Reception Strength - Xperia Z3 Compact Q&A, Help & Troubleshooting

I'm on T-Mobile and my previous phone was Dev Edition Moto X. I'm noticing what appears to be weaker reception on my Z3C. Is anyone else noticing this? Perhaps it's just a difference in how the reception bars are represented?

Look at the actual strength in the settings, status menu.
Motorola is known for particularly good signal strength....

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[Q] Signal strenght problem

So if we have root finally can someone tell me if there is any way to resolve the signal strenght problem?? It looks like Droid 3 has different perception of signal strenght than my Motorola Milestone... When my milestone has signal about -83dB it has all 4on4 bars of signal strenght, and on Droid 3 -80dB means 2x4 bars...
the problem is when the signal is around -90 dB... Milestone has than 2on4 bars and Droid 3 has 1on4 bars or is Out of service...
Is there any file in the system that manage D3's perception of signal???
Hope You can help me somehow...
When I got this phone I wondered about that myself. But I never had any issues with calls.
I'd say a new rom might be the answer, but hey...
This sounds like the same issue with Droid 2 Global. Try switching to 2G and see if bars "increase" so to say. On D2g it is more of a cosmetic issue, even Cyanogenmod ROM for that phone applies fix, so bar count is displayed properly.
Edit: on Motorola XT860 this works normally (compared to D2g it seems to get better reception too). For non-Verizon users, I strongly recommend this version over the US D3
To which setting do you put your "Set preferred network type" under *#*#4636#*#* ?
Mine is set to "GSM Auto (PRL)"
Also, TELUS doesn't have a 2G network, so I can't test that option.
My phone is rarely at 5x5, mostly 3x5 or 4x5. My previous Milestone almost always had 4x4.
You can also check your signal strenght over time if you check your battery stats and click on the graph at the top of your screen.
The first bar should be Green, yellow, red or gray depending on your signal strength.
mikenius said:
So if we have root finally can someone tell me if there is any way to resolve the signal strenght problem?? It looks like Droid 3 has different perception of signal strenght than my Motorola Milestone... When my milestone has signal about -83dB it has all 4on4 bars of signal strenght, and on Droid 3 -80dB means 2x4 bars...
the problem is when the signal is around -90 dB... Milestone has than 2on4 bars and Droid 3 has 1on4 bars or is Out of service...
Is there any file in the system that manage D3's perception of signal???
Hope You can help me somehow...
Click to expand...
Click to collapse
I've had 3 replacements, first for out of service, then also screen and vibrate issues. All had the loss of service even with lots of towers near me. Usually a reboot fixes it but it's getting very annoying . Had a high level ticket opened with them and eventually was written off as a droid 3 issue and closed. They just don't want to help.
SX86 said:
To which setting do you put your "Set preferred network type" under *#*#4636#*#* ?
Mine is set to "GSM Auto (PRL)"
Also, TELUS doesn't have a 2G network, so I can't test that option.
My phone is rarely at 5x5, mostly 3x5 or 4x5. My previous Milestone almost always had 4x4.
You can also check your signal strenght over time if you check your battery stats and click on the graph at the top of your screen.
The first bar should be Green, yellow, red or gray depending on your signal strength.
Click to expand...
Click to collapse
I am with Rogers and signal indicator is most of the time on 5 bars. I've seen it go down to 4, usually indoors, very seldom down to 3 or 2. I am yet to see 1 bar only or no bars at all (which wasn't at all unusual on my D2G
In that case, it must be a phone model vs cell towers (Bell/TELUS, Rogers) issue.
leobg said:
This sounds like the same issue with Droid 2 Global. Try switching to 2G and see if bars "increase" so to say. On D2g it is more of a cosmetic issue, even Cyanogenmod ROM for that phone applies fix, so bar count is displayed properly.
Edit: on Motorola XT860 this works normally (compared to D2g it seems to get better reception too). For non-Verizon users, I strongly recommend this version over the US D3
Click to expand...
Click to collapse
I tried to change it to 2G only and it works and it shows 4/4 bars... however I use internet so 3G/HSPA is my preffered network and on 3G it shaws usually 1-2 bars and from time to time it drops the signal... It has to be software problem because when I change it to GSM Auto PRL from GSM only and it was at 2G showing full range it stays at 2G but shows 2 bars... so another MOTO bug... :/ but i would like to find out how to change it...

Updated to 4.3 Firmware and have less signal bars? Read This!

I've seen some people post regarding less/lower signal bars when updating to the new radios which come with 4.3 and you have LTE.
At first I said "WTF" but then I realized... the bars are now sort-of working as intended...
Let me explain,
If you're connected to LTE, the bars are now based off your LTE signal strength. I noticed even at roughly -110 to -100 I only get one bar. I believe the bars start going up dramatically once you have a signal strength greater than -100 (for example, -95db, -85db) And we all know -130db is the cutoff before we lose LTE.
I figured this out once I turned the phone to "CDMA only" to test. Once on "CDMA only" I had almost full bars, (-70-75db for 3G/1x)
To conclude, if you're on LTE and only have 1 bar, you most likely/probably have great cell phone coverage as that 1 bar is determining signal strength for only LTE. When connected to LTE, you're also still connected to 1xRTT which is used for voice. LTE is only used for Data at the moment.
If you really want to test your cell phone coverage, you can get one of those programs to tell you both your 1x signal and 4G signal simultaneously.
Edit: I forgot to mention, Considering the LTE radio and 1x/3g radio are seperate, you're going to get mixed results depending on signal penetration through walls, trees, etc. From what I've seen so far, as of right now 1x/3g penetrates a bit better than LTE. But, really depends on your surroundings
Thanks for the info. Someone else tipped me off about this, and a few SpeedTest checks confirmed it. In fact, 1 bar with the 4.3 ROM produced slightly better results than the 4.1 ROM with 5 bars.
ED2O9 said:
Thanks for the info. Someone else tipped me off about this, and a few SpeedTest checks confirmed it. In fact, 1 bar with the 4.3 ROM produced slightly better results than the 4.1 ROM with 5 bars.
Click to expand...
Click to collapse
Yup, which makes sense because when connected to LTE on 4.1 the 5 bars are based off your voice coverage, not LTE strength.
Still seems kind of dumb. I'd rather know what signal I have to make a phone call rather than what kind of data I can expect.
Thanks for info !
Sometimes just 1 bar but internet working well, but 4-5 bars it is not working/slower !

Moto G5S plus always has low signal

Hello. I have a Moto G5S plus using a Verizon Sim. I had a Moto G5+, but gave it to my cousin and got the G5S+. The G5+ always had full bars in my house. However, the G5S+ has full bars sometimes, but gets only 1 bar a lot of the time. It fluctuates a lot. It seems to mostly become low signal when its asleep. They both will be using the same Sim card and network, but their amount of signal differ greatly. I also tested the signal with a Nexus 6P, Galaxy S4, iPhone 6S plus, Moto E2, and Moto E4. Each of them have full signal in my house all the time while the G5S+ gets 1 maybe 2. The wifi range also seems to be less compared to the G5+. I thought maybe I got a defective unit, but I got a replacement from Motorola and the replacement is exactly the same way. Is this just how the phone is? Did I possibly get a 2nd defective device? Or is it potentially a software problem and can be fixed with an update, if Motorola ever ever decides to? Not having signal when another phone will somewhere is a deal breaker for me. Can this be fixed, or should I just get a G5+? Thank you.
I'm afraid I've got the same problem with a straight talk verizon sim. I was running unofficial lineage 15 and now i'm running gzr validus (also oreo). In both cases I get either a very poor 1 bar of 4g, or 2 or 3 bars of 3g at home while my girlfriend is pumped all the way with lte on her verizon iphone. We have been in several other places where I complained about the signal and hers was fine. I switched to this phone because it can handle verizon (I WAS on virgin mobile/sprint with my moto G osprey getting FINE lte coverage but wanted to switch to verizon because their coverage is just a little better around here)! Well Now I'm On Verizon and guess what, my coverage sucks worse than ever. I actually hit 1x pretty frequently while driving around. It's pretty sad actually. I wish I could take the cameras and internal storage of this phone but have them back in my osprey. sanders looked great on paper but in practice has not been good to me.
Same with straight talk (which uses att). Same sim in my 6p in same location shows at least 3 bars. This drops to none sometimes, but everything still works fine, speed tests are the same regardless of bars. Even flashed a newer modem, no difference. Really wish the 6p wasn't about to die. But really, for $300,v this isn't a bad device, except for the camera. Hoping to see more development for this. I haven't but a rom in years, but was thinking about doing it again. Need more options!
It may not exactly answer your doubt but the network bars are not true indicator of the signal reception.
Check the network strength in Settings ->About Phone -> Status -> SIM status.
Less negative means more powerful signal. You can compare the signal receptions of the phones this way.
tarun0 said:
It may not exactly answer your doubt but the network bars are not true indicator of the signal reception.
Check the network strength in Settings ->About Phone -> Status -> SIM status.
Less negative means more powerful signal. You can compare the signal receptions of the phones this way.
Click to expand...
Click to collapse
Hello and thank you for your reply. Here is a screenshot. It seems to have -84. The Moto G5+ would have the needle slightly better around -76 and the Wifi one completely to the right. It seems less strong than the G5+. Though what I mainly have been looking at the battery stats of G5S+ where it shows yellow being yellow for a long time or just alternating, while the G5+ would be green the entire time. It also seems to stay yellow when my screen is off for a while. Do you think this is a fixable through updates problem?
Mine is also unstable. It can goes from 4 bar to 0-2 bar in a blink. I checked with LTE discovery, it is even funnier, -89dbm 1 bar, -84dbm 3bar and it goes to 1 bar, then -88dbm 3 bar. I don't even know what the programmed range for each bar anymore.
It seems like this is quite common, even at Lenovo Moto forums, there are a lot of thread complaining about this problem.
Funny thing is the direct rival of this, the MiA1, also suffered this and partially fixed the problem with a patch last month so finger crossed that this is fixable by patching. Maybe you guys should also flood that forums as well or flood the moto email support.
Added picture to show the wonkiness https://imgur.com/a/HETWp
I know that this thread is dated but I am VERY frustrated with the cell signal on my moto G+. I have had it since 11/17 and have been dealing with VERY POOR cell reception. We are in an area where there is little signal. We installed a cell booster and that gives a small signal on most phones, but my moto G+ is less likely to get or keep a signal. Hubby has Moto ext that is about 3 years old and he always has a better signal then me. I love the phone, but all the bells and whistles mean nothing if you cant gat a signal. Any ideas would be greatly appreciated
Really poor signal.
I also have this problem. Thought it was just me. I can't use it at all inside most buildings, and even outside my g5s+ often looses signal all together.
I have the same problem. I just moved to another city, inside my house (poor signal zone) i am having zero bars. I though it was the zone but a friend of mine has 3 bars, same operator but another phone.
Network problem
When I am install the stock ROM after using custom ROM my mobile network show emergency calls network are not present what I will do my phone is moto g5s plus Indian variant
have you solved? tips?

Unstable LTE/4g Reception

Does anyone notices unstable signal bars on this phone? Same spot, same mobile network, my pixel 2 xl gets full bar while xz2 only hover around 1-3 bars.
This may also contribute to mediocre battery life I've been having. My mix 2s (sd845) certainly fares better in that department.
I can only compare it to Z5 on same location(basement,) which had none or 1 bar signal and no lte/4g, now i have 1-2 bars and lte/4g on xz2
I have the same issue. But it's everywhere. Not just in limited areas. Sometimes, I have LTE+ and next thing you know, it just says LTE with full bars but to internet. It's been doing that all day. might need a new SIM so I'm going to T-Mobile today.
Maybe it is a software related problem.
I had the same problem on LineageOS 14.1 and 15.1 on my Nexus 6, too.
i have the same issue with my xz2, the LTE network is unstable , sometime it goes to 1 bar or no HSPA instead of 4g , is it hardware or software issue ?
I've just tested a z3, xz2 and p8 lite 2017.
At home, weak signal sometimes, p8 has 4 bars, z3 3 bars and xz2 jumping between 1 and 2 bars.
At work, strong signal, p8 4 bars again, z3 jumping between 3 and 4 bars, xz2 2 bars and switching between 4g and 3g a lot.
Really hope they sort this.
Actually, my signal have always been pretty stable, coming from Z3. When I say stable, I mean 3 bars at LTE (4G reception in my location is still not that good, this is the location's fault, tbh). I got 1 to 2 bar(s) at LTE with my Z3.
I have noticed the opposite. My XZ2 has more stable 4G than other phones in my household consisting of iphones and samsungs and its way better than my previous xiaomi.
I get the feeling that the XZ2's signal bar is showing the signal quality rather than the signal strength. For example, when I'm in a congested area I can see that in apps like Cellmapper I have a strong signal to the nearby mast, but the signal quality is poor due to the high number of users and interference.
Overall, it is better to show the quality of the signal rather than the strength. Ultimately it's the quality that has the most impact on data speeds.
I have better reception on LTE/4g on the XZ2 than I do on my Nexus 5X, that sits around 2-3 bars and the XZ2 is constantly on 4 bars...so no complaints here ?
Same problem with my XZ2C
I get 2 bars on average on my XZ2 Compact. But it's very jumpy. When i take it out of my pocket it goes from 1 to 2 bars. No problem with other phones.
Signal Quality Issues here too
Have had my XZ2 for a couple of months and yes, signal issues galore. I commute for work on same highway almost every day and know where I would get some signal issues with my previous samsung phone but with sony its everywhere..even when I'm home its unpredictable. Sometimes I just get a voice message indicator but I did not hear it ring at all. I am aware that not all signal issues are the phones fault..the provider also is not perfect at times but I just cant help to compare it with my previous phones (many brands) and Sony falls short in that area... I was very optimistic being a nice top-tier phone, great pictures and video, the included software is not bad either, great sound from internal speakers including a nice display but fails to deliver on its most primal and basic function...voice calls. Will keep waiting for that much awaited OTA upgrade where Sony tends to this signal issue problem. If not, its off to craiglist.

Sim Signal reception battery drain

Hello.
I have noticed that mi9 has weak antenna or something is going bad. Previously I was using OnePlus 5t and I haven't noticed any significant battery drain from signal reception. Now in battery stats signal takes most of the time 1st place on the list of battery usage.
I was trying to figure out something with *#*#4636#*#* in dialer but I haven't found anything suspicious other than Sim 2 was even though not used seems like it's trying to connect to antennas.
Any time I am in "2 bars" or less on any of the phones I have had I notice significant battery drain from signal.
That said, the Mi 9 seems to have better signal reception than my roommates old iPhone or her new Pixel 3. There are areas with bad LTE coverage and I can often maintain LTE when she cannot, and I typically have higher cell signal strength.
I have week signal reception on 4G compared with my other devices on the same sim and in cases where I am in spots/places with weak 4G coverage it changes to 3G although my other device remain in 4G.
I have tested against some more devices but always MI 9 is weaker.
I can force it to keep the 4G with "LTE only" option but that's not really a solution.
Mi 9 on the right side of the photo

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