Bootloader dump:
http://pastebin.com/E189UqJg

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    Area            Address      Length 
---------------------------------------
[0] Boot            0xB0000000     192K
[1] Configuration   0xB0030000     256K
[2] Image 0         0xB0070000    3840K
[3] Image 1         0xB0430000    3840K
[4] Boot Params     0xB07F0000      64K
[5] Flash Image     0xB0000000    8192K
---------------------------------------

Start your serial terminal and press the space bar 3 times to access the bootloader shell. The access password are the first digits of your "Gerätepasswort" (device password). Press return to see help menu. Press "k" to run the minikernel, which will run a webserver on 192.168.2.1:80 with recovery options.

I'm unable to find R80 but located R65 near the CPU!