[Q] Galaxy Note 3 SMN900W8 sim not working after updating..!! - Galaxy Note 3 Q&A, Help & Troubleshooting

Hello I have this Galaxy Note my brother gifted me it's SMN900W8 it was running 4.3 then I searched and found that it has a update for 4.2.2 I successfully update it but now the sim is not working I have tired every sim it says not registered on network can someone please help what have gone wrong I have added the screen shot of firmware

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[q] clone samsung galaxys4

Hi dear experts
i am chintan from india
i recently bought clone samsung galaxys4 gt-i9500 from china
my problem is that device has imei number but when i insert sim in it it shows no coverage
here i give screen shot
pls guide me what can i do to use it here in india
unlock or root???
And in any of this my version remain same or newly installed???
It is not a gt19500.This forum does not support clones.This is the forum for people who have proper samsung galaxy s4.
thanks dear for your reply ...
its ok if u don't i will found my way

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hiiii....my phone is not working after i unlocked sim network problem. actually i give my phone to someone who is working in mobile solution company he unlocked my samsung s4 sgh-i337m phone.he told me that he changed my phone imei number first than he unlocked my phone.my friend gifted me this phnone he is in canada now im having another prblm with my phone now my phone showing not registered to network when ever i make call it shows that and some time it works...please help me please...my phone is on 4.4.2 model samsung galaxy sgh-i337m
Sir,
Please wait until mods will move this thread to the device specific forum for more relevant answers.
Stand by
Good luck

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Update my sim unlocked Sprint Galaxy S7 to stock Nougat will lock it again?

Hi guys,
First i need to say my android knowledge is less coz i am a guy who coming to android from iOS backyard. I recently bought a Samsung galaxy S7 in Singapore. I bought it from a generic shop(not from official Samsung shop)
Unfortunately I got to know from Samsung, this phone is a sim unlock phone which is originally belongs to Sprint USA. Currently It's running Android 6.0.1 and I can use my local Singapore sim. When I check the IMEI number from the web it says the model is "Galaxy S7 G930P". But within the phone settings it says the model number is "SM-G930F".
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Thanks

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