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XPR 4550 Possibly Bricked??

K4DPA

Dawson
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I recently was writing to my XPR 4550 UHF mobile and halfway through the programming the radio froze. I tried turning the radio off and reprogramming it again and now my laptop will not recognize the radio. It says it’s a failure when I look at the Device Manager on my laptop. The radio also has deleted channels from zones and scan lists. Basically it’s moved channels into random zones and scan list. Does anyone know of a way that I can reset this radio from the buttons on the radio? Thanks.
 

K2NEC

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There is no "reset" like you think there is

Also confused by the "radio also has deleted channels from zones and scan lists" because the radio either took the codeplug or it didn't. It's not going to magically remove channels on its own.

Try to force a write again with a rear programming cable. As long as the radio powers, it's not a total brick from whatever you did to the thing
 

K4DPA

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There is no "reset" like you think there is

Also confused by the "radio also has deleted channels from zones and scan lists" because the radio either took the codeplug or it didn't. It's not going to magically remove channels on its own.

Try to force a write again with a rear programming cable. As long as the radio powers, it's not a total brick from whatever you did to the thing

No the radio has moved channels around into random zones and scan list. There are a lot of channels that are not in certain zones in CPS that are in the radio. This happened after the radio froze up and I tried to reprogram it. Is the rear programming cable the serial type connection?
 

K4DPA

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There is no "reset" like you think there is

Also confused by the "radio also has deleted channels from zones and scan lists" because the radio either took the codeplug or it didn't. It's not going to magically remove channels on its own.

Try to force a write again with a rear programming cable. As long as the radio powers, it's not a total brick from whatever you did to the thing
I'm guessing this?

51Mi94Y8H+L._AC_SL1001_.jpg
 

K4DPA

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What cable were you trying to use when this happened? I've used both the front mic jack cable and rear cable on my 4550's and 4580's and not had a problem. I'm just curious.
I have been using the front mic jack. I had idea the rear cable even existed until it was mentioned here.
 

K9KLC

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I have been using the front mic jack. I had idea the rear cable even existed until it was mentioned here.
OK. I personally have not had any trouble with the front cable when programming but, I usually use the rear cable most of the time. I had to get a front cable to program a radio I bought (4550 VHF) that for some reason the rear cable didn't work. I tried 3 cables and 2 different laptops and no combination would get the rear cable to work in just that one radio. All of those worked on the other 10 or 12 4550/4580/5550/5580's I ever went to program or update so I'm not sure why on that one radio, nothing from the rear would work. I guess something with the rear plug although we looked and nothing jumped out at us and since the front cable worked ok, I didn't want to get into it too much.

Good luck, and keep us posted.
 

K4DPA

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T
OK. I personally have not had any trouble with the front cable when programming but, I usually use the rear cable most of the time. I had to get a front cable to program a radio I bought (4550 VHF) that for some reason the rear cable didn't work. I tried 3 cables and 2 different laptops and no combination would get the rear cable to work in just that one radio. All of those worked on the other 10 or 12 4550/4580/5550/5580's I ever went to program or update so I'm not sure why on that one radio, nothing from the rear would work. I guess something with the rear plug although we looked and nothing jumped out at us and since the front cable worked ok, I didn't want to get into it too much.

Good luck, and keep us posted.
The cable has always worked for years with no issue. I believe that something happened in the middle of the cps writing to the radio causing some type of error with the radio it's self. I tested the cable on another XPR 4550 with the same computer and CPS 2 with no issues. But I'll try and see if this rear cable allows the radio to communicate with the cps.
 

K9KLC

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The cable has always worked for years with no issue. I believe that something happened in the middle of the cps writing to the radio causing some type of error with the radio it's self. I tested the cable on another XPR 4550 with the same computer and CPS 2 with no issues. But I'll try and see if this rear cable allows the radio to communicate with the cps.
And you tried to re-write to that radio or maybe clone from the other plug to it??? (assuming they're the same band)
 

K9KLC

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No, clone on the CPS.
We do it often between radios of the same model number. I just did 4, 4550's off the same VHF code plug for 3 other hams in the area...
 

K2NEC

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And you tried to re-write to that radio or maybe clone from the other plug to it??? (assuming they're the same band)
OP said his computer doesnt recognize the radio. If write didn't work, clone wont work either.
 

K4DPA

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No, clone on the CPS.
We do it often between radios of the same model number. I just did 4, 4550's off the same VHF code plug for 3 other hams in the area...
The CPS and my laptop does not recognize the radio anymore so the CPS unable to communicate with the radio at this time.
 

K9KLC

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OP said his computer doesnt recognize the radio. If write didn't work, clone wont work either.
ok sorry I must have forgotten that in the mix, thanks. you are absolutely correct, I just encountered this on a 4550 I was trying to do from the rear. However that one never worked from the rear since I received it well used.
 
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