Is it possible to upgrade from A9 to A10 directly ?

[thejihell]

I mean upgrading directly from android 9 with a .zip inserted in GPS sdcard slot .
When I insert the SD card containing the .zip of Android 10 ROM, the HU ask me if Iwhant to upgrade. Is that possible without installing the A10 bootloader first ? (I dont achieve to install the bootloader with SD card created with the RK tool)

 

[marchnz]

You might have missed a few steps, including a read of how to.

 

[thejihell]

You might have missed a few steps, including a read of how to.

I always read carrefully before asking.
I followed strictly the explained méthods on several topics.
The problème IS NOT HERE !

So now I asked à simple question.

Then if you have à solution, please tell me/us
If it's to criticize stay away. Thanks

 

[marchnz]

I always read carrefully before asking.
*snip snipe*

...posted in software development forum...