on button + backlight button by default #7

Open
opened 2018-12-17 18:08:32 +00:00 by jackalmison · 0 comments
Owner

When turning on, we need to press the backlight button simultaneously to run the proper OS.

Is it possible to patch the On button so that it turns on as if the backlight button would be simultaneously pressed? And if so, alternatively turning On + backlight button would bring the user to Kobo's default OS.

The boot process should be something like this:

  1. Kobo is turned on and fetches the bootloader from it's internal flash chip.
  2. The internal bootloader detects thet the backlight button is being pressed >
    2.1 The internal bootloader makes chain-load from the microSD.

In order to change the default behaviour, the internal flash bootloader has to be edited. If mistaken, the Kobo stops booting forever. It's chip is welded to the board, we cant directly write to it. Perhaps there's a way using the board's debug headers.

So, in order to do this we must risk bricking a Kobo and invest many hours.

When turning on, we need to press the backlight button simultaneously to run the proper OS. Is it possible to patch the On button so that it turns on as if the backlight button would be simultaneously pressed? And if so, alternatively turning On + backlight button would bring the user to Kobo's default OS. The boot process should be something like this: 1. Kobo is turned on and fetches the bootloader from it's internal flash chip. 2. The internal bootloader detects thet the backlight button is being pressed > 2.1 The internal bootloader makes chain-load from the microSD. In order to change the default behaviour, the internal flash bootloader has to be edited. If mistaken, the Kobo stops booting forever. It's chip is welded to the board, we cant directly write to it. Perhaps there's a way using the board's debug headers. So, in order to do this we must risk bricking a Kobo and invest many hours.
Sign in to join this conversation.
No Label
No Milestone
No Assignees
1 Participants
Notifications
Due Date
The due date is invalid or out of range. Please use the format 'yyyy-mm-dd'.

No due date set.

Dependencies

No dependencies set.

Reference: ADHOC/okreader#7
No description provided.