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NVRAM里面存放的是配置文件,之所以要清空是因为绝大多数新的程序使用的变量不同配置不同,无法使用旧的配置变量。不清空的话,有时没发现问题,因为新固件无法读取旧的某个变量时,会自行采用默认的变量。
清空配置绝不会造成变砖,变砖绝对是其他原因,例如新的本身固件有问题。
Tomato by Shibby以及FreshTomato都是强烈建议升级时清空NVRAM,DD-WRT更过分,强烈建议做30-30-30 reset。
https://www.linksysinfo.org/inde ... r-own-thread.74117/
As the first step in troubleshooting any issue, try to reset the router to default settings using "Erase all data in NVRAM memory (thorough)" option on the "Administration -> Configuration" page of the FreshTomato GUI. Do not restore your settings from the backup configuration file - always reconfigure the router manually when troubleshooting the problem!
https://wiki.dd-wrt.com/wiki/index.php/Hard_reset_or_30/30/30
Hard Reset (aka 30/30/30 reset)Note: This should only be done on older routers. On newer routers, ex: Asus N66U, this will put them in recovery mode instead.
The following procedure will clear out the NVRAM and set dd-wrt back to default values:
- With the unit powered on, press and hold the reset button on back of unit for 30 seconds
- Without releasing the reset button, unplug the unit and hold reset for another 30 seconds
- Plug the unit back in STILL holding the reset button a final 30 seconds (please note that this step can put Asus devices into recovery mode...see note below!)
This procedure should be done BEFORE and AFTER every firmware upgrade/downgrade.
你自行决定吧,我不回复此话题。
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