Database Info

LTE signal indicator issues

I've realised that the signal strength in Phone Status (in dBm) does not seem to work correctly when on LTE. Very often, it'll show that my signal is -113 dBm, which is an extremely weak signal, while showing 2 or 3 signal bars. Something is obviously wrong as 3 out of 4 bars should NEVER be as weak a signal as -113 dBm. Is anyone else experiencing this?
G920F (bought from Germany) on 3 UK.

Japultra said:
I've realised that the signal strength in Phone Status (in dBm) does not seem to work correctly when on LTE. Very often, it'll show that my signal is -113 dBm, which is an extremely weak signal, while showing 2 or 3 signal bars. Something is obviously wrong as 3 out of 4 bars should NEVER be as weak a signal as -113 dBm. Is anyone else experiencing this?
G920F (bought from Germany) on 3 UK.
Click to expand...
Click to collapse
LTE dBm are calculated differently. 113 is good around 140 is bad.

SmiLey497 said:
LTE dBm work different. 113 is good around 140 is bad.
Click to expand...
Click to collapse
I've read that signal drops off at -120, so -113 is pretty close to the edge, but either way, that signal indicator is wrong. If I go into the service menu (*#0011#) the RSRP (dBm) it shows fluctuates from -91 to -98, which seems to be the more appropriate dBm for 3 bars of signal. The dBm in my phone status still stays static at -113 (it doesn't fluctuate at all)

As per your request in the other topic here are my findings.
I live in Amsterdam and I work in the harbour area (a lot of open spaces). I work next to a 4 x 3 meter window. With every device I've owned I would get full reception. Though under settings > device > status it would always say -113. My reception bar is always near empty.
When I go outside, even in the middle of a park in the middle of the city with nobody around, I will still get the same result. In my apartmentbuilding, on the 7th floor outside on my balcony, same result.
I'm currently in the office so I thought I'd send a screenshot of what the *#0011# screen looks like.
(Apologies for the big image)
In my parking garage I would even get reception with my OnePlus One, which isn't really great when it comes to reception. It would be only a sliver, but at least I would get something. The S6 doesn't get anything. When I leave the bigger urban area I'm immediately knocked off 4G and 3G and I'm pretty much left to calling and texting. The Netherlands isn't really like the outback of Australia, I had expected better
I can live with not having reception in my parking garage, but I'm more concerned with the fact that I've never seen more reception than you can see in that screenshot and that I have close to no reception when I go out of town. I'm using T-Mobile which I know only uses the higher frequencies. In the Netherlands they use 900 MHz, 1800, 2600 MHz. I don't know if that comes into play much. I had a bit better reception when I was still at Vodafone, but that was a few years back. With a top of the line device like the S6 I had expected better. Much better.
Maybe I should have the device swapped?

Thijsvr said:
As per your request in the other topic here are my findings.
I live in Amsterdam and I work in the harbour area (a lot of open spaces). I work next to a 4 x 3 meter window. With every device I've owned I would get full reception. Though under settings > device > status it would always say -113. My reception bar is always near empty.
When I go outside, even in the middle of a park in the middle of the city with nobody around, I will still get the same result. In my apartmentbuilding, on the 7th floor outside on my balcony, same result.
I'm currently in the office so I thought I'd send a screenshot of what the *#0011# screen looks like.
(Apologies for the big image)
In my parking garage I would even get reception with my OnePlus One, which isn't really great when it comes to reception. It would be only a sliver, but at least I would get something. The S6 doesn't get anything. When I leave the bigger urban area I'm immediately knocked off 4G and 3G and I'm pretty much left to calling and texting. The Netherlands isn't really like the outback of Australia, I had expected better
I can live with not having reception in my parking garage, but I'm more concerned with the fact that I've never seen more reception than you can see in that screenshot and that I have close to no reception when I go out of town. I'm using T-Mobile which I know only uses the higher frequencies. In the Netherlands they use 900 MHz, 1800, 2600 MHz. I don't know if that comes into play much. I had a bit better reception when I was still at Vodafone, but that was a few years back. With a top of the line device like the S6 I had expected better. Much better.
Maybe I should have the device swapped?
Click to expand...
Click to collapse
I see that your RSRP is the same as what it states in the phone status menu. Does this number ever change? For me, I (mostly) always see -113 (such as right now in my office) but my RSRP actually fluctuates. Screenshot of my RSRP attached.

Japultra said:
I see that your RSRP is the same as what it states in the phone status menu. Does this number ever change? For me, I (mostly) always see -113 (such as right now in my office) but my RSRP actually fluctuates. Screenshot of my RSRP attached.
Click to expand...
Click to collapse
In my phone status window I've never seen it change. In the RSRP it does vary a little bit, from -115 to -110.
I actually just got it working properly for the first time. I went to the rooftop of my office, as far away from anything that could interfere and I got -77. Bars actually went up too which I haven't seen before. So I guess the device really does just have poor reception. Strange that not more people are reporting on this though.
Edit. These guys are also reporting on low signal stuff: http://www.theregister.co.uk/2015/04/08/samsung_galaxy_s6/

Thijsvr said:
In my phone status window I've never seen it change. In the RSRP it does vary a little bit, from -115 to -110.
I actually just got it working properly for the first time. I went to the rooftop of my office, as far away from anything that could interfere and I got -77. Bars actually went up too which I haven't seen before. So I guess the device really does just have poor reception. Strange that not more people are reporting on this though.
Edit. These guys are also reporting on low signal stuff: http://www.theregister.co.uk/2015/04/08/samsung_galaxy_s6/
Click to expand...
Click to collapse
Unfortunately, I've noticed the same thing, though not nearly as bad as what The Register is experiencing. For me, it is only slightly worse than my G3.

Japultra said:
Unfortunately, I've noticed the same thing, though not nearly as bad as what The Register is experiencing. For me, it is only slightly worse than my G3.
Click to expand...
Click to collapse
The review sounds pretty accurate to me, but others are reporting their device has connectivity as good as HTC's M9. Luckily I've got an M9 lying around, so I'll put my sim in that and see if it too gives me poor reception.
---------- Post added at 02:49 PM ---------- Previous post was at 02:36 PM ----------
Haha, I guess I have to blame T-Mobile and not Samsung. The M9 I have gets -112 dBm at the same location where the S6 has -113 dBm. Seems the problem is with the network and not with the device. Not sure yet if that's good news or not

Thijsvr said:
The review sounds pretty accurate to me, but others are reporting their device has connectivity as good as HTC's M9. Luckily I've got an M9 lying around, so I'll put my sim in that and see if it too gives me poor reception.
---------- Post added at 02:49 PM ---------- Previous post was at 02:36 PM ----------
Haha, I guess I have to blame T-Mobile and not Samsung. The M9 I have gets -112 dBm at the same location where the S6 has -113 dBm. Seems the problem is with the network and not with the device. Not sure yet if that's good news or not
Click to expand...
Click to collapse
Well, it's good that you know it's not your S6! I was actually walking along a street where I got horrible reception with the G3 (after I posted the last comment) and realised I was actually holding onto a signal when the G3 would lose signal completely. Guess it's not as bad as I thought!

Japultra said:
Well, it's good that you know it's not your S6! I was actually walking along a street where I got horrible reception with the G3 (after I posted the last comment) and realised I was actually holding onto a signal when the G3 would lose signal completely. Guess it's not as bad as I thought!
Click to expand...
Click to collapse
We're just too critical Glad we got it solved, haha. Back to fully enjoying the device!

I have this issue also.
I had a nexus 5 before on EE and pretty much always had 3-4 bars if not full signal. On the GS6 still with EE i rarely see it go above 1 bar.
I am still within my 14 day return time but i am stuck now with what to do. Do i risk waiting to see if this is fixed with a software update or return it. If i wait and its not fixed them im stuck with a phone that gets very little signal. If i return it i have no idea what else i would get as i love this phone. I have also tried another GS6 in store but same issue so makes me wonder is this a software or hardware issue. Seems several people on varying networks have this issue.

I have the same experience. -113 dBm at home inside our house.
1 max 2 bars on the signal indicator. Lots of places where I had 4-5 bars on my One M8 I now have these -113 dBm on S6 4G, or only 3G connection (-79 dBm - 4 bars, the max on S6). Sitting here with my SIM card placed in my M8 I get -98 dBm 39 asu inside our house. Thats 4 out of 5 bars on the HTC indicator. It's the same with other 4G handsets we have in the house. I have a cheap company Nokia 4G phone that also have 4 bars inside the house. I've had a Z3 compact that also had great reception on 4G. I think I have data enough to conclude:
Conclusion: S6 have bad LTE/4G reception. Very very sorry about this. This is a real stepdown from what I otherwise think of the S6 handset. Other than that, I don't know wether this can be made better by software, but I doubt it..
EDIT: Just tried by wifes Samsung A5, which sees -97 dBm on my SIM card.

Different carrier roms seem to deal with the signal differently, but essentially it's a cosmetic issue. I'm using the Three UK (H3G) rom and my signal bars work fine but my dBm signal level in settings is always stuck at -113dBm.
I took these 2 screenshots at the same time standing in a great 4G signal area:
http://i.imgur.com/n6eUmaS.png
http://i.imgur.com/v5KsmgH.png
As you can see, the settings shows -113dBm but the service menu (*#0011# in dialer) shows -84dBm.

Maybe this thread is really about that - the signal interpretation internally. But nevertheless my S6 handset is 'downscaling' to 3G all the time (and staying there), hente twice the roundtrip and less bandwidth for me.

duckstardeluxe said:
Maybe this thread is really about that - the signal interpretation internally. But nevertheless my S6 handset is 'downscaling' to 3G all the time (and staying there), hente twice the roundtrip and less bandwidth for me.
Click to expand...
Click to collapse
It sounds like you have a different issue. Have you tried checking what your signal is in the service menu using *#0011#?

I'm getting an error dialing the service menu (OSSD code) stating N/A.

duckstardeluxe said:
I'm getting an error dialing the service menu (OSSD code) stating N/A.
Click to expand...
Click to collapse
Are you typing it in exactly like this: *#0011# ?

Here in Italy very bad signal with TIM also with 3g. Where my Iphone and Note 4 get full signal only 2 bars on my GS6. What the hell Samsung always release buggy phone!!!

I forgot to mention that I was running the Lite version of the stock rom found here on XDA. The service code don't work on that rom, which made me downgrade to my backup of the stock rom.
I'm getting RSRP:-98 RSRQ:-6 RSSI:-71

duckstardeluxe said:
I forgot to mention that I was running the Lite version of the stock rom found here on XDA. The service code don't work on that rom, which made me downgrade to my backup of the stock rom.
I'm getting RSRP:-98 RSRQ:-6 RSSI:-71
Click to expand...
Click to collapse
That matches your M8.

Fake signal bars (too high)

Hi!
Did anyone notice that the phone will display at least 2 signal bars at all times, even when the signal is so weak that calling and browsing is not possible?
The attached screenshot was made in an elevator: the phone displays 3 bars but the app shows the real measurement (0 bars).

Other apps might show something different.
Maybe OP thinks 125dba is good signal and they set the ui to 3 bars. While the app developers don't think it's good... My point being if I make an app, I could set it to 250dba being 0 bars :s
P. S also no, I don't share the same issue as you. if I go down to 1 or 2 bars I can still surf and make calls.

Oneplus 3T & 6 owner here - yep, did notice it as well.
These devices do not shine for signal reception, in my opinion.

Yeah. Sometimes my phone shows 2 signal bars in my basement, but no calls can actually be made.
Any other phone shows "no signal" sign in here.

Problem known since 3T I think. Custom roms on 3T shows correct amount of bars, where OOS shows 2-3 bars more.
On 6 i have OOS at the moment and I can't browse Internet when I have ~2 bars.
OnePlus 6 @ Tapatalk

Maybe OnePlus is yet another victim of antenna gate-related bad publicity, and they want to pump up the signal reading...

thenext1 said:
Maybe OnePlus is yet another victim of antenna gate-related bad publicity, and they want to pump up the signal reading...
Click to expand...
Click to collapse
I always have a signal reading app in my status bar. This allows me to accurately measure signal performance.
They have some build.prop added in to *enable signal cheating*, maybe remove that line and see if it changes anything.

Ascertion said:
I always have a signal reading app in my status bar. This allows me to accurately measure signal performance.
They have some build.prop added in to *enable signal cheating*, maybe remove that line and see if it changes anything.
Click to expand...
Click to collapse
LOL, is that the build.prop from stock OP6?
How did they get that far?
I am not rooted, and don't want to get root, so no dice for me, right?

Cellular strength and throughput

We know how much you like to stream, ahem, "videos", and so cellular data is mega-important. Rate this thread to express how you think the Samsung Galaxy S10e's LTE performs. A higher rating indicates that it's fantastic: throughput is excellent and signal strength is top-notch.
Then, drop a comment if you have anything to add.

I don't go by the bars I go by the dBm's. The way this phone reads dBm's you pretty much show no bars after 117 dBm's. All other phones I've had showed 1 bar at 117. -97 dBm right now but still only have 3 bars. Should have full signal. -97 is pretty good. Anyways, I have an app that shows dBm's in the notification shade and that's what I go by. More importantly is the fact that my unlocked 6t has Volte with TMobile and my S10e doesn't. Sucks.

westside80 said:
I don't go by the bars I go by the dBm's. The way this phone reads dBm's you pretty much show no bars after 117 dBm's. All other phones I've had showed 1 bar at 117. -97 dBm right now but still only have 3 bars. Should have full signal. -97 is pretty good. Anyways, I have an app that shows dBm's in the notification shade and that's what I go by. More importantly is the fact that my unlocked 6t has Volte with TMobile and my S10e doesn't. Sucks.
Click to expand...
Click to collapse
What app do you use to show the dBm's in the notification shade?

KARVEGA79 said:
What app do you use to show the dBm's in the notification shade?
Click to expand...
Click to collapse
Signal Notification

The 4G signal is way less good than with my ex Huawei P20. And when it goes from bad reception area to a good reception area, it takes a lot of time to catch the actual signal, sometimes I even need to put on plane mode and then put it off.

Long time to capture signal
Sirguda said:
The 4G signal is way less good than with my ex Huawei P20. And when it goes from bad reception area to a good reception area, it takes a lot of time to catch the actual signal, sometimes I even need to put on plane mode and then put it off.
Click to expand...
Click to collapse
This. Takes a long time (minutes) to capture a signal from one area to another.

Anyone has experience with dual sim use in this phone ?
I barely get connection on the second sim and feels like the first sim has even worse reception when a second sim is inserted.
I got this phone like 2 weeks and very disappointed for cellular strength. As mentioned above, often i have to put on airplane mode to get connected to the internet.

This phone has serious problems with reception. It never really bothered me, I got this phone since launch, (exynos variant, dual sim) but now that I don't have broadband until my new provider sets up their network in the house, I have to rely on my mobile data, and it's amazingly bad. I have 2 sims in the phone, but it doesn't make any difference if I remove one or other. I'm in the UK, it could be Vodafone's fault, however I tried my sim in my previous phone (honor 8) and the signal was better (in dBm ofc) and I also tried my gf's sim in my phone and the signal was worse in my phone. I've spent days searching for solution and it turns out Samsung might went cheap on antennas so there isn't much to do. I've tried some 3rd party apps, tried to force only 4g, also tried 3g, reset network settings, reset access point etc; no luck. I'll transfer my number to an other provider and hope that it will help a little bit but to be fair, I don't think it'll help.

Poor signal strength

Just received my Xperia 5 II. I'm enjoying it so far but unfortunately one of the most basic requirements is letting it down, 4G signal strength. I'm on Vodafone and using the SIM in my Mate20 Pro I can gain full bars. However using the same SIM in this phone I barely get one bar with the status showing around 105 - 115 dBm. Out of curiousity I switched to GSM using the test menu and it dropped to 85 dBm. Anyone experiencing similar?
Thanks.

Bugsy46 said:
Just received my Xperia 5 II. I'm enjoying it so far but unfortunately one of the most basic requirements is letting it down, 4G signal strength. I'm on Vodafone and using the SIM in my Mate20 Pro I can gain full bars. However using the same SIM in this phone I barely get one bar with the status showing around 105 - 115 dBm. Out of curiousity I switched to GSM using the test menu and it dropped to 85 dBm. Anyone experiencing similar?
Thanks.
Click to expand...
Click to collapse
Hi!! I have the terminal for about 1 week. I have the same problem. I have Vodafone Spain. I think it is a software problem because I have compared with a Realme x2Pro and the indicator is very good, the values ​​are similar in Xperia. So I think it is an OS problem. Without any coverage bars, the phone makes calls without problems. They are not cut or similar.

That's good to hear thanks! Hopefully Sony can be made aware of this and provide a software update! As I type this it's sat between 0 and 1 bar

Do you have Vodafone ROM? Flashing an original Sony ROM may fix the problem. Can be?

It's pretty much out of the box and updated to the latest software. Interestingly my H+ speed is twice as fast as my 4G speed!

I've just logged in to create a thread about this problem, and I see that I'm not the only one experiencing it. It's really frustrating, my previous device (essential) in the same spot with the same sim card, can achieve 3(!) times faster download speed
Sent from my XQ-AS52 using Tapatalk

Same problem here with wifi and 3g (h).
Waiting fix for this issue..

I want to think that it is a software problem. Seeing that there are many people with the same problem, I do not think that all the devices are bad.

Unless the issue is due to hardware by design. They might've opted for a cheaper antenna system that doesn't get enough signal. In that case we're screwed.

I read quite a few posts regarding the X1ii having the same issue, that doesn't give me much hope! Thankfully I'm in the 14 day return period so I will keep an eye on this thread and also the signal when I'm in the car etc.

I am experiencing the exact same issues on 4G LTE here in canada. And I don't understand what's going on because apart from my home going outside and using data exclusively I'm getting full speeds 4G plus no problem. However certain times of the day primarily during the evening I do have hiccups where I have dropped connection and it takes a while for the phone to just do its thing and then get to have the internet back. With regard to the low signal yeah I'm getting full service my phone calls are working properly text messages are sending but I'm only getting one to two or even zero bars on 4G LTE.
This is all on my brand new Sony Xperia 5 mark ii. I'm hoping the update to Android 11 or a couple of security patches down the line or lifespan of this device will fix this issue. But I'm going to try not to concern myself with it as of yet because again the one place I thought I wouldn't be able to get anything which is my use of the phone outside in public I was able to get full if not better service than anything I did at home. And at home it's not that bad either it's just one point in time the signal will cut off and drop.

thepersona said:
I am experiencing the exact same issues on 4G LTE here in canada. And I don't understand what's going on because apart from my home going outside and using data exclusively I'm getting full speeds 4G plus no problem. However certain times of the day primarily during the evening I do have hiccups where I have dropped connection and it takes a while for the phone to just do its thing and then get to have the internet back. With regard to the low signal yeah I'm getting full service my phone calls are working properly text messages are sending but I'm only getting one to two or even zero bars on 4G LTE.
This is all on my brand new Sony Xperia 5 mark ii. I'm hoping the update to Android 11 or a couple of security patches down the line or lifespan of this device will fix this issue. But I'm going to try not to concern myself with it as of yet because again the one place I thought I wouldn't be able to get anything which is my use of the phone outside in public I was able to get full if not better service than anything I did at home. And at home it's not that bad either it's just one point in time the signal will cut off and drop.
Click to expand...
Click to collapse
You have said it. He receives calls correctly and works perfectly. So I think it is a software bug. It does not mark the coverage well. The values ​​are similar on other devices. At least in my case.

The speeds I tested personally have huge differences, so at least for me, there is a significant difference
Sent from my XQ-AS52 using Tapatalk

Befree197 said:
You have said it. He receives calls correctly and works perfectly. So I think it is a software bug. It does not mark the coverage well. The values ​​are similar on other devices. At least in my case.
Click to expand...
Click to collapse
I am really hoping that it's a software bug and nothing more. Hopefully it will get addressed. it was interesting going into my local Telus having neither of the representatives in store know what VOLTE was. I was baffled I figured people that work there would have an idea of the services involved or bundled with what they're offering LOL but I think I'm better off dealing with tech support hahaha

I was browsing the XP 5 M2 forums here with the intend to import this phone to India as it seemed an excellent buy. Now after seeing the poor signal issue, I have my concerns. However, you can try doing the following and report back
1. Check "mobile network standby" usage under the battery settings. If the signal actually is too low, this value should be in high percentages -maybe above 10% of the overall battery consumption.
2. Download and install GSAM/BBS battery monitor app and check the standby drain per hour on 4G/LTE, keeping the phone idle overnight or not use it for an hour during day time. Ideally it should be less than 1-1.5%/hr during the day on idle and overnight should be less than 1.0%/hr on LTE. If this is the case, its only the signal bars and a software issue. Avoid measuring on WIFI as the drain is usually much less on wifi anyways.
3. Download and install 'Network Cell Info" (https://play.google.com/store/apps/details?id=com.wilysis.cellinfolite) and check the actual strength with different phones at the same spot and same time. Cellphones do switch towers frequently even at the same spot. This app will give detailed info on the signal strength and towers (if your telco provides). It will also show where the towers are located approximately and you can compare phones on how they stack up in a similar setting.
4. Force 4g/LTE mode only under network preferences (if available). Check the dBm and ASU levels in this mode and see if it's any different from 5G/4G mode.
If the standby drain is low and the phone lasts a day or more on normal usage, then no need of worry, its the signal bars that are showing wrong. I'd like to hear back from you all as my purchase decision will be based on your feedback on standby drain.

Ah, finally the same issues as I am experiencing. I also have only one or sometimes zero bars. The people I call also tell me connection is bad. Sounds drop, we can't talk simultaneously and so on. Sometimes I can't even internet with wifi. I also hear people on the phone that sounds drop.
I don't feel comfortable about all the suggestions to enable or disable stuff in the default settings, set preferred network to only 4g or disables 5g;
1- I tried this but doesn't make a difference
2- This should work out of the box. I have several phones (samsung, Iphone, Oneplus) and none of these have these problems.
Sometimes I do have full bars, and the internet is very good. I noticed this yesterday. And once on the other side told me the quality was allright, but almost all the time the strength is zero to one bar and quality is really bad.
I also tried a new simcard, no difference. Vodafone also sent it to repaird and I got a complete boardswap, but no difference.

linom said:
I was browsing the XP 5 M2 forums here with the intend to import this phone to India as it seemed an excellent buy. Now after seeing the poor signal issue, I have my concerns. However, you can try doing the following and report back
1. Check "mobile network standby" usage under the battery settings. If the signal actually is too low, this value should be in high percentages -maybe above 10% of the overall battery consumption.
2. Download and install GSAM/BBS battery monitor app and check the standby drain per hour on 4G/LTE, keeping the phone idle overnight or not use it for an hour during day time. Ideally it should be less than 1-1.5%/hr during the day on idle and overnight should be less than 1.0%/hr on LTE. If this is the case, its only the signal bars and a software issue. Avoid measuring on WIFI as the drain is usually much less on wifi anyways.
3. Download and install 'Network Cell Info" (https://play.google.com/store/apps/details?id=com.wilysis.cellinfolite) and check the actual strength with different phones at the same spot and same time. Cellphones do switch towers frequently even at the same spot. This app will give detailed info on the signal strength and towers (if your telco provides). It will also show where the towers are located approximately and you can compare phones on how they stack up in a similar setting.
4. Force 4g/LTE mode only under network preferences (if available). Check the dBm and ASU levels in this mode and see if it's any different from 5G/4G mode.
If the standby drain is low and the phone lasts a day or more on normal usage, then no need of worry, its the signal bars that are showing wrong. I'd like to hear back from you all as my purchase decision will be based on your feedback on standby drain.
Click to expand...
Click to collapse
Here are some stats
https://i.ibb.co/2SwYRRg/mobile-network-standby.png
https://i.ibb.co/5jmytx3/standby-drain.png
https://i.ibb.co/WpztLJN/signal-strength.png
https://i.ibb.co/hdDg6nL/network-cell-info-xperia.png
https://i.ibb.co/RSQwn3Z/network-cell-info-pocophone.jpg

It's really disappointing for a phone that costs around 900 euros to suck at the most important task that it has to do. Yesterday I was sitting with a friend of mine that has an OnePlus 6T. He had full bars and I was between 1 and 2 bars. I haven't seen full bars ANYWHERE. I don't know what is wrong, I hope it's a software bug or something, but I'm not optimistic about that
Sent from my XQ-AS52 using Tapatalk

to compare signal quality you have to download netmonster, bars are not good to make a comparison, however compared to my old mate 20 pro the signal quality is good despite sometimes i have 1 bar if you open netmonster you can see good value, no complain at all , btw i live in Rome.

But I experience also bad quality. WiFi and cellular. My Samsung, iPhone and OnePlus didn't have problems with my WiFi also it's was weak upstairs, but my Sony has sometimes no WiFi at all.
And when calling, not over WiFi, sounds is bad, is dropping a lot.
Looks like Sony can't handle a weak signal as good as other phones?

Sony Xperia 5 mark ii Docomo. SO-52A

Guys,
I bought an Sony Xperia 5 mark ii Docomo (SO-52A) from a near by shop..it's showing less network signal (no of range bar) compared to other Indian smartphones..does flashing a global rom resolve this problem?.or any other solution for this?

There are many discussions about the way Sony phones show the signal strength at the top bar, which is much more sensitive than other phones. This means that the icon bars change a lot (maybe too much?).
But the reality is that the signal is strong just like in other phones and you are good.
So the question is: Do you **really ** have signal loss ?

Bro sometimes it shoes even no signal..while others are geting 1-2 range bars

Yes, but the question is if you really cannot make reliable calls or use data in a speedy manner.
As I mentioned, many users saw the icon signal strength fluctuation but with no impact at all in reality.
I'm not saying it should be that way, but it **may** be a false problem.
I can't share a similar experience because I have an European 5 II and I live on that region.
No problems with signal reliability at all.