How to R89 stay ON after power failure ?

[baklazanowy]

Hello,

There is any chance for R89 device to stay powered ON even there is a power failure.
Normally if I had power failure, I have to push physical ON button on device to turn it ON.

maybe there is a solution to stay the device always ON or turn automatically ON if the power in socket wall gets back ?

Thank you in advance for any answers.

[gefattern]

Hi .
if you have Power On Problems because of flashing other Roms.I had the same Problems on my UT3.My Box always started up when i pressed
Power Button (did not start with Powerbutton) and then directly the Remote Powerbutton,then my Box started.Maybe the Cable has a Bug,move
him around could help & what about new flashing????

Hope it helps

gefattern

[baklazanowy]

Hi,
You understand me wrong

Her's the scenario:

1. Device is working, blue led is flashing.
2. I push the power button on device, screen goes black, led goes to red state. (Same action for remote)
3. I turn the dwvice ON via bower button or remote
3. I disconnect device from wall power outlet then connect agian to power.
4. Device will not start automatically after power outage.

there is any solution for point 4 ? Without pressing phisicaly power ON button ?

thx.

[mo123]

Hi,
You understand me wrong

Her's the scenario:

1. Device is working, blue led is flashing.
2. I push the power button on device, screen goes black, led goes to red state. (Same action for remote)
3. I turn the dwvice ON via bower button or remote
3. I disconnect device from wall power outlet then connect agian to power.
4. Device will not start automatically after power outage.

there is any solution for point 4 ? Without pressing phisicaly power ON button ?

thx.

No, some devices are manufactured like that and others power on automatically again even if power is disconnected without pressing the power on button.
Tronsmart and Beelink, RK3288/RK3368 you have to press the power button after power failure but on Ugoos/Nagrace devices they power on without pressing the on button after a power failure.

[baklazanowy]

I put two photos of electronic board of physical power button.
maybe someone have list of electronic parts used on this board ?

It's look not complicated - few smd diodes, resistors and transistors

I'm sure we could use some relay here....to bypass pressing button each time if we lost power from socket wall.

[prahjister]

Maybe find red led and connect to pin that turns it on. Just make sure everything is 5v. If the only time it is red is standby or just plugged in and never need it off/standby maybe good. I would be nervous about maybe looping. Maybe test button if it is momentary or if pressed shoots 5v the entire time. Good luck be careful

[prahjister]

I would guess the pins are ground logic red blue maybe. Should be easy to test with multimeter

[baklazanowy]

Simple solution: connect USB cable with 5V powered into OTG usb port it will enable autostart without pressing physical power button