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Blank screen and flashing indicator
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GIWM Offline
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Post: #1
Blank screen and flashing indicator
After upgrading my T46G/S units to X.82.0.20, we've noticed that if they have no activity for a number of hours (like every Monday morning) that the screen is black and the indicator light is flashing. The phone will work just fine and can be 'woken' by interacting with the phone. We use the following settings universally that may apply, but these haven't changed since the X.81.X.X firmware:

features.power_saving.enable = 0
screensaver.wait_time = 30
screensaver.display_clock.enable = 1
screensaver.mode = 0
phone_setting.backlight_time = 30
phone_setting.inactive_backlight_level = 1

It acts like it may be ignoring the Power Saving setting and assuming it's enabled.

Thoughts?

I have confirmed that this is a bug in the X.82.0.20 firmware. The setting for features.power_saving.enable is being ignored.

I can replicate this quickly by changing all three Idle timeouts to 1 minute and leaving Power Saving set to Disabled. The phone will go into power saving one minute after hitting confirm.
(This post was last modified: 12-18-2017 08:52 PM by GIWM.)
12-18-2017 08:14 PM
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Lucia_Yealink Offline
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Post: #2
RE: Blank screen and flashing indicator
Dear GIWM,

Yes,as you said, I can reproduce the issue with your steps:
changing all three Idle timeouts to 1 minute and leaving Power Saving set to Disabled. The phone will go into power saving one minute after hitting confirm.

I will forward this problem to our R&D to locate the problem.

Also, the phone will automatucally enter power-saving mode to pretect the screen when the phone is inactive for 72 hours. That is, the color screen phones will
turn off the backlight and screen, and the black-and-white screen phones will only turn off the
backlight. Image persistence may be caused on LCD if power saving is disabled.

For the Monday morning, will it be possible that the phone is inactive for 72 hours, so the phone go to power-saving?

Best Regards,
Lucia
12-20-2017 02:44 AM
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GIWM Offline
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Post: #3
RE: Blank screen and flashing indicator
(12-20-2017 02:44 AM)Lucia_Yealink Wrote:  For the Monday morning, will it be possible that the phone is inactive for 72 hours, so the phone go to power-saving?

72 hours would be unlikely... it happens to my phone regularly enough and that's closer to 62 hours over a weekend.

I can easily live with the issue as it's very minor. It's just good to know why it's happening and that it may get fixed in a future update.

Thank you!
12-20-2017 01:53 PM
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Lucia_Yealink Offline
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Post: #4
RE: Blank screen and flashing indicator
Dear GIWM,

We just locate the problem, and you are right.
In the 82.20 version, there is a bug for the power saving, we will fixed it soon.
And I will update the firmware to you after we solve the problem.

Best Regards,
Lucia
12-21-2017 03:41 AM
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Lucia_Yealink Offline
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Post: #5
RE: Blank screen and flashing indicator
HI GIWM,

We have released the firmware to solve the problem.
Please download the firmware in the link below and test:
http://sfyms.yealink.com/?ShareToken=FD8...BB694EA0F3

Best Regards,
Lucia
12-28-2017 01:31 AM
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GIWM Offline
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Post: #6
RE: Blank screen and flashing indicator
I can confirm that this does indeed fix the issue.

Thank you.
01-04-2018 06:55 PM
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Jerry777 Offline
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Post: #7
RE: Blank screen and flashing indicator
This problem is also present on the T48S with firmware 66.82.0.30.
02-12-2018 09:12 AM
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complex1 Offline
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Post: #8
RE: Blank screen and flashing indicator
(02-12-2018 09:12 AM)Jerry777 Wrote:  This problem is also present on the T48S with firmware 66.82.0.30.

Please use the link that Lucia_Yealink posted a couple of posts ago.
Access to these files will expire on 25-6-2018 18:00:00 so hurry up.

Kind regards,
Frank.

I am not an employee of Yealink.
Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.
02-12-2018 10:39 AM
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Jerry777 Offline
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Post: #9
RE: Blank screen and flashing indicator
(02-12-2018 10:39 AM)complex1 Wrote:  
(02-12-2018 09:12 AM)Jerry777 Wrote:  This problem is also present on the T48S with firmware 66.82.0.30.

Please use the link that Lucia_Yealink posted a couple of posts ago.
Access to these files will expire on 25-6-2018 18:00:00 so hurry up.

Thanks for pointing out the link. I didn't think to look there as GIWM was talking about a T46G with different firmware.

I have upgraded to that firmware and it fixes the problem, thanks very much.
02-12-2018 08:08 PM
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