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Thischapterlistssomeproblemsyoumightencounterwhileusingyourphone.Some
problemsrequireyoutocallyourserviceprovider,butmostareeasytofixyourself.
Message Possible causes Possible corrective measures
SIMerror
ThereisnoSIMcardin
thephoneoritisinserted
incorrectly.
MakesurethattheSIMcardiscorrectly
inserted.
Nonetwork
connection/
Losing
network
Signalisweakoryou'reoutside
thecarriernetwork.
Operatorappliednewservices.
Movetowardsawindoworintoanopenarea.
Checkthenetworkoperatorcoveragemap.
CheckwhethertheSIMcardismorethan
6~12monthsold.Ifso,changeyourSIM
atyournetworkprovider'snearestbranch.
Contactyourserviceprovider.
Troubleshooting