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With this modding the Dreambox Remote Control is able to LEARN the Codes direct from the other Remote Control.
This works ONLY WITH URC 39930RJ0-xx.
Needed parts:
3x SMD SOT23 TRANSISTOR SMBT3904 or PMBS3904
3x SMD 0805 Resistor 10k
3x SMD 0805 Resistor 1k
1x SMD 0805 Resistor 1M
2x SMD 0805 Capacitor Ceramic 10pF
1x SMD 0805 Capacitor Ceramic 100nF
Placing:
R12,R18,R23 = 1k
R14,R20,R24 = 10k
R13 = 1M
C7,C18 = 10pF
C6 = 100nF
Q3,Q4,Q5 = SMBT3904 / PMBS3904
before.... ...and after the modding...
How to learn now... (FOLLOW THEESE STEPS EXACTLY, IF YOU PRESS ANY OTHER CODE YOU CAN DAMAGE YOUR REMOTE CONTROL TOTALLY!!)

1. Press "Shift" until it flashes 2 times.
2. Enter "975" and press "TV" key.
3. Shortly press the key you wanna lern on the URC39930 (now called URC), the "TV" key shoud flicker now.
4 .At the same time press AND HOLD the "key which should be learned" on the other Remote Control.
5. As soon as the "TV" key flashes twice on the URC, the learning is done.
Repeat steps 3 to 5 for all other needed keys.
6. To Exit the LEARN MODE, press and hold the "Shift" Key on the URC, until it flashes1 time, short pause, then it flashes 4 times.
7. Now you can release the "Shift" Key, the URC is in normal working mode now.