Salutare tuturor,
de curând am achizitionat acest tip de receptor la care am dorit sa-i fac update de firmware.
Din pacate, in urma acestui update, receptorul nu mai doreste sa-si incarce imaginea, ramanand la statusul de "Loading".
Am cautat pe Internet vreo metoda ca sa-l fac sa mearga, dar toate se refereau la repararea prin utilizarea stick-ului pe USB.
Din cate observ, la acest receptor, in bootloader, au fost scoase de catre producator toate optiunile de initializare prin USB sau LAN, doar initializarea interna de pe memoria flash fiind activa.
Memoria flash este de tipul NAND de 64MB (NAND512), iar pentru ea nu gasesc nici un fel de programator. Procesorul este un PNX8335, iar pentru acesta nu exista "la liber" vreun JTAG...
Am rugamintea daca poate ma ajuta careva dintre voi cu ceva hint ca tare as repara acest receptor....

Multumesc

Pentru exemplificare am atasat logul de boot.
--------------------------------------------------------------------
-- Generic Primary Bootloader 88.88-8888, NI (10:14:27, Jul 6 2010)
-- Andre McCurdy, NXP Semiconductors
--------------------------------------------------------------------
Device: PNX8335 M1
Secure boot: disabled, keysel: 0, vid: 0 (expecting 2)
Poly10: 0x00000000
RNG: enabled
RSA keyhide: enabled
UID: 0000000000000000
AES key: 00000000000000000000000000000000
KC status: 0x00000000
Flash config: 7 (omni: 8bit NAND), timing: 0x0C
CPU clock: 320 MHz
SIF0: 512 cols x 8192 rows: 64 MBytes
SIF1: 512 cols x 8192 rows: 64 MBytes
DRAM: 200 MHz, 2 x 64 512, blocksize 16k, 64 MBytes
NAND 0x00020000: valid header
NAND 0x00020000: valid image
aboot exec time: 230683 uSec


U-Boot 1.2.0.0425_a (Secondary Bootloader) (May 17 2011 - 11:57:03)

In function: checkboard

LLoAd
CPU: PNX
Secure boot: disabled
DRAM: 128 MB
NAND: nCS0 (force asserted legacy mode)
NAND: ST Micro 64MiB 3,3V 8-bit
NAND 0x00c5c000: bad block
Net: ip3902
Board Opts: EthOsc SCART HDMI 720P
Splash: Splash: Scaling 1280x720 -> 720x720
done
u-boot startup time so far: 1800 msec

Boot mode is :

Loading from 64MiB 3,3V 8-bit, offset 0x1020000
ting image at 80800100 ...
Image Name: Linux Kernel Image
Image Type: MIPS Linux Kernel Image (gzip compressed)
Data Size: 1474379 Bytes = 1.4 MB
Load Address: 80001000
Entry Point: 802b6190
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK

Starting kernel ...