Bose Lifestyle 650 remote malfunction

[hzwg88]

very thankful

[mpa2]

Here you are!

[hzwg88]

Can you provide a nvram? Thank you

[mpa2]

Well, I've found another remote, which worked without any issue. So no problem on the receiver side.

I then reprogrammed the nvram of the broken one with the dump from the new one - now my friend has two functional remotes. The first thought is often the right one

[mpa2]

Yes, harmony remote doesn't have a feedback.

I monitored today the activity on the spi interface between the transceiver and the mcu. Sometimes you can see some activity after a key press, sometimes not.
Could not find a system behind it.
I'll try to find another remote for testing.

[Diah]

I would still expect some output on the display. The RC behaves erratic, thus I asked about a known working firmware dump for testing.

I don't have another original remote, but with my harmony elite I can control the main unit without a problem.

yours harmony elite with out screen to sync feed back !! so how you put this in compare.... or i am wrong ?

[mpa2]

I would still expect some output on the display. The RC behaves erratic, thus I asked about a known working firmware dump for testing.

I don't have another original remote, but with my harmony elite I can control the main unit without a problem.

[Diah]

i think the issue at main unit transmitter didn't send sync feed back to RC so display didn't show any sign.. and it go to sleep look like it turned on with out any main unit closed to it

any other RC under hand?

[mpa2]

The push button for backlight is here

[Diah]

You mean the push button itself?

just remark it on yours photo which it show all BL working with out pressing any key

[mpa2]

can you show it here with focused clear photo

You mean the push button itself?

[Diah]

Yes, after removing the white foil I tested all keys - they are all NO and closing every single one of them causes a wake up. The current draw looks fine for me - about 5 ma on start up, about 3 ma when awake and almost zero when asleep.
I noticed another strange behavior. There a light switch on the buttom side, which turns on LED Backlight of the keypad and also wakes up the MCU. This wakeup works always, the LEDs however sometimes don't react.

can you show it here with focused clear photo

[mpa2]

Yes, after removing the white foil I tested all keys - they are all NO and closing every single one of them causes a wake up. The current draw looks fine for me - about 5 ma on start up, about 3 ma when awake and almost zero when asleep.
I noticed another strange behavior. There a light switch on the buttom side, which turns on LED Backlight of the keypad and also wakes up the MCU. This wakeup works always, the LEDs however sometimes don't react.

[Diah]

Im monitoring the current draw with the lab psu and in addition the mcu sleep/awake state with thermal imaging.

and did you noticed some unusual draw? by the way did it wake up on all keys

[mpa2]

this is not enough.. you need to put yours DM in Amp reading in the Red + line and switch on..... remark the pulling of Am at any state even sleep and when you wake it ab

Im monitoring the current draw with the lab psu and in addition the mcu sleep/awake state with thermal imaging.

[Diah]

Unfortunately, this didn't have any effect. All contacts are clean and open. Still the same behavior.

this is not enough.. you need to put yours DM in Amp reading in the Red + line and switch on..... remark the pulling of Am at any state even sleep and when you wake it ab

[mpa2]

Unfortunately, this didn't have any effect. All contacts are clean and open. Still the same behavior.

[Diah]

Thanks, I will try it tomorrow. I actually tested the frequently used keys and the reaction of the MCU (wake up) was adequate, but I didn't check all of them. I hope I'll get this white stuff off without damaging it.

its glue as Mobile glass protection screen

[mpa2]

Thanks, I will try it tomorrow. I actually tested the frequently used keys and the reaction of the MCU (wake up) was adequate, but I didn't check all of them. I hope I'll get this white stuff off without damaging it.

[Diah]

you have one or more keys always in contact..... carefully remove the white keys plate use alcohol up to 90% , clean the conductive lines all with it too let it dry and align the keys sheets back