Network problem/network signal gone after rooting android smartphone.... - Galaxy S III I9305 (4G LTE + 2GB RAM) Q&A, Help &

hiii guys,i have got a problem.i rooted my android smartphone and when i rebooted my phone i am facing network problem.There is no network signal showing at all both 3g and 4g. Everything is working fine but no network signal and when i went to network setting to check network there is no network and when i changed network mode from GSM to 4G or 3g to 4G VISEVERSA.There is a msg showing com.android.phone has stopped and also when i went for change network there is an error for network search.Guys please help me.anyone have idea what happened?? and how can i solve this problem please tell me...

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Pictures attached..
same problem here.. but little got a bit different
My XIAOMI REDMI 4X phone only can connect to 4G LTE and cannot find or receive 3G / 2G network signal.
Because of this problem i only can use one SIM at a time it coz when i use SIM1 for using mobile data, SIM2 will showing "No Network" this happen cause of SIM2 couldn't get 3G/2G network signal for its connection. Same issue if I switch SiM2 as my mobile data. SiM1 will be "No Network".
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Greetings,
I recently replaced the charging port and swapped the battery after that my phone lost reception and only says no network, when i try to change the band from 4g lte to 2g or 3g nothing happenes..
Any solutions ?
I tried almost everything

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