DM900 red light

Posted by: slavekpl

DM900 red light - 03/17/24 03:42 PM

Hello.

I have a problem with my DM 900.
The problem is described as "DM900 red light" - only the power and LAN LEDs are lit in red.

No possibility to enter recovery, no LAN communication.

The only communication is via the service connector and reading via putty.

I tried resuscitation via OptiFlsher, but I can't do anything without activating the software, and the project is probably dead.
Do you have an idea for reviving the box?

JapharFlasher not comunication on COM3

Quote:
CPU 01
Dreambox DM900
AVS init...
AVS init OK
AVS load:select_image: addr_offset: 00051000 part_offset: 00000000 bootStatus: 2a002b00
AVS load_code offset =00051000
LOADED
AVS: overtemp mon ON

single board
select_image: addr_offset: 00055000 part_offset: 00000000 bootStatus: 3d2b2500
MEMSYS-STD
SHMOO 02010000 BLD:11138M HW:hpf0_b1p6 V:2.1.0.0
MCB: FLEX
AVS start:status=000000ff
STB: Current voltage=00000386(902)
temperature=0000c015(49173)
PV=00000349(841)
MV=00000387(903)
AVS FW rev=30333278 [0.3.2.x]
OK
DDR0: !@ ffe0e780 <= ffe0df10 MEMSYS-0 @ f1100000 OK
DDR1: =@ ffe0e780 <= ffe0df10 MEMSYS-1 @ f1180000
MEMSYS ERROR: 00000001

eMEMC:
00000000
ePHY: 00000000
eSHMOO: 10000000 00000082 00000000
CPU 01
Dreambox DM900
AVS init...
AVS init OK
AVS load:select_image: addr_offset: 00051000 part_offset: 00000000 bootStatus: 2a2f2b00
AVS load_code offset =00051000
LOADED
AVS: overtemp mon ON

single board
MEMSYS:0000002f
FATAL ERROR: Boot 2nd image failed
Posted by: Johnny_B

Re: DM900 red light - 03/17/24 10:42 PM

I probably can't help you with it because, Searching to..

eMEMC:
00000000
ePHY: 00000000
eSHMOO: 10000000 00000082 00000000
CPU 01

Or Searching to..
MEMSYS:0000002f
FATAL ERROR: Boot 2nd image failed


Than this is a difficult issue which are more common and often is unsolvable but In some cases this may work,
Putty in Serial mode....
Change the serial mode Bps to Bps 9600 and press the CTRL/C buttons on your keyboard, and switch on the box.
When that's working than you hopefully get into BOLT mode which gives you the possibility to flash the rescue-dm900.bin file via usb with the following command.
BOLT> show devices
BOLT> dir usbdisk0
BOLT> boot usbdisk0:/rescue-dm900.bin
Notes that the rescue-dm900.bin file must be present on the usb stick.
You may find the file on dreamboxupdate dot com.
And take the newest one.

But it may also be a hardware issue.

DDR0: !@ ffe0e780 <= ffe0df10 MEMSYS-0 @ f1100000 OK
DDR1: =@ ffe0e780 <= ffe0df10 MEMSYS-1 @ f1180000
MEMSYS ERROR: 00000001

as a bad memory block.