2G(GSM) signal loss in rooted 4.0.4 - Xperia Arc Q&A, Help & Troubleshooting

Hi,
My signal reception is not always great. Sometimes i also have the issue of having no reception untill i unlock my screen, but thats not always the case, sometimes i have to reboot the phone to get my signal back but this not always work. The signal loss occurs even when i'm asleep and the phone is on my nightstand.(i've seen this in the battery history). Battery drainage is not greater when there's no signal. Also when i make calls i and sometimes the other person hear loud noises(peeping). Also my signal bar show full bars and when i try to make a call this doesn't work because when after a while trying to make the call, the bars drop to maybe 1 or even no bars.
The problem with high pitched noises while making calls i've had from the beginning, in GB. Losing signal reception i've had since i 've rooted ICS 4.0.3(one-click doomlord). under 4.0.3 i've flashed the .72 baseband but that didn't helped. Now recently i've did a factory reset + flashed a generic 4.0.4 and rooted it, because 4.0.4 isn't yet released in Belgium. under root I removed bloatware, but didn't remove critical apk's.
In the menu with available network providers my operator/provider has only 2G, i've choosen the automatic connection instead of manual, only in big cities 3G appears in the menu, dunno if this is relevant.
My Sim is maybe 3 years old.
Any suggestions?
Thanks

dahakske said:
Hi,
My signal reception is not always great. Sometimes i also have the issue of having no reception untill i unlock my screen, but thats not always the case, sometimes i have to reboot the phone to get my signal back but this not always work. The signal loss occurs even when i'm asleep and the phone is on my nightstand.(i've seen this in the battery history). Battery drainage is not greater when there's no signal. Also when i make calls i and sometimes the other person hear loud noises(peeping). Also my signal bar show full bars and when i try to make a call this doesn't work because when after a while trying to make the call, the bars drop to maybe 1 or even no bars.
The problem with high pitched noises while making calls i've had from the beginning, in GB. Losing signal reception i've had since i 've rooted ICS 4.0.3(one-click doomlord). under 4.0.3 i've flashed the .72 baseband but that didn't helped. Now recently i've did a factory reset + flashed a generic 4.0.4 and rooted it, because 4.0.4 isn't yet released in Belgium. under root I removed bloatware, but didn't remove critical apk's.
In the menu with available network providers my operator/provider has only 2G, i've choosen the automatic connection instead of manual, only in big cities 3G appears in the menu, dunno if this is relevant.
My Sim is maybe 3 years old.
Any suggestions?
Thanks
Click to expand...
Click to collapse
I do recommend buying a very cheap signal booster.
It's like a bumper sticker and placed where the antenna.
The signal problems rarely belong to the cell, in most cases within a few base stations belonging to the company in relation to users.
I hope I have helped.
best regards

Related

[Q] Sporadic GSM signal loss on Froyo [RESOLVED - SIM HW defect]

My phone loses signal often without any obvious reason - i.e. I've placed it on a table where the coverage is 100% and just leave it like this, but suddenly there's no signal at all. Usually in a while the connectivity is restored, but sometimes it just gets stuck without signal (installed "No signal alert" to monitor it).
I'm in Bulgaria, so there should be no problems with the UK release. I tried with 3.4.3-11 and 3.4.2-155, loosing signal on both. I just downgraded to 3.4.2-145 and the signal is stable for now...
For the record, I tested it with "clean" install - wiped, then flashed the SBF - no root, no clockwork recovery, no custom ROM, no apps...and the phone keeps loosing signal pretty often.
Anyone else noticed such behavior?
Hmm, I'm loosing signal with 3.4.2-145 as well...I'll try with different operator to see if there's difference. The other option is to downgrade to Eclair - which I guess is not an option anymore after flashing Froyo...
I'm currently using the 3.42.155 and haven't really experienced signal losses. Could it be that you must get your hardware checked? I hope you solve it soon! Goodluck!
3g and Voice calls are related, when you receive a voice call 3g is dropped, and when you hang up the phone its resumed, but if you have the wrong baseband it could happen the opposite, signal reception drops when 3g is transmiting/receiving.
This may be your case,
To the point Bad 3g speed / bad signal / drops in signal / drops in 3g, all is repaired just changing the baseband.
try this
http://forum.xda-developers.com/showthread.php?t=944258
Sorry I left the thread without update - it turned out the SIM got defective, it just coincided with the Froyo upgrade and mislead this is the cause. After I downgraded to 2.1 it kept loosing coverage, than I moved the SIM to an old Sony Ericsson and I got "SIM Inactive" error...I don't get it why Android/Motorola can't distinguish such hardware defects...
not sure if it's your SIM, but when i was on 3.4.2-145, i also have this same problem. Had a friend with a Nokia but same operator, had 100% coverage and my phone with EMERGENCY CALL only. But it comes back in a while or so. Not sure if it's the ROM or not, but now with LiquidArc (with 3.4.3-11), signal seems to be very good, or at least on par with the dumb-phones

[Q] Data connection problems

Hi,
I have some data connection problems since the first day i bought my DHD.
The phone reception signal bar are always changing even when i am not moving at all.
It can generally move from H to 3G a few times, then go to E and then G, in a few seconds.
it always moves, my internet connection is very slow.
It's as if the radio was always trying to renegociate the method of communication (GPRS, 3G, etc) with the operator's antenna
When i am in a phone call, i got disconnected sometimes or the sound stop during a few seconds (the time the radio switch from 3G/H to E/G i guess)
When i disable WCDMA from the settings i get a quite stable sound during my phones calls (maybe because the phone no more tries to negociate). But for Internet... it's just slow.
I tried a few ROMs, and their respectives radio rom (the one with the IRL branded in the ROM) i sometimes thought it was better but always it's still too unuseable.
I tried my SIM card in an iphone 3GS and i am usually in Edge (sometimes 3G) but when its 3G i can surf quickly during hours (if i don't move). This is not the case with the DHD.
btw i am on the french carrier SFR
If any of u had any clues i would really appreciate your help.
Thanks you
what rom are you using and what radio and ril................... now what radio are you on now
OP already stated he tried numerous ROMS and their cooresponding radios. Sounds like the signal is that degraded that any radio/ril combination will not help.
Thanks for your replies.
As said i tried many ones with their respective recommanded radio.
I am actually trying Radio_12.62.60.27_26.13.04.19_M with Android Revolution HD 4G_6.1.1 with no sense script.
Are there tests i could do to identify if its a hardware problem (like standing in front of an antenna and running some special tool maybe)
Btw, i also tried :
-RCMix3D_Runny_v1.3 but does work with internet pass through (wich is really important since i can't use internet from my phone carrier...)
-niarkMIUI-3.9.1
-LeeDrOiD_HD_V4.0.0-SE-3.0-BETA with Radio_12.54.60.25_26.09.04.11_M2
-cm_ace_full-203 with my stock radio ROM
-virtuous_unity-v2.37.0 with i don't remember wich one...
P.S : i would be Glad to test any ROM / Radio combinaison you would suggest me.
Thanks by advance for your attention
if you tried all those roms and diffident radios seems like its more like a hardware or provider issue does it happen off different towers or maybe you can go to one of the stores and try the phone at the store with yours at the same time?
Thank for the advice indeed i need to try this.
Do you know what i need to revert back for the tech not to tell the waranty is over since i have flashed my phone ?
Does i need to reflash the recovery etc? is there some tutorial in this subject because if i go to the store with my custom rom i guess i won't get too much help :/
Don't even take out your phone, your going to say your just looking, don't show anyone your phone, they won't even know what to look for, just test your phone to the one at the store, make sure apn's match. But if you return your phone you'll need to ruu back to stock. You can search easy s-on
Sent from my Inspire 4G using XDA App
What happens if you manually select 3G only, or 2G only from the settings menu? Does it just lose signal, or stays strong?
Hi
If i select 3G only
I first get no reception (as if when switching from 2G to 3G the radio had to restart)
Then the 3G signal appear strong, decrease slowly in less than 30 seconds, and after all, it seems quite stable.
The bandwidth is good i am downloading fastly
(i am commenting in real time)
Still no deconnection.
I will try it during the whole day and tell how it is behaving.
umm during a few seconds, there were no indicator (no 3G or H), just 3 bars.
It then restarted in H with 1 bar (i am not moving at all)
What will happen if i have no 3G in my area ? I won't be able to receve a phone call ?
Thanks
elfrancesco said:
Hi
If i select 3G only
I first get no reception (as if when switching from 2G to 3G the radio had to restart)
Then the 3G signal appear strong, decrease slowly in less than 30 seconds, and after all, it seems quite stable.
The bandwidth is good i am downloading fastly
(i am commenting in real time)
Still no deconnection.
I will try it during the whole day and tell how it is behaving.
umm during a few seconds, there were no indicator (no 3G or H), just 3 bars.
It then restarted in H with 1 bar (i am not moving at all)
What will happen if i have no 3G in my area ? I won't be able to receve a phone call ?
Thanks
Click to expand...
Click to collapse
If you force it to 3G only, and you move out of 3G area, then you should either get a no signal indicator, or if you have roaming enabled, you would get the roaming indicator. I'm curious now because as you said you aren't moving, and it's still changing. That shouldn't happen. Hmmm

SGH-T999 loses signal after ending a call

Hi all,
I recently discovered that my phone is not maintaining the network connection once I end a call. Whenever I end a call I can visibly watch the bars deplete. I set a numeric indicator for signal strength and I watch it go from -85 while on a call to -113. The bars at this point are completely gone and any calls made to my device go straight to voicemail.
One quirk is that I am able to reconnect, and maintain the connection with the network simply by triggering and subsequently disabling airplane mode. This of course only works until the next call has been completed, wherein the signal strength dies again.
I should mention I am running cm9 which was flashed using cmw. I've heard about the same thing happening with stock nexus devices, but was curious if anyone else has had similar experiences?
Thanks for any and all insights,
Well now this is a little strange, but I've found a way to stop the signal from being lost. All I have to do is restrict my device to 2g networks. This would normally be unacceptable, but I don't actually have a data plan as I'm a wifi only guy.
My imei was wiped when I flashed cwm using Odin, so I wonder if this may have something to do with the issue. Maybe others with borked imeis experience something similar...
I'd still like to see what others may think on the matter despite the work around.
Sent from my SGH-T999 using xda premium

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!

[Q] Wcdma connection problem!

Hi. I've an HTC Desire, with Rooted Gingerbread (2.3.3) and the 32.56.00.32U_5.17.05.23 Radio. i'm in italy, under Wind, but i've also a Tim Simcard and both have the same problem: Under WCDMA/GSM or WCDMA only, sometimes the connection drop, maybe during a call, and then i'm not able to receive calls or sms'. most of the time the data connection works fine, except that sometimes it remains stuck and says it's uploading something (the icon on the notification bar) but after less than a minute it goes again. Please help me, i've tried different roms with different radios, when i first bought the phone (used from uk) i remember it worked fine, i started noticing the problem after i installed a gingerbread rom with sense 3. i can't use the GSM only mode, cause i've a data plan and i need browsing, so GSM is too slow
thanks
up
It may just happen in areas where you have poor signal.
eddiehk6 said:
It may just happen in areas where you have poor signal.
Click to expand...
Click to collapse
thanks for the answer. i noticed that this situation is stronger in my bedroom, where i keep my pc. not in my house, just in my bedroom. the signal is not poor, i tried to download many app from the play store, and sometimes the download is fast, sometimes the download stops. then i tried the same thing out of my house, but connected with the same cell, and even if the signal was lower, and the download speed too, the download went good, and the signal never dropped, the connection type was WCDMA/GSM and the phone was in HSDPA. i don't know what it can be, i'm starting to think that there's something in my room with and electromagnetic field.
superwolf95 said:
thanks for the answer. i noticed that this situation is stronger in my bedroom, where i keep my pc. not in my house, just in my bedroom. the signal is not poor, i tried to download many app from the play store, and sometimes the download is fast, sometimes the download stops. then i tried the same thing out of my house, but connected with the same cell, and even if the signal was lower, and the download speed too, the download went good, and the signal never dropped, the connection type was WCDMA/GSM and the phone was in HSDPA. i don't know what it can be, i'm starting to think that there's something in my room with and electromagnetic field.
Click to expand...
Click to collapse
Maybe you have well-built house
Anyway, it's common problem. I have 3 Desires and they all loose connection in some areas for a while.
Every phone behave like that.
For me a useful trick was to change from GSM/(WCDMA preferred) to GSM/WCDMA auto as I'm hardly ever using 3G.
Phone chooses the strongest cell now, not just WCDMA cells.
I'm using CM7.2 and in CM forum there is a lot of issues considering 3G stability in Desire, so not much can be done.:crying:
Cheers

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