Develop Bugs

[Q] Grey signal and WiFi bars?

Hi all,
I was just wondering why sometimes my signal and WiFi bars turn grey and often can't make/send calls/data. I thought no signal or WiFi was indicated differently, especially since I can get full grey bars I doubt it's a signal problem.
I've attached a screenshot to show what I mean

cmonthegas said:
Hi all,
I was just wondering why sometimes my signal and WiFi bars turn grey and often can't make/send calls/data. I thought no signal or WiFi was indicated differently, especially since I can get full grey bars I doubt it's a signal problem.
I've attached a screenshot to show what I mean
Click to expand...
Click to collapse
it means that you are not logged into google services.
and since most of the apps run with google services (stock browser as well), if you are not logged in, they will not response and keep trying.
if somehow u have other browser like dolphin, or firefox, it should still work.

qwerp_ said:
it means that you are not logged into google services.
and since most of the apps run with google services (stock browser as well), if you are not logged in, they will not response and keep trying.
if somehow u have other browser like dolphin, or firefox, it should still work.
Click to expand...
Click to collapse
Thanks. Is there anyway you can force it to reconnect? It seems to be happening more and more lately

There isn't a lot you can do if the phone is stock. You can pull the battery often to see if that helps, check your' network settings and make sure that it is all set correctly. Finally master reset and re-log into your' gmail account.
Other option is to unlock the bootloader and root the device:
If you go the unlock/root route I would recommend flashing a custom radio.img file such http://forum.xda-developers.com/showthread.php?t=1374077
If you need instructions on how to go the root method:
http://forum.xda-developers.com/showthread.php?t=1352413
In an emergency to un-root the device:
http://forum.xda-developers.com/showthread.php?t=1366806
Hope this helps.
Justin

JTECJ said:
There isn't a lot you can do if the phone is stock. You can pull the battery often to see if that helps, check your' network settings and make sure that it is all set correctly. Finally master reset and re-log into your' gmail account.
Other option is to unlock the bootloader and root the device:
If you go the unlock/root route I would recommend flashing a custom radio.img file such http://forum.xda-developers.com/showthread.php?t=1374077
If you need instructions on how to go the root method:
http://forum.xda-developers.com/showthread.php?t=1352413
In an emergency to un-root the device:
http://forum.xda-developers.com/showthread.php?t=1366806
Hope this helps.
Justin
Click to expand...
Click to collapse
I'm already rooted and running the XXIK6 radio. I'll try logging out and back in to see if that helps. Thanks

This happened to me the other day, was so annoying!
Although the blue bars do show whether it's connected to Google services etc, there must be more to it as I couldn't make any calls or anything like that. I went in and out of airplane mode, restarted the phone etc but nothing helped, so I just assumed it was something to do with my network and left it for a while and it sorted itself out in the end.

I have the stock phone. I forced it to see the network by going to Settings, Wireless & Networks, More, Mobile Networks, Network operators. This will force a scan to see what networks are available. Pick AT&T (assuming that who your provider), and it should turn on the Cell Service.
If it does not work, try going to an AT&T owned store and ask for a new Sim Card. (That is what I had to do.) They put it in with no questions, except for marveling at my wonderful SGN. No plan or feature changes happened.
For the Wifi, that is different. Go to Settings, Wireless & Networks, Wifi (and turn it on). You can re-scan for networks anytime. I had 11 networks in range, so it took some looking to find mine. You may need to re-enter the security settings several times to get it right. (Delete old settings by using "forget" below the network you select.) Once it works, it should keep on working with no further adjustments, at least mine does that.
When signals are seen, the grey icons will show blue as a signal strength. (I'm not sure they are accurate.)
Good luck.

All extremely overkill methods...
I used to get this sometimes on all of my Android devices. Simple way to sort it out and sign back in? Your data/wifi is still active - just open Google Talk, go to the list of contacts on it (not in a message, as in you've just signed in) and it'll connect and sync itself straight away... 10 second job, no need to pull out a battery, flash random things, or anything else.

^ this. I just was going to write the exact same thing. Just open up gtalk and you are golden.

El Daddy said:
^ this. I just was going to write the exact same thing. Just open up gtalk and you are golden.
Click to expand...
Click to collapse
Here! Here!
I was pretty shocked to see the suggested methods previous to Gtalk...
If anyone else knows a better way, please share!

Best method is to sort through the code and fix the problem, unless you are all on at&t (which you're not) which would suggest a network issue. However, I have used nearly every android device available...even a few I'm not very proud of. I have never had this issue. My point is Google talk may work and be helpful, but its not a solution/fix.
Justin

It's happened to me a couple of times so clearly not just AT & T nor even just the USA. I waited it out, next time I'll try the Google talk method (not sure if it'll work, Google Voice not currently available in Aus.

Clancy_s said:
It's happened to me a couple of times so clearly not just AT & T nor even just the USA. I waited it out, next time I'll try the Google talk method (not sure if it'll work, Google Voice not currently available in Aus.
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Click to collapse
Thanks everyone for the replies. I'm on O2 in the UK, so it isn't just a States issue as Clancy is experiencing it in Australia too.
I've narrowed it down today though. I've noticed that I only get grey bars when connected to WiFi, and sometimes even then I can't make/receive calls. Pretty much as soon as I disconnect the WiFi and get connected to the mobile network I get reconnected to Google's servers and the bars turn blue again. Weird.

[Q] Notifications wont show when screen off - B510

Hi everyone
I just updated to KitKat B510, NEEurope version. The problem is, that whatever I receive, a whatapp message, an email, the notification wont pop-up (no sound, no nothing), until I unlock the phone.
I don't think it's a WiFi problem (or it might be, it is set to "always keep WiFi on"), because when I unlock the phone, the network is ok, everything is connected.
Please, an advice?

Had the same problem occuring sometimes. Mine had a log of lost network. I dont know if there is a fix. Try factory reset and if that wont help flash b510 again. If its still present, revert to b132.

Thank you. I didn't see the network to drop, I think there is a problem with the sleeping setting.
I made some changes, I changed the profile to normal battery consumption, not smart or ultra battery.
The second was to uncheck WiFi optimization, in settings wifi-> options-> advanced.
Let's see how it goes from now on.

danny_zupa said:
Thank you. I didn't see the network to drop, I think there is a problem with the sleeping setting.
I made some changes, I changed the profile to normal battery consumption, not smart or ultra battery.
The second was to uncheck WiFi optimization, in settings wifi-> options-> advanced.
Let's see how it goes from now on.
Click to expand...
Click to collapse
You did the right steps. It should be fine now.

Thank you. It works, and not so much.
For instance, I have to open facebook after restart, so I can receive notifications (it is set to on at startup manager, it is set to run when screen is off etc.).
But the worst problem is that it doesn't reconnect automatically to known networks. For instance, I come home, my previous phone was reconnecting automatically to my home wifi network, but the P6 not.
I had to go to settings->wifi and then it reconnected (without doing anything more).
Any idea?

danny_zupa said:
Thank you. It works, and not so much.
For instance, I have to open facebook after restart, so I can receive notifications (it is set to on at startup manager, it is set to run when screen is off etc.).
But the worst problem is that it doesn't reconnect automatically to known networks. For instance, I come home, my previous phone was reconnecting automatically to my home wifi network, but the P6 not.
I had to go to settings->wifi and then it reconnected (without doing anything more).
Any idea?
Click to expand...
Click to collapse
Yes. Restore to factory settings.

I'll try that, again, thank you.
But I just did it yesterday, when I reistalled B510.

Didn't work. I wiped everything and still it does the same.
Wi-Fi does not automatically connect to networks whose configurations were already saved. I have to take it to waranty, I don't know what to do more.

Does it work on b132? Mine did that sometimes too on b510. It didnt connect automatically. The avaivable network list came up and had to choose one manually. It remembered passwords.
Im not sure but I think that happened only when connecting to a different wifi than the one used before.

I didn't use it that much on B132, I made the update as soon as I bought it.
It is normal not to connect to a new network, but it's not normal not to connect to a previous used network, known network, for instance at home.
Maybe I'll upgrade to 4.4.4, but I think it will do the same.

Possibility of Android networking hardware being physically disabled via ifconfig.

Using ifconfig Android to enable or disable a network device will effectively control it's powered state. I know this because I am an advanced Linux user. The basic function of ifconfig is the same between devices/architectures, and since all Android devices are based on Linux, i see no reason why this cannot be done.
Currently, when you shut off your wifi or mobile data, its never really off. To confirm this, I shut off my wifi, turned my phone to airplane mode to make sure I wasn't connected, but when I arrived home again later, I still received a couple of new messages from my yahoo mail and kik. My first though was "... The heck?" I knew I wasn't supposed to be able to receive anything. I even had autosync turned off also for good measure. I couldn't explain it at first... Upon checking the timestamp, it revealed to me that I received the notifications the exact moment I arrived home, but the original Sent time from the source is when I was not home. Remember, all data was turned off by me and I did not receive anything the entire time i was out. (airplane mode, and i have no active phone service)
I double-checked and surely enough, my settings were still all off according to what I could see and verify. That tells me it's not really off and it knew I was home and connected to wifi anyway briefly, even though I had it off. That tells me that even though I turned off the wifi and mobile data and set the advanced settings to never "always allow scanning even while turned off" for location services, its STILL on!! Unacceptable. Deceitful. Wrong. When I tell it to turn off I expect it to stay off, dang it...
Talk about unexpected battery drain. Imagine being comfortable in knowing you've shut off all these things, to then find out later that these settings are present just to trick you in to letting your guard down! The question is, why would Google put in place these settings if only to be overridden anyway? There is no reason except their own sneaky one.
My goal here is to recruit someone to build an app or widget for rooted users to physically disable the device via push-button widget or app, not just disassociate from any given wifi AP or mobile data service. (wifi_dassoc kernel command) Anyone with some spare time and knowledge of Android programming and use of ifconfig is welcome. I welcome more than one person also. A team even... Haha. You guys converse and figure it out. I'll be watching, and Thanks! Hope you find this to your liking and interest.
Sent from my SCH-I535 using XDA Free mobile app

Returned home from short trip, Wifi connects but does not function

As the title says, I didn't change anything about the phone's configuration when I was out, didn't download any new apps or change any settings that would interfere like this. No one else has changed my home network in my absence.
Nevertheless, most of my apps, such as Instagram, the Play Store, Twitter, Wikipedia, Chrome; almost all their requests time out. There seem to be short windows where data will load, and Instagram appears to load comments and post metadata, but no images. It's basically unusable. Occasionally an exclamation mark will pop up over my Wifi symbol in the notification center. Strangely, I can still reach my Steam and Battle.net authenticators, but the moment I try loading the Steam app, nothing comes up. It's like the device can only handle plaintext over Wifi.
All of the apps work fine over cellular data.
Also, there is a toast that appears whenever I restart my phone that says "Power On" that I've never noticed before. I was rooted using Xposed, the only modules I used were Snapprefs, Xinsta, Physical Button Music Control, and Greenify Experimental Features, all of which I uninstalled. The toast still appears with the latter two disabled. Only other rooted apps I had besides Xposed were Nova Launcher, Greenify, Busybox, and Root Checker Basic, all of which have been removed but Nova.
I am running 6.0.1 with the latest update.
Any ideas? I am still within 15 day warranty so I could theoretically return the phone (which I was contemplating doing anyhow since 10gb of functional storage is a bit too small for me), but would rather not have my hand forced, and eat into my cell data plan.
So far I have tried forgetting the network, wiping cache/dalvik with TWRP, removing the Google VPN, resetting all network settings, and a couple things I can't remember offhand now. Any suggestions will be appreciated.

AbanadonedFace said:
Any ideas? I am still within 15 day warranty so I could theoretically return the phone (which I was contemplating doing anyhow since 10gb of functional storage is a bit too small for me), but would rather not have my hand forced, and eat into my cell data plan.
So far I have tried forgetting the network, wiping cache/dalvik with TWRP, removing the Google VPN, resetting all network settings, and a couple things I can't remember offhand now. Any suggestions will be appreciated.
Click to expand...
Click to collapse
First, if you want to return your device because the 16gb model doesn't have enough space, go ahead.
If it is mostly because of this WiFi issue, I wouldn't return the device, it is almost certainly the case this is some configuration issue (possibly in concert with some Android bug) which can be resolved.
Is it possible when you came home the device connected to a neighbor's AP and thus you couldn't use data, but it wasn't immediately obvious, so you ended up forgetting your own network and reentering the config, but the key was off by a little, and from that point on, it was just assumed the wifi config was correct?
When you say Google VPN, are you using WiFi Assistant and Project Fi? Have you tried disabling auto-connect fir the WiFi Assistant?
Have you tried using the old Lollipop DHCP client (perhaps your IP address got used by another device and the new Android client doesn't handle that well?) Just grasping at straws.
Have you tried turning on Bluetooth while WiFi is on? Perhaps there is a bug with them working independently of each other in certain situations.

sfhub said:
Is it possible when you came home the device connected to a neighbor's AP and thus you couldn't use data, but it wasn't immediately obvious, so you ended up forgetting your own network and reentering the config, but the key was off by a little, and from that point on, it was just assumed the wifi config was correct?
Click to expand...
Click to collapse
I am 100% positive I am on my own home network and that I used the correct key. I'm not sure what you mean with regards to the rest of the 'config', I have always used the standard wifi configuration, just typed in my key and had it work.
sfhub said:
When you say Google VPN, are you using WiFi Assistant and Project Fi? Have you tried disabling auto-connect fir the WiFi Assistant?
Click to expand...
Click to collapse
I actually forget what it was called, it was under Settings>Wireless&Networks>More>VPN. There was one entry there with an icon. I forget the name of it, but the icon looked like a stock Google icon and I think it had google in the name. I am on Project Fi, not using any wifi assistant (at least not in Advanced Wi-Fi Settings), but when I tried to toggle that option on just now, something called "VpnDialogs" crashed, so I assume that VPN entry was that. But again, the assistant wasn't on.
sfhub said:
Have you tried using the old Lollipop DHCP client (perhaps your IP address got used by another device and the new Android client doesn't handle that well?) Just grasping at straws.
Click to expand...
Click to collapse
I did, when I first googled this was one of the things I found, sadly it did not help.
sfhub said:
Have you tried turning on Bluetooth while WiFi is on? Perhaps there is a bug with them working independently of each other in certain situations.
Click to expand...
Click to collapse
I don't use Bluetooth, and trying to toggle it off/on from the control center just gives me a repeated "unfortunately, Bluetooth Share has stopped" error message.
I have decided to get the 32GB 5X since I do want more storage, but since I would like to be able to root my phone again and use Xposed, I would still like to hear any other ideas you have for troubleshooting this problem in case it reoccurs.
I reflashed the latest update to see if that would fix it, no dice. When I send the 16GB model back I have to factory reset it anyway, so I suppose I'll know if that does it.
What puzzles me is why I can load text from instagram posts that have been posted while I've been having this problem, but not images. Makes me think that maybe my connection is being super throttled somehow rather than non-functional, but my PC's speeds are normal. Perhaps some internal part is damaged? I do have a case and it hasn't taken any serious tumbles, but it has had one or two small falls from maybe 2 feet high.

AbanadonedFace said:
What puzzles me is why I can load text from instagram posts that have been posted while I've been having this problem, but not images. Makes me think that maybe my connection is being super throttled somehow rather than non-functional, but my PC's speeds are normal. Perhaps some internal part is damaged? I do have a case and it hasn't taken any serious tumbles, but it has had one or two small falls from maybe 2 feet high.
Click to expand...
Click to collapse
It is easy to test if you have some network connection vs none.
In terminal or adb shell
ifconfig wlan0
ping www.google.com
1st command will tell you (among other things) if your wlan picked up an IP address.
2nd command will test whether you can send ping packets over your connection.
I'm sure there are millions of ways of doing the above, I just gave you one example.

Strangely, the solution seems to have come from factory resetting my router. I ruled this out initially because my other old phones were working fine on wifi, my phone is now getting WiFi again.
Now to figure out what the hell this "Power On" toast is about...

AbanadonedFace said:
Strangely, the solution seems to have come from factory resetting my router. I ruled this out initially because my other old phones were working fine on wifi, my phone is now getting WiFi again.
Now to figure out what the hell this "Power On" toast is about...
Click to expand...
Click to collapse
I've encountered something similar where the router runs out of NVRAM space because it has recorded too many DHCP clients, it won't hand out new IP addresses, but if you are existing or already have one, it is fine.

WiFi connected without internet

Dear All,
My note 10+ loosing internet randomly. While checking WiFi showing the message "WiFi connected without internet". after switching on and off it reconnects but lose connection after sometime. My other android phones are connected to the same WiFi but have no issue.
Please help me solve the issue.
Thank you
Arun

i have noticed its happening during whatsapp call duo calls

arunjyothisp said:
Dear All,
My note 10+ loosing internet randomly. While checking WiFi showing the message "WiFi connected without internet". after switching on and off it reconnects but lose connection after sometime. My other android phones are connected to the same WiFi but have no issue.
Please help me solve the issue.
Thank you
Arun
Click to expand...
Click to collapse
A similar thread was made on the subject - link here https://forum.xda-developers.com/galaxy-note-10+/help/android-10-5g-wifi-dropping-t4037661
For practical intents and purposes it's almost like when the issue happens the phone is not able to resolve a DNS query. I base this on 2 hypothesis - first being that the phone is still connected to the wifi access point and can still access LAN resources. The second being that the phone must either poll the internet (i.e ping a specific address) on a regular basis. If the poll was unsuccessful it flags the connection as "WiFi connected but no internet".
The things you can try are:
update the firmware on your phone (if not already)
factory data reset (read note 1 below)
reset network settings
try a different wireless router (read note 2 and 3 below)
disable private dns (read note 4 below)
If you use tasker create a routine to automate a temporary solution (read note 5)
Notes
The issue maybe a corrupted setting within the phone. I have had similar issues before (not with just this phone) and a factory data reset helped. One thing to take note of is that after the phone had completed it's factory data reset I did not attempt to restore a backup. This is important to keep in mind because any issues that were present (due to corrupted settings) would exist also in the pre-factory data reset backup you made.
With my previous router I had this issue but had since replaced it with a Wifi 6 capable router. After getting the new router I have not had any further issues what so ever. Also make sure your wireless router is up to date on it's firmware. It maybe possible that the wireless router you have is old enough (from when it was released, not from when you bought it) that a replacement might be the only way to resolve the issue.
To help rule out a wireless router issue try using a different one. You can borrow a friend's internet connection for a while, or a public cafe or what ever. Point is you are trying to see if the issue happens again when you are using a totally different wireless access point (by totally different I mean hardware/model and not just renaming the SSID).
I had the issue happen when using private DNS. For what ever reason the issue was with the DNS provider I had choosen. Turning the Private DNS setting off helped resolve the issue. After turning the setting off it may take a bit before the phone recognizes it was turned off, but you can hasten this process by toggling WiFi off and back on.
The Tasker option is one I did and it worked quite well. You may need to adjust the routine to suit your particular needs but it's basically what is at this link here. Best part of this option is that you can have it only activate when your connected to the problematic wifi access point and every X number of minutes (helps ensure that you use it only when needed). The routine (when setup correctly) should run every 10 minutes in where it attempts to access a website and assigns the results to a variable. The variable is then checked to see if it matches a specific result (in this case an error code), and if it does match it will toggle WiFi off and back on (after a brief pause/wait period between toggle off and toggle on) automatically. Granted it sounds like a lot of work, but it's really not that complex. Also I consider this is a temporary solution because you may find that on later firmware updates applied to the phone (or you may end up getting a new wireless router) the issue will have been resolved.

"WiFi connected without internet"
I was having the same issue until I uninstalled the app "WiFi Analyzer"

mike.aguailar said:
I was having the same issue until I uninstalled the app "WiFi Analyzer"
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Click to collapse
Interesting! Which one? The Play Store lists several apps by that name.

WiFi Analyzer
Gary02468 said:
Interesting! Which one? The Play Store lists several apps by that name.[/QUOTE
WiFi Analyzer by Zoltan Pallagi
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Click to collapse