If anyone can shed some light on this issue or a fix please let me know. When I am using my phone I get "No Service" when in standby mode or when waking up from sleep (but most of the time still shows full bars). I have tried:
Changing builds
Changing kernels
Changing radios
even swapped out the SIM
Anyone have any ideas? Settings changes or otherwise?
jd1234 said:
If anyone can shed some light on this issue or a fix please let me know. When I am using my phone I get "No Service" when in standby mode or when waking up from sleep (but most of the time still shows full bars). I have tried:
Changing builds
Changing kernels
Changing radios
even swapped out the SIM
Anyone have any ideas? Settings changes or otherwise?
Click to expand...
Click to collapse
Maybe this is why sometimes when i look at my battery usage in standby, apparently like 80% of my battery is used over night and lets say 72% of that time was spent searching for a signal.
Here's some additional information on what I've found:
- If I turn on Edge (use 2g neworks) I don't see the behavior.
- If i boot into WM I noticed the phone will jump back and forth between 3G Tmobile and Tmobile, but it still has full service for each.
I wonder if it has something to do with the attempts to switch between edge and 3g in this particular area and android not being able to stay connected while doing this.
I want to reiterate that I have literally tried everything I know of to fix this:
- Hard reset
- Changed sim card, ROM, builds (some PPP some RMNET), radios
I'm out of ideas.
Something to enhance this theory..
overnight
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same time with screen on (same place where phone apparently was searching for signal)
No Service in standby
Hi I am also facing the same issue, i am using the build Mdeejay eVo Sense v. 2.3 rEVOlution, when the phone goes to standby after some time when i try to unlock the phone i see "No Service" on the lock scree, as soon as i unlock it gets the t-mobile signal. Did you guys find any solution for this problem? i am using US t-mobile HD2( i haven't tried upgrading radio or rom).
Thanks
I haven't found a solution, but try putting your phone into 2g only mode. For me this tends to alleviate the problem. Also, some areas this doesn't happen for me, so in those areas I leave the 3g on.
Keep posting if you guys find anything else..
No service in voyo a18
Hello everyone, I recently bought this Chinese tablet voyo a18,its having strange issue for no service when ever I turn the screen off but it receives the signals again on awake, any thoughts Please?
Related
What really pisses me of is that, when people call me the phone actually rings (from their side), if they leave me a voicemail then I will get it when I switch the phone On. But if they don't then I wont even get a Missed Call alert (it does not show me the missed calls when I switch it on)! So, if I don't use the phone for a certain period of time (sometimes for over 3hrs) I will be missing phone calls (if I do get calls at that time). So its really annoying not knowing whether the phone is On or Off!!
What do you guys recommend? Should I perhaps downgrade my Radio?
Please HELP guys...
____________________________________________
HTC TyTN WM6 Black Dymond v3.5
|| SPL: v2.10.Olipro (HardSPL v7)|| RADIO: v1.41
Try this (start from Add Server Source):
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Dude, what is this?
He is showing you how to use the "fake server trick", since screen of death issue while on standby is usually caused by activesync kicking in. Search for "fake server trick" - I recommend the google forum search (in my sig).
I have sleep of death and this trick, doesnt work..so thats ****ed up..
Upgrading to Black Majik got rid of the sleep of death for me.
PM
packetmangler said:
Upgrading to Black Majik got rid of the sleep of death for me.
PM
Click to expand...
Click to collapse
Yeah thats true, but the rom is so ugly..hmm..I will look the other way when I put my Hermes on..
I had the Standby of Death SOD this is when the phone fails to come out of standby with a power button press. This issue only affects some people on some networks. I'm not sure if its a network problem or a software problem but as only a minority of people have it, I suspect its mainly a network problem there is a software solution.
The solution is to change the phone settings band option from auto 3G/2G to either 3G Only (WCDMA + UTMS 2100 in Europe) or 2G Only (GSM + AUTO) depending on your requirements.
Also read this thread http://forum.xda-developers.com/showthread.php?t=540943&highlight=standby&page=2 where the resolution was to change SIM.
Obviously this only solves the problem when the crash is because of the sim and/or settings which impact the sim. To rule out a software cause its best to start with a hard reset.
Hi. I commented on a previous post about how great my battery is on 4.1.2 with wifi on, much better than 4.1.1, was draining at about 0.7-1% per hour overnight with 5 hours screen on time.
Anyway, last night I thought I would try something else and when I went to bed I turned off wifi and left on 3g. What a mistake! Battery drained from 71% to 24% in 7 hours. Thats about 6% per hour!
Nothing else has changed, no apps were left running. My screenshot looks like it couldnt go back to sleep on 3g? I dont have wifi at work and need my phone during the day, recommendations? Flash back to 4.1.1? I've seen others complaining about same issue on 3g but as mentioned above, couldnt find the thread. On the screenshot, where wifi turns off the third time was when I went to sleep- the battery hemoragies at this point.
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I just checked my data usage last night and nothing was used so it wasn't a app syncing or anything, just doesn't like been on 3G!
If I turn wifi off and turn mobile data also off, it hardly drains at all. As soon as mobile data is on, it's constantly awake. I have quite a good signal also. Most strange.
I will just keep wifi off and mobile data off at work, I may get more work done anyway!
Hi check this thread out some usefull ideas and tips regarding greatly increasing battery life for heavy users .. all tips are tested ..good luck
Anyhow here is the link
http://forum.xda-developers.com/showthread.php?t=2058804
Sent from my GT-I9300 using Tapatalk.Siyah Kernel Rules The Galaxy
Ok, I have found my problem, sort of. Just realised, when wifi is not on, even though I have a h in top screen, I'm getting no data. Tried running some speed tests etc and didn't work at all. The orange download arrow is never on and the green upload arrow is nearly always on. I'm wondering if I have had a bad flash? Did it via kies. I'm on o2uk if that helps. Tried switching to 2g and I get a icon, with orange and green arrows but still no data! Just spoke to o2 and they have resent me all my 3g internet settings etc but still not working.
Can anyone help please?
Thanks for all the help!
I have reflashed via Odin and that didn't resolve it. I have then done a complete factory reset and that hasn't resolved it either. What should I do now? Is it a rma job?
Hey guys,
I just bought a Galaxy Note 2 second hand, and it is having some problems. Right now I'm not sure if it's something I'm doing wrong, something Verizon is doing wrong, or something wrong with the device.
I am 100% stock, with no modifications. I can receive texts, but cannot send them (I get a message saying it will wait for the network to become available to send). I also cannot make calls (I get a similar message).
Here's the kicker though: I have signal. I have several bars of 4G, and am sending / receiving data through the browser, but the SMS / Voice call features of the phone do nothing.
Anyone have any advice? I have tried the following:
Wipe Data / Factory Reset
Reboot
Wipe Dalvik
Shut down, remove SIM card, put SIM card back, reboot
Nothing seems to do anything helpful!
UPDATE: Just browsing around the settings, I found the following in my network settings:
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Correct me if I'm wrong, but isn't that missing some things?
Did you just activate your service, or start new 4G service? It can take anywhere from a few hours to a full day for all phone functions to work. When I got a new SIM before, data worked almost immediately, but some of the SMS/call related things took a couple hours before they worked properly.
imnuts said:
Did you just activate your service, or start new 4G service? It can take anywhere from a few hours to a full day for all phone functions to work. When I got a new SIM before, data worked almost immediately, but some of the SMS/call related things took a couple hours before they worked properly.
Click to expand...
Click to collapse
No, I had a Galaxy S3 and simply shut that phone down, took out the SIM, and transferred it to the new phone. Nothing else changed.
I bought a pre-owned T-mobile S5 to use on AT&T. I've sim-unlocked it, rooted it, installed CM12 on it. However I keep losing service. This is NOT an AT&T issue, as the tablet sitting next to it is on AT&T and works flawlessly. Do I need to flash a new modem? Or do something else to make this work closer to flawlessly? I already searched the forums and couldn't find anyone with my problem.
Thanks in advance.
Possibly you have to edit the APN settings. I did a small thread on what you need to do to use a Tmobile s5 on AT&T:
http://forum.xda-developers.com/tmobile-galaxy-s5/help/tips-using-g900t-att-t2975336
Thanks, I assume when I inserted the sim card, the APN info was loaded, as I've not touched that part, and it's already on my phone. That doesn't seem to be my issue. Any other suggestions?
I've been having the same issue for months. I went back to a stock rom and recently came back to AOSP, but I forgot I was having constant signal drop.
myfriday said:
I've been having the same issue for months. I went back to a stock rom and recently came back to AOSP, but I forgot I was having constant signal drop.
Click to expand...
Click to collapse
I am having the same issue. Can you tell me what modem/rom are working the best for you? Thanks!
Solution!
My particular solution does require xposed and gravity box module.
I noticed that the cell signal issues only happen when I'm connected to WiFi.
I created a tasker profile that toggles mobile data off when wifi is on and changes the data mode to 3G only. I used the toggle data 5.0 plugin (see for details) in tasker to toggle to change to 3G.
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I then used the gravity box "change network type" action (see for details) to change network back to LTE and I used the toggle data 5.0 plugin to turn data back on when WiFi is disconnected. I guess this would be the end task?
I took a screenshot a couple hours ago of the result. Not one signal drop in 3 or so hours. I'm no expert in tasker, and these are the exact steps I followed.
I was having a similar issue with CM12.1 on AT&T using the G900T I actually posted on their forums about it: http://forum.cyanogenmod.org/topic/106617-lte-issues-cm12-tmobile/ however it looks like they're has been any resolution..I had no issues running stock, and when I installed BlissPop (CM Based) I had no issues at all.
Thanks for the suggestions. I will try them out.
radi0chik said:
Thanks, I assume when I inserted the sim card, the APN info was loaded, as I've not touched that part, and it's already on my phone. That doesn't seem to be my issue. Any other suggestions?
Click to expand...
Click to collapse
No you have to edit the Apn often times.
Sent from my SAMSUNG-SM-N900A using Tapatalk
My phone has a very strange issue which I'm unable to fix. It happens totally randomly. Sometimes it occurs multiple times a day, then it won't happen for weeks.
It goes like this: Sometimes, even though I'm connected to my WiFi network, apps won't connect to the internet. However, the apps won't give me an error message telling me that I'm diconnected. As the WiFi symbol is active, the phone probably thinks it's online while it's actually not. All apps are affected.
At the same time, the battery drains rapidly (about 10% per hour in standby) and the phone gets slightly warmer. Maybe it is trying to connect all its services to the internet, fails constantly and therefore gets warmer?
This battery drain has also occured in flight mode, so it is not necessarily a WiFi problem. It has happened in various WiFi networks and my other devices don't get disconnected, so the reason must be within the phone.
I've done multiple factory resets but it didn't help. I'm tired of doing factory resets. The only way to temporarily fix it is turning the WiFi on and off again or rebooting the phone. I'm on Oreo btw.
I should add that this only begins when the phone is in standby. When the screen is on, i.e. I'm actively using the phone, I do of course notice the issue but it starts before waking up the phone from standby. That makes me believe it has something to do with standby / Android doze.
Someone on Reddit suggested that it might be due to Android Doze. I followed the advice there, went to Settings > General > Battery > Power saving exclusions, switched on the WiFi and restarted the phone. That was two days ago and there's still no improvement.
Apart from that, battery life is bad overall, even when the WiFi issue doesn't occur. Just see this screenshot from today below. It's almost as if the phone has a bad day sometimes and drains the battery for no apparent reason. Then, on other days, it's better but still nowhere where it could be according to other V30 owners' screenshots.
What can I do?
It is really really annoying!
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Not sure if this would help or not but try (from the playstore) Greenify. It works best if device is rooted but also works (give permissions through adb) without root.
Would it fix the problem? Oh no, doubt that. It *might* point to what's going on though?