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Backup of stock AP121U firmware


Kostja_V
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Hello.

Today I finally received my Alfa AP121U router. It has stock Alfa firmware on it.

As I understand, I need USB/Serial to UART adapter to reflash my AP121U to OpenWRT or Pineapple using "Mark IV Clean Flash Instruction".

But I would like to know, is it possible to make a backup of the stock Alfa firmware before reflashing it to Pineapple? May be after some time I would like to return to the stock firmware.

The same question was asked here, but does not have answer: http://forums.hak5.org/index.php?/topic/27947-alfa-ap121u-custom-alfa-web-admin-help/

Also I have found this topic: http://forums.hak5.org/index.php?/topic/27203-ap121u-flashing-stock-alfa-firmware/ but as I understood, using this instruction I will get OpenWRT firmware, not the Alfa stock one?

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The stock Alfa firmware is OpenWRT. It is available on wifipineapple.com under the "clean flash" instructions.

Link http://cloud.wifipineapple.com/mk4/firmwares/factoryFiles.tar

Thank you for answer. But I am a little bit confused now.

http://forums.hak5.org/index.php?/topic/28075-need-help-with-installing-the-jasager-firmware-on-a-ap121u-loaded-with-the-default-alfa-firmware/ - according to second post there is difference between OpenWRT and Alfa firmware. Or both of them are OpenWRT, but Alfa's one cannot be flashed without USB/Serial to UART?

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Thank you for answer. But I am a little bit confused now.

http://forums.hak5.org/index.php?/topic/28075-need-help-with-installing-the-jasager-firmware-on-a-ap121u-loaded-with-the-default-alfa-firmware/ - according to second post there is difference between OpenWRT and Alfa firmware. Or both of them are OpenWRT, but Alfa's one cannot be flashed without USB/Serial to UART?

We don't have / supply alfa's one. We only have stock OpenWRT.

Either way, you cannot flash them without serial as long as you are coming from the other.

If you have alfa's installed on your device, you need serial to install OpenWRT and from there you can install our Pineapple firmware.

If you have OpenWRT installed, as we don't have an image, there is currently no way to restore it. Unless you dd the mtd partitions somehow to make a backup.

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We don't have / supply alfa's one. We only have stock OpenWRT.

Either way, you cannot flash them without serial as long as you are coming from the other.

If you have alfa's installed on your device, you need serial to install OpenWRT and from there you can install our Pineapple firmware.

If you have OpenWRT installed, as we don't have an image, there is currently no way to restore it. Unless you dd the mtd partitions somehow to make a backup.

Yep, that is the information I was waiting for. Thank you.

So, maybe anybody knows the way how to backup mtd partitions using TFTP? Because as I know, Alfa's stock firmware is not accessible via Telnet or SSH.

Also I wrote a message to Alfa Team, maybe they can help.

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  • 6 months later...

Hi There,

Just an update on the said subject, I have not tested this but got the files directly from ALFA Tech support.

I will try the method described to revert back to ALFA stock firmware (firmware image is provided in the ALFA website), UBOOT file is attached including the HOWTO

Firmware image: http://sourceforge.net/projects/alfanetwork/files/Firmware/AP121_V2.5_r2887_WEB.img/download

UBOOT + HOWTO : https://copy.com/CGE4XIoC9VxCiei8

Edited by vennstrom
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