SDconnect

[cadbob]

What are the OnBoard Battery's for and the Memory Card Slot used for?
I've been using mine fine without Batteries or SDCard.

[carstudy]

http://www.autoprofessionals.org/showthr...p?tid=2288

Reference

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Did you forget ?

http://www.autoprofessionals.org/showthread.php?tid=1
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[Steinbock]

The batteries need to be installed when updating the C4 firmware. Please be aware: no normal batteries!!! The need to be rechargeable.
The SD card slot can be used to save different measures. I have not ever used it. And many of the cheap China clones do not even have that slot. When trying to insert a memory card it just disappears in the housing :-(
Removing is only possible after the C4 is opened.

[W211]

Just to add: C4 fw can be updated without batteries :) If need help send me PM. SD card is only bullshit. New xentry save quicktest as pdf format if needed on hdd/sdd