Poco X3 - problem with signal strength - Xiaomi Poco X3 NFC Guides, News, & Discussion

Hello all,
I started to have some problems with signal strength.
It's not ROM-related (currently the newest CrDroid).
If I cut my WiFi and set the phone to prefer LTE signal sometimes I'm not able to use data. It's constantly switching between LTE / LTE+.
Sometimes it will connect and it's fine but most of the time it isn't.
It only happens in places when the signal is poor.
If I set the phone to prefer 3G it works perfectly normal.
My gf got the same phone and didn't experience that issue.
I believe that for some time after I received this phone it worked normally.
Maybe it's firmware related issue?
I heard about an issue with the poor signal on this phone...
Thank You in the advance for your answers.

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Data Usage via 3G when WiFi Available

I am running the SGSII on stock 2.3.3 on I9100XXKDJ (Which I think is the latest) and I have noticed over the last few days, that unlike my SGS 1, it seems to transfer data via 3G when I'd expect it to be using the available WiFi.
Anyone else noticed this?
Nope, it works the same as my SGS1 for me. As soon as im connected on wifi the 3G/H icon disappears leaving only the signal strength, and I am on wifi only for data.
What can I use to determine what is using the 3G Data services?
Also how can I see how strong the WiFi Signal is as far as the phone is concerned? Anyone else noticing the WiFi strength on their SGS2 is worse than on the SGS1?
Also interestingly I have both a WiFi and 3G icon on the top bar at the moment!
I don't have a SGS1 but it seems that the WiFi signal strength is not very strong on my SGS2 with KE1. Maybe with a newer firmware it is better.

Eratic Signal Issue - Network mode Switching - Anyone else notice this?

Hey guys and gals,
Posted this on Android forums, so thought i'd see what you guys think too. Tried searching but didn't really find anything.
I have been wondering about my signal on my SGS 2 as it's been up and down like a yo yo, and in some instances I get 0 bars and then it goes up on its own. This is whether im set on 2G or 3G or both, and has been getting on my nerves.
Add to the time without signal being quite high, I thought i'd try and work out the issue.
Well it seems that, if i'm on GSM only for example, the phone will switch randomly between GPRS or EDGE, even though I have network traffic turned off.
Whenever it switches between GPRS and EDGE, my reception goes from whatever bars it was on, down to 0, then back up to full. It does this often, and is annoying lol.
On 3G it does exactly the same, but i'm guessing between UTMS and HSPDA.
I tried searching before coming on and found nothing.
Is it possible this is hammering battery life? And affecting whether I have a signal (time without a signal) and can it be addressed?
Anyway hope this helps anyone with the same annoying issues.
Biff.

Mobile network signal issue

So almost after 3 weeks of getting the TS I decided to put in my AT&T SIM. I was reluctant to use that tiny bastard screw driver but I did it anyways. I have noticed that the network signal strength of my watch is almost non-existant. It will get cellphone signal at only certain place. With the same sim card on my phone (Nexus 5), I get good cell reception.
How are others doing in this department? How's the cellphone signal? Is there anything I can do to improve the mobile network signal. Currently I am on stock with Loki's security patch.
I am not sure if this is a hardware issue or software issue. I remember someone opening the TS and checking the antenna. Any suggestions would be highly appreciated.
Some information on my TS -
North American 1/8
Stock ROM with Loki's patch.
Ok here is my observation:
I could not get signal inside my office, home and costco
I did get signal once I get out of my office - full signal bars with H+. I made a short trip from office to costco and home and back to office. It was able to get signals when I was driving but in some areas where I used to get 2-3 bars in my phone, TS did not pick at any signal at all. So mobile network signal is working but it is pretty weak compared to my phone.
May be it needs some tune up 
i have the same problem,the signal is low and TS really has a hard time to find one,if its lost
can we do something about this ?
I opened mine just to have a look and found one of the connectors lose, took a bit of fiddling to get it back on but my network signal seems as good as my note3.
I don't know why, but after installing this app.https://play.google.com/store/apps/details?id=com.misonicon.signalbooster3g4g
The signal works perfectly, I didn't believe in this apps but now I don't know what to say
At least it works
Mobile frequency fluctuates on my end too, made sure APN settings are listed exactly like they say here on the forums, maybe I should change to another GSM 3G SIM card?

3G not connecting

I recently purchased an Xiaomi Redmi Note 3 Pro phone (kenzo), it covers all the bands that rogers uses in my area in Canada, I believe.
https://en.wikipedia.org/wiki/Rogers_Wireless
I can connect with the phone on LTE, HSPA+ with no problem, if available. Sometimes, if I am in certain area's, the signal indicator drops to 3G .... it shows a decent signal, but no calls or data can go through.
In this example on the following chart, the first WCDMA connection,my phone only indicates 3G and I can not make a call or use data. When my call attempt is done, it goes back to LTE. Then I try again. Then for the second WCDMA connection on the chart, I am connected as H+, I can make a call and use data. Whenever this phone connects to CID 31072 the problem happens. When I connect to CID 31075, no problem. These are just examples of towers that I reach from my home. I get the same problem occuring other areas.
Any suggestions on what I need to change on my phone? Is my phone making a kind of 3G connection for some reason, which Rogers doesn't support? I have tried everything I can think of, Miui dev versions, CM13, LineageOS 14.1 etc, change Android Radio Menu settings, etc.
Nothing seems to fix this issue.
Any advice would be greatly appreciated!
I have been using Network Signal Guru, and have figured out that the phone will connect calls data on 3g if the band it finds is B5-850M .... if the tower tries to connect to is B2-PCS-1900 the call fails.
I tried to block the use of band 2 with Network Signal Guru, but it seems to still use it when it finds it.
I have since flashed a LineageOS rom and used the Network Signal Guru to disable band 2 WCDMA. The phone has not been experiencing the issue at all since. I am cautiously optimistic that I have found a solution. Still not sure why this band doesn't work here though.

Phone (Asus max pro m2) no voice/data connection(airtel) in particular location

Hi,
I have Asus zenfone max pro m2 phone with airtel sim. At my home, I get almost zero connectivity (both voice and data), all the time. It works perfectly fine in other places, but, I think it might not still be the best though, I do see some minor drops in connectivity every now and then, in other places too.
I placed the sim in another phone(redmi note 4g) at my home. It gets good voice and data connectivity (4g with decent speed). So I think the problem might not be with the sim. It should either be with the phone or something to do with airtel's cell towers.
I have attached the screenshots of phone information in both the cases (my phone with no connection and redmi note 4g which has good connection)
I think the reason might be either the phone has a bad radio/modem hardware or software. Or there might be problems with connecting to some cell towers. I think there are more than one cell tower nearby and somehow my phone is ending up not being connected to either(something to do with cell tower handoff!?). I sometimes see the phone getting connected to 4g/edge, but quickly drops. I do have JIO sim and it works fine. I have tried several things, both basic(switching sim cards, placing only one sim card, reset network, reboot etc etc.) and advanced(trying out different roms, locking bands with network signal guru), but no luck, anyone facing similar problem or has any solution? If its some kinda software problem, I can try flashing some software(kernel/modem?), I have my phone rooted.
Thanks in advance

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