kindle paper white 2 (kpw) 无限重启救砖方法
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拆机
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拆下屏幕11颗螺丝,中间那颗要戳破双面胶才能看
拧下11颗螺丝以后就可以取出屏幕/主板取的时候注意usb充电口和开机按钮是在背板下方的孔里突出,而整块板子是凹陷在背板里的。
所以是先【撬起板子顶部】,【往上拉一下】,使usb充电口和开机按钮暴露出来,再取出整块板子。否则会卡在按钮那里。
11个螺丝位置。如下图
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拆下电池,3颗螺丝
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连接串口线-电脑,安装驱动
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下载串口线驱动
安装驱动。
打开设备管理器,找到com端口号,设置位率115200
记下端口号
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打开串口调试软件,设置端口号与设备管理器的一致
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开机,进uboot,复制rom到kindle
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base - print or set address offset
bist - start Built In Self Test
boot - boot default, i.e., run 'bootcmd'
bootd - boot default, i.e., run 'bootcmd'
bootm - boot application image from memory
coninfo - print console devices and information
go - start application at address 'addr'
idme - idme - Set nv ram variables
loop - infinite loop on address range
mm - memory modify (auto-incrementing address)
mtest - simple RAM read/write test
nm - memory modify (constant address)
printenv- print environment variables
reset - Perform RESET of the CPU
run - run commands in an environment variable
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## Booting kernel from Legacy Image at 80800000 ...
Image Name: Linux-3.0.35-lab126
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 2420536 Bytes = 2.3 MB
MainTest:exeTest Set CPU to faster speed
system_diags[MainTest] 1 INFO : Start test
N) Misc individual diagnostics