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T27G randomly waking up, backlight on
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rcmcdonald91 Offline
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Post: #1
T27G randomly waking up, backlight on
I have T27Gs that all behave the same on the latest rom (T27G-69.83.0.10.rom)

I have the backlight timeout set to 15 seconds. After 15 seconds, the backlight turns off. However, after several seconds the backlight turns on again...for no reason. After 15 seconds, the backlight turns off again. This repeats. Very annoying.

Any thoughts?
03-29-2018 11:19 PM
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complex1 Offline
3CX Adv. Cert. Engineer
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Posts: 1,488
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Post: #2
RE: T27G randomly waking up, backlight on
(03-29-2018 11:19 PM)rcmcdonald91 Wrote:  I have T27Gs that all behave the same on the latest rom (T27G-69.83.0.10.rom)

I have the backlight timeout set to 15 seconds. After 15 seconds, the backlight turns off. However, after several seconds the backlight turns on again...for no reason. After 15 seconds, the backlight turns off again. This repeats. Very annoying.

Any thoughts?

Hi,

Please reset the phone(s) to factory default, re-provisioning and test again.
Also make sure no devices are connected to the phones (PC port), only a connection to the LAN and please make use of an external power supply, do not use PoE.

Hope this will help.

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.
03-30-2018 10:33 AM
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anonymous1708485441207
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Post: #3
RE: T27G randomly waking up, backlight on
Dear Customer,

We need the config.bin and syslog on level 6 to find out the reason, would you please follow this FAQ to catch the issue and then send us the requested files?

Kind Regards
Samuel Wang
04-02-2018 02:18 PM
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herbert77060 Offline
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Posts: 1
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Post: #4
RE: T27G randomly waking up, backlight on
I just upgraded the T27G and the T27P phones and both types are doing the display turning on by itself periodically...and it is annoying. The phones are connected to the Yeastar S20.
.pcap  69.83.0.35_16_11_48.pcap (Size: 94.5 KB / Downloads: 1)
(This post was last modified: 06-14-2018 09:26 PM by herbert77060.)
06-14-2018 08:18 PM
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anonymous1708485441207
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Post: #5
RE: T27G randomly waking up, backlight on
Dear Customer,

Please apply below configuration to your phone by auto provisioning,

features.blf_active_backlight.enable=0

In V83 this issue is caused by backgroup BLF activitities.

KR
Samuel Wang
06-15-2018 01:17 AM
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