[Nvidia Tegra Note 7] hacktrix2006:
Nvidia APX 4.4.3 / 4.4.2-2.5 Images (P1640 Devices Only)​

Please do not contact me via E-mail asking for assistance. My time is limited as it is. All info required to repair your tablet is in this OP post so please read it carefully!!

IMPORTANT NOTICE:

Due to the type of files in these images, there can be issues as a result of using these files on another brand.

This can lead to a totally dead device, there for this is classed as high risk.

Due to the high risk nature Myself or XDA or even Nvidia can not be held responsible for any issues that result in damaged hardware, your house burning down or the sweat coming from your hands as you try to unbrick your device!!

With that out the way, the images that are linked into this thread are for Unbricking your device if you are stuck in a mode called APX Mode, what this images are not for is to restore to stock from a custom rom or recovery.

You will need to install the APX Driver which works on Windows XP to Windows 8.1 however you will need to run Windows 64bit with Driver enforcement off prior to trying to install the Driver as these drivers are Unsigned, if your running a 32bit OS you do not need to mess around as much.

However Windows 64 bit users i have made a command script to disable and enable driver enforcement without having to here there every where, They are included in the APX Unsigned Driver.zip

To be open on the .cmd files here are their contents

Disable Driver Enforcement.cmd

bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS
bcdedit -set TESTSIGNING ON

Restore Driver Enforcement.cmd

bcdedit -set loadoptions ENABLE_INTEGRITY_CHECKS
bcdedit -set TESTSIGNING OFF

Make sure when running any of these .cmd files above that you do so as Administrator else it will not work and a reboot will be needed after each one. So basically you run Disable Driver Enforcement.cmd and reboot, then install the apx drivers, then run Restore Driver Enforcement.cmd and finally reboot for the last time.

So Now for the Links

Nvidia APX Unsigned Driver: https://mega.nz/#!3VM1jLQA!hEgasvlWtvpm34RVuTdW_fNFm86PxLQ6djBHpSrpKd0

Nvidia Tegra Note (P1640) 4.4.2-2.5 APX Image (Unoffical): https://mega.nz/#!vZsQ2Y6C!ix7a6uzN7esirzhLVs0BfVIPNW0Yo-C_yfvJmy1Y1TA

Nvidia Tegra Note (P1640) Advent Branding 4.3 APX Image: https://mega.nz/#!KVEHWTLa!lhIWrV3ZFffeUVZZz3XGp0By2Ov7Xh6YDSuo7dnVz4o

*Nvidia APX Forced Flash with Serial Fix: https://mega.nz/#!fd8hhCZT!wjOWDywVEnzp_W4-KxJmTe5NvoH5enIPIUitrgtvAqo

*If your device doesn't flash in APX because of your Serial on the device being incorrect or you for some reason had tried a APX flash run and it failed please extract these files and over-write the file(s) requested.

Once this is done open the NCT_GPT.txt file and only adjust the following line:

<name:serial_number; idx:0; tag:0x80; data:TEGRANOTEGP00A123456>

So in my case

<name:serial_number; idx:0; tag:0x80; data:0521300014999> (Not my Serial but you should get the jest)

Then save the file

Now edit flash_signed.cfg and replace the line #filename=nct_gp.txt to filename=nct_gp.txt and save that file. You can then run the bat file to flash the device with serial number correction.

Failure to change the serial number line prior to running flash_signed._forced.bat will result in your serial being TEGRANOTEGP00A123456 which will then be unable to receive any OTA's from Nvidia or Issues with Google Services. I suggest using the Serial Number from the Box.

Last but not least if you have been able to use the 4.3 Advent APX Images before you can also use the 4.4.2-2.5 APX Image as it saves the OTA Update trip after booting up to get to the 2.5 OTA Update.

This Does work on the Following Devices:

*Advent TegraNote 7 (P1640)

*EVGA (P1640)

*XOLO (P1640)

*HomeCare (P1640)

This Doesn't Work on the Following Devices:

*CHERRY MOBILE (P1988)

Bootanimation XOLO: Download