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XPR6550

Stephen

Member
Joined
Dec 19, 2002
Messages
474
Location
Dallas, TX
I have a XPR6550 that on occasion is freezing or locking up, and I have to disconnect the battery for second or two then it powers back up and may work for a few more hours or days before it happens again. Any ideas?
 

katt02

Katt
Joined
Oct 25, 2018
Messages
135
Location
The Mountains
I have had a similar problem with my xpr6550. Has your radio ever shut off out of nowhere too? Also have you ever turned the radio on and it refuses to get past the mototrbo logo?
 

buddrousa

Member
Premium Subscriber
Joined
Jan 5, 2003
Messages
8,778
Location
NW Tenn
Is the FIRMWARE up to date?
Did you buy this radio from a Local Motorola Shop or Ebay?
Have you tried to use a NOISE FILTER on the power input?
 

Stephen

Member
Joined
Dec 19, 2002
Messages
474
Location
Dallas, TX
If I try to turn the radio back on without disconnecting the battery then it will freeze on a blank screen or the TRBO logo..... I have upgraded the firmware since I have had it and that did not seem to change, though I will check tonight on MOL and see if there is another update. The radio was purchased about 1 1/2 years ago from a Motorola dealer as it was a trade in. I did not notice the issue until about 6-8 months ago.
 

Stephen

Member
Joined
Dec 19, 2002
Messages
474
Location
Dallas, TX
Just checked and that is the FW version that is on the radio, I try and stay on top of all of my radios to have the most up to date FW. I have also used different batteries in case that was causing a problem and all of my batteries are legitimate Motorola made.
 

FARMER522

Member
Joined
May 31, 2006
Messages
94
Try FW 1.17.08 has to come from Motorola, call them and they will send it to you.
 

GTR8000

NY/NJ Database Guy
Database Admin
Joined
Oct 4, 2007
Messages
9,771
Location
BEE00
S01.17.08 was the last firmware for the XPR 6550, which was never publicly released. It fixed an issue where the radio would emit a full volume high pitched squeal for no apparent reason, and power cycle or battery removal was required to clear the issue. I don't know if there was anything in that release that fixed the issue you're experiencing, but you may want to reach out to MSI to see if they will send you S01.17.08.
 

Stephen

Member
Joined
Dec 19, 2002
Messages
474
Location
Dallas, TX
Perfect I will give them a call when they open up tomorrow or Tuesday and get that ordered. I appreciate the feedback and hopefully this will fix the problem.
 

ElevatorsAndRadios

yarewesog
Joined
May 26, 2017
Messages
53
Location
SoCal
S01.17.08 was the last firmware for the XPR 6550, which was never publicly released. It fixed an issue where the radio would emit a full volume high pitched squeal for no apparent reason, and power cycle or battery removal was required to clear the issue. I don't know if there was anything in that release that fixed the issue you're experiencing, but you may want to reach out to MSI to see if they will send you S01.17.08.
I have a similar issue with my XPR4550. Receiving audio will go silent, then if I turn the volume up I get a squeal. It will either self-correct if left unattended or can be corrected by changing the channel (or perhaps pressing any button for that matter). Nice to know it's not just my radio and that it has been corrected. ^-^
 

Stephen

Member
Joined
Dec 19, 2002
Messages
474
Location
Dallas, TX
Well I have hit a road block with Motorola. I contacted them and after explaining the situation several times, I was told that since the XPR6550 has it end of life support they are no longer sending out this firmware, even though it apparently was used to fix a major issue. I inquired with tech support why this firmware was not made available online and heard only crickets. So I guess I will continue try and figure out another option.
 
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