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FS#3641 - New D-Link bootloader (for DIR-2660 and possibly others) requires different header for images #8678

openwrt-bot opened this issue Feb 25, 2021 · 0 comments


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openwrt-bot commented Feb 25, 2021


It seems that some D-Link devices require additional header values in order to flash it via the recovery and to upgrade existing installs. The older versions of the DIR-2660 A1 could be flashed with the current OpenWrt snapshot.

The latest batch of DIR-2660 devices, and possibly others, come with a new bootloader that requires some additional header fields to be set. Manually changing the headers of the factory and upgrade files, allows them to flash succesfully;

you can edit one your self if you like
add "DIR-2660" text at address 0x40 hex
add "V1.00000" text at address 0x80 hex
add "A1" text at address 0x90 hex
change bytes 0x04 to 0x07 to 00
create crc32 for bytes 0x0 to 0x9F
place result in bytes 0x04 to 0x07

This is discussed in and

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