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Re: LN40B630 Help Bricked... in trouble with parents :(
Posted: Sun Nov 07, 2010 1:08 pm
by juusso
If here is an alternative firmware on partitions 10 and 11 then you could switch to.
1. Do you have working u-boot? (enter to bootloader by pressing ~ )
2. Are you able to enter console from ex-link?
If you say "Yes" to just one or to both questions, you be able to restore your TV.
Re: LN40B630 Help Bricked... in trouble with parents :(
Posted: Sat Nov 13, 2010 8:13 pm
by juusso
go to console and execute this command:
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touch /mtd_rwarea/PartitionSwitch_0_0
After reboot tv should use 1st partition to boot. (it helps, if here was an alternative firmware before). If this does not help, then here is another, more difficult way. You need to boot TV from external source (USB disk or from tftp). Kernel you need is your tbml5`th dump with some corrections with help of mkimage.
Read this topic, you have to make not all steps, adapt your situation. Your rootfs can be used original TVs rootfs - /dev/bml0/6, just you need to put correct command to bootloader.
Added:
It looks like TV searches for USB with firmware to upgrade:
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no sub SW image...try to upgrade
Boot USB Driver Upload ...
USB module is already inserted
USB detection time: 1-12 sec.
1
2
3
4
5
6
7
8
9
10
11
default path - /dtv/usb/sda
sda path : [sda]
No USB is found...Shutdown
Download firmware for your tv, prepare USB for upgrading and attach to TV. Power on TV and give us the debug log. It`s possible, that tv will start to upgrade firmware procedure
Re: LN40B630 Help Bricked... in trouble with parents :(
Posted: Sun Nov 14, 2010 7:19 am
by juusso
You said, you can ge in to u-boot menu and to serial console via TOP debug menu (after debug + 1198282 and ctrl+c)?
If yes, you do not need boot external kernel (OE), because OE kernel does not have function for writing to NAND, it will not help (i can confirm, i tried to restore bricked tv, w/o success). If you get to serial console, im repeating my self, you have to create flag file to let system boot from alternative partitions:
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touch /mtd_rwarea/PartitionSwitch_0_0
Re: LN40B630 Help Bricked... in trouble with parents :(
Posted: Sun Nov 14, 2010 7:44 am
by juusso
flipper420 wrote:
LEONID # setenv ipaddr 192.168.137.2;setenv gatewayip 192.168.137.1;setenv serverip 192.168.137.1;setenv bootargs root=/dev/tbml6/
You are lucky, that u-boot works. You will 100% restore your tv!
How about this?Here is no setenv for rootf, it wil be used by default, TVs rootfs. Execute from LEONID>:
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setenv ipaddr 192.168.137.2;setenv gatewayip 192.168.137.1;setenv serverip 192.168.137.1;tftp;bootm
It this does not work, you have to prepare USB flash disk ext3 formatted with rootfs from open embedded. and boot kernel from tftp but rootfs from usb like is
written on wiki.
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setenv ipaddr 192.168.137.2;setenv gatewayip 192.168.137.1;setenv serverip 192.168.137.1; setenv bootargs root=/dev/sda2 console=ttyS1;tftp;bootm
In this case you have to make USB flash disk with two partitions. The first partition fat32, the second ext3. Do not worry, that your USB does not work when TV is in normal boot procedure. Here you have another, rescue boot and please try to attach USB with rootfs on it. We can ask here for kernel not from OE, but dump of dev/bml0/5 of similar TV like yours to boot it from tftp and in this case you get bml.restore function working.
Another way, can you confirm, that you able get to serial console in TOP debug menu? If yes,
use this info.