Z3 D6633 signal strenght problem, dBM value decresing and increasing abnormal - Xperia Z3 Q&A, Help & Troubleshooting

hello dear friend
currnetly my z3 lost signal and third party cant hear my voice however i hearing him/her well, actually i tried all ways like sim card changing, network testing or changing from gsm to LTE and finally i found out the my mobile has some malfunction
So the only way i think is about software downgrading
Is there anyway to fix this problem, sometime my antenna lost completely however my frined z3 is fully ok
please help me about this issue :crying::crying:
stock marshmallow 6.0.1

I have a similar problem. Everyones hears me right but my network signal is much more poor since Marshmallow update. Suddenly, when i'm calling someone the signal of both sims gets lost and the call gets cutted. After that the data conection desapears and i need to restart the system to get data conection again.
very disapointing.

yeah i have low bars and patchy voice quality after mm in my flat.

Same issue on D6603. Maybe a restore with pc companion is necessary

Related

Network issue

Hi everyone
I have an issue, when I'm on my office the network signal isn't strong so when my One S go to "NO NETWORK" after it don't go back to network.
When the situation is this I can't go to airplane mode, change operator (from settings), the only thing that work is shut down and restart (no fastboot).
Anyone else have this problem?
Maybe is a software bug?
I have the Paul recovery and su
EDIT: More info
That don't happen every time that the phone go to "no network".
I think that happen when it a weak signals and are under 2G network.
there are users with similar issues, I only use 2G networks. If i want to do a bit of browsing i will manually change to auto mode, but other than that i always leave it at 2G..
hopefully there will be a radio upgrade soon that should fix this problem...
I'm suffering from the same behavior!
I'm still with the original ROM with no ROOT so I contacted HTC about it yesterday.
I got today their reply today:
"On your phone, kindly go to settings > mobile network > Network mode, kindly change the network mode and check how the signal will respond to each of them.
-Kindly try a different SIM card, to check whether the issue is with the SIM card or the phone itself.
- Soft reset for the device by pressing the power button for 10 seconds.( Note that soft reset erases any unsaved data.)
- Safe mode(which disables any 3rd party application which might be causing conflicts for your device.) for the device by Switching power on , then press and hold volume down when the quietly brilliant logo appears on your screen, you should see 'safe mode' text written on the bottom left of your home screen.
- Factory data reset, kindly backup your data before proceeding with this step please as you will
lose every data on the phone's memory.
Please go to Settings > storage > Factory data reset > Reset phone."
I haven't done anything yet and I didn't notice the 2G issue you mentioned.
I also haven't got this issue for the last 48 hours but did encountered it twice (!!!) on Sunday while driving across the country.
I'll try having the Network on 3G only and see if that matters although the area I leave in is not with good 3G reception.
GSM is 2G
WCDMA is 3G
i use GSM only unless im using the net
I'm aware to the 2G-3G difference
I'm on WCDMA preferred so my phone tries to be on 3G.
My phone also suffers from the 3G<->H data connection jumps while the desire wasn't having any with the same provider (different SIM of course).
sorry, My bad !!
i understand what your saying now
I cant confirm much as my provider doesnt have 3g signals in my area
If i try to use 3g at my home, I have 0 bars thats why i always use 2g
I switched to 3G only (since I have most of the time 3G and surly wants it for the data rate).
I know I have on my way to work and back places with 2G only but I'll give it a try for the coming days and reply.
BTW, just few minutes ago, while having 3G active for sure (before the 3G only switch when it was still on 3G preferred) I couldn't make any phone call although I had 4-5 bars and data connection was running.
Two days ago I tried to change my sim.
Before I had a cutted microsim, now an original microsim and the issue is still present.
Yesterday I had this problem only in afternoon, not in morning and only where the switch from no network -> 2G -> 3G is very very frequent.
In all other times out from office I never had this issue.
I also changed SIM with no help, stayed in 3G network only with no help and observed that when such a network crash happened, GPS reception is also disconnected!
I had no coverage situations with the 3G only mode which recovered, but what we are facing is a network "crash".
Our situation was escalated to technical support of HTC after I wrote them all the data and they tried to solve it over the emails w/o success.
Same problem for me. I tried only 2G, 2G/3G, only 3G, but no way..same problem..i hope an update can solve this..
I just bought my new One S from T-Mobile yesterday and everything appeared to be okay but now I can barely get it to hold a signal. Forget throwing it on GSM only because it will have signal for a whole few seconds before dropping it. I also am having Wi-Fi issues as well. It just intermittently drops the connection there as well... Not a great start!
whether im imagining this or not im not sure, But for me it seems like, When the Network signal increases, the WiFi signal drops, And when the WiFi signal Increases, the Network signal drops...
ive been noticing this for over a week now, So it cant just be coincidence..
I dont think my (or our) handset is faulty, I just think theres a pretty big bug in the ROM, and no matter if you switch ROMs they all use the same base at the moment..
This phone has great potential. But HTC need to be listening to us and release some updates. !!
azzledazzle said:
whether im imagining this or not im not sure, But for me it seems like, When the Network signal increases, the WiFi signal drops, And when the WiFi signal Increases, the Network signal drops...
ive been noticing this for over a week now, So it cant just be coincidence..
I dont think my (or our) handset is faulty, I just think theres a pretty big bug in the ROM, and no matter if you switch ROMs they all use the same base at the moment..
This phone has great potential. But HTC need to be listening to us and release some updates. !!
Click to expand...
Click to collapse
I noticed the same exact issue last night. My phone will go to full signal before dropping whichever connection. I'm just glad this phone can handle staying on 4G without draining the battery like crazy although I can only imagine how much further it'd go with 2G.
Sent from my HTC VLE_U using xda premium
worms said:
I have an issue, when I'm on my office the network signal isn't strong so when my One S go to "NO NETWORK" after it don't go back to network.
(...) the only thing that work is shut down and restart (no fastboot).
Click to expand...
Click to collapse
Exactly the same here. But I had a different WIFI issue - WIFI won't drop but stay connected - even if I am far away off the AP.
killerm said:
Exactly the same here. But I had a different WIFI issue - WIFI won't drop but stay connected - even if I am far away off the AP.
Click to expand...
Click to collapse
that one is also a known bug.
On top of that, WiFi will sometimes stuck at "error" status with no ability to turn it on...
All probably related to the same network chip driver or "Radio"...
I have same network reception problem. When I am in a poor reception area it loose reception all of a sudden and takes a while before getting the signal back. I often toggle flight mode to force network detection. I also think the reception bars don't reflect reality; sometimes it seems I have good 3G reception but cannot surf the web. I fear it is a critical bug. The phone seems unable to handle correctly signal fluctuations and protocol changes (GSM, 3G, HSDPA).
I'm colletting more data about this problem.
First of all I don't have any wifi issue, or maybe I don't see this.
I have a modem with N standard and one with G standard and nothing of this have issue.
About the network issue in this days I never have, only when I'm in office and the signal suck a lot.
Q: Anyone that have Tmobile/mod rom with 1.70 RUU have this issue?
worms said:
I'm colletting more data about this problem.
First of all I don't have any wifi issue, or maybe I don't see this.
I have a modem with N standard and one with G standard and nothing of this have issue.
About the network issue in this days I never have, only when I'm in office and the signal suck a lot.
Q: Anyone that have Tmobile/mod rom with 1.70 RUU have this issue?
Click to expand...
Click to collapse
I don't have wifi issue at work with a powerful 802.11n network AP but experienced occasional fake/unstable/disconnect wifi at home with a poor AP which operates on no-one-knows-but-definitely-not-N network. I don't really bother too much cos I can always turn wifi off and on to reconnect.
In terms of 3G/H signal switching problem, yes, a bit annoy especially when playing online game on 3G but accessing internet is fine just need to sometimes wait a bit longer.
I am on international unbranded version in UK.
I've the same problem in France about 3G/2G and wifi on international unbranded version.

[Q] nexus 5 not connecting to any cellular network

I took a nexus 5, 6 months back, i had updated it to 4.4.4. Since yesterday it ws behaving wierdly. My network would just drop and then upon searching for networks under mobile networks, i was able to reconnect bt suddenly it jst stopped working. i wasnt able to connect to any cellular network on any sim card whereas the same sim card was working on other devices. even on searching for mobile networks i couldnt find anything. i tried every possible thing, i switched to android L, and even downgraded my phone to 4.4.2 bt absolutely nothing worked (i knw that means unlocking my bootloader and i have lost warranty but i had to try something). please help me out, this is getting toooo annoying (P.S i dropped my phone once, got a very minor bump, is there by any chance a hardware issue due to that?) it is connecting to wifi network and bluetooth perfectly
If you've flashed a clean stock image, then unfortunately it's likely hardware. Antenna may have been damaged when it was dropped.
Or its a carrier issue. Or Sim. Did you try a friends Sim that's the same size?
I've been having fun same problem got the past week or so. I'm on T-Mobile and I have had no service, or service dropping to "H." Mostly it's just no service, then "low" service.

Voice Calls distorted when connected to WIFI & LTE

Hi guys,
wanted to gauge a response from the Z3 members here whether they are also having the same issues that I, and a number of other Z3 owners are facing, wherein voice calls are distorted and muffled on my end (I can't make out what the other person on the line is saying) but the person on the other side of the call can hear me fine. This only occurs when:
1) WIFI is on and connected
2) LTE is enabled and connected
Other points to note: I'm in Melbourne, Australia metro area and on the Optus network. One workaround I have found is if I want to use WIFI - I need to switch from LTE/4G to GSM Only in my network options.
I have exchanged my Z3 4 times now and the same occurred on all 4 devices. My wife's Z3 compact is also encountering the same issue.
The issue has been raised in the Sony Talk support forum here but has not had any positive traction at all..
http://talk.sonymobile.com/t5/Xperia-Z3-Z3-Dual/xperia-Z3-and-Z3c-Distorted-Voice-Calls-When-Connected-to-WIFI/m-p/901071#U901071
Have added a poll to see how many other users are facing this issue so that Sony can pull their finger out their a55es and fix the issue!
Hi all, looks like the update 23.0.1.A.5.77 just released has fixed the issue with distorted calls when connected to WIFI+LTE! I've installed it on both my Z3 and my wife's Z3 compact (which was also facing the same issue) and the calls are now all crisp and clear when connected to both WIFI and LTE at the same time. Also, looks like I'm getting better reception too. Wonder what else was fixed/introduced as part of the update.
I have noticed this from my WIFI calling on T-Mobile Version. LTE I have no issues... however any WIFI calling has been pretty damn poor to date. I hope they will release a similar update to fix this issue!

Xperia Z3 not recovering lost signal/data

I have this problem with my Z3. I commute to school by train and every now and then I lose signal because of tunnels etc. But the phone is having a hard time recovering signal. Sometimes I have to reboot. Sometimes theres the red X on the SIM icon but usally it's just that there's good signal strenght but no data connection. Other times a reboot doesn't solve it instantly and I'll just have to wait. Or I have to go and manually select my carrier (Tele 2, Sweden) but it doesn't work all the time either. So there's no consistent fix.
Anyone else experiencing the same problem? On my way home 2 stops before mine there's a tunnel where you always lose reception and sometimes I can't even recover it before I get of the train 10 minutes later in an area where you normally have full reception.
I've got a D6603, rooted .77 (PRFCreator). The problem started occuring before rooting. Can't remember if it was before updating to .77 (Had .77, downgraded for root then upgraded again). Carrier is Tele 2 in Sweden.
Info
lol1rfs said:
I have this problem with my Z3. I commute to school by train and every now and then I lose signal because of tunnels etc. But the phone is having a hard time recovering signal. Sometimes I have to reboot. Sometimes theres the red X on the SIM icon but usally it's just that there's good signal strenght but no data connection. Other times a reboot doesn't solve it instantly and I'll just have to wait. Or I have to go and manually select my carrier (Tele 2, Sweden) but it doesn't work all the time either. So there's no consistent fix.
Anyone else experiencing the same problem? On my way home 2 stops before mine there's a tunnel where you always lose reception and sometimes I can't even recover it before I get of the train 10 minutes later in an area where you normally have full reception.
I've got a D6603, rooted .77 (PRFCreator). The problem started occuring before rooting. Can't remember if it was before updating to .77 (Had .77, downgraded for root then upgraded again). Carrier is Tele 2 in Sweden.
Click to expand...
Click to collapse
u need to repair ur firmware phone by PC Companion to install fresh stock rom
it means u will lose root access but u have to do this to realize if thr s software problem or faulty hardware.
:good:
lol1rfs said:
I have this problem with my Z3. I commute to school by train and every now and then I lose signal because of tunnels etc. But the phone is having a hard time recovering signal. Sometimes I have to reboot. Sometimes theres the red X on the SIM icon but usally it's just that there's good signal strenght but no data connection. Other times a reboot doesn't solve it instantly and I'll just have to wait. Or I have to go and manually select my carrier (Tele 2, Sweden) but it doesn't work all the time either. So there's no consistent fix.
Anyone else experiencing the same problem? On my way home 2 stops before mine there's a tunnel where you always lose reception and sometimes I can't even recover it before I get of the train 10 minutes later in an area where you normally have full reception.
I've got a D6603, rooted .77 (PRFCreator). The problem started occuring before rooting. Can't remember if it was before updating to .77 (Had .77, downgraded for root then upgraded again). Carrier is Tele 2 in Sweden.
Click to expand...
Click to collapse
I also have this issue, when I switch to CM12, the signal back. I don't know why my D5563 can't get data traffic from stock ROM :crying:
I have the same issue but with calls. If my signal is low and I try calling someone no one can hear me and it drops. I am on Telus, stock generic firmware. Going to try reinstalling it once the files finish redownloading.

Phone losing signal strength after rooting

i went to the service centre after a touch problem showed up on my phone and they told a software update is available and my phone was loaded with Cyanogen OS 12.0. But since it did not have any rooting capabilities, i went ahead and looked up some tutorials but could not find one and therefore ended up using king root. But now after some time i've realised that my phone has lost its signal strength, first sim (being of jio) almost never receives signal and though my second sim (airtel) shows signal strength, the person on the other side is not able to hear my voice(only some cracks and disturbance). The mic is working fine as i tested it on sound recorder.
So, i want to know is it a software problem that can be solved at home or i'll have to go to service center(which i would like to avoid as it's far away from my home)

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