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Lenovo s850 no signal n no service network

Hallo everbody...
I has problem with my lenovo device...
I flash a new rom s850 row s207, when i insert my sim card my phone detect the sim card but still no service n my signal keep searching...
I try chance the modem but still same problem..
I have invalid emei but i restore back the emei number.
can anybody help me...
Sorry for the bad english...

lenova s850 no service
ME to same problem my hand set wroking fine with network but some time its going hang then i formate with sp tolls i did't take nvram backup . after i restore my imei but now my phone no service and say only oprater name like (no servive /idea).
i restore aslo same phone nv backup with sp tolls nv write sucess not still same no service
my nv address starat 0*180000 end 0*50000 Mtk 6582(model lenova s850)
Any suggestion plz

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i have a permanent solution for Lenovo s850 no service problem
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Meshah said:
Hallo everbody...
I has problem with my lenovo device...
I flash a new rom s850 row s207, when i insert my sim card my phone detect the sim card but still no service n my signal keep searching...
I try chance the modem but still same problem..
I have invalid emei but i restore back the emei number.
can anybody help me...
Sorry for the bad english...
Click to expand...
Click to collapse
Have you checked all of your network settings?
Have you tried searching to find if there is a secret dialer menu to control your radio settings?
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

[Q] mi4 cellular network connection error

Hi Guys
I need your advice to solve the following problem.Does anybody encounter this kind of problem ?
Please help me about it
My phone is version of fdd-lte (China unicom).As I know that version supports WCDMA( 3G ) because in my countary just 3G is operating .When I insert SIM card ,after enter its password ,then I am searching operators manuelly .It can find operator then I select it ,phone is giving error of "cannot connect to this network right now .try again later" .After this warning ,phone is asking for SIM card password again.

lenovo s850 invalid imei & SN

This problem raised When I flashed my lenovo s850 with custom rom when the flashing is done it worked but when I inserted my sims it showed me invalid imei then I typed *#06# it showed me invalid imei, ihav googled it & fixed my WiFi nvram error & successful with imei.zip method and pasted my imei numbers but same problem arises that no service when I inserted my sim & serial number also gone, it is showing sn:0000000, I have even showed in lenovo service center but they said it will take up to 20-30 days to return from factory.. Any suggestions to solve my problem?
Thank you.

I have the same problem after I write other firmware to change language package....

[Q] Can't connect to 2G or unable to reach signal after lost it

Hello everybody!
I have this kind of problem:
my OPO suddenly have signal problems: it's unable to connect to 2G signal (returns me "No signal" label), if I want to search for networks it returns me "Error while searching network" and if I lose signal (for example when I go to the metro underground) it can't reach for signal anymore once I go out.
My IMEI and baseband version is shown properly though
I tried:
Change several ROMs, from paranoid to nightly
use Msm8974DownloadTool to restore it
reflashing by fastboot several version of CyanogenOS
restoring EFS partition following this guide http://forum.xda-developers.com/oneplus-one/help/fix-brickloop-audio-fx-fc-efs-corrupt-t2879061
What can I do now?
Thanks in advance

Oppo F3 CPH1609 MT6755

I already repaired IMEI (dual) and already connected to my WIFI but still, NVRAM error is showing. Even though i can access the internet (browser/youtube) using my oppo f3. And also IMEI SV is unknown.
Another question (??hardware??)
*note: after flashing stock rom
1. Figher print/home button not working anymore
2. Battery connection error shows up