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IDProjectCategoryView StatusDate SubmittedLast Update
0404T835generalpublic25 Sep 15 12:1605 Nov 15 09:39
ReporterXerox 
Assigned To 
PrioritynormalSeveritycrashReproducibilityrandom
StatusnewResolutionopen 
PlatformOSOS Version
Product Version5.2 
Target VersionFixed in Version 
Summary0404: Hitachi HDR 325 crashes daily.
DescriptionI have 4 Hitachi HDR 325 units they all crash at odd times while in use for no reason.

They all re boot again and off we go until the next crash
Steps To ReproduceTried fitting timer to turn off for 1hour a day as sugested on a forum but they stil crash randomly usually once per day.
TagsNo tags attached.
Attached Files

- Relationships
has duplicate 0405closedFutaura Hitachi HDR 325 crashes daily 

-  Notes
User avatar (0669)
Xerox (reporter)
28 Sep 15 16:14

Happens mainly when select any change on remote control
Change channel
Select library
Select timers
User avatar (0671)
Futaura (administrator)
02 Oct 15 11:36

Do the 4 units each crash at approximately the same time as each other? You should not need to fit a timer, especially if you have low power mode enabled which I would recommend. Have you performed a retune lately? I would suggest performing a first time installation to clear out all timers and trigger a retune.
User avatar (0672)
Xerox (reporter)
02 Oct 15 14:59

No as i use them at different times and 1 unit is at my mums house so all crash at different times.
Have re formated one unit and first time installation try to resolve but no joy.
Appears to happen when selecting library change to timers or guide gets confused and reboots.
Have tried auto shutdown and low power on.
Will still try these setting for a while but any suggestions would be most gratefully received.

Live in London Area.
User avatar (0673)
Futaura (administrator)
02 Oct 15 15:10

Another thing to try, if you haven't done so already, is to delete unwanted channels from the channel list - if nothing else, this improves EPG performance (doesn't slow down so much).

Some other users have reported similar symptoms, but the cause has yet to be proven. One theory is that the recent increase in the number of channels is causing trouble, hence the above suggestion. It could also be due to malformed/corrupt EPG data at broadcast level. So, far I have yet to see the problem on my box.
User avatar (0674)
Xerox (reporter)
02 Oct 15 15:44

Leave auto power off and low power off turn on unit and keep changing from guide to library back to guide then to timers then guide then info after unit has been on for at least 24hrs.

My first thought were thermal runaway on the main microprocessor.
Tried adding heatsink.
Then hard drive so tried re formating.
Then full first time installation.

None of the above resolved the issue.

It happens randomly more when its been on for some time and when you change functions as described.

Seems to crash due to confusion then all re boots.

All ok until the next crash.

reboot again etc etc.

Hope this helps.

Kind Regards

Frank.

07786 757574
User avatar (0675)
Xerox (reporter)
07 Oct 15 00:11

New update two night running at approx. 23.00 one unit crashed one unit froze.
Unit 1
Unit crashed rebooted
auto power on
low power off
updates on
This unit rebooted itself

Unit 2
unit froze
auto power on
low power off
updates off

Had to reboot this unit no response even trying to turn off at unit had to disconnect power.
User avatar (0676)
Futaura (administrator)
07 Oct 15 10:31

Have you deleted all unwanted channels? This looks like it is the way to avoid this issue, and low power should really be on.
User avatar (0677)
Xerox (reporter)
07 Oct 15 11:27

Not so far i will try this next but did i not read that if you select low power on it may miss out recording or was that on my old model HDR253.

Additionally if you have low power on you have to wait for it to reboot up each time you turn it on and the clock is not visible.
User avatar (0678)
Futaura (administrator)
07 Oct 15 15:03

I've been using low power mode for years on all my boxes (T835 being the oldest one I have with low power mode) and I've had no real trouble with it. There was trouble with software versions earlier than v3.4 on the T835, but newer versions are fine. You might be right about the HDR253 - unfortunately, I have never used a T825 box myself. The boxes wake up approx 20 minutes before a recording is due to start, so only if a programme starts more than 20 minutes early can this be a problem, but such occurances are extremely rare.

Can't argue about the boot up time and lack of clock, but it generally improves reliability - you are more likely to miss out recordings with low power mode off due to the slow down after several hours of uptime.

I can't emphasize enough that channels need to be delete from the channel list, as the increase in number of channels seems to be causing the reboots - even deleting all those internet streaming channels (which can't be used on the T835) in the 200 number range will help.
User avatar (0679)
Xerox (reporter)
07 Oct 15 18:56

Ok fine thanks will do as you suggest its very frustraing currently
User avatar (0680)
Xerox (reporter)
08 Oct 15 08:59

HI I have done as you suggested last night they both crashed again last night i believe one was already on low power having rebooted prior to clearing the channels you suggested.

This was again 23.00 uk time not sure where you are based.

The time of crash has not been consistent in the past.

However currently I am not convinced of the solution as if the unit is on low power its actually starting up each time in the same way as if it re-booting.

So by starting from the low power is this covering up the problem don't you think?
User avatar (0681)
Futaura (administrator)
08 Oct 15 18:34

Maybe so, but if it helps and there is no hope of a software update, then this is the workaround - I wouldn't call it a solution.

With the T835 being 6 years old now, and with Freeview no longer supporting SD boxes, I guess a software fix is unlikely, but I will report the issue to Vestel to see what they say. I haven't done so yet because I'm trying to gather information to help pinpoint the issue rather than just saying the boxes are crashing randomly.

I have confirmed that the crash happens with a full channel list and no timers set at all. So, that has ruled out timer issues and will make it easier to reproduce. Others have reported that trimming the channel list down by manually deleting channels helps, but if you are sure it doesn't, then that makes me think it has to be either malformed EIT data (has happened in the past) or MHEG red button stuff particularly on the BBC channels. Both of these are broadcast issues - the trouble is identifying any suspect channels, but if Vestel are willing to get this tested by their UK team, then hopefully they can trace the issue.
User avatar (0682)
Futaura (administrator)
16 Oct 15 16:35

It really does seem that reducing the number of channels helps - I deleted everything in the 200-299 range for my first test and the box had a working uptime of over 4 days (low power off, obviously) before it rebooted. I've now deleted everything above 135 to see if it lasts longer.
User avatar (0683)
Xerox (reporter)
16 Oct 15 18:41

Thank you for your update
I to have been trialing ideas
Reduced channels to 92 total

Set up

Tv only channels
Auto power down on
Low power off
Software Updates off
Two boxes set up the same more stable but both have frozen a couple of times.
Had to reboot to clear.
Unplugged and reconnect dc power to reboot.
User avatar (0684)
Futaura (administrator)
17 Oct 15 10:42

Do you recall when this issue first started?
User avatar (0685)
Xerox (reporter)
17 Oct 15 11:29

Around 12 to 18 months ago
Third box froze this morning my latest box is only around just under 2 years old.
Hope this helps.
User avatar (0686)
Xerox (reporter)
17 Oct 15 11:30

Going away on business but will respond if I can get wifi
Good luck
Kind Regards
User avatar (0687)
Xerox (reporter)
26 Oct 15 10:53

Any updates please
User avatar (0688)
Futaura (administrator)
26 Oct 15 18:17

No news to report. My box has now been up for 10 days after deleting everything above channel 135, with low power off, although it is of course behaving sluggishly after all this time. My advice remains to delete all channels you're never going to use and to ensure low power mode is enabled. It is probably unlikely that Vestel are going to offer a software fix for a six year old device that has not been manufactured for the last year or so, unfortunately.
User avatar (0689)
Xerox (reporter)
26 Oct 15 18:36

That may be true but Argos were still selling them less the 18 months ago
User avatar (0690)
Xerox (reporter)
05 Nov 15 09:39

All set up as suggested auto power down on low power on .
All channels below 135 removed.
Selected TV channels only.
More reactive but 2 of my boxes have crashed again.

- Issue History
Date Modified Username Field Change
25 Sep 15 12:16 Xerox New Issue
28 Sep 15 16:14 Xerox Note Added: 0669
02 Oct 15 11:31 Futaura Relationship added has duplicate 0405
02 Oct 15 11:36 Futaura Note Added: 0671
02 Oct 15 14:59 Xerox Note Added: 0672
02 Oct 15 15:10 Futaura Note Added: 0673
02 Oct 15 15:44 Xerox Note Added: 0674
07 Oct 15 00:11 Xerox Note Added: 0675
07 Oct 15 10:31 Futaura Note Added: 0676
07 Oct 15 11:27 Xerox Note Added: 0677
07 Oct 15 15:03 Futaura Note Added: 0678
07 Oct 15 18:56 Xerox Note Added: 0679
08 Oct 15 08:59 Xerox Note Added: 0680
08 Oct 15 18:34 Futaura Note Added: 0681
16 Oct 15 16:35 Futaura Note Added: 0682
16 Oct 15 18:41 Xerox Note Added: 0683
17 Oct 15 10:42 Futaura Note Added: 0684
17 Oct 15 11:29 Xerox Note Added: 0685
17 Oct 15 11:30 Xerox Note Added: 0686
26 Oct 15 10:53 Xerox Note Added: 0687
26 Oct 15 18:17 Futaura Note Added: 0688
26 Oct 15 18:36 Xerox Note Added: 0689
05 Nov 15 09:39 Xerox Note Added: 0690


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