Unable to change network in cm13 - Mi 3 Q&A, Help & Troubleshooting

I was on miui7 before switching over to Marshmallow CM13 . but now i am unable to switching between networks . It shows - LTE( recommended) but when i try to switch to 2g only or 3g only nothing happens . all i can observe is slight flicker and still its LTE (recommended)
I even tried *#*#4636#*#* method but only change i can make is to set it to unknown . nothing else gets selected .
I ven updated my rom thinking it might be release problem but problem still persists .
Current version - cm 13 - 20160107- nightly

Related

KA: Dev. CM7 / MIUI Airplane bug ...

Dear Devs,
I was facing a problem related to Airplane Bug on Miui/CM7 roms, so i googled related to this but couldnot find anything of help. So thought of asking for your help..
1) Whenever i flash a stock or custom froyo/eclair/GB rom, it detects my network which is BSNL india without any problem
2) But when i flash any CM7 or ICS rom, my phone doesnot come out of Airplane mode at all..
3) So, i tried everything, but of no use.. IMEI is good ... nothing is corrupted
4) Yesterday, when i changed SIM card to other operators present in india, the airplane bug is gone
5) so i feel that problem is either with BSNL operator or may be with sim card as every other operators sim cards gets registered and there is no airplane bug there.. ( i tried Airtel/Docomo/Vodafone/Idea networks)
Is it do with RIL..
Kindly help me as this is same problem faced by so many people around globe with their operators..
High Rgds
yogeesharma said:
Dear Devs,
I was facing a problem related to Airplane Bug on Miui/CM7 roms, so i googled related to this but couldnot find anything of help. So thought of asking for your help..
1) Whenever i flash a stock or custom froyo/eclair/GB rom, it detects my network which is BSNL india without any problem
2) But when i flash any CM7 or ICS rom, my phone doesnot come out of Airplane mode at all..
3) So, i tried everything, but of no use.. IMEI is good ... nothing is corrupted
4) Yesterday, when i changed SIM card to other operators present in india, the airplane bug is gone
5) so i feel that problem is either with BSNL operator or may be with sim card as every other operators sim cards gets registered and there is no airplane bug there.. ( i tried Airtel/Docomo/Vodafone/Idea networks)
Is it do with RIL..
Kindly help me as this is same problem faced by so many people around globe with their operators..
High Rgds
Click to expand...
Click to collapse
Okay!!! So i'm not alone in this. I thought it was some other issue.
It's there with BSNL Network [ India ] . The radio doesn't turn on at all!. i flashed the JVT Modem as well ( Which works with samsung ROMs in the same network). The issue has been there since ICS Build 6/7 and MIUI also now. No networks showing. The radio is not turning on.
thank god!
I always thought it was my phone.
So it is an issue with BSNL.
please post a solution if there is any.
Thank you.
i had this problem with my phone a few times, i am living in turkey and i am with turkcell right now. i managed to solve it with a few steps:
1. turn on airplane mode from the settings page (not from the power menu). make sure you see the airplane logo in the status bar.
2. reboot to recovery and wipe cache only
3.when the phone boots up from recovery, turn off airplane mode from settings, and go to mobile networks page. select network operators. it will search for a while, go grab yourself a cup of coffee. after 5 minutes or so, wake up the phone and you will see the signal bars and phone is functional again!
u r not only who facing this problem ...
Hi .. i have same problem in BSNL .. while using CM/MIUI or CM based any rom ex: insanity rom .... even i m not able to solve airplane bug ... i searched a lot regarding this n read a lot .. there isnt any proper solution .. when i restart my phone sometimes No Service shows .. n that airplane mode still on ... i complained to Dev abt this ... and even about support for third party call recording software .. there is no solution yet .. ...
plz dev do something for issues ... we are huge fan of your rom ... and dont want to switch over any other rom ...
thanks ....
re-flashing same modem number of times do work some time..
pl you people and i also do trial and error to find best suited MIUI CM7 modem for India-BSNL
i was partially successful with jp5 here... Phone once detects network ... but on next boot... Network is gone again...
so...
flash different modems from recovery.. and if lucky enough.. can get network in 2nd or 3rd flash... ( you may also clear the cache)
please try different modems...
from this link... http://forum.xda-developers.com/showthread.php?t=1158783
lets post our findings here.. and find out best modem for INDIA
@all .... i m using MIUI ROM 1.11.25 has no problems from last month ... i got problem while i updated it .. then after there is no "No Service" problem ... try out guys ... it works like a charm .. i m using BSNL .. n dnt have problem ..
Are you subscribed to 3G services? It seems like the Samsung RIL implementation toggles to 2G mode quicker than Hacked RIL implementations that are on CM7 and MIUI which don't work so perfectly.
If you are not subscribed to 3G services, the phone would try to register on the 3G network upon Network Toggle or Airplane Toggle quite a while before actually switching to 2G. At this stage, you get the No Service bug which lasts quite long on CM7 or MIUI before getting back to 2G and getting a Network lock.
Have you tried using the 2G only mode and see if it gets better?
Unfortunately, RIL Implementations are properitary to Samsung and we won't be able to use them on AOSP based roms due to lack of source code.
solution
http://forum.xda-developers.com/showthread.php?p=21350908#post21350908
i tried this and it worked.
But i lost my lock-screen
will re-flash and try again

Network Speed and Other Issues after unlocking bands

Hi all
I have a Mi5 64GB phone and I have a weird issue that I think has started after unlocking the bands. After unlocking the bands I noticed that mobile network is slow and most of the websites timeout (eg: google.com, yahoo.com) and some application time out too and/or extremely slow on mobile network (Have good reception). There is absolutely no issue when using WiFi
Network Speed test returns ~50MBps download speed.
Ping to google and yahoo work
I have done following stuff to try and fix the issue:
I have reinstalled the MIUI Global ROM 6.9.29
I also tried installing MIUI Global ROM 6.9.22
I did a clean install after wiping data/system/etc
Did a factory reset
Installed official MIUI 8.0.2.0 using fastboot (Full clean install)
Manually updated the modem
Updated firmware to MIUI 7.5.9.0 and MIUI 8.0.2.0
The issue does not exist when I install CM13 or Resurrection ROM or any CM based ROM. Everything seems to work just fine on these ROMS
Please advise

LTE and 3G stopped working?

Hi guys.
So a week ago my Mi5 only want to connect to edge, the LTE and 3G simply wont work.
I tryed everything, forcing it to only use LTE = No connection - same goes for 3G
I have also tryed to reset APN settings and nothing. I contacted my carrier, and they told me everything was fine.
I just tested it in my old Meizu and the LTE works fine. Anyone know what could cause it?
Please help, cause as for now the connection is so slow that without Wifi it might aswell be a flipphone...
Update: I also tryed to install a stable rom using this method: http://en.miui.com/a-232.html
But i cant, i get the "Your allowe to flash the newest stable rom from develop version ONLY"
Try this:
1. In Settings/About phone/ press several times on Internal memory
2. Press Phone information 1 or 2
3. Scroll down and Set Preffered network type as you see on image or chose LTE Ony .
4. Wait few seconds till change has effect.

Signal drop

while on custom roms after 10-15 minutes of booting up the signaofl sim1l drops and hd(volte) icon is gone but on the ui it shows full signal and when i open settings there is no option to search signals can'tuse volte and stuff had to reboot and same problem occurs after 10-15 minutes
while on stock/stock based roms the signal or sim2 drops and in ui its also shown and it come back after a while
treid nougat roms , freedom os , stock , sultan cm13 , custom kernels still same problem occurs tried using different firmware , and also tried to restore efs of stock based rom on custom roms but it broke the dialer i.e call doesn't connects
please help me can't use nougat as daily driver
sorry for my bad English
on freedom 1.7

Random network disconnection and can't search for network manually. HELP NEEDED.

I first experienced this bug after I installed superior os 25/10/2018 build. The bug was that the network signal keeps getting disconnected and reconnected automatically at random times, and I couldn't set the network manually. So i thought that it was a rom bug, and i went back to miui, but what i found is that bug was now also in MIUI , and i cant fix it. I tried flashing miui 10, latest version of 9 via twrp and also with mi-flash tool (fastboot) ,but the bug is there on every rom, i cant find a way to fix it.
I googled and found that someone else had the same problem in some other xiaomi device and there i noticed the term - "somehow RIL is getting stuck & re-initializing (restarting)" , <- maybe this is the problem .
Can anyone help me fix this RIL thingy please ? :crying:

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