开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
  1. FT-857
  2. Topics

Random factory reset

 

While driving yesterday and monitoring my 857d, it randomly performed a factory reset without any input from me whatsoever. I contacted Yaesu and they asked if I used CHIRP to program it and they indicated that can cause problem, even years later. While I did use CHIRP to program, it was about 5 years ago and have had no problems since then.
?
Has anyone else ever experienced a random factory reset like this? Any other potential cause?
?
Tim
K6TW
 

Tim,
I have 3 and have never had that happen that I can remember, give us a bit more info on your set-up may be helpful, I.E. power hookup are you running a tuner and so on.
Troy
ke4ska
 

Typical mobile installation. 12v direct from the battery/ground. Remote head. No tuner. Only connected (at the time) for vhf/uhf. Been installed like this since July of last year and no problems. Rotate it the radio b/t three vehicles and last programmed it via CHIRP 5 years ago and never saw anything like this before.
 

Mine has done that occasionally.? I use the RT system but only for updates
?
Setup: Vehicle mounted feeding ATAS 120.? Kia van, Town & Country and Ram 1500? All hard mounted antenna
 

check all DC connections (clean, tight) . Open fuses check them also.

Thanks Dan KC2STA


On Fri, Jan 31, 2025 at 12:38?PM Steve Lenaghan via <steve.lenaghan=[email protected]> wrote:

Mine has done that occasionally.? I use the RT system but only for updates
?
Setup: Vehicle mounted feeding ATAS 120.? Kia van, Town & Country and Ram 1500? All hard mounted antenna



--
Dan Ziolkowski KC2STA
SKCC #4290T
Ubuntu LINUX
 

Most well written software has what is called a hook routine where if the processor encounters? corrupted data it jumps to a safe start point rather than lockup with no way out. I suspect in the case of the 857 it is the non volatile part of the software where it will reload the factory default.
The volatile part part of software can be corrupted by RF getting into the radio, common mode currents etc. Doing a reset is a good thing although it's annoying but warns you there is possibly an external problem.

ZL4IV
 

Too bad a simple Reed-Solomon subroutine, built in, couldn’t solve this dilemena.
/s/ Richard
_________


On Fri, Jan 31, 2025 at 1:05?PM ZL4IV via <cathar.gnostic=[email protected]> wrote:
Most well written software has what is called a hook routine where if the processor encounters? corrupted data it jumps to a safe start point rather than lockup with no way out. I suspect in the case of the 857 it is the non volatile part of the software where it will reload the factory default.
The volatile part part of software can be corrupted by RF getting into the radio, common mode currents etc. Doing a reset is a good thing although it's annoying but warns you there is possibly an external problem.

ZL4IV
 

Pull fuses and re-seat them several times - blade fuses are self-wiping when you do this. Why? Fuses? will get oxides on the blades that will cause? voltage drops. I have witnessed this myself.

Lee KX4TT




On Friday, January 31, 2025 at 12:46:02 PM EST, Dan KC2STA via groups.io <dan.ziolkowski@...> wrote:


check all DC connections (clean, tight) . Open fuses check them also.

Thanks Dan KC2STA


On Fri, Jan 31, 2025 at 12:38?PM Steve Lenaghan via <steve.lenaghan=[email protected]> wrote:

Mine has done that occasionally.? I use the RT system but only for updates
?
Setup: Vehicle mounted feeding ATAS 120.? Kia van, Town & Country and Ram 1500? All hard mounted antenna



--
Dan Ziolkowski KC2STA
SKCC #4290T
Ubuntu LINUX
_._,_._,_
 

开云体育

A bit of No lux or Electrical pentorex

?

?

?

From: [email protected] <[email protected]> On Behalf Of Lee via groups.io
Sent: Friday, January 31, 2025 12:55 PM
To: [email protected]
Subject: Re: [FT-857] Random factory reset

?

Pull fuses and re-seat them several times - blade fuses are self-wiping when you do this. Why? Fuses? will get oxides on the blades that will cause? voltage drops. I have witnessed this myself.

?

Lee KX4TT

?

?

?

?

On Friday, January 31, 2025 at 12:46:02 PM EST, Dan KC2STA via groups.io <dan.ziolkowski@...> wrote:

?

?

check all DC connections (clean, tight) . Open fuses check them also.

?

Thanks Dan KC2STA

?

?

On Fri, Jan 31, 2025 at 12:38?PM Steve Lenaghan via <steve.lenaghan=[email protected]> wrote:

Mine has done that occasionally.? I use the RT system but only for updates

?

Setup: Vehicle mounted feeding ATAS 120.? Kia van, Town & Country and Ram 1500? All hard mounted antenna


?

--

Dan Ziolkowski KC2STA
SKCC #4290T
Ubuntu LINUX
 

Do you have any cables plugged into the CAT jack or data jack? That can cause problems if RF gets back into those cables.

73,
--Hank
KB4MTO / TA5ZC


On January 30, 2025 1:34:01 PM EST, Tim Goodrich <tim@...> wrote:
While driving yesterday and monitoring my 857d, it randomly performed a factory reset without any input from me whatsoever. I contacted Yaesu and they asked if I used CHIRP to program it and they indicated that can cause problem, even years later. While I did use CHIRP to program, it was about 5 years ago and have had no problems since then.
?
Has anyone else ever experienced a random factory reset like this? Any other potential cause?
?
Tim
K6TW
--Hank Lambert
KB4MTO / TA5ZC
 

Back in the 70's Sony had a service bulletin about unused contact oxidation.? TV's were still rotary tuners and set top boxes were prefered over manually changing channels and therefore not wiping surfaces.? Pretty well like the ring under a coffee cup
Collins had a procedure for rack mounted multiplex equipment.? Reseat the card twice then determine if there was an actual failure
 

Did just that with the mainframes I worked on in the 80ties..
Pull the board's out and then reseat them?
?
73,
?
Dick?
?
 

开云体育

Bad connections between circuit boards and connectors often originates from airborne dirt rather than corrosion. Very fine particles of dirt land on the boards right where the the contacts touch the traces. Expansion/contraction of the boards and vibration slowly draw the dirt between the traces and the contacts where it wedges itself between them and is ground into crud that breaks the connection. This occurs slowly, and if a particular connection is carrying a bit of current,it can arc through the crud and cause burn damage to the contacts and board trace.? That is why pulling the board out and plugging it back in a few times often remedies the problem. In most cases a bit of cleaner solvent is wise as well, but burnishing the contacts should only be done if there is actual corrosion or arc damage seen after the cleaning. Using any cleaner that leaves a residue or lubricant is very likely to cause the problem to return within a short time.

?? Bruce Gentry, KA2IVY?

On 2/2/25 6:22, Dick Frijdal wrote:

Did just that with the mainframes I worked on in the 80ties..
Pull the board's out and then reseat them?
?
73,
?
Dick?
?

1 - 13 of 13