Samsung
SVM-400 Voice Mail System Installation Manual
Replacing System ROMs
You need to replace system ROM chips when upgrading the system program or fixing bugs in
the program. Replace the ROMs as follows.
1. Before replacing the system ROMs, read this section carefully. If there are any problems, or
if you are unsure of anything, contact your dealer or the Samsung Technical Support
department for advice.
2. Switch off the mains power and remove the power cable.
3. Remove the side and front covers of the system unit as described earlier.
4. If an external battery is installed, remove it.
5. There are two ROMs on the system baseboard. Remove these ROMs using a chip extractor
and keep them safe for reinstallation in case of emergency.
SVM-400
6. Install the new ROMs with care in the designated locations: ODD1 and EVEN1.
7. Reconnect the power cable, switch on the power and check that the system is operating
correctly. If not, remove the new ROMs, re-install the old ones and contact your dealer or the
Samsung Technical Support department for advice.
8. If an external battery was installed, reconnect it.
9. Replace the front and side covers of the system unit.
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EVEN1
ODD1
EVEN1
ODD1