Correlation between Charging & Screen On - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

When I have my phone plugged-in and press the power button to turn the screen on, there is a significant lag, versus un-plugged.
Anybody know why? My guess is everything is reduced to save power.

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JASJAR EXPERTS HELP A GUY OUT PLEASE!!!

Thanks for reading the post...I am very frustrated with this device and want to see if ANYONE can help me...
First, the power button...I can turn the device on, but it will not turn the device off...it only lights on the screen backlight or turns the screen backlight off...I can't power it off, no matter how long I press it for...Therefore I have to take tha battery out to power off...which is not good for data!
Second, the backlight on battery level resets itself to 0 (thus a near black screen until I can get it into a bright light and go in and activate the backlight on battery level to 1 at least) Why is this doing this, and it only happens every 5-6 times I power the device on...
Thanks for your help everyone!!!
As far as I know, there is no way to actually power off the JasJar/Universal - it's always in a standby mode unless you pull the battery.
Not sure about your other issue though - sorry.
Cheers,
Steve.
It resets the backlight settings probably because it has "forgotten" your previous settings due to the way you "power off" your Universal. It is a phone, not a laptop, so it only goes into standby mode.
Sounds like you are pressing and holding down the power button for too long. To turn on/off the device, just tap on the power button once and don't hold it down. Hope that helps! :wink:

Double tap screen to wake device up?

Would it be possible to configure our Rhodiums to wake from sleep mode upon a quick double tap on the screen? If possible it could be set that only a double tap (one tap followed by another no longer than half a second later for example) would wake the device to ensure accidental knocks in our pocket wouldn't wake it.
Any ideas?
Thanks
anyone any ideas?
I'm going to go out on a limb and say this isn't possible without seriously jeapordizing battery life, so it wouldn't be something plausible.
Consider that what you're asking means your device will always have to monitor the screen and thus never enter standby mode.
Perhaps you should look into applying the registry fix that will wake your device on any key press (not just the power button). Maybe that will work for you as well, while still letting your device go into standby.
What is wrong with the built-in power button again?
I would like that also (different button to turn on). With the diamond the centre round button would be a better button to turn on the pda than the current power button (which is a little too far recessed for my liking) The centre button is larger but recessed also which would stop accidently turning in on in your pocket.
Link to previous thread regarding pressing any key to wake...
ohyeahar said:
I'm going to go out on a limb and say this isn't possible without seriously jeapordizing battery life, so it wouldn't be something plausible.
Consider that what you're asking means your device will always have to monitor the screen and thus never enter standby mode.
Perhaps you should look into applying the registry fix that will wake your device on any key press (not just the power button). Maybe that will work for you as well, while still letting your device go into standby.
Click to expand...
Click to collapse
yeah thats a fair point, ddn't think too much about the implications of it having to perhaps always be awake!
Spike15 said:
What is wrong with the built-in power button again?
Click to expand...
Click to collapse
Nothing wrong with the power button, just thought itd be a cool feature to be able to do that, but ill stick with whats best!
I think HTC's placement of the power button is perfect. I've been using smartphones and PDAs for a while and that's just the natural spot I EXPECT a power button to be. In fact with my breif stay with a Blackjack II I kept hitting the power button to dim the screen, which on that phone would actually turn it off, like off off.
And as stated above, when your phone goes into standby, the screen turns off, it can't detect anything. In order to keep the sensor on, you would be draining power when your phone really shouldn't.
I'll throw my coin in the hat of "silly idea"
My first Tilt 2, which had a dud microphone, the power button was fine.. It was recessed but easily pressed. My current Tilt 2 I have to press holding the phone longwise.. if I'm holding the phone on the sides I can't press the power button... I'm thinking the screen moves slightly more or the button is more recessed. It's kind of annoying.
Personally I'd also like not have to use the power button all the time myself, although I wouldn't want to tap to do it.. One of the four hardware buttons would be just fine.
Yes, I know sliding and removing the stlyus turn it on too, neither thing I do often.

[Q] power button issue?

Hi all,
does anyone sometimes have to press the power button (when phone is completely turned off) twice (2 presses to turn on) sometimes?...
so just to confirm
- handset is off
- push power button once (sometimes doesnt come on
- push for second time (and powers up)
im defiantly pushing for long enough
iv have no issues with the button at all when in the UI or when locking/unlocking display
iv done a few tests where i have turned off. then went to switch on, with the same pressure and sometimes it starts with one, sometimes it starts with two presses,
do u think this is a fault? anyone experience this? normal?
just checking...
thanks heaps!
I had the opposite on my first one. When I pressed the power button to turn screen off, the screen went black for 1 sec and jumped back on lock screen.
brodiecb said:
Hi all,
does anyone sometimes have to press the power button (when phone is completely turned off) twice (2 presses to turn on) sometimes?...
so just to confirm
- handset is off
- push power button once (sometimes doesnt come on
- push for second time (and powers up)
im defiantly pushing for long enough
iv have no issues with the button at all when in the UI or when locking/unlocking display
iv done a few tests where i have turned off. then went to switch on, with the same pressure and sometimes it starts with one, sometimes it starts with two presses,
do u think this is a fault? anyone experience this? normal?
just checking...
thanks heaps!
Click to expand...
Click to collapse
to switch on device you have to keep pressed power button for few seconds or u can keep it pressed until you see lights at the touch keys.. :good:
Hi
brodiecb said:
Hi all,
does anyone sometimes have to press the power button (when phone is completely turned off) twice (2 presses to turn on) sometimes?...
so just to confirm
- handset is off
- push power button once (sometimes doesnt come on
- push for second time (and powers up)
im defiantly pushing for long enough
iv have no issues with the button at all when in the UI or when locking/unlocking display
iv done a few tests where i have turned off. then went to switch on, with the same pressure and sometimes it starts with one, sometimes it starts with two presses,
do u think this is a fault? anyone experience this? normal?
just checking...
thanks heaps!
Click to expand...
Click to collapse
I don't think many people would turn their phone completely off so haven't found the issue.
When you power off what will be happening is the phone is off as much as it can be, but these buttons are soft off, the battery is still connected and some power must be drawn to run the power circuitry to detect the button being pressed again to signal to power back up the phone, in the same way when you turn your TV off by the remote, power is still drawn to run the remote sensor on the TV.
To keep the drain on the battery as low as possible so the battery isn't completely discharged over months of storage I suspect the power chip waiting for the on signal again is only sampling every so often to save power so it can be in super deep sleep state. This means depending on where in this cycle you are when you press the power button it might seem like it isn't responding, so typically you have to leave it depressed long enough for it to be "seen".
The better option is to just to put your phone into flight mode if you don't want to be disturbed or want the phone off. I do this overnight and lose no battery power by the morning, so it is as good as off. You can add a button to your home screen to do this quickly, widgets are included already for that.
Regards
Phil
Mine does the same thing.. Sometimes it does it with waking up from sleep also.
Sent from my HTC One X using xda app-developers app

[Q] Wonky Battery

Anybody else experienced this? Same issue persist on stock rom, so I think my battery is shot.. Any tuips or suggestions are appreciated. Battery never charges past 73%, used to be 83%. And constant drop of power.
Have you tried to charge it in Power Off mode (hold power button down for 5 seconds and then choose Power Off) wait a few seconds for it to shut down, then try to charge it - you should see a battery icon, see if it will reach 100% in that state (can press the home button or power button to check status it should show 100% when charged)..
If not make sure you are using the official Samsung Charger and Cable - there are a lot of Chinese knockoffs so try to use originals.
(The reason I ask to try in power-off mode is because it eliminates abusive apps , CPU, Screen On , WIFI, BT, GPS and other settings from sucking power, Power Off mode ensures all the power goes directly to the battery)

Power Button Lag

I've been using the 5T for a while and I noticed that whenever I pull the phone out of my pocket and immediately press the power button to wake the screen, there would be a noticeable lag of about 1 second before the screen turns on. Sometimes, the screen doesn't even turn on. I suspect that this has to do with the light sensor as it only happens when I pull the phone out of my pocket and not when it is sitting on the table. Does anyone have any solution to this?

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