Today my girlfriend got s4 mini i9195 international lte version.
The phone is on 4.2.2 and i noticed that the signal is very poor on network.
On my s3 i have full 4 bars while she has none/1 bar, also the wifi disconects sometimes, it says it is connected but it doesn't load anything, it needs to be switched off and on again.
The phone is brand new unrooted.
Is it due to bugs in 4.2.2 (i don't know i don't follow s4 mini forum just s3).
I also tried software update but it says it's the latest (lying obviously
Also to mention, sometimes the SystemUI restarts and wallpaper goes black. Is that another bug?
Any help is appreciated, cheers.
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Samsung Galaxy SIII i9300 16gb pebble blue
Boeffla kernel 5.3 stable / Archikernel (testing)