Bricked LE40C550! Please help!

[juusso]

Changing partitions like you did does not affect to usb hack. It should work.

How about to get to TDM ? load USB drivers?

[juusso]

use fat32.

[juusso]

Nothing... just might with channel import to switch to previous firmware back. Might script is not executing becouse of activated alternative firmware. I doubt, but who knows.

Is here possible to export/import channels from USB?(menu-dishes-channel settings or smth like that) Export channel list please and upload here to forum. (i hope here is enough time to do that...)
My idea is to switch back to PartitionSwitch_0_0 and if you get script wrking next step is to flash your rootfs back.
I don`t know why don`t you get to TDM, and don`t have any other advice.

[juusso]

Yes, if you don`t want to restore your rootfs, because of unpredictable work of script, then yes, Service only. It is exact what i would tell if i had same situation

just in case:

Code: Select all

!#/bin/sh
/util/frestore -s /dev/bml0/7 /dtv/usb/sda1/rootfs.img
sync
echo "done" >> /dtv/usb/sda1/logfile

(where bml0/7 is your rootfs - i`m not sure which it is on your tv)

How did you do your dump of rootfs? what command have you use?

[juusso]

Just for information, where did I go wrong?

You don`t noticed, that if you modify any read only partition, the hash changes. Hashes are stored on TV also and monitored by some bunary called authuld. After you flashed changed rootfs, hashes become nonidentical to stored ones and TV started to reboot.

So you have to calculate hashes first and write it to right places on TV. It is samsung`s called Secure boot...

Same is for:
u-boot, kernel, rootfs, boot, exe and appdata partitions.

Not so easy, right?