexedit that and get different results, I'm not sure what else to do.
 
Last edited:
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