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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Mikrotik CCR devices based on NAND memory will eventually die

Posted by jpluimers on 2021/08/16

If you own a Mikrotik CCR device based on NAND memory, then be prepared that it will die.

I had this on a (now discontinued [WayBack] MikroTik Routers and Wireless – Products: CCR1009-8G-1S-1S+PC, superseded by the less functional [WayBack] MikroTik Routers and Wireless – Products: CCR1009-7G-1C-1S+PC, which is also NAND based).

Many more people had this or very similar problems:

It also happens due to bad capacitors on the (also discontinued) [WayBack] MikroTik Routers and Wireless – Products: RB1200:

There have been quite a few NAND related changes to the firmware over the years that have to do with handling corruption:

If you are really lucky (I was not), then it is a bad power supply: [WayBack] bootloop on CCR1036-12g-4s (almost 5 years old) [SOLVED] – MikroTik.

Sometimes you can partially recover using the Console port or NetInstall, but eventually you will trip another part of the faulty NAND storage and it will die again, until it has spent all its lives.

Unlike a cat, those are usually far less than 9 lives.

If you do need to recover, the links might help you:

–jeroen

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