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[Q] siginal issues

first , this is just happen these 3 days. before it never happened,
my phone is go to deep sleep , which is good, but after i check the record , during the deep sleep , the siginal drop from 4 or 5 to 0 !!!!!!!!!.
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please take a look the mobile network signals.!!!!!!!!
i never change the radio, so i think it is not the radio problem. anyone analysis is it becasue roms? or most possible due to the kernel ?? or may be apps?
i use nexus 5.04
thanks .

I had the same issue after changing carrier and at home. I solved it by using a RAT unlocked rogers modem and picking up a specific band, in my case wcdma 850.
I happened mostly after waking up but my guess is it was just showing it when waking up, my gf always complained she had to call 3 times before it will get to me and not to voice mail.

So you can't get a call while the phone is sleeping?
Sent from my SGH-I727 using xda premium

As I said i fixed it by setting up a specific band and letting the phone decide which band.
I could get calls while it was sleeping but the reception was spiking so sometimes it would just go to voice mail.

{Help} Battery troubles still

I have a new phone 2 weeks old and from day 1 I've had horrible battery even with minimal use. usually I can get through a work day and that's it. I work in construction so I have no wifi. I turn off Wifi,NFC,Data,GPS,Bluetooth, and set screen brightness to lowest setting unless i'm using them. But keep in mind I'm rarely using my phone except for breaks which i put it on the charger. Here are some pictures that may help decipher the problem. At first glance I have a "wake lock". I'm stuck at 384MHz. I've had a wakelock on all my roms for some reason. Sometimes its the media app sometimes its android system...Currently I'm on Barebones CM10 but I've had most of this forums roms\kernels on my phone after a full wipe and even after some odin stock. I'm kinda lost as my sister who got the phone a day after me has great battery life and my friends say they can get up to 2 days if they aren't using it. i don't believe the 2 days comment, but still his battery life isn't as bad. I'm not crazy right? Also, I'm not sure why all the time running aren't the same
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My phone has bug in all rom

Hello, my galaxy sl has bug in all rom.
When I use the internet with HSDPA internet crashes after a while, the network is blocked for a long time or if you restart preventing even the ability to receive calls and messages.
I am forced to restart the smartphone but I suffer a second bug, the battery goes to 0-1-2% and the smartphone is likely to go off after some minutes the battery salt alone.
I went from 10.1 cm to 10.2 then I started again with the stock and put the TheFrankestain ^ MOD
cm10.1
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cm10.2
Frankeistan mod
Please help me :crying:

Few months back I had battery curve somewhat like this.
I guess an old battery. Battery calibration will smoothen the curve.

I faced the same problem a weeks back.. the only way to solve such problem is by doing a proper battery caliberation, just google it to find more info on it..,

a new battery will solve your problem I had this problem last month but when I bought new battery I forgot about this bug

Every 15 minutes my mobile and phone network will shut down for 10 seconds

It started with my phone on 4.4 and I couldn't update OTA to 4.4.2, it would fail every time, even though I'm completely stock.
I lived with that for a long time, but then my GPS would act up and not work correctly or be slow, and my auto-rotate would not work.
A reboot would fix this, but it was very annoying.
Then I RMA'ed it and they changed my motherboard (all the stuff inside) which gave me a new IMEI numer.
It worked, the next OTA got installed fine, and I'm on 4.4.4 now.
As I'm writing this now, I've just gotten the 5.0.1 OTA, which might solve this problem, I don't know.
Anyway, the problem now is, that every 10-15 minutes my mobile and phone network will shut down for about 10 seconds, with no bars at all.
I've checked the battery stats (see picture), and it looks like it only does it when the signal is on the green, but not when it's on the yellowish color.
What does those colors mean?
Does anyone have any knowledge about this, is it software, hardware, should I RMA it again?
http://i.imgur.com/7911r8V.png
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That sucks, rma it

I'd try flashing stock again with fastboot. If it's the same , it's either a hardware issue or carrier issue.

Having a DATA sim causes battery to drain very fast (Cell Standby)

I made a previous thread where I tried to force LTE to solve my Cell Standby issue. In the end I couldn't figure out a way to do this on a non-rooted phone.
Until recently I found an app Network Mode that allowed me to select "LTE only" which I thought would solve the problem of my phone wasting his battery to finding a GSM connection (which I guess the problem is).
Cell Standby is currently still on the top with usage, but it dropped from 70-85% to 50%.
But I want it to drop more, is there anything else I can do to test to find what causes him to use this much battery, and possibly disable it?
PS. I don't have this problem when I put my Belgian SIM in my phone which isn't limited to internet data.
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Bump

I tried to contact Google, they sent me to Samsung. Samsung said it's a stock android problem so sent me back, placed the bug on their bug system but no response yet. Anything I can try myself while waiting?

Last bump, I promise. I'm stuck between two companies and my phone can't survive a day.