A3-A40 Stock Firmware?

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vel2000
vel2000 Member Posts: 3 New User
edited February 2018 in Tablets

I want to port/build TWRP for this tablet.

So I need the stock firmware, including boot.img and recovery.img and scatter file.

Any ideas where to download the firmware?

 

Thanks in advance

Answers

  • vel2000
    vel2000 Member Posts: 3 New User
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    Yes, I know that file, but this is just an OTA update.zip, without recovery.img, but not a full firmware for Sp Flash Tool.

    Better than nothing, but I would prefer a full ROM...just in case ;-)

  • sagu
    sagu Member Posts: 6 New User
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    Ask acer not acer community.

     

    Here are some links to some topics like this topic:

     

    https://community.acer.com/t5/Android-Tablets/acer-will-not-provide-me-with-A3-A30-stock-firmware-how-come/td-p/408932

     

    https://community.acer.com/t5/Android-Tablets/A1-840-stock-recovery-image/td-p/423683

     

    Read them all and now you will probably know what you will need to do.

    -----------------------------------------------------------------------------------------------------

    But you can also get recovery and boot image from your device if you have it.

    https://android.stackexchange.com/questions/132314/can-we-backup-the-stock-recovery-img-in-any-way

    https://www.leakite.com/2016/03/how-to-backup-recovery-and-bootimg-for.html

    ___________________________________________________________________

    but the best lin is this: http://www.theandroidhow.com/2014/05/how-to-make-backup-stock-boot-recovery.html

    at the and on this site said:

    We are now done from creating stock images and we can use it to create a ClockworkMod (CWM) 
    (or in your case TWRP) recovery and do full Stock ROM backup.

     

  • vel2000
    vel2000 Member Posts: 3 New User
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    sagu wrote:

    but the best lin is this: http://www.theandroidhow.com/2014/05/how-to-make-backup-stock-boot-recovery.html

    at the and on this site said:

    We are now done from creating stock images and we can use it to create a ClockworkMod (CWM) 
    (or in your case TWRP) recovery and do full Stock ROM backup.

     


    Ask Acer... will do that, if I can't find a better solution.

    1. Regarding your first two links: none of these methods will work, since they either require "root" already, or are just not compatible with this (Mediatek) device!

    2. For the third link ("But the best is"): This method is obsolete for newer MTK devices, because they are no longer supported by the outdated "MTK Droid Tools"!

    3. I don't have access to this device atm (different country), but a working "twrp build environment" for MT8163 on my current developer machine in this country. So the idea was to build TWRP here and and to flash it, on my next visit in that different country.

     

    PS: If somebody owns this device, knows how to use SP Flah tools and wants to help:

    Please do a "Readback" from the following, hopefully correct, addresses and upload the files somewhere.

    "boot.img" startsector = 0x4d20000 | length = 0x1000000
    "recovery.img" startsector = 0x5d20000 | length = 0x1000000

     

  • sagu
    sagu Member Posts: 6 New User
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    Ok

     

    I will do it because i want to help.

     

     

    And i love twrp..

     

    and i wont to have it...

     

    Plz help me!

    Is there any way to check sectors.

    Can you give me full manual.

    I do not won't to brick or delete somethink from my tablet

     

     

     

  • Corbie
    Corbie Member Posts: 1 New User
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    Acer has no support... all what they can say - send item back...

    Drivers on their website do not work

    Firmware - out of date, cant reinstall because they shared old one, but their tablets has newer version on.

    Long time ago I think Acer good brand, now I think - *****...

     

  • Pierrot
    Pierrot Member Posts: 5

    Tinkerer

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    Hello guys
    You can find the stock here ftp://ftp.support.acer-euro.com/Tablet/Android/A3-A40/
    I'm not working for Acer but this release is the one reloaded in repairs center .............

  • HellNash
    HellNash Member Posts: 5 New User
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    Hi I need a Stock ROM With Recovery.img and boot.img for my A3-A40 Please. Does anybody have the RV03 or RV07 Stock ROM? The one in the Acer website is only an update and cannot be used to Flash the ROM of my Device. If anybody can help please?