TCL AM6C机芯不能进入命令行模式 求帮忙

错觉

一台TCL 32A71C AM6C机芯的   主板坏   找来一个主板 上机灰屏  平不对   重刷主程序依旧    串口调屏参 进入不了命令行  求助 ！
按住回车 Sec打印始终卡在最后一句。Starting kernel ...   VGA走的串口 刷机时打印很多。求助  谢谢了



boot Last Build:Fri Aug  8 16:23:08 CST 2014
uboot Builer Name:wenhua.song

pao_reg0 = 6b730001 ,pao_reg1 = 0 pao_reg2=0
----bootargs equal---------
switch_boot_mode
reboot_mode_current = 0x0
suspend flag = off

MMC read: dev # 1, block # 10240, count 512 ... 512 blocks read: OK
efuse version is not selected.
Hit any key to stop autoboot:  0
Device: SDIO Port C
Manufacturer ID: 0
OEM: 0
Name: Tran Speed: 50000000
Rd Block Len: 512
MMC version 4.0
High Capacity: Yes
Capacity: 3959422976
Boot Part Size: 2097152
Bus Width: 4-bit

MMC read: dev # 1, block # 16384, count 2048 ... 2048 blocks read: OK
Video initializing...
osd_layer_init
frame buffer address is 0x84100000
video size is 1920 X 1080
video bbp is 32
start free scaler
----free_scale_mode --1-----
freescaler end
pwm reg ---> 0x4130120
emmc save env ok

MMC read: dev # 1, block # 49152, count 16384 ... 16384 blocks read: OK
power on to now time: 0x3d80a2
## Booting kernel from Legacy Image at 82000000 ...
   Image Name:   Linux-3.0.8+
   Image Type:   ARM Linux Kernel Image (lzo compressed)
   Data Size:    7083563 Bytes = 6.8 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
power on to start kernel: 0x43235d
bootm start to prepare boot kernel time:369340us
from main_loop start to kernel decompress finished time:2435536us
machid from environment: 0x1124
EFUSE machid is not set.
Using machid 0x1124 from environment

Starting kernel ...

错觉

继续等啊！

ghhj

重抄一下BOOT

ghhj

不能进入说明系统有问题，