Z5P poor reception - Xperia Z5 Premium Q&A, Help & Troubleshooting

Reception is poor my Sony Z5P. O barely get one bar 4G, where as using the same sim on my Nexus 5 gives me a solid 3 bars 4G.
Is my Z5P faulty or it has bad reception due to the metal casing or the is it the 4G bands? I'm on three(UK) network and my phone is the E6853 model.

I am having the same issues I get all bars in the house however outside of the house down to one bar very bad not sure what the problem is.
Sent from my E6853 using Tapatalk

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Signal strength issues?

I am not one who has run into the LOS just yet, and here's to hoping I don't.
However... I do have terrible signal pretty much inside anywhere. Outside or in the car I have had pretty decent signal everywhere I have gone. However whenever I am inside pretty much anywhere I get 0-1 bar at best, and often even roaming does not function.
Is anyone else experiencing anything like this?
Is there any development for fixes for improved signal/antenna? Is this even possible?
Thanks a lot for everyones time.
That sounds pretty bad. I did notice that the Epic 4G Touch's signal strength is often 1-2 bars lower than the Evo and Evo 3D. This does include inside locations, so I've resorted to using Google Voice for texting and Groove IP for phone calls when I have Wi-fi.
Maybe take the phone to a store that has the same phone in stock and compare signal strength?
I just got this phone a few days ago switched from Verizon and this thing is always roaming im outside at a dog park and its roaming this cant be sprints service im guessing horrible signal strength.
Sent from my SPH-D710 using XDA App
thedeadletters said:
That sounds pretty bad. I did notice that the Epic 4G Touch's signal strength is often 1-2 bars lower than the Evo and Evo 3D. This does include inside locations, so I've resorted to using Google Voice for texting and Groove IP for phone calls when I have Wi-fi.
Maybe take the phone to a store that has the same phone in stock and compare signal strength?
Click to expand...
Click to collapse
Bars are not a comparison of signal strength between phones you have to look at dbs
Sent from my Samsung Galaxy S2
I just got the phone a couple days ago and I was having the same issues inside my house. I could not even get the xda app to load. I took out the default proxies and it has helped, at least it feels like that to me.
Sent from my SPH-D710 using XDA App
This is a well known issue that's been talked about since its release. Hopefully it will be on the list of things they try and fix in they first OTA update along with LOS and Android OS
Not saying this applies to everyone, but I figured out why the particular E4GT I was testing had such jumpy signal levels. I was doing side-by-side comparisons with an Optimus S using menu->settings->about phone->status.
It appears the E4GT has very little granularity with signal strength reporting. It only goes by increments of 5 dBm, whereas the Optimus reports signal levels at a granularity of 1 dBm.
For E4GT, -106 dBm = 0 bar, -101 dBm = 1 bar, -96 dBm = 2 bar, -91 dBm = 3 bar - 86 dBm = 4 bar, -81 dBm = 5 bar, and -76 dBm = 6 bar.
Problem in my main test area is the signal is somewhere between -93 dBm and -98 dBm according to the Optimus S. Whereas the Optimus S can react to small changes in dBm with equally small changes in reported signal strength and "# bars", the E4GT tends to like jumping from -91 dBm to - 101 dBm and back. It only reports certain discrete levels and it appears to be rounding up and down (based on side-by-side signal comparison to Optimus S) They both go up and down at roughly the same time, but Optimus S does it smoothly over time. E4GT just does the signal change reporting very abruptly with 5-10 dBm jumps.
Second thing I noticed is hand and phone positioning really affect the signal strength. The antennae/transmitter appear to be at the bottom hump on the phone. If I place my hands over that area holding the phone normally I can go from 3 bars (-86 dBm) down to 0 bars (-106 dBm). Data starts getting very iffy at -106 dBm but still kind of works, just real slow. If I hold the phone in the middle or near the top, I almost always get the same or better signal. I also found the phone gets the best signal when it is held flat, rather than perpendicular to the ground. In fact the best signal I get is when I'm not holding the phone at all, and instead lay it flat on the table.
Again, I'm not saying every phone behaves this way nor am I saying this explains everyones' signal issues. I'm just relaying my experiences.
BTW the signal levels when laid flat on a table side-by-side to the Optimus S is very comparable, almost the same (minus the lack of granularity). However when I'm holding both phones, the E4GT has generally 5 dBm worse signal, sometimes 10 dBm if I'm holding normally and covering the bottom of the phone.
That is very interesting sfhub.
I really hope the OTA has some bearing on these issues. I really wish it would come out sooner than later. I have another week or so to decide to keep this phone or not and really don't know regardless of if an OTA is released whether i will keep it or not.
There is a lot to like and a lot to drive you crazy about this phone.

Weak Wifi signal on stock

I am using 4.0.2 stock version and wifi signals are pretty weak. Is there any tweak or some settings i can flash to get better wifi reception . . .
I am having the same problem. Out of 5 phones in the hotel lobby (HTC Desire, HTC Wildfire, Iphone 4 and Nokia N97) my Galaxy Nexus had the weakest signal, and sometime even lost the wlan.
I notice wifi signal drop when i cover the top part of my nexus with my hand
tested in speedtest, it also shows slightly lower signal bars, are you using a wireless N router?
Try flashing different basebands to see if signal improves. Also, I recommend franco's milestone 2 kernel since it has a setting to amplify your wi-fi signal (at the expense of lower battery life)
I don't have this problem in fact my wifi speeds are insane
Sent from my Samsung GNexus <3
koszor said:
I notice wifi signal drop when i cover the top part of my nexus with my hand
Click to expand...
Click to collapse
The WLAN antenna is to the middle right of the phone when you look at the display in portait mode.
If I make sure that area is not covered by my hands the reception is quite ok with my Nexus.
http://www.ifixit.com/Teardown/Samsung-Galaxy-Nexus-Teardown/7182/1
I took an old router and made it a repeater bridge, problem solved.
woultypt Sharpe
I find the radio on the phone is quite weak to begin with. iPhone lasts much longer out of town where I live.

Wifi death grip

Hi,
I've had my GSM galaxy nexus for about a week now and have noticed that the signal strength will drop consistently when touching the back of the phone.
This is usually by one bar on the status bar meter. I've installed Wifi Analyzer and see that the signal will drop from around -55 dBm to -70 dBm when fully covering the back. The drop will be smaller with less of the back of the phone covered, but is still noticeable. The worst area for causing signal drop seems to be just below the camera lens.
Is this common to the galaxy nexus, or is there something unusual about this particular one?
Jon_V said:
Hi,
I've had my GSM galaxy nexus for about a week now and have noticed that the signal strength will drop consistently when touching the back of the phone.
This is usually by one bar on the status bar meter. I've installed Wifi Analyzer and see that the signal will drop from around -55 dBm to -70 dBm when fully covering the back. The drop will be smaller with less of the back of the phone covered, but is still noticeable. The worst area for causing signal drop seems to be just below the camera lens.
Is this common to the galaxy nexus, or is there something unusual about this particular one?
Click to expand...
Click to collapse
I am not really seeing my signal fluctuate. I am using the GSM version.
Sent from my Galaxy Nexus using xda premium
Your just holding the phone wrong, try using a case.
Had this problem too, but it's not an issue to me.
Beamed from my Maguro
phatmanxxl said:
Your just holding the phone wrong, try using a case.
Click to expand...
Click to collapse
LOL
Sent from my Nexus 7 using Tapatalk 2
phatmanxxl said:
Your just holding the phone wrong, try using a case.
Click to expand...
Click to collapse
Steve Jobs resurrected?
I noticed some signal weakness (both wifi and calls) since i updated to jelly bean. I guess we'll have to wait for a better radio than XXLF1.
Sent from my Godzilla Nexus
I notice this also. I have the GSM version. When I'm at work or home my wifi and cell signal will go away or say its looking for network when holding it at certain spots. Its really making me miss my sgs2 because my wifi and data would load faster with that then this.
Sent from my Galaxy Nexus using xda app-developers app
phatmanxxl said:
Your just holding the phone wrong, try using a case.
Click to expand...
Click to collapse
Hmm, I don't see the word Apple anywhere on the phone..
Was having issues with XXLF1, ever since is swapped to UGLH1 reception for WiFi and 3G have been really good. I have some bad interferences at home (blame that on the carrier I'm not on) , but once outside it works great.
Do bear in mind radio has differences across devices, so what works force may not work for you.
Sent from my Galaxy Nexus using Tapatalk 2
didn't even notice til you brought this up, thanks!!!
lose about 5-10 dbm if i cover the phone with my hand
You're holding it wr......oh never mind.
Sent from my Galaxy Nexus using Tapatalk 2

Phone switches to edge

It rarely happens. But when I'm in a big warehouse my phone get's 2G , while a t mobile note 3 sticks on LTE one bar. Sometimes my phones will get no signal while the note 3 is holding one bar on edge ?
Likely due to the aluminum construction of the phone. I get slightly lower signal than I did on my Note 3.
Sent from my HTC One_M8 using Tapatalk
Weird I get much better signal with my m8 than what I ever did with my n5 but the n5 has a pretty crappy baseband
sent from my viperm8

Dropped Z5 premium poor signal

I just bought a used Z5p with broken rear cover. Cover is easy to change but it seems that this phone has some problems with signal quality also. First it got only 0 to 2 bars on 3G. No signal on 4G or GSM.
I changed the upper and lower corner antenna modules and the RF cable. Now it can get 1 to 2 bars of 4G. 3G is changing constatly between 0 and full signal. GSM still 0. All data still very slow. Galaxy A5 with same sim gets 8/1 from speedtest and Sony 1/0. Both show similar two bars 4G, -105 - 110 dBm.
Is there something to try still or should I just scrap it?

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