Develop Bugs

Device wake issues (power button ignoring first press)..

Hi,
I've had my M9 for a couple of weeks now, and slowly getting it to work how I want it to. One thing nagging me is this weird issue I have with waking the device from sleep.
I have tried to disable all the gesture/smart wake features (double tap the screen, etc). The issue I'm having seems to relate to the light and/or proximity sensor. It seems (and I haven't been able to find any info on this, online or on the phone) that there is a feature which will enable the device to wake up when being picked up or taken out of my pocket. This doesn't always work, but sometimes it does. When I pull my phone from my pocket, it will sometimes wake up. When I glide my finger over the front camera & light sensor, it will sometimes wake up. This is a minor annoyance, as I would like to only be able to wake my device by hitting the power button.
It gets really annoying when these 'gesture' wakes start to interfere with the power button wake. For example (and this is happening more often than not), when I pull my phone out of my pocket, the phone is off, then I hit the power button once, and the phone still doesn't wake. Hitting the power button a second time will wake the device. It seems to me that the smart waking is some how interfering with the manual waking.
Is anyone else seeing this behavior?
Any suggestions for a solution?
Thanks a lot for any help.

This is really odd considering the M9 doesn't support air gestures. Sorry, I have no solution, but is it possible you may have installed an app that may be causing this?

I would think two button push would be the normal, otherwise you could accidentally hit it once and turn the screen on. Do you have Ambient display and pocket detection all turned off ?
Gravity Screen in the play store gives you total control of all that stuff

That for the replies guys.
Clsa, there is no way to disable ambient display & pocket detect because those features do not exist on the M9 (at least... Not that I have found). That's what is bugging me.
I don't think the 2 button press is normal. I've never had to do it on previous phones.
Fernand - not sure if it is another app causing it. I think I have no extra apps installed compared to my last phone.
I just tried Gravity Screen, and it seems to just give me the ability to enable all the features I want to disable.
Any other suggestions?

[email protected] said:
That for the replies guys.
Clsa, there is no way to disable ambient display & pocket detect because those features do not exist on the M9 (at least... Not that I have found). That's what is bugging me.
I don't think the 2 button press is normal. I've never had to do it on previous phones.
Fernand - not sure if it is another app causing it. I think I have no extra apps installed compared to my last phone.
I just tried Gravity Screen, and it seems to just give me the ability to enable all the features I want to disable.
Any other suggestions?
Click to expand...
Click to collapse
Settings / Display & Gestures / Ambient display (Wake screen when device is picked up or notifications arrive)
Pocket Detection is part of some Rom Tweaks (insertcoin & viperOne if i remember right)

Hi again, that option is not available on my phone. Do you see it on your M9?
I don't have a custom ROM. Not rooted either.

[email protected] said:
Hi again, that option is not available on my phone. Do you see it on your M9?
I don't have a custom ROM. Not rooted either.
Click to expand...
Click to collapse
Yes I have it, but I'm on LeeDroid right now. He adds so much stuff i forget whats "custom" and whats stock

Got the same issue
The power button will ignore the first push while standing by for a long time. Thought it might be caused by apps like greentify?

Hi Ducati, is that a fact or is that just how you understand it? Seems strange that that would be intentional. But it definitely seems to be the case.
I do not have greenify installed either.
Do you get similar behaviour on your One?

After a bit more testing. I can confirm that there are some sort of air gestures on this device. I can wave my finger in front of the front light sensor/camera, and the device will wake.
This doesn't happen all the time, I am not always able to reproduce this. But right now, it is happening. Can anyone else reproduce this?
http://somevid.com/N1OnU8JS

I have the same issue on my M9. Glad I found this thread. Thought my power button was defective.
I can't activate any gestures by waving my hand.
I think it's happening mostly when waking from deep sleep.

I know it's an old thread, but I just installed CyanogenMod 12.1 and I guess my google-fu is rusty. I find that if I hit the power button in quick succession (double click) it turns off the phone. Anyone know how I can stop this?
By quick succession I mean multiple times within 20 seconds

[Q] sometimes screen won't turn on when I double tap to wake.

Hello,
I just bought LG G4 for a week . It perfect in every way, I love camera so much.
But I have one problem ,sometimes double tap to wake is not work properly no matter I try to knock ( knock slow or fast)
Until I need to press the button at the back, and then screen is turn on and I can use knock on again.
Is my G4 is normal ?
Thank you for your answer
Jo

It happens. For many it's rare and others it's more common. Mainly it's because of the touchscreen issues the g4 has.

Happens occasionally for me. Just tap a little harder.

ange1us said:
Hello,
I just bought LG G4 for a week . It perfect in every way, I love camera so much.
But I have one problem ,sometimes double tap to wake is not work properly no matter I try to knock ( knock slow or fast)
Until I need to press the button at the back, and then screen is turn on and I can use knock on again.
Is my G4 is normal ?
Thank you for your answer
Jo
Click to expand...
Click to collapse
If you have a knock code set up, try tapping the knock code instead of double tap. Occasionally, even when the phone should be unlocked, it'll wake up from the knock code but not the double tap. I discovered this when I got frustrated and double tapped repeatedly, then the screen came on and said if I entered the knock code incorrectly one more time I would be locked out.

ange1us said:
But I have one problem ,sometimes double tap to wake is not work properly no matter I try to knock ( knock slow or fast)
Jo
Click to expand...
Click to collapse
Same problem here, my phone looks like is deeply sleeping
i have to try tapping at least 3-4 times in order to wake it up,
it begins to be frustrating! If it helps i have a 10B fw

Mine can work even with a very light touch, almost like a normal finger press to select an icon when the phone is on. Usually I would tap somewhat harder, but out of curiosity I tried a very light touch and it still worked to wake the phone.

Try tapping on the upper half of the screen. Sometimes the Smart lock is activated after 4 hours of un use.
Sent from my LG G4 H815 USA 4G LTE TMO

KingFatty said:
Mine can work even with a very light touch, almost like a normal finger press to select an icon when the phone is on. Usually I would tap somewhat harder, but out of curiosity I tried a very light touch and it still worked to wake the phone.
Click to expand...
Click to collapse
it doesn't matter if you tap lightly or harder
this is not a resistive type of screen (like in the old days where you have to tap harder for the screen to register touches), but capactive
capactive screens don't differentiate between taps - every tap is the same
the issue is with LG - this is a known bug where some taps do not register and thats why double tap to wake doesn't work properly
this has been a number 1 problem for me with this phone
I have to tap like a maniac most of the time, before phone will wake up..

For awhile the G2 had a similar issue. One trick that helped me: on your last tap, hold it for a bit longer. So if you you have it set to unlock when you double tap, instead of a quick tap, tap you would go tap, taaap. I know that sounds weird, but by holding the last tap it seemed to register the code better, for whatever reason.
Good luck! As always, YMMV.

Mine does this, especially when charging. Tapping on the top left works almost always.
Sent from my VS986 using Tapatalk

I have found that if you have any type of security lock on the phone it doesn't work when tapping in the area of the lock (knock code area or pin). Even when smart lock is enabled I have noticed only tapping in the upper third of the screen will the phone wake up.

I have more success with knock code when screen is off than double tap, but I don't like having the code so I deal with the missed taps. Can anybody with the latest firmwares chime in here? I haven't updated ls991 to zv5 yet cause I don't want to deal with the "1" bootloader thing

Guys its not a bug dont double tap the corners of your phone it will not work just tap middle of the screen. Always work for me
Sent from my LG-H815 using Tapatalk

phineous said:
If you have a knock code set up, try tapping the knock code instead of double tap. Occasionally, even when the phone should be unlocked, it'll wake up from the knock code but not the double tap. I discovered this when I got frustrated and double tapped repeatedly, then the screen came on and said if I entered the knock code incorrectly one more time I would be locked out.
Click to expand...
Click to collapse
Thanks, I had no idea I could tap the unlock code with the screen off! Works flawlessly, fast or slow!! Thanks again for this!!!

DylanTheVillian said:
Thanks, I had no idea I could tap the unlock code with the screen off! Works flawlessly, fast or slow!! Thanks again for this!!!
Click to expand...
Click to collapse
Glad this helped!
I've discovered that Smart Lock doesn't always unlock the phone when connected to a trusted bluetooth device (especially if the device isn't in use but just connected), or when using a trusted place but not enabling High Accuracy for location. In these cases, the knock screen is waiting on the blank screen and it won't take double tap to unlock.
I turned on High Accuracy locations and double tap almost always works at home. If the bluetooth device is in use (streaming media, etc.) double tap also almost always works too.

Hi all, i also have a tap issue on my lg g4, the lg service repairman said they would replace my front cover, is this the proper way to solve the tap/touchscreen issue? Please help me as i am really frustrated with my g4. Thanks and God Bless! John Aleta

johnaleta said:
Hi all, i also have a tap issue on my lg g4, the lg service repairman said they would replace my front cover, is this the proper way to solve the tap/touchscreen issue? Please help me as i am really frustrated with my g4. Thanks and God Bless! John Aleta
Click to expand...
Click to collapse
FWIW, If you are on Verizon, a new update has been released which is supposed to help with the touch issues.

Is this covered by the new LG warranty announcement?

phineous said:
If you have a knock code set up, try tapping the knock code instead of double tap. Occasionally, even when the phone should be unlocked, it'll wake up from the knock code but not the double tap. I discovered this when I got frustrated and double tapped repeatedly, then the screen came on and said if I entered the knock code incorrectly one more time I would be locked out.
Click to expand...
Click to collapse
My wake up double tap became intermittent a couple of weeks ago after flawlessly working for months.
Thanks for the tip :good:

Mine's worked great for 2 years. Just started being tempermental with no clear pattern of usage differences between when it does work and when it does not work. argggggggggggg

KnockON (''double tap'') and Glance View not working properly - LG G4 H815

Hi everyone,
I have an LG G4 H815 model, upgraded to Marshmallow six months ago. Last month, the device started to have a boring problem with the KnockON function. Basically I can't wake up the display while the device is locked: the double tap is not working properly, it works every 6-7 times I try the double tap. Neither the Glance View is working, and when I try to do it, rarely It unlocks the screen: seems that the device in that case sees the Glance View gesture as a double tap.
I've already tried everything: hard reset, downgrade to Lollipop, another hard reset, proximity sensor test with multiple app. Everything works fine, also the double tap to lock, the touchscreen works perfectly. The only problem is the KnockON and Glance View while the G4 is locked. I don't have any kind of case and screen protector.
Any ideas about how can I solve this?

identical issue
alby961 said:
Hi everyone,
I have an LG G4 H815 model, upgraded to Marshmallow six months ago. Last month, the device started to have a boring problem with the KnockON function. Basically I can't wake up the display while the device is locked: the double tap is not working properly, it works every 6-7 times I try the double tap. Neither the Glance View is working, and when I try to do it, rarely It unlocks the screen: seems that the device in that case sees the Glance View gesture as a double tap.
I've already tried everything: hard reset, downgrade to Lollipop, another hard reset, proximity sensor test with multiple app. Everything works fine, also the double tap to lock, the touchscreen works perfectly. The only problem is the KnockON and Glance View while the G4 is locked. I don't have any kind of case and screen protector.
Any ideas about how can I solve this?
Click to expand...
Click to collapse
i have the same issue,some solve ?

Well another victim suffering from the same problem here. Really getting sick of this device man.

I've tried with the Always On app from the Play Store, which allows to double tap to unlock. And it works perfectly with this application. Now I'm sure that we're talking about a software problem

alby961 said:
I've tried with the Always On app from the Play Store, which allows to double tap to unlock. And it works perfectly with this application. Now I'm sure that we're talking about a software problem
Click to expand...
Click to collapse
That is the feature of the application if you look carefully at the details on its google play page. When you use the app, your display will always be on. It is not related to the original double tap to wake already which is supposed to work when the screen is off. So I would assume it's still a hardware problem. Goshhh why are there so many hardware problems with LG?

Diatomix98 said:
That is the feature of the application if you look carefully at the details on its google play page. When you use the app, your display will always be on. It is not related to the original double tap to wake already which is supposed to work when the screen is off. So I would assume it's still a hardware problem. Goshhh why are there so many hardware problems with LG?
Click to expand...
Click to collapse
You're right...Didn't assume that problem.

Hardware issue
I may be wrong, but I feel that this may be a screen/connector issue. I have two G4s, one has the KnockON issue described in this thread, and the other one doesn't have the issue. I recently had to put the mainboard of the G4 with functioning KnockON into the chassis of the G4 with the malfunctioning KnockON. When I did the switch, KnockON was problematic even though it it worked perfectly when in the other chassis. I switched the boards again to make sure I didn't break something, and sure enough, KnockON was working as it should when the mainboard was put back into it's original chassis. KnockON even worked with the mainboard from the problematic phone, when it was put into the other chassis which didn't have KnockON problems.
This leads me to thinking that there's a problem with either the screen or the mainboard connector. I could be wrong though...

alexkalicharan said:
I may be wrong, but I feel that this may be a screen/connector issue. I have two G4s, one has the KnockON issue described in this thread, and the other one doesn't have the issue. I recently had to put the mainboard of the G4 with functioning KnockON into the chassis of the G4 with the malfunctioning KnockON. When I did the switch, KnockON was problematic even though it it worked perfectly when in the other chassis. I switched the boards again to make sure I didn't break something, and sure enough, KnockON was working as it should when the mainboard was put back into it's original chassis. KnockON even worked with the mainboard from the problematic phone, when it was put into the other chassis which didn't have KnockON problems.
This leads me to thinking that there's a problem with either the screen or the mainboard connector. I could be wrong though...
Click to expand...
Click to collapse
I know there is a little rubber plug in the prox sensor a lot of people forget to put in theyre new lcds. And it causes knockon not to work very good

Hello,
I had the same problem as well, it seems that I loose the setting from time to time...
I found the solution already in the forum but cannot find it again.
Here it is :
1) Install quickshortcutmaker from the playstore
2) select "normal search"
3) search for "knock on"
4) launch the setting with the "try" option
5) see if the box for knock on is ticked (if not tick)
that's it, I hope it helps

The screen protector.
Make sure its nt envolving the proximity sensor

I've already tried with the shortcut app, but it wasn't useful because KnonON was ticked. I don't have the screen protector, so I suppose that the problem is related to the screen or the proximity sensor itself. Today i'm gonna open the phone and check if there is something wrong, or maybe I'll take it back to the customer service at the shop

It doesn´t matter what you tried, I talked to an LG tech lately, it´s a hardware issue. The proximity sensor is partly defective, so all these software workarounds don´t work. Period.

Missing option
marcge 63 said:
Hello,
I had the same problem as well, it seems that I loose the setting from time to time...
I found the solution already in the forum but cannot find it again.
Here it is :
1) Install quickshortcutmaker from the playstore
2) select "normal search"
3) search for "knock on"
4) launch the setting with the "try" option
5) see if the box for knock on is ticked (if not tick)
that's it, I hope it helps
Click to expand...
Click to collapse
Since I have problems that I cannot manage to solve with the KNOCK ON function (sometimes it doesn't work while most of the time a simple slide is enough to wake up the screen, turning it on while in my pocket) I wanted to turn it off with the quickshortcutmaker app, but it seems like I simply do not have the knock on setting. If I search "knock on" it gives me no results, while typing "knock" only the knock code wizard is found. I have done a factory reset last week, but I still have the same problem.
How is it possible that I cannot find the Knock On option even though I can still turn on the phone with the double tap? Anyone had the same issue?

I have the opposite problem. Mine is too sensitive; when I tap once and then again a few minutes later, this is registered as double tap! This means that the screen turns on itself in my pocket all the time. If I blow on it, it can turn on!
I'm not using a screen protector and the screen is clean. I think this started after I left the phone in the sun for a long time while hiking. The proximity sensor, light sensor and touch are fine.
I have not found a fix so just disabled KnockOn as @marcge 63 suggested.
---------- Post added at 09:13 PM ---------- Previous post was at 09:12 PM ----------
Lando90 said:
Since I have problems that I cannot manage to solve with the KNOCK ON function (sometimes it doesn't work while most of the time a simple slide is enough to wake up the screen, turning it on while in my pocket) I wanted to turn it off with the quickshortcutmaker app, but it seems like I simply do not have the knock on setting. If I search "knock on" it gives me no results, while typing "knock" only the knock code wizard is found. I have done a factory reset last week, but I still have the same problem.
How is it possible that I cannot find the Knock On option even though I can still turn on the phone with the double tap? Anyone had the same issue?
Click to expand...
Click to collapse
Search for 'Settings' and then under settings is KnockOn

Hi im having this problem too LG G4 F500L on stock nougat suddenly this double tap to wake and glance view bug appeared i tried everything i think this is hardware problem

same here double tap to turn off works everytime but to wake up phone it doesnt sometimes it does.. so maybe hardware or while deepsleep something kernel related.?

Same here. Then i disable knockon function.
LG-H815 cihazımdan Tapatalk kullanılarak gönderildi

Same problem h815
Phone calls(whatsapp call) working perfectly.And screen turning off Itself,proximity sensor working but double tab unlock Or knockCode not working properly.this is lcd screen problem or Kernel Problem? Now im using imperium rom.sometimes screen opening itself And i try 1-2-3-~ tap and opening 5 -10 second later.this is a NEW PROBLEM

Wow so many in here with this bug i hate this double tap to wake not working im trying to downgrade to lollipop to see if the problem will go away but too bad nougat have an anti rollback i guess i will use my power button now lol

So i came back to where i bought this phone they say my sensor are malfunctioning and need to be replaced so i guess its really a hardware problem

Alternative to "tap to wake": "wave to wake"

I've seen lots of people complaining that Mi A1 does not have "tap to wake" feature. I personally don't miss it since i'm using the fingerprint reader to wake and unlock in one go.
However, I've seen and tested that small free and open source app: https://play.google.com/store/apps/details?id=com.jarsilio.android.waveup
With this, you can wake phone by "waving" your hand above the proximity sensor.
I've put it on my A1 for 1,5 day now, and have seen no battery drain Developer explains:
Unfortunately, some smartphones let the CPU on while listening to the proximity sensor. This is called a wake lock and causes considerable battery drain. This isn't my fault and I cannot do anything to change this. Other phones will "go to sleep" when the screen is turned off while still listening to the proximity sensor. In this case, the battery drain is practically zero.
Click to expand...
Click to collapse
But it seems on A1 we are good to go.
I know it's not exact same feature than "tap to wake", but you might still want to give it a try if you're looking for a way to wake phone without using hardware button. As well it can wake the phone when taken out of pocket!

BtB said:
I've seen lots of people complaining that Mi A1 does not have "tap to wake" feature. I personally don't miss it since i'm using the fingerprint reader to wake and unlock in one go.
However, I've seen and tested that small free and open source app: https://play.google.com/store/apps/details?id=com.jarsilio.android.waveup
With this, you can wake phone by "waving" your hand above the proximity sensor.
I've put it on my A1 for 1,5 day now, and have seen no battery drain Developer explains:
But it seems on A1 we are good to go.
I know it's not exact same feature than "tap to wake", but you might still want to give it a try if you're looking for a way to wake phone without using hardware button. As well it can wake the phone when taken out of pocket!
Click to expand...
Click to collapse
I've just installed it, thanks for the tip !! if you have more...

Thank you very nice. Working nice so far and no high battery usage

Thx for sharing nice app
Sent from my Mi A1 using XDA Labs

First of all, thank you for the recommendation. This app is working flawlessly for now but I'm just curious about a feature. I have enabled the feature that allows to cover the proximity sensor to lock the screen. It needed device admin permission for that. Now, when I wave to wake it up, it takes me to the enter pin screen instead of fully unlocking so I have to enter the pin to unlock the device because it says that the device is locked by admin. Is there a workaround to bypass this one extra step?

ShaggyPG said:
First of all, thank you for the recommendation. This app is working flawlessly for now but I'm just curious about a feature. I have enabled the feature that allows to cover the proximity sensor to lock the screen. It needed device admin permission for that. Now, when I wave to wake it up, it takes me to the enter pin screen instead of fully unlocking so I have to enter the pin to unlock the device because it says that the device is locked by admin. Is there a workaround to bypass this one extra step?
Click to expand...
Click to collapse
This looks like the Nova's "double tap to lock" feature. If you're not rooted you need to grant admin permission to lock the screen, which requires PIN everytime you log back in.

Exactly, if you're not root, the "lock" feature is no good if you use fingerprint, I have disabled it, anyway phone goes to sleep on its own.

You should also check out KinScreen (https://play.google.com/store/apps/details?id=com.teqtic.kinscreen), it does wave to wake and also has many options to control when the screen stays on. For example, you can set it to stay on when your phone is at more than a 45° angle (like most times you're on your phone, reading something).

BtB said:
I've seen lots of people complaining that Mi A1 does not have "tap to wake" feature. I personally don't miss it since i'm using the fingerprint reader to wake and unlock in one go.
However, I've seen and tested that small free and open source app: https://play.google.com/store/apps/details?id=com.jarsilio.android.waveup
With this, you can wake phone by "waving" your hand above the proximity sensor.
I've put it on my A1 for 1,5 day now, and have seen no battery drain Developer explains:
But it seems on A1 we are good to go.
I know it's not exact same feature than "tap to wake", but you might still want to give it a try if you're looking for a way to wake phone without using hardware button. As well it can wake the phone when taken out of pocket!
Click to expand...
Click to collapse
Thanks bro

You can basically use double tap to wake with this, just enable it and tap your proximity sensor to wake.

Double tap to wake

I got the phone today, any information why double tap to wake is not possible. or activated ?

I have no idea, but I would also very much like to know. I miss my double tap...!

Same here, just received the phone: Quality seems quite good but I'm surprised this basic functionality (double tap to wake) is not available.
From what I read, if it's not implemented at kernel level then no apps can bring it to the phone ...
If anyone has more info, that would be great!

As an alternative this app can be tried. It wakes the device up by wave gesture.
It must be checked if Mi A2 Lite still goes to deep sleep mode and doesnt stay awake when app is active (hint by dev that some devices have problems)
Also it must be checked if Fingerprint is working without any issues like re-enter PIN after fingerprint unlock

Same problem, got the phone last saturday... it seems that the oreo version has it but our phone's didn't...

This ROM is extremely light so they removed most of the common features.
Let's just wait for a semi-official Lineage release for A2L.

Or you can wait until someone builds a kernel for this device. Many Kernels enable tap to wake functionally.

iLovPieNCake said:
Or you can wait until someone builds a kernel for this device. Many Kernels enable tap to wake functionally.
Click to expand...
Click to collapse
I thought the finger print sensor would make tap to wake useless lol.

I got the phone 3 days ago. Double-tap to wake works from day one.
I really wish I could turn it OFF.
Ambient Light is Off, TalkBalk is Off but phone still wakes up in my pocket all the time.
Anyone know how to turn this feature Off please?

alfiean said:
I got the phone 3 days ago. Double-tap to wake works from day one.
I really wish I could turn it OFF.
Ambient Light is Off, TalkBalk is Off but phone still wakes up in my pocket all the time.
Anyone know how to turn this feature Off please?
Click to expand...
Click to collapse
As it turns out, this phone comes with two types of display CSOT & EBBG.On csot, the double tap works, but it can not be turned off, and on ebbg it does not work.

alfiean said:
I got the phone 3 days ago. Double-tap to wake works from day one.
I really wish I could turn it OFF.
Ambient Light is Off, TalkBalk is Off but phone still wakes up in my pocket all the time.
Anyone know how to turn this feature Off please?
Click to expand...
Click to collapse
can u show us the d2tw option? with a little vid maybe

mrmcphisto77 said:
can u show us the d2tw option? with a little vid maybe
Click to expand...
Click to collapse
Sure

I am on mi a2 lite. No d2tw here

mrmcphisto77 said:
I am on mi a2 lite. No d2tw here
Click to expand...
Click to collapse
On stock Launcher?
I am not liking this feature at all, wish I could stop it.

alfiean said:
On stock Launcher?
I am not liking this feature at all, wish I could stop it.
Click to expand...
Click to collapse
yes stock launcher and even if i install alternative launcher, since not rooted, every tme i lock screen with double tap to sleep it asks for pin, sequence or other, very annoying...

mrmcphisto77 said:
yes stock launcher and even if i install alternative launcher, since not rooted, every tme i lock screen with double tap to sleep it asks for pin, sequence or other, very annoying...
Click to expand...
Click to collapse
Strangely, on my A2 Lite, double tap only wakes up the screen. Double tapping when screen is awake does nothing at all.
I emailed Xiaomi Support about this, asking how I could disable the waking up. The reply came from Xiaomi Support Malaysia:
Go to the Settings - Select Accessibility - Select advanced settings - Turn on the pocket mode option​
I replied, "There is no Advanced Settings under Accessibility. There is also no setting available when I search for pocket or double or tap twice."
Their advice was to backup and perform a Factory Reset, which I think is nonsense.

alfiean said:
Strangely, on my A2 Lite, double tap only wakes up the screen. Double tapping when screen is awake does nothing at all.
I emailed Xiaomi Support about this, asking how I could disable the waking up. The reply came from Xiaomi Support Malaysia:
Go to the Settings - Select Accessibility - Select advanced settings - Turn on the pocket mode option​
I replied, "There is no Advanced Settings under Accessibility. There is also no setting available when I search for pocket or double or tap twice."
Their advice was to backup and perform a Factory Reset, which I think is nonsense.
Click to expand...
Click to collapse
well... no options like those for me too... it is really frustrating...

luiszevs said:
As it turns out, this phone comes with two types of display CSOT & EBBG.On csot, the double tap works, but it can not be turned off, and on ebbg it does not work.
Click to expand...
Click to collapse
What application is in the screenshots?

Akbhar said:
What application is in the screenshots?
Click to expand...
Click to collapse
*#*#6484#*#* line #1

so there are 2 version of A2 Lite which has and has no double tap to wake, we have to accept it as they are, but which is better or worse?