求大神们帮我看看B700V2A哪里出了问题

绝对淋度

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我的B700V2A在降级后成砖了，本来降级时都提示升级成功。自己动重启，可重启后画面进入100%时，电视屏幕就显示无信号，关机顶盒再开屏幕也没点高，现在只有运行灯亮绿灯，网线插上灯也不亮，用TTL连接出来的数据，求大神们帮我看看问题出在哪里，要怎么解决。

0 R4 `1 n/ v* B! JCPU: STx7105  [32-bit mode]
Board: B700V2A_F128 Ver:0x0c
U-Boot 1.3.1 (Oct 20 2010 - 02:02:36) - stm23-2009-06-29
DRAM:  256 MiB
NAND:  128 MiB
In:    serial
/ ~* B: P+ E  Q  j% z+ aOut:   serial
Err:   serial
$ l5 W, S3 r/ ]. ^8 I" U) ZHit any key to stop autoboot:  0
rf output 0
mac_addr = 00:07:67:CE:3D:1D
Found kernel head at 0x100000
Found safety image at 0x00100000
------------------------------
        Partition Name: sk
        Partition Size: 0x003544bf
( G  c' P. ^* E1 D        Load address:   0x00000000
, Y: N: M0 R% v" l        Entry point:    0x00000000
        Version:        V704015 2012-04-24
7 ?6 q' P8 N# V& n        CRC:            0xd9be0000
        Reserver1:      0x00000064
9 \1 d( d6 z  |% W* V        Reserver2:      0x00000000
------------------------------
+ f9 J% e' v+ Z6 v! X9 ?9 rker_safe_start = 0x100000  ker_safe_len = 0x3544bf
entry = 0x0  load = 0x81c00000
Load 0x003544bf bytes safety image from 0x00100060 to 0x81c00000......used 1193 ms, 2857 KBps
' j& Z6 I6 Z  Z' e. B0 T/ cntohl(zhead.ih_size) = 0x19bce8  sizeof(image_header_t) =0x40
uImageAddr = 0x100060  initrd_addr =0x81d9bd28 initrd_len = 0x1b8797
## Booting image at 81c00000 ...
: p. I6 l! S8 k   Image Name:   Linux-2.6.23.17_stm23_A18B-pdk71
   Image Type:   SuperH Linux Kernel Image (gzip compressed)
   Data Size:    1686760 Bytes =   1.6 MiB
   Load Address: 80800000
4 Z5 d2 ]5 M3 r* D( s; W; j% ?   Entry Point:  80801000
   Verifying Checksum ... OK
( t! M7 f2 k$ x" B   Uncompressing Kernel Image ... (used 369 ms) OK
0 d3 H! d4 {* H" r7 }# C0 }# jStarting kernel console=ttyAS0,115200 root=/dev/ram rootfstype=ext2 rw initrd=0x81d9bd28,0x1b8797 nwhwconf=device:eth0,hwaddr:00:07:67:CE:3D:1D ip=192.168.1.12:192.168.1.8/B700:0.0.0.0:255.255.0.0:STB:eth0:off mem=100M bigphysarea=4000 dispmode=p dbglevel=1 enableconsole=1  boardtype=12  - 0x01d9bd28 - 1804183 ...
boot_time=1939 ms
Starting Kernel ...
init started:  BusyBox v1.2.1 (2010.11.13-13:21+0000) multi-call binary
Starting pid 317, console /dev/console: '/etc/rc.d/rcS'
Starting udevd...
ERROR-VER:NOT version file can be open at Get!
9 H; R/ o& S: c* ?' y0 K2 \; AWrite version info:VERSION=StbCfg:v5.53(v5.53.04) 2012-02-14
Starting pid 722, console /dev/ttyAS0: '/bin/sh'
2 {* K. N! l" j- G* V# M" u& ZcoreUpdate.c[main][1417]:coreup version is :V6.0.03 2011-12-22

3 h' G- B2 a' x9 Y: {BusyBox v1.2.1 (2010.11.13-13:21+0000) Built-in shell (ash)
6 S# H* K4 x& s& g: n* F$ Z8 u& V; zEnter 'help' for a list of built-in commands.
. ]) `" e7 ~6 d3 J/ # ERROR-CFG-[AddTKey]-key's number over MAX_KEY_NUM(256)
1 W4 b; {) [0 \9 Z7 v4 qERROR-CFG-[WriteShmFromBuf]-[AddTKey]
) i+ m+ P6 G, U% D+ }ERROR-CFG-[LoadConfig]-[WriteShmFromBuf]
coreUpdate.c[main][1459]:LoadConfig failed!
ERROR-CFG-[AddTKey]-key's number over MAX_KEY_NUM(256)
ERROR-CFG-[WriteShmFromBuf]-[AddTKey]
ERROR-CFG-[LoadConfig]-[WriteShmFromBuf]
  d: P) G! U: f0 ^$ e: z[warning] RemoteSetCfg: LoadConfig failed!
% f6 h8 m& O9 c9 ^

hgwell

可怜的娃，比我还惨。我的是开机的时候断了网，估计电信后台升级，然后就变砖了，有个开机画面，再也不动。准备自己调教调教。不行就当砖了。