Frequency range expanding to 440MHz MTM5500 - who can help

[HAM-Thomas]

Hello,
I have a new ******** MTM5500, Version up to 430MHz. Firmware is R27.000.8626, MR10.6.10. I have to use it as HAMradio DMO-repeater. The needed CPS+ is 6.2 , 06.20.09.00, that I have it in normal Version, impossible to change the DMO frequency range to 440MHz.
Has anybody the possibility to change the frequency range in my codeplug from 430MHz to 440MHz or has anybody an other idea (the corresponding depo cps?). The frequency range to use in HAMradio operation is 430MHz-440MHz

Many thanks for help, Thomas

[RA1AIE]

You can downgrade your radio codeplug to version 0367, and then you will can read it with Depot CPS 6.0.2.
Make changes that you need via Lab mode, then upgrade radio back to lastest version.

[bytehunter73]

Hello!

If you re-upgrade the radio, the DMO will reset to 380-430MHz.
I had the problem with a MTH800.
Use an older codeplug, which is supported by the 6.0.2

Best regards!!!!

[RA1AIE]

No.
I have MTP850 that has been upgraded after freq expanding. No problems with DMO at 430-440.

[HAM-Thomas]

Hello,
many thanks for all helping me.

I have learned: the first step is to Downgrade the Codeplug. In the UP/DOWNGRADE Lite there is no target version to up/downgrade. I think, I have to import a release packet. Has anyone information, which release packet I need for the MTM5500 to 0367 or the correct file?

For any who can do the operation with my cqodeplug there is it in attachment.

Thanks, Thomas