Unable to connect to 3g network - Xiaomi Redmi 1S

Recently i bought an Airtel Sim card,the problem i am facing is thata whenever i move from one city to another the network connection loses,i have to seach for network manually everytime. Even my Redmi 1s is unable to search for 3g networks,but when i piut the sam sim card in other phones,the 3g works.Do i have lost the baseband? or something else is the problem?
I am on Cm 12.1
Do i need to flash fastboot rom to fix it?
Plz help me guyz ASAP,its urgent

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[Q] (solved) no data connection after root or wify

*update:
there is network down..stupid me, I already flashed my rom to factory reset..
Please help me..
I just root my note II. After that I turn on wify and now my phone dont have data connection.
Cannot connect to 3g, the h sign change from 3g h h+.
The bad part is I dont know it is because root or the wify. But I think it is the wify, because my data connection error when I turn off wify.
Airplane on off also cannot.
Please help me......

Micromax canvas A210 : Unable to get network bars!!!

Hello friends Im new in this xda forum and im facing an issue with my micromax canvas a210.
I have been using this phone from last 2yrs bt however from last 6mnths im facing network issue wherein I'm not able to get network bars.
i had factory reset my phone 1nce and from that time im facing this issue.
after that i tried hard reseting my phone several times and then too im not able to solve the problem
Sometimes I get network bt suddenly after some times it disappears.
When i manual search for network it shows error "unable to found network providers"
i think it may be some kind of software issue bcuz my hardware is okay.
bt when i put the same sim card in another phone it shows full network on the same location.
Kindly help me on this.
I came to know thru the forum that by flashing custom rom can solve my problem, if yes then kindly suggest the best custom rom, which can increase my phone's performance.
also my phone is ROOTED
ok... what are the roms that you have tried.
there are modems available as flashable zip files also
can you try and report please....
vinayakz_nis said:
Hello friends Im new in this xda forum and im facing an issue with my micromax canvas a210.
I have been using this phone from last 2yrs bt however from last 6mnths im facing network issue wherein I'm not able to get network bars.
i had factory reset my phone 1nce and from that time im facing this issue.
after that i tried hard reseting my phone several times and then too im not able to solve the problem
Sometimes I get network bt suddenly after some times it disappears.
When i manual search for network it shows error "unable to found network providers"
i think it may be some kind of software issue bcuz my hardware is okay.
bt when i put the same sim card in another phone it shows full network on the same location.
Kindly help me on this.
I came to know thru the forum that by flashing custom rom can solve my problem, if yes then kindly suggest the best custom rom, which can increase my phone's performance.
also my phone is ROOTED
Click to expand...
Click to collapse
http://forum.xda-developers.com/canvas-4/help/help-network-wcdma-mode-t2937023

Cant get Sim card to work..

Its recognizable it can find network but the signal its 0 and when i choose my network after some time it fails to connect to my network.. Any solution? I already flashed stock rom but nothing! Now im trying all the Custom Roms..

can't connect 3G networks

Hi,
I have a problem with my lg g3 d855. After a few months i started using my g3 and flashed lineage 14.1 , kernel , magisk etc.
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Hi all,
I'm looking to use this smartphone as car meultimedia system and GPS navigator
The idea is to use a spare sim 3g data only
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