部分4530刷Openwrt砖的可能原因及修复

mrltr

用楼主的方法通电再插不好使啊，倒是把tx和rx反接会有显示，不过前半部分显示乱码，后半部分显示，不知道怎么弄了，在坛子里卖了？
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                               [    0.460000] console [ttyS0] enabled, bootconsole disabled
[    0.460000] console [ttyS0] enabled, bootconsole disabled
[    0.480000] m25p80 spi0.0: unrecognized JEDEC id 1c3017
[    0.610000] ag71xx_mdio: probed
[    0.620000] eth0: Atheros AG71xx at 0xb9000000, irq 4
[    1.190000] eth0: Atheros AR8327 switch driver attached.
[    1.340000] ag71xx ag71xx.0: eth0: connected to PHY at ag71xx-mdio.0:00 [uid=004dd033, driver=Atheros AR8216/AR8236/AR8316]
[    1.360000] TCP westwood registered
[    1.360000] NET: Registered protocol family 17
[    1.360000] 8021q: 802.1Q VLAN Support v1.8
[    1.370000] VFS: Cannot open root device "(null)" or unknown-block(0,0)
[    1.380000] Please append a correct "root=" boot option; here are the available partitions:
[    1.380000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)