Author Topic: Flashing New ROM  (Read 2932 times)

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Flashing New ROM

« on: December 06, 2013, 10:03:50 AM »
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  • skyking

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    This is about updating the ROM on an ASUS MemoPad FHD 10 running 4.2.2

    Mods, please delete if not appropriate here

    Hope someone here is using the utilities I am and can offer some insights

    This device has no TWRP or CWM and I want to root

    Tried all of the batch style rooting methods, none worked

    Decided to cook my own using kitchen from XDA

    Installed JDK, Cygwin, kitchen

    Downloaded latest update.zip from ASUS site (full ROM zip)

    Ran the complete build process in kitchen with the following errors along the way:
    No 'magic' at start of boot.img
    Android header not found in bootimg
    No Ramdisk folder found

    I added root permissions as part of build

    Put zip file on SD Card

    Ran recovery on MemoPad and selected 'Update from SD Card'

    Noticed it was not running the updater script as UI messsages were differeent

    Appears to have just done a Factory Reset, no ROM flash, all user data gone

    I had tried to install ROM using fastboot update but got an error that there were no Android text files

    Any ideas? I've got this nice cooked new ROM but can't get it installed...

    Update: not sure what the heck that 'SD Download' in recovery even does, so a little more searching and I found that if I put a ROM zip file on an SD card the MemoPad will read the root and if there is a filename in a certain format it will let you know there is an update file ready to install. So I did this (after changing the firmware version from 4.7.3 to 4.7.4 as the system wouldn't recognize it as an 'update' cause it had the same version in the filename.

    So now I'm all excited as it is reading my custom root ROM file and installing it ... well maybe not, it just quit right away with an error. My guess now is that it read the build.prop file and saw that the version was the same to didn't do an 'update'. I guess they (ASUS) don't allow replacing a ROM or downgrading. It was a great idea and a nice try. Don't know if I'm brave enough to modify the build.prop file and give that a go.

    Anybody out there with some experience with this that can throw some suggestions my way would be appreciated.

    I'd love to get this rooted file loaded on the MemoPad since there's no TWRP or CWM (yet). Because it's an Intel chip it may not get much traction for development which is a shame as it's a great 10" tablet for less than $300.

    Latest Update: I changed the version id in the build.prop and that didn't help. The update process ends right away without even running update-script and an unknown error. Not sure what the ASUS recovery is looking for before running the script.

    So, I've run out of ideas and things to try that I'm capable of. Guess I wait for a TWRP or CWM. Miss my root  :'(

    • Custom
    • Samsung Galaxy Centura (TracFone)
    • AreaRom CWM v6
    • Arearom Centura
    • Rooted-Rom

    Re: Flashing New ROM

    « Reply #1 on: December 22, 2013, 01:57:05 PM »
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  • skyking

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    A few days after posting the original saga, I abandoned kitchen and took a different approach...

    Installed Ubuntu on the notebook

    Extracted the /system folder from the ASUS update file

    Added su binary to /system/bin

    Took the updater-script and created a shell script based on it's commands to set perms and owner, symlinks

    Ran the shell script to set symlinks, perms, owner

    use makefs_ext4 to create a1.3Gb image file of /system folder

    gzipped it up

    Flashed it with fastboot

    Rebooted MemoPad and installed superSU from market

    I'm now rooted

    Put the file up on MediaFire and started a thread over on XDA

    So far over 100 happy rooted MemoPad users

    This is kinda fun... :P

    • Custom
    • Samsung Galaxy Centura (TracFone)
    • AreaRom CWM v6
    • Arearom Centura
    • Rooted-Rom

    Re: Flashing New ROM

    « Reply #2 on: April 18, 2015, 03:38:18 AM »
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  • jordanfan45dbq

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    I have rooted my straighttalk optimus fuel lg phone and i have downloaded the superuser app and the emulator app. I am at a loss as to what to do from here or how to form the codes on the emulator exactly to what i am supposed to. I also want to get rid of any bloatlagging apps or files on my phone that i dont need, can you please help me. My email is You are not allowed to view links. Register or Login

    also how do i upgrade the firmware etc... and make it a totally better phone.
    • LG Custom
    • LG Optimus Fuel
    • Stock
    • Not Rooted

    Re: Flashing New ROM

    « Reply #3 on: April 18, 2015, 06:05:35 AM »
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  • ibub

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    You are not allowed to view links. Register or Login
    I have rooted my straighttalk optimus fuel lg phone and i have downloaded the superuser app and the emulator app. I am at a loss as to what to do from here or how to form the codes on the emulator exactly to what i am supposed to. I also want to get rid of any bloatlagging apps or files on my phone that i dont need, can you please help me. My email is You are not allowed to view links. Register or Login

    also how do i upgrade the firmware etc... and make it a totally better phone.
    Hey Rachel, I just happened upon your post listed on new posts on the Home page. As this model is quite unique (very touchy when it comes to modification), you might best look or ask in the forum category which is specific to the fuel. Here is a link:
    You are not allowed to view links. Register or Login
    We don't have a lot for the Fuel, but we do have custom recoveries (CWM and TWRP) and a slightly modified kernel with initd support. But there have been a lot of these particular devices turned into shiny bricks. So tread cautiously with any modifications. Read the forums, and try only what other users have succeeded with. There are no ROMs for this phone at this time, as attempts at compiling a kernel have led to disaster.
    • LG Custom
    • LG L34C
    • TWRP
    • Stock-Rooted

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