Help! WhatsApp and other Apps notifications don't deliver when phone screen is locked - Samsung Galaxy S9+ Questions & Answers

I noticed this about 2 months ago when I updated my phone. Notification doesn't deliver at times or slow especially when the phone screen is locked. Only default SMS app delivers notification in locked screen. Other apps such as WhatsApp and Yahoo mail don't deliver notification especially when the screen is locked until I opened my WhatsApp to see messages sent several minutes ago just delivering. This doesn't happen at all times but I noticed this happens most frequently when the screen is locked. Please, I need help I don't know what is wrong with the phone. I'm on SM-G965F.

Same problem here. I tried excluding WhatsApp from battery optimization and nothing changed.
I'm on SM-G9650 with latest software updates. Same with whatsapp.

etche said:
Same problem here. I tried excluding WhatsApp from battery optimization and nothing changed.
I'm on SM-G9650 with latest software updates. Same with whatsapp.
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This is very bad of a Samsung phone bought with over a thousand dollars. I really feel sad about this. It's just make the phone useless.

Guess we are the only ones? I find it hard to believe...

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Problem with Whatsapp

Is it me or anyone else having issues with whatsapp.
Sometimes it just does not notify me of a new msg, until I open the application (whatsapp). Probably, I guess its a glitch on the application side and not with Windows 7.5.. just comfirming, if others too are facing the same problem?!
same here with kik (whatsapp like)
if the lumia is on standby mode I receive new messages only when I unlock the screen and open the app
hmm.. seems like windows stops the installed application on standy mode... as the integrated mail system works fine.
I don't know if it's right or these apps aren't mango optimized
I have spotify streaming great even with the screen locked
same here ... i also think the start up is very slow
I have noticed this problem after the whatsapp update for group chat...
alright so its almost confirmed its the problem with the software and not our windows mango.. hope the developers tries to fix it, if its fixable..
how is the battery drain after installing whatsapp.
I had installed whatsapp sometime back on my Nokia E71 and it completely trashed the battery (I mean 100 to 0 in 2 hrs without even using the phone sometimes)
So is the version of whatsapp for wp7 better to battery
well Haven't noticed any significant drain..
I didn't notice battery draining but i have some issues too. It does notify new message also when the application is closed but when i open it i can sit down and wait till the next day to see the new message. I can say after a month experience that it works very bad.
WhatsApp for WP7 is glitchy and I think it does impact the battery. The developer really need to fix and optimize it better.
Yes, it seems to eat up the battery like crazy. My Lumia has pretty mediocre battery life already, but WhatsApp makes it even worse. Today I unplugged at 100%, sent 5 messages, received 7, and then left it alone. Less than an hour later I came back to find that my battery is now at 85%.
Not to mention that messages (on EDGE, mind you), take at least 10 minutes to deliver/receive. On WiFi it's almost instantaneous.
JMBasquiat said:
Yes, it seems to eat up the battery like crazy. My Lumia has pretty mediocre battery life already, but WhatsApp makes it even worse. Today I unplugged at 100%, sent 5 messages, received 7, and then left it alone. Less than an hour later I came back to find that my battery is now at 85%.
Not to mention that messages (on EDGE, mind you), take at least 10 minutes to deliver/receive. On WiFi it's almost instantaneous.
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battery is still great after whatsapp.
have you ever used an android? battery does not last more than 24 hours.
anyway lets hope dev fix whatsapp asap. some times i do not receive new sms till i start application.
Not sure about the battery issue. But I did notice a few things about WhatsApp.
1. It does receive messages when its lying on my desk, if you have the tile for this enabled. Not sure if works with Tile disabled.
2. It only picks up Windows live phone numbers, and not FB phone numbers, even though both numbers are visible in the contact list and available in other apps, e.g. Voxofon, etc.
3. Battery issue, yes it does seem to consume a little extra battery with this app.
IMO, the app is not really optimised for WP environment, and is just a quick place-holder port onto this OS.
I really hope they update the app to fix the issue with accessing the FB numbers from Contact list.
EDIT:
Another suggestion for WhatsApp developers will be to use an IM service gateway, so that the WhatssApp messaging can be integrated into the beautiful messaging system in WP by just adding an account into the email/accounts menu.
This will allow users to seamlessly switch from text to WhatsApp to FB and so on, without losing the thread.
There's a new update for Whatsapp.
Another Problem.. dont know How did i missed to mention it, the first time...
is anyone able to open the received pictures from whatsapp..?!!
Mr.Sanju said:
Another Problem.. dont know How did i missed to mention it, the first time...
is anyone able to open the received pictures from whatsapp..?!!
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Yes, pictures send/receive works fine. If on G it takes forever, fast and seamless on 3G/WiFi.
Itaintrite said:
There's a new update for Whatsapp.
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Which is the latest version...
I had mine last week and I dont see any updates to it
shamreez said:
Which is the latest version...
I had mine last week and I dont see any updates to it
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1.6
I did uninstall/install to get the update as it refused to prompt me although I had 1.5 installed.

whatsapp wakeup too late

hey.. i got some probs with my l800 and whatsapp. When i´m not using it, and someone send me a message -> whatsapp dont wakeup to show me that message. Why? After 5-15 min. it shows me all the message for what im waiting for.. so how can i change it so, that whatsapp is permantly on task?
lkay2011 said:
hey.. i got some probs with my l800 and whatsapp. When i´m not using it, and someone send me a message -> whatsapp dont wakeup to show me that message. Why? After 5-15 min. it shows me all the message for what im waiting for.. so how can i change it so, that whatsapp is permantly on task?
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You can't, stupid Windows OS doesn't allow it for some reason.
Same to my phone
its really annoying with all IM programs... a slow 3g makes it even worse, if you are lucky, you can read the push notification, if you are not...well then you have to wait 5 minutes to read it
WhatsApp is crap on WP.
But it's not that bad for me. Push notifications always work. I get the messages quickly. Thing is when opening WhatsApp it can take like 5 seconds for the message to show up in the thread. Laggy as hell.
For that reason I have switched to Kik Messenger. Works much better on WP than WhatsApp.
dannejanne said:
WhatsApp is crap on WP.
But it's not that bad for me. Push notifications always work. I get the messages quickly. Thing is when opening WhatsApp it can take like 5 seconds for the message to show up in the thread. Laggy as hell.
For that reason I have switched to Kik Messenger. Works much better on WP than WhatsApp.
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I tried kik too, but it never loaded messages for me
Whatsapp is indeed extremely poorly coded. I'm still wondering how it passed the certification considering its general sluggishness,its ugly design (come on, look at the thread bubbles) and its high CPU utilization (it really taxes the battery a lot).
I noticed the delays can either come from the network (slow 2G or 3G, or simultaneous 3G+Wi-Fi poor handling) or Whatsapp servers. The worse I've seen is 12 hours delay (overnight in fact). The notifications work just fine though.
thanks for answers... i was n android user till i bought a wp7. I like the os but there are some bugs in there.. ms like...
lkay2011 said:
thanks for answers... i was n android user till i bought a wp7. I like the os but there are some bugs in there.. ms like...
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I don't see why it is an MSFT issue. The OS is way more reactive and polished than Android. They're tons of quality apps - Whatsapp isn't just one.
I have whatsapp and have no issue with it, over 3g or wifi

Delayed, or non, live notifications

Hello all,
I have used my LeECo max 2 for about a month. In the beginning, before I updated to S17 from S14, I didn't have any problems with notifications. After the upgrade I have a serious problem with live notifications. Apps like WhatsApp, Gmail, Messenger, Skype, and more, might show messages immediately, with a short or long delay (min and sometimes hours), and not even show anything until I reopen the app. I made sure that the wanted apps have permission to run when the phone boots up and add them to the app protection list in the battery menu. I found out that S19 was just released a few days ago (leaked) and I had to try it to see if it solved the problem, which it didn't. I even tried to install 'heartbeat fixer' and 'notification fixer', which didn't really helped.
I really enjoy this phone, but I can't take it anymore. I can't get late email and messages, and I don't want to reopen the apps to make sure to not miss any important messages.
Did anyone had that problem and was able to solve it?
Any suggestions will be highly appreciated.
Thank you
same happened to me and i also spent way to much time trying to fix it, so I changed to cm13 rom
Do you know if I can install the latest twrp after upgrading to s19?
Almog6k said:
Do you know if I can install the latest twrp after upgrading to s19?
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yeah it's fine, i installed it while on s19

[Q] Notification Delay Problem.

Hey everyone,
I've been having this awful problem with some of my apps (not all) on my Xiaomi Mi 8 Lite phone, running the 10.2.2.0 Global Stable ROM. Most of the times there's a delay in receiving the notifications - sometimes I get them instantly, sometimes the delay is just 2-3 minutes, but sometimes it's a lot more than that.
I literally tried every single option and guide on how to receive notifications instantly (e.g. this one right [**HERE**](http://en.miui.com/thread-268224-1-1.html)), but sadly non of this fixed the issue. I even rooted the phone, just to be able to convert some apps to system apps as stated in the guide above, but that didn't help either.
Having the absolute same issue on my other phone - a Redmi 5 Plus, which leads me to believe that it's not the particular phone, but most probably a MIUI thing. These same apps deliver notifications instantly on a Samsung or an HTC.
Does anyone here experience the same and is there a fix for that? Thanks!
It's more like an android thing, I've got that in all my phones so far.
It's a matter of MiUI, it needs to polish a lot the issue of notifications, especially for teams that have notch ...

Oppo Reno 2 Z glitches?

Have a few things I have experienced that has bugged me so far in me 1 week of ownership.
Never use auto brightness but somehow out of the blue gets stuck on full brightness 2 times now.
Moving slider won't have an effect.
Reset phone fixes this..annoying as I will exit an application and BAM full 1000 nits
Second I have 3 email accounts including Gmail and they don't update unless I head into the emails and refresh...a few emails get through and I get notifications but most I notice when I refresh...annoying.
I had the first issue under Color Os6 with my Reno 2. Looks like Color Os7 solved it.
It felt to me like the phone "remember" the previous darkness on an application and put the same on when you go back to it.
For Gmail, same issue too. Lots of people are bored at it... Look at any other mail APK ?
Yes these issues are on ColorOS 6.1.
Might have to VPN my update as Australia still hasn't received the update to 7.
As an Oppo Reno 2 owner didn't have all these problems as the update came only one day after buying the phone. All I can say is that specially Gmail was the first app I uninstall and went to outlook app and notifications are right in time. Forget Gmail and try another email app that it will work better for sure.
goulash2011 said:
Yes these issues are on ColorOS 6.1.
Might have to VPN my update as Australia still hasn't received the update to 7.
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Same. They're saying June now. Like the phone, not too impressed with the updates.
I found Bluetooth to be buggy at times. Phone connects for calls but media doesn't auto connect.
Jus managed to grab colorOS7 no brightness errors so far...

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