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N975F lte and phone signal issues can wrong CSC cause this?

(Topic created on: 05-04-2022 07:18 PM)
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hallo,
The phone has no warranty so I really am asking for help.

Note has completely random signal problems, shows full bars and lte icon all the time, but mobile internet is down and sometimes also call signal. Wi-fi always works fine.

What is weird - sometimes everything works flawlessly, I can't find a dependency. (of course in my house in the same place, on my other A21s there are never signal problems - and I tested my sim cards on other phones as well).


When I bought this phone, I flashed Android 12 via ODIN. I choose right CSC for my region XEO (Poland) which is different than stock AUT. My baseband is n975fxxu7hvb9 -
which appear in firmwares from Switzerland -AUT. Does the wrong csc or baseband causing this problems? I attached screeneschts form phone.

Pls. hep guys local phone carrier said that this is motherboard problem and fix will be very expensive...277961134_518675353052540_5461484225700424580_n.jpg277885234_1173159823452001_8693756748823425169_n.jpg

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