My phone constantly drops calls on Vodafone (UK).
I got so fed up I put the latest stable Cyanogen ROM on it but the issue still occurs
I have also noticed that my status bar only displays the "G" rather than "3G" with the latest cyanogen even though I am getting 3G speeds. If I switch the phone to 2G only and back again then displays correctly.
Can you test on other phone signal strenght? Maybe it's weak.
If signal is good try some of sense roms.
For example
http://forum.xda-developers.com/showpost.php?p=12384604&postcount=12328
I had never drop calls on these roms.
Phone signal if full - it makes some sort of funny sound when it cuts off then hangs for a second or two.
I had the stock ROM which is sense and it happened a lot of the time.
How would a sense ROM help?
Hello,
I've tried some AOSP(maybe spelt it wrong) ROMs, and some sense ROMs, and in some I had a very, very bad WiFi signal issue. Currently I'm testing one out and it's always ar 1 dot or 2 max for 3 seconds, and then it disconnects, reconnects again. I'm barely 7m away from my router, maybe even less. I'm not sure how the signal was when I used Stock ROM, but I think I had 3-4dots all the time, now I'm loosing the connection a lot. I was searching for a good fast ROM(idc about sense really with this phone), but that issue is killing me really.
What would be the issue? A radio, kernel, ROM problem? Any tips?
So we're still seeing inconsistent signal reporting on LTE within AOSP ROMS.
The bottom line (as of today) is that the devs believe that the bars (in AOSP) display a more accurate representation of signal than the bars on every other stock ROM on every phone from every manufacturer. Let's say, for the sake of avoiding a heated discussion, that I completely agree with the devs and their observation of this phenomenon. Is there anyone out there that can give me instructions to increase the number of bars that are displayed? It seems that AOSP and stock are only off by about 1-2 bars. If someone would be kind enough to instruct me in adding a value to the build.prop or something similar, I'd be happy as a clam. I would really like to see the signal bars in AOSP displayed as they are in a stock ROM. Is there even a way to do this?
Thank you!
Getting constantly low signal, my dbm is always around - 100, 8 asu, I am on fulmics, do i have to reflash some modem, or is there else I can do, thanks.
Hi, I have a brand new Poco F3 6GB/128GB running on MIUI 12.5.6.0 Global Stable, and sometimes wifi and/or mobile data drop randomly.
I was just walking home about 30 minutes ago while playing Clash Royale on mobile data, had full signal bar and was on 4G+, then suddenly it lost internet access, 4G+ symbol disappeared, but the full bar of signal still remained for a few seconds before going out of signal, and then suddenly I have full signal bar and 4G+ again. Loss of connectivity lasted for about 15 to 20 seconds.
This happened in a place where I always had 100% coverage, full bar of signal and 4G+ on any phone.
I am using only SIM1, the second slot is not being used.
It has also happened twice on wifi, and on both occasions I was also playing Clash Royale while laying on my bed, then suddenly wifi drops and takes about 5 to 10 seconds to reconnect. I usually get 'Good' signal strength in bed, sometimes at 260Mbps and sometimes at 585Mbps, every other phone I had could maintain a wifi connection to my AP from bed.
Is anyone else having random connectivity drops?
It can be related to: https://forum.xda-developers.com/t/random-reboots-while-using-lte-in-aosp-roms.4330991/
and: https://xiaomi.eu/community/threads/poco-f3-12-5-6-loses-gps-signal.62828/
(Same issues)
and unfortunately no fix from xiaomi..
I will be able to unlock the bootloader in about 24 hours, if the .eu ROM does not fix this issue I will return the phone on Monday.
wall_ said:
I will be able to unlock the bootloader in about 24 hours, if the .eu ROM does not fix this issue I will return the phone on Monday.
Click to expand...
Click to collapse
In which region are you if I may ask?
nahsha said:
In which region are you if I may ask?
Click to expand...
Click to collapse
Portugal
wall_ said:
Portugal
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Click to collapse
I have a bug ticket submitted to Xiaomi, it's just a matter of time (hopefully) till they provide the modem crash fix! Can you force your mobile to 3g, and see if you can reproduce? I bet you can't..just to confirm that we're having the same issue.
nahsha said:
It can be related to: https://forum.xda-developers.com/t/random-reboots-while-using-lte-in-aosp-roms.4330991/
and: https://xiaomi.eu/community/threads/poco-f3-12-5-6-loses-gps-signal.62828/
(Same issues)
and unfortunately no fix from xiaomi..
Click to expand...
Click to collapse
Haha I'm currently very curious whether Xiaomi did such "kernel hack" as well, which just resets the modem rather than forcing the whole system to reboot.
I'm currently on LineageOS with custom kernel, which implements such "kernel hack". To me at least random connection loss is much less bad than random sudden system reboots.
wall_ said:
Hi, I have a brand new Poco F3 6GB/128GB running on MIUI 12.5.6.0 Global Stable, and sometimes wifi and/or mobile data drop randomly.
I was just walking home about 30 minutes ago while playing Clash Royale on mobile data, had full signal bar and was on 4G+, then suddenly it lost internet access, 4G+ symbol disappeared, but the full bar of signal still remained for a few seconds before going out of signal, and then suddenly I have full signal bar and 4G+ again. Loss of connectivity lasted for about 15 to 20 seconds.
This happened in a place where I always had 100% coverage, full bar of signal and 4G+ on any phone.
I am using only SIM1, the second slot is not being used.
It has also happened twice on wifi, and on both occasions I was also playing Clash Royale while laying on my bed, then suddenly wifi drops and takes about 5 to 10 seconds to reconnect. I usually get 'Good' signal strength in bed, sometimes at 260Mbps and sometimes at 585Mbps, every other phone I had could maintain a wifi connection to my AP from bed.
Is anyone else having random connectivity drops?
Click to expand...
Click to collapse
I'm curious what your dmesg will look like, although I'm not a dev myself.
nahsha said:
It can be related to: https://forum.xda-developers.com/t/random-reboots-while-using-lte-in-aosp-roms.4330991/
and: https://xiaomi.eu/community/threads/poco-f3-12-5-6-loses-gps-signal.62828/
(Same issues)
and unfortunately no fix from xiaomi..
Click to expand...
Click to collapse
Although I'm also a victim of random modem crashes (and initially it's not only modem crashing, it's the whole system was forced to reboot, until I found the "kernel hack"), honestly I'm not sure whether all these "random signal drop" "random reboots" issues share one common root cause at all. I have no idea it's a software issue (no matter it's kernel driver, firmware, or even some userspace stuff) or a hardware one either.
Besides, wifi and cellular belong to different subsystems, if I'm not mistaken? To be honest I haven't noticed system reboot triggerred by reasons other than "esoc0" (which should be cellular, not wifi?) myself.
I'm using Poco F3 on T-Mobile here in the valley in Southern California. I manually enabled VoLTE and Wi-Fi calling. I have my SIM card in slot 1. I'm on MIUI Global 13.0.2 Stable. Everything is working great, but when I drive to certain low signal areas, the phone switches to 4G and will not switch back to showing VoLTE 5G in the status bar even when I'm back to a great signal area. I have to use airplane mode, or toggle VoLTE setting off and back on to get it to switch back to 5G with VoLTE working again. Any idea if there's a way to permanently fix this issue? I don't know why it switches to 4G and never switches back! Is this possibly related to the modem crashing bug discussed on this thread? I love the phone but this bug is very irritating!
Hello. Im having the same issue. Were you able to fix the issue?