Develop Bugs

[Q] poor 3G signal + call drops - Any solutions?

Hey,
I've recently got my DHD. Although i still have that call drops like i had it with my HTC Hero.
At home we have a bad 3G signal. That's why i set my DHD to GSM Auto (PRL).
It still uses 3G and there are no more than 2bars (signal strength). However i also see my DHD on 3G with no bar (signal strength).
Sometimes when i make a call (1 of 5-10Calls) the phone starts on 3g, after some time it hands over to 2g and the call is dropped.
Do you know is the call drop at 3g to 2g handover the providers fault or is it the handset?
My best solution would be to adjust the GSM Auto (PRL)-3G-Treshold , so it would require a better 3G signal and would'nt switch to 3g at home at all. Is this possible?
Another solution would be if i make a call, phone should switch to 2g automatically. Seems more realistic!?
If those ways are not possible i can just use the workaround to use WIFI at home and use "toggle 2g if wifi"
Thanks in advance!

Have you tried to fix it to GSM only without PRL? This is how I've gotten rid of my phonecall dropouts on 3G.
Sent from my Desire HD using XDA App

Ya ofc, but the coverage is only bad at home.
That means once i leave home i want to use 3G.
Switching everytime i leave home is no solution.
But thanks anyway!

Why data connection lost and why reboot fixed it?

Hi,
Using GNex, stock JB 4.11, Wind Mobile Canada, $40 plan, unlimited data & Canada wide.
Please excuse in advance for the novice questions. I am not yet familiar with Wind Mobile. The customer support is too long and submitting a question to their website required around 5 days to get an answer which is generally irrelevant in my short experience. Hope some expert users here can share some of your knowledge.
Last week, suddenly during a phone conversation, the phone became totally disconnected voice & data. The next morning, the situation didn't improve, so I rebooted the phone (power off / on). Then the phone could connect to voice, but no data (gray icon instead of blue). I stayed with no data for 3 days. During that time, I tried a few reboots, changing various network settings (APN, Network Operators, Data roaming, etc.). None of that worked, then I made another reboot and suddenly everything is back to normal (no roaming and data OK).
Q1. Signal strength variation: what is the cause that makes a signal vary? For the same location, sometimes signal changes from 3 bars to 1 within a few minutes.
Q2. What caused a network to black out temporarily? That's what I got last week during the entire night. The reception icon is a black outline triangle (no voice, no data). I purposely disabled roaming, I admit a network could have some issues, but I have hard time to admit that a disruption could last 12 hours. May be the issue is my phone? It was not rebooted since 7 days.
Q3. How often should I reboot the phone? By reboot, I mean power off/on. I hope this is the correct term. Is it possible that a frequent reboot help the phone to be more responsive? I tend to think so because all the network issues I got were magically fixed by reboot.
Q4. Why would a reboot fix a data connection issue? In my case, a few reboots on day 1 didn't fix. Many network settings changes didn't reconnect data. Then finally another reboot on day 3 fixed data connection.
Thanks in advance for any help.

Welcome to the Nexus and its crap radio. Try turning off 4G, once I did that I never lost signal again. With 4G on I get disconnected from the network randomly throughout the day

SirVilhelm said:
Welcome to the Nexus and its crap radio. Try turning off 4G, once I did that I never lost signal again. With 4G on I get disconnected from the network randomly throughout the day
Click to expand...
Click to collapse
How to turn off 4G? Wind Mobile operates on AWS network 1700/2100 MHz (UMTS band 4), and HSPA+ for data. I believe it is not 4G. On the phone Network Settings, there is only an option "Use only 2G Network" which is not a good option for me. If I enabled "Use only 2G Network" the phone shuts off data and changes to roaming mode.

just set ur nexus on airplane mode for a second..
then disable the airplane mode instantly..
u ll gain ur net working widout reboot... )

dinglic mass
ronakmachhi said:
just set ur nexus on airplane mode for a second..
then disable the airplane mode instantly..
u ll gain ur net working widout reboot... )
Click to expand...
Click to collapse
Oh wow, that's a cool tips.
I hope someone can answers my other questions, I like to understand the "how things works" side.

2LoT said:
Q1. Signal strength variation: what is the cause that makes a signal vary? For the same location, sometimes signal changes from 3 bars to 1 within a few minutes.
Any number of influences. A microwave, air ionization, temperature, humidity, output from the tower not consistant, and plus just the variations of the phone. Going by bars is a bad way to gauge anyways, it could have only dropped signal for a split second but it doesnt update the bars frequently so it would appear to be low signal longer than it could have actually been. Your phone works by line of sight, picture a tight wire from your phone to the tower, anything that crosses in that line reduces signal.
Q2. What caused a network to black out temporarily? That's what I got last week during the entire night. The reception icon is a black outline triangle (no voice, no data). I purposely disabled roaming, I admit a network could have some issues, but I have hard time to admit that a disruption could last 12 hours. May be the issue is my phone? It was not rebooted since 7 days.
That actually is hard to answer, you would need to contact your provider to see if they have a log of an outage at that time before going into whether it was the phone or not.
Q3. How often should I reboot the phone? By reboot, I mean power off/on. I hope this is the correct term. Is it possible that a frequent reboot help the phone to be more responsive? I tend to think so because all the network issues I got were magically fixed by reboot.
Never unless things act funny. A reboot is usually healthy for operating systems (i know many do not). I personally don't intentionally reboot mine, it usually happens because I'm screwing with clock speeds
Q4. Why would a reboot fix a data connection issue? In my case, a few reboots on day 1 didn't fix. Many network settings changes didn't reconnect data. Then finally another reboot on day 3 fixed data connection.
Like any software there are chance of a 'glitch' where the modem and the driver have issues communicating. Toggling airplane mode off and then back on re-initializes this and in most cases fixes the communication problem. Rebooting will have the same effect. I would only worry if you are needing to do this often.
Click to expand...
Click to collapse
Hope this helps a little.
I would also contact your provider. They may have an issue with the tower you are connecting to.

Perfectly understood, appreciated very much your detailed answers. Can you please clarify below?
Darunion said:
Any number of influences. A microwave, air ionization, temperature, humidity, output from the tower not consistant, and plus just the variations of the phone. Going by bars is a bad way to gauge anyways, it could have only dropped signal for a split second but it doesnt update the bars frequently so it would appear to be low signal longer than it could have actually been. Your phone works by line of sight, picture a tight wire from your phone to the tower, anything that crosses in that line reduces signal.
Click to expand...
Click to collapse
Makes sense. Indeed, when I said "For the same location, sometimes signal changes from 3 bars to 1 within a few minutes". Actually, I mean a room and I was walking/moving so may be the orientation of the phone explained why the reception was inconstant.
Regarding your answer above output from the tower not consistant. Is it possible that the tower reduces its signal strength when the number of users increases? Similar to users sharing a finite band width?

Yes, even orientation of the phone can have an affect, depends how the antenna is set up inside the phone, i havent seen it so i have no answer for that.
ya, as you move around you could have been what blocked the direct sight of the tower, signal passes through nonmetal objects but each time it does, it loses strength depending what it passes through

@OP I also have the same problem, I am also with Wind and had to do force reboot to make it reboot.
Sent from my Galaxy Nexus using xda app-developers app

Flash the UGLC1 radio to your nexus. I'm with Wind as well and that radio gets me good service!

the problem of the reach of 3G,WCDMA,GSM ok

For me, a similar problem
Setting the network mode to auto or just wdcma makes the phone unusable.
Although the extent of the phone grabs. Nay, sometimes even 5 bars but the state does not tra large than 5 (sometimes 10) minutes and reach lost. Often with good coverage, I can not make calls and the internet does not work. Redials the phone ends in the subscriber information out of reach (the phone shows that he has range)
Switching the phone on GSM ONLY mode causes that everything starts to work as it should (only the net so slow)
The problem started a week ago
The problem occurs in various parts of the city, regardless of whether I use the transmitter Play network or roaming.
Factory reset did not help. I suspect the SIM card but the more I'm bending your point defect (eg antenna) since the last few months everything worked
EDIT:
1h watched by telephone yesterday, and what I noticed.
The problem is when a weak signal mode UMTS.
The signal strength of -90,-95dBm causes the phone to have problems. If the signal is below-100dBm the phone is able to maintain a dial-up connection to the Internet are no longer problems. Often there are also decreases above 100dBm signal which usually end up losing the connection of both GSM as well as internet and phone needs a few dozen seconds to reconnect.
If you set the mode to GSM only signal strength is-55dBm and the problems do not occur.

piotrpg said:
For me, a similar problem
Setting the network mode to auto or just wdcma makes the phone unusable.
Although the extent of the phone grabs. Nay, sometimes even 5 bars but the state does not tra large than 5 (sometimes 10) minutes and reach lost. Often with good coverage, I can not make calls and the internet does not work. Redials the phone ends in the subscriber information out of reach (the phone shows that he has range)
Switching the phone on GSM ONLY mode causes that everything starts to work as it should (only the net so slow)
The problem started a week ago
The problem occurs in various parts of the city, regardless of whether I use the transmitter Play network or roaming.
Factory reset did not help. I suspect the SIM card but the more I'm bending your point defect (eg antenna) since the last few months everything worked
EDIT:
1h watched by telephone yesterday, and what I noticed.
The problem is when a weak signal mode UMTS.
The signal strength of -90,-95dBm causes the phone to have problems. If the signal is below-100dBm the phone is able to maintain a dial-up connection to the Internet are no longer problems. Often there are also decreases above 100dBm signal which usually end up losing the connection of both GSM as well as internet and phone needs a few dozen seconds to reconnect.
If you set the mode to GSM only signal strength is-55dBm and the problems do not occur.
Click to expand...
Click to collapse
it's your network providers problem not our's. you can obviously not get 3G all around your city

Network Mode

I have a LG G4 H815 Eu on EE, under "Network Mode" it is generally set to 2G/3G/4G Auto, on a call it goes to 3G often 2G, when it drops to 2G I cannot then access the internet at the same time.
I've taken to leaving the setting on 3G only, which works fine and allows both calls and data at the same time, but obviously missing out on 4G.
My only options are 2G/3G/4G Auto..... 2G/3G....... and 3G only
What I really want are 3G/4G, is there any way to get this, I'm without root as of now.
Thanks

Gosh. Please educate yourself about cell networks. Your phone has to drop to 3G when making a call (yet) . There is hardly any 4G network capable of transmitting a call. Yes, the invented, released, published and implemented a cellular standard WITHOUT the possibility to make phone calls. You can eavesdrop on 4G so perfectly it makes the NSA guys jerk off, you can not make a phone call. Isn't it great how the needs of the customers are met? [emoji35]
When you only have 2G then your connection is simply so bad that you just won't have enough bandwidth to make a call and surf at the same time. (How the hell do you do that?)
Your phone should however go back to 4G when the call has ended and 4G is available.
Sent from outer space using telepathy

I don't think you read my post correctly.
I can have default 2G/3G/4G Auto but when on a call and it sometimes drops to 2G, data dies so I have to end call to use data.
I've now set it to 3G only and for the last few days it works fine on a call and data at the same time if needed, but obviously no 4G
Only other option is 2G/3G which is useless as 2G is where the problem lies.
I want a 3G/4G option, is this possible?

Are you in weak coverage areas? Your phone should only be dropping if you have weak 3G.

geoff5093 said:
Are you in weak coverage areas? Your phone should only be dropping if you have weak 3G.
Click to expand...
Click to collapse
That's the thing, if I set it to Auto it frequently drops to 2G.
Since I've left it solely on 3G the signal hasn't dropped once even using it in the same places when on Auto it dropped to 2G.
I would like a 3G/4G option, any ideas how to get one? Thanks

john306 said:
That's the thing, if I set it to Auto it frequently drops to 2G.
Since I've left it solely on 3G the signal hasn't dropped once even using it in the same places when on Auto it dropped to 2G.
I would like a 3G/4G option, any ideas how to get one? Thanks
Click to expand...
Click to collapse
So I'll ask again, are you in a weak coverage area?

No need to ask again, I've just explained when i lock it to 3G it's perfect, why it drops to 2G when on Auto is anyone's guess

Weak to NONE 4G and 3G network signals.

I just bought the Nexus 5X, nice device overall but I encounter some reception issues (in my flat) with the recommended, default, 4G and the 3G connectivity ( very poor signal to none, the network bar is empty). They work perfectly outside though. The 2G option has full reception. What is there to do?
I'm on Orange, Romania, and just got a new nano-sim for this device.
Things I have tried:
-Turn airplane mode on, then turning it back off
-Reboot phone. When it is off removed the SIM card and then re inserted it and turn on.
-Check Settings/more/cellular network/preferred network type and try to change to each of the network settings,
-Reset network settings from Backup&Reset
*Other phones got slightly poor internet reception too but their overall signal is good, and their network bars are filled whereas I got no bar
*The previous Moto G did just fine and always had H+ in my home (to mention that I changed my micro-sim, which was the sim the Moto G was on to a new nano-sim to suit the Nexus )
*In some parts of the house it alternates from a half-full network bar to an empty network bar (usually it is just a 5-10 sec. filled and then back to empty)
*When I manage to have some lines in the network bar, the mobile data stays at E.

Was there a solution to this? I feel like I'm having a similar issue after two days use. Have asked provider for info too.

paulmist said:
Was there a solution to this? I feel like I'm having a similar issue after two days use. Have asked provider for info too.
Click to expand...
Click to collapse
No, I still have it. Nobody seems to have a soluționa.