[HELP] No network signal even sim is inserted. - OnePlus 8 Questions & Answers

Have anyone encounter this issue ? I don't have anything and can't see my IMEI even on about phone IMEI is unknown. Please I need your advise and help TIA

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sgs not locked but network still locked !!!

Yesterday i just realized that my phone can't check for network.....
The place where the network belong there it shows a (/) sign like this.....Entering a Sim does not ask for any code or pin....
The signal strength is 0dbm.... and when i type #7465625# in the dialer it shows that every thing is unlocked....Is there a hardware problem..?
Phone:Galaxy S
Firmware: 2.1 (Eclair)
Please help...
Extra: My imei is corrup now......
I think that should solve the problem.....
but i need to edit the imei .... not restoring it....
Help

[Q] Data network problem

I have flashed the ICS rom ported from su760 and lost my IMEI no., I followed the general guide to recover my IMEI and now it shows my IMEI n.o. correctly, but still I cannot receive any 3G signal but I can receive phone calls. It kept saying network disallowed. I have tried to flash different basebands (im currently in US) but still this problem exists. I have read most of the guide already but nothings work....Can someone please help me out??

How to fix unknown Baseband

Hello Expert,
i think I Need Help how to fix unknown baseband and unknown imei on my galaxy S gt-i9003. that is the causes of not been able to pick the simcard.
there is no network on my phone. its said insert sim.
Pls help
thanks
erneeh said:
Hello Expert,
i think I Need Help how to fix unknown baseband and unknown imei on my galaxy S gt-i9003. that is the causes of not been able to pick the simcard.
there is no network on my phone. its said insert sim.
Pls help
thanks
Click to expand...
Click to collapse
You need to restore the EFS backup.

Not Registered on Network J710FN

Hello
I have a problem and I don't know if it is software problem or hardware problem...
Everything works but not the sim card....
I can insert the password for the sim but I can not call
it says Not Registered on Network
I have done upgrade to Nougat but the same thing...
Is the motherboard defected?
please help

Mobile Network just No Service

Hi. I'll simply explain what happend.
I'm tried to fix this, how can back again this signal to normal. I try to back flash again and change firmware but same not happen just no service. Please can someone for help me for this my problem.
For imei and baseband it's correct
Thank you

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