No GSM network after installing Busybox.

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Hello folks :)

just for the docs:
If you installed Busybox on a rooted OneX with stock ROM, and removed some symlinks in /system/bin, make shure to keep /system/bin/insmod and /system/bin/chmod untouched or link it with /system/xbin/busybox (or wherever you installed busybox to).
If you don't, you phone will not prompt for the SIM PIN and will not show any network operator or signal.

If the phone starts, the file /system/bin/poweron_modem_fls.sh gets executed. This file will call a binary named IMCdownload which has /system/bin/insmod hardcoded. If this insmod is nonexistent the IMCdownload will fail and /dev/ttyACM0 (the GSM modem terminal) does't get created.
Next, gsm0710mux is called. This tool talks to /dev/ttyACM0. It tries to run /system/bin/chmod (even hardcoded). If this fails, the phone will not prompt for the SIM PIN even.

It took me two days and a nearly bricked OneX to figure this out.
Maybe its helpful so someone :)

Evil.