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  1. #1
    Soundwave
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    TF300 nvflash backup file (blob.bin)

    Hi
    I have bricked my tf300 tablet and i didn't made a nvflash bootloader backup. I'm searching for blob.bin file which is used with wheelie to unlock nvflash access. My android version was 4.2.1 (15.3) WW and i need blob.bin (flatline) file backed up from other tablet. I know that file from other tablet could be incompatibile and i can brich totally my tf300, but it is the last way to try to unbrick it (i tried everything and nothing works). I think, there is a lot of users who has similar bootloader backup file and can send it to me.

  2. #2
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    I have no experience with nv flash bit I know what you are trying to do will not work. Each nv flash file is specific to a single device.

    What were you doing when you bricked the device? What can you access? Bootloader, recovery etc.

    Sent from my Nexus 4 using Tapatalk
    *I apologize for any spelng mistakes. I frequently answer questions on my phone. The content is (usually) good, but the words may not be intelligible. If you cant understand my post... check back later or call me out on it.
    Tf300 Root and Custom ROM Guide!!_________Clean Install Windows 10 and Drivers______Tf700 Root and Custom ROM Guide!!

    Android Master Help Guide
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    T100 Master Help Guide_____ T100 FAQ Thread

    Devices: Asus TF300t [Deceased], Asus t100TA -64GB, Google Nexus 6P

  3. #3
    Soundwave
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    I analysed, that wheelie.exe unlocks access to use nvflash in apx mode. Either nvflash can't get write access to apx (apx security). Wheelie checks serial number and rcm (which i've readed using nvflash from my tablet) and if they are correct then sends to tablet bootloader file and unlock nvflash write access. In nvflash i can flash specific bootloader files extracted from firmware blob and probably get back to work my tf300.

    When i turn on tablet, i see only asus boot screen (with nvidia logo and "the device is unlocked" text). I cant get into fastboot menu (RCK too), adb and fastboot doesn't see device in boot screen and in apx mode. I tried to flash asus update via sdcard (zip), no success. I tried disassembly tablet and reconnect baterry, no changes. Before brick i flashed tf700's ubuntu kernel, then it doesnt work with ubuntu so i restored in twrp tf300 kernel (grimlock) and then i rebooted, system doesnt boot, so i tried get to recovery, opened bootloader menu and tried to run rck, screen halted on twrp logo, i rebooted device and get to this point.

    I know that i have to replace motherboard, but if i can try to write other bootloader for free, why not to try this.
    Last edited by misiekantos253; 05-14-2014 at 10:57 AM.

  4. #4
    Super Moderator
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    You might try asking on XDA for the files. I don't know anyone here who uses nv flash

    Sent from my Nexus 4 using Tapatalk
    *I apologize for any spelng mistakes. I frequently answer questions on my phone. The content is (usually) good, but the words may not be intelligible. If you cant understand my post... check back later or call me out on it.
    Tf300 Root and Custom ROM Guide!!_________Clean Install Windows 10 and Drivers______Tf700 Root and Custom ROM Guide!!

    Android Master Help Guide
    ______
    T100 Master Help Guide_____ T100 FAQ Thread

    Devices: Asus TF300t [Deceased], Asus t100TA -64GB, Google Nexus 6P

  5. #5
    Soundwave
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    I found one backup on xda, but when wheelie created backup, writed chip uid in unknown for me place, and i need to know his chip uid to find it in backup file (if it's not encrypted). I will try to contact with androidroot.mobi team and ask them for it.

  6. #6
    Soundwave
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    Quote Originally Posted by misiekantos253 View Post
    I found one backup on xda, but when wheelie created backup, writed chip uid in unknown for me place, and i need to know his chip uid to find it in backup file (if it's not encrypted). I will try to contact with androidroot.mobi team and ask them for it.

    Hello, you found answer to this?

  7. #7
    Super Moderator
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    Quote Originally Posted by axccod View Post
    Hello, you found answer to this?
    All nvflash files are specific to each unique tablet. Therefore another users files will not work for you.
    *I apologize for any spelng mistakes. I frequently answer questions on my phone. The content is (usually) good, but the words may not be intelligible. If you cant understand my post... check back later or call me out on it.
    Tf300 Root and Custom ROM Guide!!_________Clean Install Windows 10 and Drivers______Tf700 Root and Custom ROM Guide!!

    Android Master Help Guide
    ______
    T100 Master Help Guide_____ T100 FAQ Thread

    Devices: Asus TF300t [Deceased], Asus t100TA -64GB, Google Nexus 6P

 

 

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