Reset rd68 I want to change mmsi number

This is the official line

Can I change the MMSI number entered into a VHF radio or AIS unit?
Once entered and confirmed, the MMSI number can only be changed by a certified technical dealer. If you need your number reset or changed, it is recommended that you contact the organization or agency which originally registered your MMSI. For more information about MMSI numbers, go to the United States Coast Guard website at this link.

And

https://www.justanswer.com/boat/au99m-received-emailed-info-from-simrad-reset.html

This doesn't sound hopeful!

https://mt.panbo.com/2015/07/simrad-ai50-mmsi-reset.html

Full story

https://www.google.com/search?q=reset+Simrad+AI50+ais+to+a+new+MMSI

..

we are not Password fix dot com.. we do not hack PW here
in fact doing that now is ILLLegall .
it is not any computer, at all .
it is 2008 , 12years old.
lost the manual? google finds it 2nd hit.
a Marine VHF radio, did kid play with it and lock it out? or?
what need to do is reset the radio, (ask maker yet?)
or just changing the
Maritime Mobile Service Identity

???????????????????????????
why not be clear on what works and not. both matter.
if yes,
read this
https://www.boatus.com/MMSI/MMSI/Home

see this link https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=2ahUKEwir2KrP2ariAhWF3KQKHcoWCB0QFjAAegQIBRAB&url=http%3A%2F%2Fwww.cruisersforum.com%2Fforums%2Ff13%2Fraymarine-ais650-change-mmsi-number-165250.html&usg=AOvVaw0xeJI7BY3QB68BYDGrh-1U

Raymarine Ray55 Manuals Down Load user manual and reset MMSI according instructions.

You cant. Contact previous owner and ask for mmsi transfer or contact manufacturer about how to program new mmsi number.

Boat US MIGHT be able to tell you since they were involved with MMSI numbers If not try the USCG

I don't think the RAY100 is DSC compatible and therefore doesn't have the MMSI programmed into it. Most manufacturers limited the number of times that the MMSI can be programmed to one (!). After that, it has to got the factory or to an authorized dealer who can bypass the restriction.

This is not a motorcycle problem but a Marine VHF radio problem!

Hi!

Sorry to be the bearer of bad news, but according to the Owners Manual for this unit:
http://www.busse-yachtshop.de/pdf/simrad-rd68.pdf (Page 6),
to erase a previously entered MMSI, the radio must be sent to a Simrad authorized dealer. I suppose this feature was put into effect to cut down on stolen Simrad products.

Hope this is helpful, sorry I couldn't do more for you.

This secret code is for the Raytheon / Raymarine RAY 220 VHF. It may work on other Raytheon/Raymarine radios also.

Here you go:

With the Power OFF, Press and HOLD the FUNC, 16/9 and DSC keys while you power ON. Do not release the keys until you hear the audio BEEP which means your done. Then reprogam your NMSI number as per the manual. Pretty easy, hey?