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Old 02-23-2019, 11:26 AM   #9
tonyyng
Enthusiast
tonyyng began at the beginning.
 
Posts: 46
Karma: 10
Join Date: Jan 2019
Device: none
One other thing I tried was to put the device into firmware update mode. This is what Kobo Desktop prompts you to do before it attempts to write an update to the device through the usb port.

To do this, you power on holding Power/Menu/DPAD and the device boots with the LED red.

Here is the serial output:

Code:
U-Boot 1.1.4 (Mar  9 2010 - 16:28:25)
U-Boot code: 33F80000 -> 00000000  BSS: -> 33FAB5F4
SDRAM: 64 MB
io_check_em:  -1
***************init GPIO : set GPD13 to high
NAND device ID: [0xd3ec] [Samsun K9K8G08]
NAND Total Blocks=8192 <5>
nand_read_ecc: Attempt read beyond end of device 30000 10000 0
*** Warning - bad CRC or NAND, using default environment
io_check_em:  -1
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
TransferByDMA len=240000
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
TransferByDMA len=240000
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
TransferByDMA len=240000
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
io_check_em:  -1
PowerCheck:eb600em cost down
Battry only!!!
Battery voltage more than 3.3V!!!
USB device init ....chip_id:[0x00158230]..done.
USB information[ISP's USBD]: EP0: control, EP1: in, EP3: out
should perform loadu
IspHandle......................PHPDC_IE_SUSP
What the Desktop software does with the device in this state is described in this post:

Quote:
Originally Posted by mTamblyn
It’s doing three things: First it copies the boot firmware, then the kernel. They get updated in the first 30 seconds. Then the application gets transferred over.
This isn't enough information for me to know what to do next, but maybe gives one of you experts some ideas of what else I could try.

Thanks
tonyyng is offline   Reply With Quote