DB410C cannot boot on and fastboot after flashing bootloader


#1

Hi,

I flashed my db410c with dragonboard-410c-bootloader-emmc-aosp-97 and some errors occurred during the process.

target reported max download size of 268435456 bytes
sending ‘partition’ (33 KB)…
OKAY [ 0.005s]
writing ‘partition’…
OKAY [ 0.807s]
finished. total time: 0.811s
target reported max download size of 268435456 bytes
sending ‘hyp’ (60 KB)…
OKAY [ 0.005s]
writing ‘hyp’…
OKAY [ 0.009s]
finished. total time: 0.014s
target reported max download size of 268435456 bytes
sending ‘modem’ (15089 KB)…
FAILED (data transfer failure (Protocol error))
finished. total time: 0.038s
sending ‘rpm’ (151 KB)…
FAILED (command write failed (Bad file descriptor))
finished. total time: 0.000s
sending ‘sbl1’ (252 KB)…
FAILED (command write failed (Bad file descriptor))
finished. total time: 0.000s
sending ‘tz’ (587 KB)…
FAILED (command write failed (Bad file descriptor))
finished. total time: 0.000s
< waiting for device >
target reported max download size of 268435456 bytes
sending ‘aboot’ (533 KB)…
FAILED (data transfer failure (Protocol error))
finished. total time: 0.013s
sending ‘cdt’ (0 KB)…
FAILED (command write failed (Bad file descriptor))
finished. total time: 0.000s
< waiting for device >

After that, my db410c cannot boot on and fastboot…

Any ideas?


#2

i can’t really tell you why it failed, looks like you’ve hit some USB issues when flashing the board. At this point, the board is bricked, and the only option is to follow the SD card recovery method:

With the SD rescue card, you should be able to reflash the bootloader package. I recommend to check your USB cable, and also avoid using USB hub. Hopefully flashing over USB will work next time.


#3

Thank you! It works!


#4

HI ,
Note : I may bricked my board so used Rescue image to get into fastboot mode.
I am able to boot the board to Fastboot mode using SD Rescue image (dragonboard410c_sdcard_rescue-88.zip)
I have downloaded the image from the below path
https://releases.linaro.org/96boards/dragonboard410c/linaro/rescue/latest/

Bootloader images(dragonboard410c_bootloader_emmc_android-88.zip) also downloaded from the same above path:

I flashed the image to uSD card and booted the board(Pin Config : 0100) to fastboot mode .
when I tried to flash the images to the eMMC , facing below issue.
fastboot flash partition gpt_both0.bin : PASS
fastboot flash hyp hyp.mbn
sending ‘hyp’ (56 KB)…
OKAY [ 0.006s]
writing ‘hyp’…
FAILED (remote: partition table doesn’t exist)
finished. total time: 0.013s
Same error I am getting for the other partitions flashing also.
Please help me whether I am using the correct bootloader or not ?
Any pointers will be very helpful

Note : I have downloaded the remaining images (recovery , System ,Cache etc) from the below path and planing to flash the same.