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Junior Member
Reputation: 10
MTP850 not entering programming mode
Hi all
I have a MTP850 that is connected to a USB to Serial converter and a NKN6544B cable. When I press 1 9 and red power button for over a minute, the radio would not enter programming mode and it stays dark. When I press red power button, the radio powers on normally. Can it be the CPS disabled programming mode?
Thanks!
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2021-02-27 02:20 PM
# ADS
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Junior Member
Reputation: 10
Re: MTP850 not entering programming mode
Hi,
Try to click the Search for rs232 radios under tools and try it again. With an serial cable it's a little tricky to get in in programming mode. You could also try to use an native serial port which is recommended.
Best regards
KingAnon
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Junior Member
Reputation: 10
Re: MTP850 not entering programming mode
Thank you, would it be that the radio is purposely programmed by previous user to disable entering programming mode or is that not possible?
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Junior Member
Reputation: 10
Re: MTP850 not entering programming mode
No. As long as it's starts it works. Try to first press 1 9 and on then click the button in the software.
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Junior Member
Reputation: 10
Re: MTP850 not entering programming mode
Thanks,
I tried a different usb to serial converter and connected the radio to the computer, still no luck. According to the service manual, the flashing / programming mode is only possible when the radio is connected to CPS?
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Moderator
Reputation: 3584
1 out of 1 members found this post helpful.
Re: MTP850 not entering programming mode
that's not entirely true. make sure you use a programming cable with the switch in the right position. (flashmode)
Bootloader should be able to load from CPS then.
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Junior Member
Reputation: 10
Re: MTP850 not entering programming mode
Hi all,
Just want to report that after receiving the USB programming cable, PMKN4026B, the radio programmed up like a charm. Thanks all !
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