Panasonic DP-UB9000 4K Blu-ray player | High-end Audio/Video machine

Coris

Well-Known Member
May 27, 2016
72
6
90
Norway
I would like to point out on an aspect (important issue) of the firmware of the UB9000, which it seems known to Panasonic, but for unexplainable reasons, they (still) ignore to fix it.
At questions about why this issue of this player model, their answer is “we do not know the cause of such” … Very strange answer from a manufacturer of a consumer devices sold to worldwide consumers/users.
Even more strange, Panasonic are not preoccupied to analyse their own software, trying to find out the cause of the reported issue, solving it, and updating in consequence the (more than an whole year old now) firmware of UB9000.

Well, what is this all about? In some (not yet clear) circumstances, while streaming from Youtube (I do not know yet if this issue it appears in streaming from other providers), the device just it freezes up. An event on network transfers it impact quite bad the whole device. The monitor gets dark (no video signal present), no any response from machine, nor from the buttons on front panels or from remote. Not possible to turn it off in any way, but only taking out the power cord.
It seems that the software/internal app, responsible for managing the network interface, it cannot respond or take a decision when the event it occur, and this it confuses the whole system. The device does not know what to do further. This is the apparence of the issue, seen from the user side.
I have tried to find some factual correlations when such issue it occurs. In my opinion it seems this issue in connection with a bad/poor software management of internal memory. The system it come to a point when it not has enough memory available to process any further. Or whatever… It could be many causes of such serious (never corrected) firmware bug.
Another software design problem of UB9000, in close connection with the above-mentioned issue, is the lack of possibility to proceed to a system reset (except taking out the power). This device it does not any general reset, but only at power up sequence, which it happens only when the device is connected to wall outlet. Then and always, the device it remains in standby like mode (similar to hibernation status for an PC), until it come the power on command from button or remote.
In this way, the device is not well/full “cleaned” up never, by a general reset, keeping one or another information in memory, registry, or wherever. The hardware in this device it seems it never get a full fresh/clean start up, except only when it loses the main power…
Where from my reasoning in this direction? When the issue occurred on my device, I taken out the network cable. After a while it was possible to turn it off (in standby). I start it up again, and I have tried accessing the network service. The device could not start up its network application, but only half way, and freeze it up again. For sure, it remembered the previous event, was still waiting something which never come (a response?), or it had not enough memory available to process further its network app. Or whatever… For sure, not any hardware reset occurred when cycled the standby on/off from front panel button. If the power is completely removed, then all it starts very well, as nothing it happened before (also the normal boot and power on sequence is running, starting with a general reset).
This device it not boots up, when the user it presses the power on button or from remote, but it only boots up when connected to outlet main power. In all the rest of the time when is “powered off” it goes in fact in a standby state. The bad quality software/firmware it is not able to fully clean memory and registry (as a hardware reset it does), and when waking up (“power on”), some parts of the system it still stores unnecessary or wrong informations, or the system memory is not properly cleaned up. They chose this like standby state, instead of power cut, because it speeds up the device start up when the user it press the power on button (or from remote). However, this so called power on function it still taking so unbearable long time...

Well, I have experienced network issues of the same sort (freezing up) at Oppo too, while streaming over network. Not on Youtube (there it is not working anymore that application), but on whatever streaming using the network interface in some particular (not very clear) circumstances. Only the whole behaviour is not so dramatic for Oppo players, as it is for UB9000. Because the Oppo devices it boots up in fact at power on (if set it accordingly in Menu), and then the power on sequence it begins always with a general hardware reset. This it makes the device “to forget” the whole previous bad things, starting up fresh and well. Long press function on power on button, if the device it freezes (Oppo software designers were clever to presume such freezing events occurrences), it makes possible a real power off (processor full power cut).
Oppo players it shows lot of problems, if the power off settings is set to something else than “Power Efficient” one.

This software issue is even more inconvenient (above to be highly annoying), when the UB9000 is equipped with an LPS. When the user gets an unresponsive device, while using it, the first gesture (instinct) is to take out its power completely (unplugging it from outlet). The second gesture it may come after a while as well… by selling the UB9000… But then, what buying else?
If for an SMPS, unplugging the device from main power it can be tolerated well enough, then for an LPS with large filtering capacities and long time to lose the accumulated power, it may be a challenge, such a cycling on/off main power. The analogue regulators inside an LPS it can be messed up by main power quick and repeated power on/off cycles. This is not good at all!

For those users heaving an LPS inside the UB9000, I would like to warn about this aspect. One should wait at least half a minute, before plugging in back again to wall outlet, after a such freezing event.
Another alternative to unplug the power cord, is to unplug first the network cable, then waiting for the device to respond at power off button (or remote).
This issue it occur while using the network interface. Else, the device it works as it should for the rest of its functions (as I have experienced so far...).

I am thinking at a kind of hardware reset function/solution for UB9000, while using the LPS, but best of all it should be that Panasonic itself should have finally enough respect for those who are buying their products, fixing the bugs in their products software, as caring more for updating the devices firmware, for their customers’ convenience…
 
Last edited:
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kenreau

Well-Known Member
Sep 11, 2014
7
0
206
I would like to point out on an aspect (important issue) of the firmware of the UB9000, which it seems known to Panasonic, but for unexplainable reasons, they (still) ignore to fix it.
At questions about why this issue of this player model, their answer is “we do not know the cause of such” … Very strange answer from a manufacturer of a consumer devices sold to worldwide consumers/users.
Even more strange, Panasonic are not preoccupied to analyse their own software, trying to find out the cause of the reported issue, solving it, and updating in consequence the (more than an whole year old now) firmware of UB9000.

Well, what is this all about? In some (not yet clear) circumstances, while streaming from Youtube (I do not know yet if this issue it appears in streaming from other providers), the device just it freezes up. An event on network transfers it impact quite bad the whole device. The monitor gets dark (no video signal present), no any response from machine, nor from the buttons on front panels or from remote. Not possible to turn it off in any way, but only taking out the power cord.
It seems that the software/internal app, responsible for managing the network interface, it cannot respond or take a decision when the event it occur, and this it confuses the whole system. The device does not know what to do further. This is the apparence of the issue, seen from the user side.
I have tried to find some factual correlations when such issue it occurs. In my opinion it seems this issue in connection with a bad/poor software management of internal memory. The system it come to a point when it not has enough memory available to process any further. Or whatever… It could be many causes of such serious (never corrected) firmware bug.
Another software design problem of UB9000, in close connection with the above-mentioned issue, is the lack of possibility to proceed to a system reset (except taking out the power). This device it does not any general reset, but only at power up sequence, which it happens only when the device is connected to wall outlet. Then and always, the device it remains in standby like mode (similar to hibernation status for an PC), until it come the power on command from button or remote.
In this way, the device is not well/full “cleaned” up never, by a general reset, keeping one or another information in memory, registry, or wherever. The hardware in this device it seems it never get a full fresh/clean start up, except only when it loses the main power…
Where from my reasoning in this direction? When the issue occurred on my device, I taken out the network cable. After a while it was possible to turn it off (in standby). I start it up again, and I have tried accessing the network service. The device could not start up its network application, but only half way, and freeze it up again. For sure, it remembered the previous event, was still waiting something which never come (a response?), or it had not enough memory available to process further its network app. Or whatever… For sure, not any hardware reset occurred when cycled the standby on/off from front panel button. If the power is completely removed, then all it starts very well, as nothing it happened before (also the normal boot and power on sequence is running, starting with a general reset).
This device it not boots up, when the user it presses the power on button or from remote, but it only boots up when connected to outlet main power. In all the rest of the time when is “powered off” it goes in fact in a standby state. The bad quality software/firmware it is not able to fully clean memory and registry (as a hardware reset it does), and when waking up (“power on”), some parts of the system it still stores unnecessary or wrong informations, or the system memory is not properly cleaned up. They chose this like standby state, instead of power cut, because it speeds up the device start up when the user it press the power on button (or from remote). However, this so called power on function it still taking so unbearable long time...

Well, I have experienced network issues of the same sort (freezing up) at Oppo too, while streaming over network. Not on Youtube (there it is not working anymore that application), but on whatever streaming using the network interface in some particular (not very clear) circumstances. Only the whole behaviour is not so dramatic for Oppo players, as it is for UB9000. Because the Oppo devices it boots up in fact at power on (if set it accordingly in Menu), and then the power on sequence it begins always with a general hardware reset. This it makes the device “to forget” the whole previous bad things, starting up fresh and well. Long press function on power on button, if the device it freezes (Oppo software designers were clever to presume such freezing events occurrences), it makes possible a real power off (processor full power cut).
Oppo players it shows lot of problems, if the power off settings is set to something else than “Power Efficient” one.

This software issue is even more inconvenient (above to be highly annoying), when the UB9000 is equipped with an LPS. When the user gets an unresponsive device, while using it, the first gesture (instinct) is to take out its power completely (unplugging it from outlet). The second gesture it may come after a while as well… by selling the UB9000… But then, what buying else?
If for an SMPS, unplugging the device from main power it can be tolerated well enough, then for an LPS with large filtering capacities and long time to lose the accumulated power, it may be a challenge, such a cycling on/off main power. The analogue regulators inside an LPS it can be messed up by main power quick and repeated power on/off cycles. This is not good at all!

For those users heaving an LPS inside the UB9000, I would like to warn about this aspect. One should wait at least half a minute, before plugging in back again to wall outlet, after a such freezing event.
Another alternative to unplug the power cord, is to unplug first the network cable, then waiting for the device to respond at power off button (or remote).
This issue it occur while using the network interface. Else, the device it works as it should for the rest of its functions (as I have experienced so far...).

I am thinking at a kind of hardware reset function/solution for UB9000, while using the LPS, but best of all it should be that Panasonic itself should have finally enough respect for those who are buying their products, fixing the bugs in their products software, as caring more for updating the devices firmware, for their customers’ convenience…
Thanks for the post, Coris. Sounds like a frustrating firmware issue to be addressed by Panasonic. Given the HT/Video emphasis, I suggest also posting this over at AVS Forum's Official UB9000 Owner's thread. Also possibly at AVNirvana, Robert Zohn of Value Electronics (US Retailer) frequents there and has direct communication with Panasonic support.
 

Forte

Well-Known Member
Feb 17, 2017
37
18
73
How is the quality of the XLR analog outs for DVD/BR? Looking for a video disc flipper with XLR outs
 

Coris

Well-Known Member
May 27, 2016
72
6
90
Norway
Thanks for the post, Coris. Sounds like a frustrating firmware issue to be addressed by Panasonic. Given the HT/Video emphasis, I suggest also posting this over at AVS Forum's Official UB9000 Owner's thread. Also possibly at AVNirvana, Robert Zohn of Value Electronics (US Retailer) frequents there and has direct communication with Panasonic support.
Good point. Done it...
 

Coris

Well-Known Member
May 27, 2016
72
6
90
Norway
How is the quality of the XLR analog outs for DVD/BR? Looking for a video disc flipper with XLR outs
The stock device quality on XLR is enough good (better than on stock Oppo). It become much better after upgrades on both stereo DAC and audio board itself (also LPS in place)...
 

Forte

Well-Known Member
Feb 17, 2017
37
18
73
Does this unit play multi-region DVDs by chance or does it require hardware mods?
 

Coris

Well-Known Member
May 27, 2016
72
6
90
Norway
Well, to be honest, I cannot answer to this question (yet). Maybe you can get an answer if you ask i the forum.
 

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