网件 WNDR3700 V4 维修求助 大神指点

big_***

如题一个 WNDR3700 V4  硬件配置就不说了，网上裸图一堆，故障现象：
1.接LAN口无反应，




2.上电如下图灯常亮，间歇闪动



3.接ttl  提示信息如下，反复滚屏 无法启动

find_hif: bootstrap = 0x2f055b
WASP BootROM Ver. 1.1
Nand Flash init
ONFI: Control setting = 0xb44
hdr: [0xbd004000 : 0xbd004000 : 0x3000 : 0xc200e86c]
nand_load_fw: read 6 pages
nand_load_fw: 0x10000 0x800 0xbd0047f0
nand_load_fw: 0x20000 0x800 0xbd004ff0
nand_load_fw: 0x30000 0x800 0xbd0057f0
nand_load_fw: 0x40000 0x800 0xbd005ff0
nand_load_fw: 0x50000 0x800 0xbd0067f0
f/w 0 read complete, jumping to 0xbd004000
initialize PLL & DDR
sri
Wasp 1.2
Wasp (16bit) ddr1 init
setting for 40
fw1: Nand Init
leave FW1
f/w 0 execution complete
hdr: [0xa0100000 : 0xa0100000 : 0x11000 : 0xddfcece7]
nand_load_fw: read 34 pages
nand_load_fw: 0x70000 0x800 0xa01007f0
nand_load_fw: 0x80000 0x800 0xa0100ff0
nand_load_fw: 0x90000 0x800 0xa01017f0
nand_load_fw: 0xa0000 0x800 0xa0101ff0
nand_load_fw: 0xb0000 0x800 0xa01027f0
nand_load_fw: 0xc0000 0x800 0xa0102ff0
nand_load_fw: 0xd0000 0x800 0xa01037f0
nand_load_fw: 0xe0000 0x800 0xa0103ff0
nand_load_fw: 0xf0000 0x800 0xa01047f0
nand_load_fw: 0x100000 0x800 0xa0104ff0
nand_load_fw: 0x110000 0x800 0xa01057f0
nand_load_fw: 0x120000 0x800 0xa0105ff0
nand_load_fw: 0x130000 0x800 0xa01067f0
nand_load_fw: 0x140000 0x800 0xa0106ff0
nand_load_fw: 0x150000 0x800 0xa01077f0
nand_load_fw: 0x160000 0x800 0xa0107ff0
nand_load_fw: 0x170000 0x800 0xa01087f0
nand_load_fw: 0x180000 0x800 0xa0108ff0
nand_load_fw: 0x190000 0x800 0xa01097f0
nand_load_fw: 0x1a0000 0x800 0xa0109ff0
nand_load_fw: 0x1b0000 0x800 0xa010a7f0
nand_load_fw: 0x1c0000 0x800 0xa010aff0
nand_load_fw: 0x1d0000 0x800 0xa010b7f0
nand_load_fw: 0x1e0000 0x800 0xa010bff0
nand_load_fw: 0x1f0000 0x800 0xa010c7f0
nand_load_fw: 0x200000 0x800 0xa010cff0
nand_load_fw: 0x210000 0x800 0xa010d7f0
nand_load_fw: 0x220000 0x800 0xa010dff0
nand_load_fw: 0x230000 0x800 0xa010e7f0
nand_load_fw: 0x240000 0x800 0xa010eff0
nand_load_fw: 0x250000 0x800 0xa010f7f0
nand_load_fw: 0x260000 0x800 0xa010fff0
nand_load_fw: 0x270000 0x800 0xa01107f0
Checksum mismatch. 0xddfcece7 != 0x1e4bef0d
find_hif: bootstrap = 0x2f055b
WASP BootROM Ver. 1.1
Nand Flash init
ONFI: Control setting = 0xb44
hdr: [0xbd004000 : 0xbd004000 : 0x3000 : 0xc200e86c]
nand_load_fw: read 6 pages
nand_load_fw: 0x10000 0x800 0xbd0047f0
nand_load_fw: 0x20000 0x800 0xbd004ff0
nand_load_fw: 0x30000 0x800 0xbd0057f0
nand_load_fw: 0x40000 0x800 0xbd005ff0
nand_load_fw: 0x50000 0x800 0xbd0067f0
f/w 0 read complete, jumping to 0xbd004000
initialize PLL & DDR
sri
Wasp 1.2
Wasp (16bit) ddr1 init
setting for 40
fw1: Nand Init
leave FW1
f/w 0 execution complete
hdr: [0xa0100000 : 0xa0100000 : 0x11000 : 0xddfcece7]
nand_load_fw: read 34 pages
nand_load_fw: 0x70000 0x800 0xa01007f0
nand_load_fw: 0x80000 0x800 0xa0100ff0
nand_load_fw: 0x90000 0x800 0xa01017f0
nand_load_fw: 0xa0000 0x800 0xa0101ff0
nand_load_fw: 0xb0000 0x800 0xa01027f0
nand_load_fw: 0xc0000 0x800 0xa0102ff0
nand_load_fw: 0xd0000 0x800 0xa01037f0
nand_load_fw: 0xe0000 0x800 0xa0103ff0
nand_load_fw: 0xf0000 0x800 0xa01047f0
nand_load_fw: 0x100000 0x800 0xa0104ff0
nand_load_fw: 0x110000 0x800 0xa01057f0
nand_load_fw: 0x120000 0x800 0xa0105ff0
nand_load_fw: 0x130000 0x800 0xa01067f0
nand_load_fw: 0x140000 0x800 0xa0106ff0
nand_load_fw: 0x150000 0x800 0xa01077f0
nand_load_fw: 0x160000 0x800 0xa0107ff0
nand_load_fw: 0x170000 0x800 0xa01087f0
nand_load_fw: 0x180000 0x800 0xa0108ff0
nand_load_fw: 0x190000 0x800 0xa01097f0
nand_load_fw: 0x1a0000 0x800 0xa0109ff0
nand_load_fw: 0x1b0000 0x800 0xa010a7f0
nand_load_fw: 0x1c0000 0x800 0xa010aff0
nand_load_fw: 0x1d0000 0x800 0xa010b7f0
nand_load_fw: 0x1e0000 0x800 0xa010bff0
nand_load_fw: 0x1f0000 0x800 0xa010c7f0
nand_load_fw: 0x200000 0x800 0xa010cff0
nand_load_fw: 0x210000 0x800 0xa010d7f0
nand_load_fw: 0x220000 0x800 0xa010dff0
nand_load_fw: 0x230000 0x800 0xa010e7f0
nand_load_fw: 0x240000 0x800 0xa010eff0
nand_load_fw: 0x250000 0x800 0xa010f7f0
nand_load_fw: 0x260000 0x800 0xa010fff0
nand_load_fw: 0x270000 0x800 0xa01107f0
Checksum mismatch. 0xddfcece7 != 0x302815b4

4.尝试用 恩山 hackpascal  大神的  3700  breed 救砖恢复   加上 SPI flash 直接死机
https://www.right.com.cn/forum/thread-170402-1-1.html




5.本人编程基本小白，也第一次接触大A的CPU，只觉得故障和nand  flash 有关，但不知道ttl信息什么意思，也无法判断故障大概出在那部分，望大神指点 帮忙
另外说下：AR9344已加焊故障依旧，AR8327已换过故障依旧     8.15换了内存故障依旧

freez***

个人建议： ddwrt 去找 wndr3700 救援模式 刷回原厂固件 在决定下一步怎么处理

big_***

哎  郁闷 到吐血了....

hackpascal  大神在吗 给些提示吧

big_***

freezehell 发表于 2015-8-14 09:04
个人建议： ddwrt 去找 wndr3700 救援模式 刷回原厂固件 在决定下一步怎么处理

都这样了 进不了救援模式

gfq524***

nand坏了吧  读数据出错

刀锋20***

上拉电阻焊了吗

未来***

CRC验证失败，大概率是nand有坏道，只能换nand了

immuli***

40块吧？直接丢掉