I am having exactly the same issue with a ZTE Zip, paid the $25 to unlock, put in a ALDI/Telstra SIM, entered the code, and can send/receive txt but cannot make or receive phone calls. SIM card works fine in other unlocked phones including my postpaid Optus phone.
WHY is this so? Needs to be sorted!!
Mate, apparently there's no way around it, you'll have to either buy a new phone or switch it back to the old service provider. I had this issue when i purchased an oppo a73 phone from optus, paid an extra $25 to get it unlocked then changed my service provider to telstra just to find out you cannot make calls once you change from optus to telstra network, something to do with not receiving frequency band 35 on the oppo phone, I tried everything, even went to the highest levels of support and these idiots at optus tells me, 'everything is online'. What a complete waste of money and time.....I had to bloody buy a new unlocked phone.
What is the solution been trying for two years to use Telstra Sim in unlocked Optus phone has been so frustrating can surf web but can't make it receive calls please reply *personal info hidden*
Hey there shadow2010,
If you click on Page 2 of this thread you'll see the post from TechBoy007 that you're after. Let us know if his tip/advice works for you.
Please note we have hidden your personal e-mail address on our public forum.
Hi, thanks for this, it is great information and worked for me. The only caveat is that restarting the phone seems to reset those settings back to the default. Has anyone else had this problem too? For me unfortunately this is a problem as I was planning on giving the phone to a relative who's not tech savvy...
Thanks for any help!