SD Connect C4 dead, not power up (customer solution)

Share an easy way to repair sd connect c4 multiplexer if your multiplexer is dead, not powering up via any adapter cable.

NOTE:
TRY AT YOUR OEWN RISK!

First open the MB SD C4 main unit. Slide PCB out a little bit, from the connector side, so you can see the units buttons wiring. Carefully pry the lock out & up, after that you can pull the wiring and PCB out.

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Then Open 4 Main PCB screws, Carefully wiggle the PCB off from another, it might be pretty tight, so carefully, side from side!

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Disconnect the LAN cable, carefully, pretty easy to break the small clip.

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Then you can disconnect the Connector PCB, very carefully, might be really thight! Again slowly from both sides. You now have access to the small Fuses.

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You can use multi-meter to see if they work, usually the LAN connector side 5A is burnt. So desolder the broken one, install new & enjoy your powering up mux again!

This repairing above requires experienced and professional techniques; or you are suggested to buy a cheap clone MB SD Connect C4 of high quality to replace it. Google to get the good one. I helped to put the first site here for you (no affiliation to the vendor)

All Benz diagnostic and programming Benz Ecom VS SD C4

New Arrival: Benz Ecom diagnostic and programming tool for newest Benz models. It comes with Dongle and software in the hard disk, activation via remote assistance. Works with newest Benz models instead of old models like MB SD C4.

1.Ecom
Support diagnostic software Xentry, engineering software Vediamo and super DTS Monaco,  it has a than higher access right than SDC4.

Ecom supports the CAN/DoIP protocol, which can be used to diagnose and programming (brushing & writing) for the new car audio and video entertainment systems.

The Mercedes-Benz engineering database of diagnosis / coding / retrofit /flashings is using the Xentry database, so the Mercedes-Benz engineering version depends on the version of Xentry, as long as the database is new, the V4.00 version can be used on new models. compact3 can be used.
SDC4 does not support ODX documents. The latest V5.00 uses eCom to support ODX files. It is recommended to use Ecom, with DoIP function, the speed is faster and more stable.

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2.SD C4
Support the diagnostic software Xentry, DAS software diagnostics, engineering Vediamo,  super DTS Monaco, Xentry and DAS Developer mode etc.

Common Name: Developing Data Engineering Edition After 2010
Version, added a lot of functional restrictions. So everyone will encounter the problem that the vehicle version is too new to enter
the control unit, or entering the control unit and cannot make any special modifications. For example: W204 /212 2012
The instrument is needed to modify the regional language configuration or open other convenient functions. With the increasing number of new car with DoIP protocol, the mb star SDC4 has slowly failed to meet market demand.

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