T4 Crashes

csutak40 · Post by **csutak40** » Fri Feb 07, 2020 00:34

I have not yet updated to the new firmware.

In the last few weeks, the Wiz decides to reboot itself every so often. Has happened about 3-4 times so far.

What would cause this and should I worry?

MrQuade · Post by **MrQuade** » Fri Feb 07, 2020 00:49

csutak40 wrote: ↑
Fri Feb 07, 2020 00:34
What would cause this and should I worry?

Is it rebooting completely, or is it just crashing and restarting the GUI? (a full reboot takes about a minute, whereas a GUI restart flashes up a screen of text and restarts within about 10 seconds).

GUI restart is a sign of a software problem. This is usually fairly easily fixable.

A full reboot is a hint of a hardware problem. This is something to worry about.

It has been a hot summer.....could it have been overheating?

Have you had the power regulators repaired on the T4 motherboard yet?

csutak40 · Post by **csutak40** » Fri Feb 07, 2020 09:13

MrQuade wrote: ↑
Fri Feb 07, 2020 00:49

csutak40 wrote: ↑
Fri Feb 07, 2020 00:34
What would cause this and should I worry?
Is it rebooting completely, or is it just crashing and restarting the GUI? (a full reboot takes about a minute, whereas a GUI restart flashes up a screen of text and restarts within about 10 seconds).

GUI restart is a sign of a software problem. This is usually fairly easily fixable.

A full reboot is a hint of a hardware problem. This is something to worry about.

It has been a hot summer.....could it have been overheating?

Have you had the power regulators repaired on the T4 motherboard yet?

Oh dear! Sounds like I have a hardware problem, it is definitely a full reboot.
I usually have the air con on when it is very hot.
No, I haven't had the power regulators repaired. How does one do that?

Grumpy_Geoff · Post by **Grumpy_Geoff** » Fri Feb 07, 2020 09:30

csutak40 wrote: ↑
Fri Feb 07, 2020 09:13
Oh dear! Sounds like I have a hardware problem, it is definitely a full reboot.
I usually have the air con on when it is very hot.
No, I haven't had the power regulators repaired. How does one do that?

Do all four tuners show in MENU>>Information>>Devices?

Re. the tuner power regulators:
Turn off the power to the T4 at the wall.
Wait 30 mins, then take off the cover and have a look at the tuner regulators. Any brown/black ooze?
See prl's mess - viewtopic.php?f=53&t=13286#p177660
Mine here - https://ibb.co/GVd0q45, https://ibb.co/gDBmcGc, https://ibb.co/NmwHsrz

peteru · Post by **peteru** » Fri Feb 07, 2020 14:39

No, I haven't had the power regulators repaired. How does one do that?

take off the cover and have a look at the tuner regulators. Any brown/black ooze?

I think it's safe to say that waiting until there are visible symptoms is asking for trouble. If you have not had the regulators looked at by someone familiar with the issue and capable of repairing it, then you are just waiting until it becomes bad enough to be irreparable.

Warkus is probably the best person to look after your T4.

Grumpy_Geoff · Post by **Grumpy_Geoff** » Fri Feb 07, 2020 16:22

peteru wrote: ↑
Fri Feb 07, 2020 14:39
I think it's safe to say that waiting until there are visible symptoms is asking for trouble. If you have not had the regulators looked at by someone familiar with the issue and capable of repairing it, then you are just waiting until it becomes bad enough to be irreparable.

Do we know of any T4s with Rev1.2 mainboards that have the issue?

peteru · Post by **peteru** » Fri Feb 07, 2020 16:31

The regulators will be a source of issues on all T4's, given the thermal design and loading. I don't have enough data to determine whether there are corrosion issues with all revisions of the board / manufacturing runs. Again, I would be calling on Warkus to provide an expert opinion. He has seen more boards than most people and is likely to have enough data points to offer an informed opinion.

csutak40 · Post by **csutak40** » Sun Feb 09, 2020 01:07

peteru wrote: ↑
Fri Feb 07, 2020 14:39

Warkus is probably the best person to look after your T4.

Is Warkus back on the scene again? Must say, I haven't been keeping up, last I've read was that he retired, stopped taking work (can't remember the details)
BTW, just checked, all four tuners are there.

: 1_0_1_313_310_3202_EEEE0000_0_0_0_20200209015949.jpg (46.35 KiB) Viewed 6135 times

As for taking the top off. I have a phobia against anything to do with the innards of any of my toys. I do have a friend that will do that for me, but not sure if he can actually do anything about it, should he see the problem.
So, do you think it is a safe bet that I should be sending it to Warkus?
Question... Given that the T2 has a very small HD, would it be possible to temporarily swap the drives before sending the T4 off. THAT my friend could do for me...
Oh... If I remember rightly, they are different sized drives...

MrQuade · Post by **MrQuade** » Sun Feb 09, 2020 02:40

csutak40 wrote: ↑
Sun Feb 09, 2020 01:07
Oh... If I remember rightly, they are different sized drives...

You could plug it in via USB if you have a spare SUB/SATA caddy, or adaptor around.

peteru · Post by **peteru** » Sun Feb 09, 2020 02:53

csutak40 wrote: ↑
Sun Feb 09, 2020 01:07
do you think it is a safe bet that I should be sending it to Warkus?

No, not at all. I think you should get in touch with him and ask for his opinion / recommendations.

He might suggest a re-install of the most recent official firmware and running with factory configuration for a few days. Or he might recognise the symptoms, give you a quote and ask you to send it over. Or he may ask you for the serial number to determine which manufacturing run you have.

If I was troubleshooting this, I'd start with the bit in bold.

csutak40 · Post by **csutak40** » Wed Feb 12, 2020 13:53

OK. I am writing a quick note here, as I am running late for an appointment.
A friend came over, we updated the firmware (for some reason I can't get IceTV to work, I logged in, did a fetch and all I get is three days of Dr Phil, nothing else is showing)
I wrote to Mark, and attempted to attach some photos we took of the innards of the T4, but couldn't figure out how to do it, so will send it here instead

prl · Post by **prl** » Wed Feb 12, 2020 14:12

The visible bits of the white thermal cement doesn't seem to have discoloured (but it may still not be in good shape inside).

There are what look like scorch marks on the near side of the circuit board near both regulator pairs.

The regulators may well need repair.

peteru · Post by **peteru** » Wed Feb 12, 2020 22:05

Yes, you have a problem. The board is being corroded. Just because you can see white bits (where there is no extreme overheating) does not mean all is good.

Any evidence of darker coloured "stuff" near those components is a confirmation of a problem. However, just because you can't see it, does not mean you are in the clear.

csutak40 · Post by **csutak40** » Thu Feb 13, 2020 00:02

I have PM'd Mark (yesterday, then send another quick note today) no answer yet. He may not be around. Should I email him?
Also I have another problem you may be able to help with.
I have two HDMI cables connected to the TV. The Wiz was always connected to HDMI1 (labelled T4) As I said, my friend came over today, but he, too was in a rush, so he uploaded the firmware and disconnected the Wiz to have a look under the hood.
The Samsung TV comes with a little box that all the cables are plugged into, so no need to go fishing behind the TV
He reconnected the Wiz, the picture came up for a second, then disappeared. He checked all connections, it seemed to be OK. Then he left. When I came back into the room, the "source" has moved to HDMI 2, with the label "unknown"
So, I phoned him up to ask if he'd swapped them at the box end, and he suggested I check the connections behind the TV, forgot about the box, so never touched it. The other HDMI is connected to my PC and, as I know what that cable looks like, I could tell that it was plugged into HDMI1 and vice versa. So, I swapped them.
I changed the source to HDMI1, which worked, but the label still says "unknown". Anyway, I can live with that, until I figure it out. I attempted to fetch the timers, but it didn't work, except for 4 Dr Phils

didn't have time to think about it - wrote my quick note here and left. When I got home, turned it on. The wiz opened on HDMI1 got a picture for a second, it then disappeared and jumped to HDMI2 What would cause this?
Meantime I think I have solved the timers problem...

prl · Post by **prl** » Thu Feb 13, 2020 13:17

You're probably best off emailing Mark directly.

Paul_oz53 · Post by **Paul_oz53** » Thu Feb 13, 2020 14:18

prl wrote: ↑
Thu Feb 13, 2020 13:17
You're probably best off emailing Mark directly.

I find it best to call Mark directly. See http://www.decisivecomputersolutions.com.au/ for the number. I'd switch it off until you do.

Your latest problems may be just a loose HDMI cable and a need to resend all timers from the IceTV website but the risk of damaging the motherboard needs to be resolved first.

csutak40 · Post by **csutak40** » Fri Feb 14, 2020 19:34

I got a reply from Mark. Seems there is not much he can do:

I have had several T4 units in here now that sporadically reboot randomly, and in all cases it seems as though the SOC (CPU) is faulty and when it gets hot it fails and the system reboots.

This "may" not be repairable.

peteru · Post by **peteru** » Fri Feb 14, 2020 20:20

The dreaded thermal related BGA failures. HP (and probably other manufacturers) used to have major issues with nVidia GPUs. Lead-free solder only makes it worse.

There are plenty of academic papers on these topics. Unfortunately there are also a lot of repair "tricks" (like putting boards in toaster ovens to re-flow the solder) floating around, that often lead to complete disaster.

If indeed you have a problem where the SoC BGA solder joints are failing, then repair is unlikely to be economical. There are no shortcuts if you want it fixed properly. Taking the SoC off, reballing it and putting it back on the board is tricky and requires specialist equipment that runs well over tens of thousands of dollars.

My suggestion would be to still ship your unit to Mark and see if he can fix it (the cause of your problem may be different), but with a view that if he can not, he may want the T4 for spare parts. Obviously, discuss this idea with him first.

Paul_oz53 · Post by **Paul_oz53** » Fri Feb 14, 2020 20:54

Hi Judy,

If the reboot is heat related, maybe a 5v USB fan on top of the case will keep it below the critical temperature. They're available on eBay for around $15. I've ordered one.

Flying blind here but it's cheaper than postage to Perth.

csutak40 · Post by **csutak40** » Fri Feb 14, 2020 21:29

Just had a quick look, to see how much a replacement would cost. I haven't looked at new developments lately (had no intention of buying anything

) Is the only one available now the V2?

MrQuade · Post by **MrQuade** » Fri Feb 14, 2020 21:38

csutak40 wrote: ↑
Fri Feb 14, 2020 21:29
Is the only one available now the V2?

New from Beyonwiz, yes.

csutak40 · Post by **csutak40** » Sat Feb 15, 2020 03:37

Oh dear! I started reading the Forum/s about the V2, to get an idea, and I suspect that it is way too complicated for me!
Sounds like one needs to be a nerd to run it, and a penguin one as well.

So, if my T4 dies, I am in deep....
Haven't read a lot yet, but do agree with some of the comments

I lack understanding why [...] if you want more tuners you have to use addon devices rather than having a complete unit.

Not much of a fan of plugin USB tuners or dangly bits and pieces hanging off my gear.

I have an office, with all sorts (way too much) stuff in there, have cables that resemble a spider's web (or two)
However, I have (so far) managed to keep the mess out of the loungeroom and really don't fancy making it into another "computer room"
I really don't know what I'm going to do, because one thing is for sure, while I definitely will get a fan, the writing is on the wall

Well, I'll keep reading the comments, they may get more encouraging later...

MrQuade · Post by **MrQuade** » Sat Feb 15, 2020 07:06

csutak40 wrote: ↑
Sat Feb 15, 2020 03:37
Oh dear! I started reading the Forum/s about the V2, to get an idea, and I suspect that it is way too complicated for me!
Sounds like one needs to be a nerd to run it, and a penguin one as well.

Not at all. The V2 works exactly like the T2 and T4. Same user interface and basic features.

The problems you are seeing are from users migrating over from DP series Wiz units and suffering from the sudden jump in complexity.

The only differences from the T4 you already have relate to the external peripherals.

Jan · Post by **Jan** » Sat Feb 15, 2020 16:11

csutak40 wrote: ↑
Sat Feb 15, 2020 03:37
Oh dear! I started reading the Forum/s about the V2, to get an idea, and I suspect that it is way too complicated for me!
Sounds like one needs to be a nerd to run it, and a penguin one as well.
So, if my T4 dies, I am in deep....

Hi Judy. Don't be scared of the V2. I purchased in November, and was coming from a P1. I had it up and running for all intents and purposes within 30 minutes. I did have a few issues with networking at the beginning, but thanks to the advice given here to have a static IP address, it has been fine since then. I read the forum frequently, and so I am still learning little tricks and tweaks, but had no issues at all just working out the basics of record and playback!! Although I do love technology, I am an old bird in her 70th year and a lot of what is spoken about here goes completely beyond my knowledge or understanding. However as far as just doing what it is meant to do, I found it perfectly easy to master!! It took me a couple of weeks to venture into the world of Autotimers and Plugins, but now I am very comfortable with those as well!!

csutak40 · Post by **csutak40** » Sat Feb 15, 2020 16:44

Jan wrote: ↑
Sat Feb 15, 2020 16:11

Hi Judy. Don't be scared of the V2. I purchased in November, and was coming from a P1. I had it up and running for all intents and purposes within 30 minutes. I did have a few issues with networking at the beginning, but thanks to the advice given here to have a static IP address, it has been fine since then. I read the forum frequently, and so I am still learning little tricks and tweaks, but had no issues at all just working out the basics of record and playback!! Although I do love technology, I am an old bird in her 70th year and a lot of what is spoken about here goes completely beyond my knowledge or understanding. However as far as just doing what it is meant to do, I found it perfectly easy to master!! It took me a couple of weeks to venture into the world of Autotimers and Plugins, but now I am very comfortable with those as well!!

Thanks for that. Makes me feel a bit better

The thing I'm still struggling with is where am I going to hide all the paraphernalia? I have a thing against cables - I am a laughing stock among my friends, the stuff I do to hide them all (not fun, when you need to disconnect something for some reason

)
BTW, you're a spring chicken, I'm nearly a decade older than you are!

prl · Post by **prl** » Sat Feb 15, 2020 17:03

csutak40 wrote: ↑
Sat Feb 15, 2020 16:44
The thing I'm still struggling with is where am I going to hide all the paraphernalia?

What would you need to connect to the V2? There's only really much paraphernalia if you want to attach more then 2 USB devices (e.g. if you want HDD, USB tuner and USB WiFi dongle). Then you need a USB hub, and it does get a bit cluttered.

Jan · Post by **Jan** » Sat Feb 15, 2020 17:24

csutak40 wrote: ↑
Sat Feb 15, 2020 16:44
Thanks for that. Makes me feel a bit better The thing I'm still struggling with is where am I going to hide all the paraphernalia? I have a thing against cables - I am a laughing stock among my friends, the stuff I do to hide them all (not fun, when you need to disconnect something for some reason )
BTW, you're a spring chicken, I'm nearly a decade older than you are!

Yes, I'm not too happy with all the separate components and cables. Especially at the moment because I still have my old Topfield and P1 in operation until I have finished watching the last of the content on those! Hopefully I will find a way to camouflage all the clutter then. And yes, I feel your pain about needing to disconnect stuff. These poor old bones and muscles don't take too kindly to some of the positions they are forced into on those occasions!!

I'm betting we two "girls" are the only old chooks (or chickens) of our vintage on these forums!!

prl · Post by **prl** » Sat Feb 15, 2020 17:49

Here's a photo of a V2 with its power pack, a 1TB USB drive and "bluey" single USB tuner, with a 30-cm ruler for scale.

The clutter isn't too bad, but as I said, the clutter gets a good bit worse if you want more than 2 USB devices. 2-, 3- and 4-TB USB drives are also available in similar sized packaging.

I'm feeling youthful at 5 years younger than Jan

Jan · Post by **Jan** » Sat Feb 15, 2020 18:47

prl wrote: ↑
Sat Feb 15, 2020 17:49
Here's a photo of a V2 with its power pack, a 1TB USB drive and dual USB tuner, with a 30-cm ruler for scale.

The clutter isn't too bad, but as I said, the clutter gets a good bit worse if you want more than 2 USB devices. 2-, 3- and 4-TB USB drives are also available in similar sized packaging.

This is what "a good bit worse clutter" looks like!! The peripherals are usually hidden behind a photo of the Grandies!! I will be very happy when I can get it all off the top, and hidden away inside the entertainment unit!

prl wrote: ↑
Sat Feb 15, 2020 17:49
I'm feeling youthful at 5 years younger than Jan

And so you should Peter!!

peteru · Post by **peteru** » Sat Feb 15, 2020 19:54

You can ditch the external USB drive. A microSD card in the slot at the rear of the V2 can serve as local storage used for timeshift, settings backups, etc. You can configure the V2 to record to a NAS, which can be located elsewhere in the house. An Ethernet cable is reasonably neat when compared to an external drive and you get a choice of colours.

I would not recommend WiFi for recording to NAS.

csutak40 · Post by **csutak40** » Sun Feb 16, 2020 04:45

peteru wrote: ↑
Sat Feb 15, 2020 19:54
You can ditch the external USB drive. A microSD card in the slot at the rear of the V2 can serve as local storage used for timeshift, settings backups, etc. You can configure the V2 to record to a NAS, which can be located elsewhere in the house. An Ethernet cable is reasonably neat when compared to an external drive and you get a choice of colours.

I would not recommend WiFi for recording to NAS.

Hmm. I was wondering if the external drive could be located elsewhere. That sounds promising. Would you believe, I drilled a hole in the wall between the loungeroom and the office -hidden by the entertainment unit - to trail the HDMI cable through (which was to connect the TV to the PC) so I suppose that hole could now become handy

The cables trailing (for both yours and Jan's version, hurts my sensibilities

I am still not very familiar with how the V2 works - haven't had time to get much further reading the thread. All I know is that I would want the quad version - gotten spoiled with the T4 (especially as, having upgraded my PC to W10, I have lost the Windows Media Player, on which I used to also tape some stuff
I also have a 4TB drive in the T4 (which only has 10% or so left on it)
So, while I haven't yet figured out what I need to get to at least match what I now have, I do want to make sure that I do
I do have Ethernet connection to the T4, so that wouldn't be a problem

prl · Post by **prl** » Sun Feb 16, 2020 10:57

csutak40 wrote: ↑
Sun Feb 16, 2020 04:45
I am still not very familiar with how the V2 works - haven't had time to get much further reading the thread. All I know is that I would want the quad version

There isn't really a "quad version" of the V2. If you buy a "quad tuner" V2, you get a dual tuner V2 (because that's what it is) and a dual USB tuner (like the blue dongle hanging out of the back of the T2 in my photo).

Note that the Beyonwiz Web pages say that the USB dual tuner is currently out of stock. If you order a "quad tuner" V2 now, they'll send the dual USB tuner separately after 14 March.

csutak40 wrote: ↑
Sun Feb 16, 2020 04:45
I also have a 4TB drive in the T4 (which only has 10% or so left on it)

If you want to use that drive with the V2, you'd need to buy a USB HDD enclosure with its own power supply, remove the drive from the T4, put it in the enclosure and then plug the enclosure's USB port into a USB port on the V2.

csutak40 wrote: ↑
Sun Feb 16, 2020 04:45
So, while I haven't yet figured out what I need to get to at least match what I now have, I do want to make sure that I do
I do have Ethernet connection to the T4, so that wouldn't be a problem

A simple setup with minimal cabling to match your T4 as closely as possible would be a quad tuner V2 (i.e. with dual USB tuner) and a 4-TB pocket USB HDD (or with your existing T4 HDD in a new enclosure). For that setup, the HDD would be in a separate enclosure, the USB dual tuner could be plugged straight into the back of the V2, and you'd have an internet connection from your existing Ethernet cable.

If you use a pocket drive, that would be exactly the setup shown in my photo.

Note that the V2 has no HDMI IN, so you can't record from other HDMI sources on a V2 as you can on a T4.

csutak40 · Post by **csutak40** » Sun Feb 16, 2020 15:24

Thank you for all the info

prl wrote: ↑
Sun Feb 16, 2020 10:57

There isn't really a "quad version" of the V2. If you buy a "quad tuner" V2, you get a dual tuner V2 (because that's what it is) and a dual USB tuner (like the blue dongle hanging out of the back of the T2 in my photo).

Note that the Beyonwiz Web pages say that the USB dual tuner is currently out of stock. If you order a "quad tuner" V2 now, they'll send the dual USB tuner separately after 14 March.

Yes, I did see that the dongle is out of stock (and I find it disappointing that it has to be a dongle, as I had to replace the one in the T2, the original having become FUBAR)
A friend is about to buy and install a fan for me, so I am hoping that I will last until at least the 14th of March

Meanwhile, got another question,.
If (when?) the T4 dies, would that kill the HDD? I certainly wouldn't want to lose all the stuff I have on there

Have another OT question. (too lazy to start another thread) Haven't yet updated the T2 with the latest firmware. I've read that one shouldn't restore the backup. However, is there a trick to saving the settings, so that I don't have to spend ages trying to remember how I had it set up?

prl · Post by **prl** » Sun Feb 16, 2020 15:57

csutak40 wrote: ↑
Sun Feb 16, 2020 15:24
If (when?) the T4 dies, would that kill the HDD? I certainly wouldn't want to lose all the stuff I have on there

There isn't a way to say either way with any certainty, especially since we don't know what's causing the crashes. There's a good chance that the crashes won't cause any major problems with the HDD, but they probably can't be absolutely ruled out.

csutak40 wrote: ↑
Sun Feb 16, 2020 15:24
Have another OT question. (too lazy to start another thread) Haven't yet updated the T2 with the latest firmware. I've read that one shouldn't restore the backup. However, is there a trick to saving the settings, so that I don't have to spend ages trying to remember how I had it set up?

There aren't really any simple shortcuts. When I do it, I use the settings file on the PVR, because that basically lists everything that's changed from the defaults, but it's not very user-friendly.

Screenshots of the settings screens is another way to do it, but that's tedious to collect and check.

peteru · Post by **peteru** » Sun Feb 16, 2020 16:38

csutak40 wrote: ↑
Sun Feb 16, 2020 15:24
If (when?) the T4 dies, would that kill the HDD? I certainly wouldn't want to lose all the stuff I have on there

It depends on what's wrong. If there is an intermittent problem with the SoC that can cause spontaneous crashes and reboots, then there is a very good chance of data corruption which can lead to file system corruption and that could result in total or partial data loss. This could already be happening as it can be a gradual process or a catastrophic incident.

Bottom line is, if you flashed the latest firmware, are operating with a fairly standard configuration and are still experiencing crashes and reboots, then you have a hardware problem. Continuing to use the system with an intermittent hardware problem increases the likelihood of data loss and complete failure. If the data is important to you, back it up. You could be strategic about the backup and get yourself a decent NAS to backup your T4 and any other important data you have at home. Then, if/when you get the V2, you can connect it to the NAS.

Grumpy_Geoff · Post by **Grumpy_Geoff** » Sun Feb 16, 2020 18:11

csutak40 wrote: ↑
Sun Feb 16, 2020 15:24
Have another OT question. (too lazy to start another thread) Haven't yet updated the T2 with the latest firmware. I've read that one shouldn't restore the backup. However, is there a trick to saving the settings, so that I don't have to spend ages trying to remember how I had it set up?

If the T2 is currently on a 17.5-series firmware (20180417, or 20190207), then you can restore settings.

csutak40 · Post by **csutak40** » Sun Feb 16, 2020 18:30

Grumpy_Geoff wrote: ↑
Sun Feb 16, 2020 18:11

csutak40 wrote: ↑
Sun Feb 16, 2020 15:24
Have another OT question. (too lazy to start another thread) Haven't yet updated the T2 with the latest firmware. I've read that one shouldn't restore the backup. However, is there a trick to saving the settings, so that I don't have to spend ages trying to remember how I had it set up?

If the T2 is currently on a 17.5-series firmware (20180417, or 20190207), then you can restore settings.

Oh! Brilliant! Thank you! It is 20190207

csutak40 · Post by **csutak40** » Sun Feb 16, 2020 18:59

peteru wrote: ↑
Sun Feb 16, 2020 16:38

Bottom line is, if you flashed the latest firmware, are operating with a fairly standard configuration and are still experiencing crashes and reboots, then you have a hardware problem.

Well, FWIW, I haven't had a crash since I flashed the latest firmware, but then again, it hasn't been terribly hot since, either. The HDMI weirdness is still happening (well, I thought it may have sorted itself out, it didn't happen yesterday, but happened again today) but once I change it back to HDMI1 manually, it works fine
I left all the defaults, except the padding, didn't install any plugins (miss them!) so are you suggesting I should leave it as is?

peteru · Post by **peteru** » Sun Feb 16, 2020 22:06

If it is not misbehaving then there is no obvious issue to fix and any repairs are going to be most likely preventative.

It sounds like the HDMI issues you are experiencing are a side effect of interfering with the previous installation and are unlikely to be a problem with the T4.

My advice would be to be vigilant and if there are any issues, see if you can correlate them to specific triggers, such as ambient temperature or number of simultaneous recordings.

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