WR941N V5.1开机不到15秒灯全灭

chengfang735

换闪存的时候吹跑了无线灯上的电阻，拨正后发现灯是微亮的，测试上面的电阻是250欧，250欧，10K欧，正常的应该是10K欧，250欧，250欧才对，可是调换后还是老样子，无语了，不知道哪里还有问题了。
接上TTL线可以看到下面的东西，不懂这个

U-Boot 1.1.3 (Feb 13 2009 - 10:05:04)

Board: Ralink APSoC DRAM:  16 MB
relocate_code Pointer at: 80fac000
flash_protect ON: from 0xBF000000 to 0xBF01FFAF
protect on 0
protect on 1
protect on 2
protect on 3
protect on 4
flash_protect ON: from 0xBF030000 to 0xBF03FFFF
protect on 6
*** Warning - bad CRC, using default environment

============================================
Ralink UBoot Version: 3.2
--------------------------------------------
ASIC 3052_MP2 (Port5<->None)
DRAM COMPONENT: 128Mbits
DRAM BUS: 16BIT
Total memory: 16 MBytes
Date:Feb 13 2009  Time:10:05:04
============================================
icache: sets:128, ways:4, linesz:32 ,total:16384
dcache: sets:128, ways:4, linesz:32 ,total:16384

##### The CPU freq = 320 MHZ ####

SDRAM bus set to 16 bit
SDRAM size =16 Mbytes

Please choose the operation:
   1: Load system code to SDRAM via TFTP.
   2: Load system code then write to Flash via TFTP.
   3: Boot system code via Flash (default).
   4: Entr boot command line interface.
   9: Load Boot Loader code then write to Flash via TFTP.
0

3: System Boot system code via Flash.
## Booting image at bf050000 ...
   Image Name:   linkn_16MB_2MB Kernel Image
   Created:      2009-02-23  18:43:36 UTC

System Control Status = 0x00400000
   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    1657372 Bytes =  1.6 MB
   Load Address: 80000000
   Entry Point:  80263000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 80263000) ...
## Giving linux memsize in MB, 16

Starting kernel ...


LINUX started...

THIS IS ASIC
init started: BusyBox v1.12.1 (2009-02-24 02:38:40 CST)
starting pid 11, tty '': '/etc_ro/rcS'
mount: mounting none on /proc/bus/usb failed: No such file or directory
Welcome to
     _______  _______  ___     __  ____   _  _   ___
    |  ___  \|   __  ||   |   |__||    \ | || | /  /
    | |___| ||  |__| ||   |__  __ |     \| || |/  /
    |   _   /|   _   ||      ||  || |\     ||     \
    |__| \__\|__| |__||______||__||_| \____||_|\___\

                     =System Architecture Department=



Yes:

      ****** WeLoveLinux ******

Welcome to ...
httpd Reg gpio hook success .
starting pid 20, tty '/dev/ttyS1': '/bin/sh'


BusyBox v1.12.1 (2009-02-24 02:38:40 CST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

# getIfLive: device eth2.1 not found.
Commit crc = 5dc0bc39
maclist:
WLan[C8:3A:35:3F:CA:60]
Lan[C8:3A:35:3F:CA:60]
Wan[C8:3A:35:3F:CA:65]
getIfLive: device br0 not found.
Router ip address config success.
libupnp: using UDP SSDP_PORT = 1900
killall: udhcpd: no process killed
ND -> Bad_Sig_entry [18]...
httpd listen ip = 192.168.0.1 port = 80
MfgThread start loop.
TendaLog -> ok rtn.
InitWan:
wan_type: 2
ppp_conn_type:0
ppp_conn_wait_time: 60
ppp_conn_start_min: 0
ppp_conn_end_min: 0
Plugin /etc_ro/ppp/plugins/rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8 compiled against pppd 2.4.4
Plugin init ok.
discovery -> entry .
discovery -> openInterface success. ifName[eth2.2]
discovery -> padiAttempts [1]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [2]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [3]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [4]
pppoe: Timeout waiting for PADO packets
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [1]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [2]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [3]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [4]
pppoe: Timeout waiting for PADO packets
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [1]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [2]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [3]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [4]
pppoe: Timeout waiting for PADO packets
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [1]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [2]
discovery -> sendPADI entry
discovery -> sendPADI return .
discovery -> padiAttempts [3]
discovery -> sendPADI entry
discovery -> sendPADI return .
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zhujun77

唉，就这几个脚还弄这样，还有风枪，先拿废板练练。注意是否有短路 短路，贴片电阻是否有丢？如果没有，可能闪存数据有错误 软件版本不对，要重刷，或者闪存坏

chengfang735

原来是闪存挂了，重新焊上一个可以了，可新的 问题又来了，PING不通，进不去界面，还有灯的负极的焊盘也没了，求飞线，

a291899192

怎么是Ralink UBoot   941V5不是ar的U吗

chengfang735

上次也是刷UBNT RM2 941-v4的这个固件来着，能用呀

chengfang735

a291899192 发表于 2014-7-11 16:27
怎么是Ralink UBoot   941V5不是ar的U吗

闪存挂了~~~~~~~~

chengfang735

wjdz777 发表于 2014-7-11 16:30
刚刚换了941nv5的闪存。一般娄铁一下就拿下来了。找找拆机图。对照下。看看有没有少件了.固件刷对了吗..

顺便帮我量下上面三个电阻的阻值

在乎

闪存都能吹挂，看来以后要小心了

chengfang735

在乎 发表于 2014-7-11 19:47
闪存都能吹挂，看来以后要小心了

那倒不是，

鬼迷了心窍

{:soso_e103:}拆闪存需要用热风枪？要用也不能用太大风呀无语...固件有问题也会微亮。

hfsp

我用烙铁拆的闪存，由于原来的编程器对SPI闪存支持不好，不知焊上拆上多少次了，后来不小心把R244、R247搞掉了，楼主你修好没？如果没装上麻烦你帮我测量下此两电阻阻值，谢谢！

chengfang735

hfsp 发表于 2014-11-18 21:18
我用烙铁拆的闪存，由于原来的编程器对SPI闪存支持不好，不知焊上拆上多少次了，后来不小心把R244、R247搞 ...

老早就修好了，不过没看到你所说的两个电阻在哪