Xperia Z antenna - Xperia Z Q&A, Help & Troubleshooting

Hello XDA community.
I got some problems with my network signal indoors . Outside I have no problem , the GSM signal is full all the time but inside it's showing no signal or 1 bar sometimes...
I tried different GSM carries , same problem.
Should I change XZ's antenna ( cable , cover and contacts ) ?

Ditto
I have a similar problem.
I'm the second owner and this phone has no gsm network signal unless i'm standing on a hill next to a tower....then i'll see full bars

thetruejayj said:
I have a similar problem.
I'm the second owner and this phone has no gsm network signal unless i'm standing on a hill next to a tower....then i'll see full bars
Click to expand...
Click to collapse
try removing SIM CARD from the device clean it little with any dry thing and put it inside you device if didnt helped try hard restart if didnt helped try reflash you rom if didnt helped that means the antenna is damaged

Related

Losing phone signal when switching from 3G->Edge

When I leave 3G and enter Edge my phone loses the signal for a while. A soft reset can bring it back immediately. I posted elsewhere and was told it might be a WM6 error.
Am I alone in experiencing this? It's a really noticeable lag until it regains a signal.
I see the same but have the same problem on my Nokia's also. I live right on the fringe of 2 cell sites. One is 3G the other not and sometimes I end up with no signal at all. On my Tytn I used 2 switch of the 3G when at home!
Doesn't help you much but thought I would let you know....
Al
Yep, I have this problem as well. When I go into the basement of our office, it's on an extended antenna that Cingular installed so it only does EDGE. When I get above that I hit another antenna that has 3G, 1 time out of 20 it doesn't switch properly and I have to do a soft reset for it to begin to switch networks properly again.
Neonwheels said:
Yep, I have this problem as well. When I go into the basement of our office, it's on an extended antenna that Cingular installed so it only does EDGE. When I get above that I hit another antenna that has 3G, 1 time out of 20 it doesn't switch properly and I have to do a soft reset for it to begin to switch networks properly again.
Click to expand...
Click to collapse
WHat country do you guys live in? + provider?
I think its a provider problem

My kaiser has poor or no signal...

From some days my kaiser has no signal or very poor signal. I try SIM in other phone but it works. So i think it's a kaiser problem and do:
hard reset
flash new rom
flash many radio rom
unlock network/cid/security
But is always the same.
So I think that it's an hardware problem then i remove antenna clean the contact (both side, board and antenna),
Nothing. It's always the same.
Let me know if anyone has this problem and how to solve...
A lot of thanks
I'm having the same problem in the US. Recently, AT&T sold numerous towers to Verizon. After that, my 3G/H signal decreased a lot. I can go to COMM manager and turn off 3G and the Edge signal is strong.

Signal strength bars fluctuating

Hi guys, I just got my Incredible S yesterday, and I absolutely love this phone!! The only problem so far is the fluctuating signal bars. I'm not sure if this topic has been discussed here, but it seems to me that when I hold the phone...my signal gets weaker. When I put the phone on down..the signal gets stronger. Does a rubber or silicone case help as far as limiting signal interference?
Are you talking wifi signal or 3g signal?
mrHD2 said:
Are you talking wifi signal or 3g signal?
Click to expand...
Click to collapse
I'm talking about 3G/H. It's such a shame. I really liked this phone, but designing the antenna on the battery cover is a huge flaw. What were they thinking?!!??
I also have the signal strength fluctuations. I have tried everything: changing the SIM card, changing operators (Swisscom and Sunrise), changing settings GSM alone, WCDMA alone, and GSM/WCDMA auto, and soft reset. The only thing I have not yet tried is a hard reset.
I wonder if somebody else has the same problem? The consequence of this problem is that often times the quality of the calls is lousy and/or the calls are dropped.
Please help me..
Have to say, my signal level is dreadful compared to my bog standard Nokia mobile phone in low signal areas, I get no signal on my Inc S while 2 or sometimes 3 bars on my Nokia. It's really spoiling an otherwise brilliant device. One thing I was wondering is if changing radio from the 22_M to the 27_M might help, anybody know what the difference between them is ?
and, data does not work over 50% of the time on gprs, but fine on hsdpa/3g/edge, don't know if that's also down to poor signal reception ?
I had the same problem with my IS. when the internet connaction GSM/WCDMA auto i had many unexeptable call ends. I put the internet connection to GSM only and every thing is ok. Acording to info i have the problem is in some operaters new software when the network type changes the telefone cannot change it normaly.
After visiting other fora, I have a crucial question to ask: is the reception problem (fluctuating bars, dropped calls, WiFi disconnecting) a generalised problem, or, rather, is my phone faulty, and therefore should I have it repaired?
HTC update the radio module immediately....
atn_chargers said:
Hi guys, I just got my Incredible S yesterday, and I absolutely love this phone!! The only problem so far is the fluctuating signal bars. I'm not sure if this topic has been discussed here, but it seems to me that when I hold the phone...my signal gets weaker. When I put the phone on down..the signal gets stronger. Does a rubber or silicone case help as far as limiting signal interference?
Click to expand...
Click to collapse
I also believe that the desire s has this same problem they are similarly designed devices now running with very similar software.
even though at times signal can be great without moving it can drop to nothing and I'll lose all signal, which I believe has caused me miss several calls as they've gone to voicemail rather than ring on the phone.
I'm hoping that an upgrade to the phones radio will fix/improve this over time (the optimistic outlook)
Sent from my HTC Desire S using XDA Premium App
signal
its the antenna design =Fail , put it flat on a desk and dont hold it and watch your signal go up pick it up and its like an hour glass going down
I am now arriving at the conclusion that sound quality and dropped calls (and bars fluctuating) can be explained by a connection problem when using GSM/WCDMA Auto. The problem disappears when using GSM Auto. Any views?
Same here, but it is better on "wcdma only" either. I'm suspectinig it has issues only when switching between wcdma and gsm

Signal drop problem

I have two weeks old o2x and o2 carrier, and i have very often signal dropping.
It drops signal during phone call or i can see red X above signal bar from time to time. I have to hit automatic search for network to connect again...
Anybody with same problem? Is it software or hardware based?
I have V10C, it is latest for my country...
thx
Mayb your holding it the wrong way.
The antenna is located on the bottom of the phone.
So keeping your phone tight during call can drop signal.

Signal problems

I already posted about this problem but then I thought it was due to sleep mode.
So I still have signal problems with my One.
I saw that I had only one or two bars for the signal where I had a lot better reception with other phones.
I already put my sim card into a Galaxy S3 and a Galaxy Y, both of them have a far better reception than the One (4 to 5 bars).
My phone was already sent back for repair three times, they already swapped my motherboard two times, but it does not help.
The last time I got a bit angry in the shop so they took my phone in to test it out.
After four days they said they had no signal problems.
Last resort, another swap of the sim card card but now the signal is even worse.
I did notice when rebooting the phone it starts of with five bars and after two minutes or so it goes down to one or two.
When making a call with one bar it goes up when calling to four or five, some time after the call it goes down to one or two.
I already installed signal Guard Pro to check for effective signal loss and I had quite a lot durng the day as during the night.
I got the name of the customer service manager for the Benelux and France (Aernout Arends) but I do not have any contact information of this man apart from his linkedin.
So I sent him a Linked In invitation. If he responds I can ask him about this phenomenon.
Before the One I had a Sensation XE which I was very pleased with, since running on the One this problems started after a couple of months and since then it keeps on going.
I'd like to solve this since it was an expensive phone, apart from the signal loss I'm still very pleased with it but in the end a phone is used for calling and with a bad signal this is compromised.
I hope anyone out there can help me (or somebody at HTC), if not I need to buy another phone and I think I cannot sell this one since it isn't working properly.
deboopi2 said:
I already posted about this problem but then I thought it was due to sleep mode.
So I still have signal problems with my One.
I saw that I had only one or two bars for the signal where I had a lot better reception with other phones.
I already put my sim card into a Galaxy S3 and a Galaxy Y, both of them have a far better reception than the One (4 to 5 bars).
My phone was already sent back for repair three times, they already swapped my motherboard two times, but it does not help.
The last time I got a bit angry in the shop so they took my phone in to test it out.
After four days they said they had no signal problems.
Last resort, another swap of the sim card card but now the signal is even worse.
I did notice when rebooting the phone it starts of with five bars and after two minutes or so it goes down to one or two.
When making a call with one bar it goes up when calling to four or five, some time after the call it goes down to one or two.
I already installed signal Guard Pro to check for effective signal loss and I had quite a lot durng the day as during the night.
I got the name of the customer service manager for the Benelux and France (Aernout Arends) but I do not have any contact information of this man apart from his linkedin.
So I sent him a Linked In invitation. If he responds I can ask him about this phenomenon.
Before the One I had a Sensation XE which I was very pleased with, since running on the One this problems started after a couple of months and since then it keeps on going.
I'd like to solve this since it was an expensive phone, apart from the signal loss I'm still very pleased with it but in the end a phone is used for calling and with a bad signal this is compromised.
I hope anyone out there can help me (or somebody at HTC), if not I need to buy another phone and I think I cannot sell this one since it isn't working properly.
Click to expand...
Click to collapse
is it switching networks (3g/4g LTE)? voice can't use LTE 4g, so it will drop back to 3g for calls and then go back to LTE 4g once the call is done.
signal bars are a really poor way to understand your signal strength. there are some apps that help (network signal info for example) which show your strength in a more efficient manner, as well as what network type you're connected to.
cr1960 said:
is it switching networks (3g/4g LTE)? voice can't use LTE 4g, so it will drop back to 3g for calls and then go back to LTE 4g once the call is done.
signal bars are a really poor way to understand your signal strength. there are some apps that help (network signal info for example) which show your strength in a more efficient manner, as well as what network type you're connected to.
Click to expand...
Click to collapse
I turned 3G/4D off, I only turn it on when necessary, so that won't be the cause.
I installed network signal info right now and when I have one bar signal, this app gives me -102 db to -105db and it's over haf of its bars here, this info seems to look like mi signal is a lot better than the one bar I got.
deboopi2 said:
I turned 3G/4D off, I only turn it on when necessary, so that won't be the cause.
I installed network signal info right now and when I have one bar signal, this app gives me -102 db to -105db and it's over haf of its bars here, this info seems to look like mi signal is a lot better than the one bar I got.
Click to expand...
Click to collapse
you can set a value in your build prop that is specific to signal 'adjustments' from your particular provider. might then give you more realistic values along the lines of the Network Signal Info app.
I'm sorry I can't direct you to the link as I don't have it bookmarked.
*edit*
found it: http://forum.xda-developers.com/showthread.php?t=2594804

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