Engineers in the house please a need ya help.

So i got this "Japan used" Sharp-Aquos SHV37 phone a week ago. The phone is cool, considering the amazing price but i noticed some issues with it, guess the issues is why it's that cheap...

First is that the phone requires me to "choose dialing destination" asiin to add an international dialing code for all calls else the call won't go through.
It brings out a "dialing destination" dialogue screen each time i dial a number asking "To Japan" or "To Overseas" if i choose "to Japan" it will automatically add +81(Japan's dialing code) to the number inputed and dial but if choose "to Overseas" it will ask ask that u add the call destinatiion dialing code.
Even when I wan call Basira wey dey end of my street to ask weda her ewa agoin and agege bread don ready i must add +234 or the call no go go.

The main issue here is that there's no way for me to successfully dial any USSD code(*123#, *556# etc.) cause the thing go still dey require international dialing code and even if u add am(like +234*123#) it still wont work.
Incoming calls are working perfectly same also the browsing and its really fast(better 4G no be all those half-G wey dem tecno and infinix dey get) and the outgoing calls too so long i add the +234 to the numbers i want to call.

...and sim contacts too are not showing on the phone.

The seller still has more of the phone. If there's a way to fix the issue na to go buy the remaining ones be dat ooo.

Shadowdreams:
Engineers in the house please a need ya help.

So i got this "Japan used" Sharp-Aquos SHV37 phone a week ago. The phone is cool, considering the amazing price but i noticed some issues with it, guess the issues is why it's that cheap...

First is that the phone requires me to "choose dialing destination" asiin to add an international dialing code for all calls else the call won't go through.
It brings out a "dialing destination" dialogue screen each time i dial a number asking "To Japan" or "To Overseas" if i choose "to Japan" it will automatically add +81(Japan's dialing code) to the number inputed and dial but if choose "to Overseas" it will ask ask that u add the call destinatiion dialing code.
Even when I wan call Basira wey dey end of my street to ask weda her ewa agoin and agege bread don ready i must add +234 or the call no go go.

The main issue here is that there's no way for me to successfully dial any USSD code(*123#, *556# etc.) cause the thing go still dey require international dialing code and even if u add am(like +234*123#) it still wont work.
Incoming calls are working perfectly same also the browsing and its really fast(better 4G no be all those half-G wey dem tecno and infinix dey get) and the outgoing calls too so long i add the +234 to the numbers i want to call.

...and sim contacts too are not showing on the phone.

The seller still has more of the phone. If there's a way to fix the issue na to go buy the remaining ones be dat ooo.

I think your phone still have SIM lock.
Japan have 3 major cell phone company.
Docomo, SoftBank, au.
Your phone is Japan used phone.
So maybe owner of that phone had contract with one of cell phone company in Japan and used it.
And maybe didn't unlocked SIM from company.

I'm sorry, I can't explain well.
When you have time, Please check their Website.
They maybe have English page.

Shadowdreams:
Engineers in the house please a need ya help.

So i got this "Japan used" Sharp-Aquos SHV37 phone a week ago. The phone is cool, considering the amazing price but i noticed some issues with it, guess the issues is why it's that cheap...

First is that the phone requires me to "choose dialing destination" asiin to add an international dialing code for all calls else the call won't go through.
It brings out a "dialing destination" dialogue screen each time i dial a number asking "To Japan" or "To Overseas" if i choose "to Japan" it will automatically add +81(Japan's dialing code) to the number inputed and dial but if choose "to Overseas" it will ask ask that u add the call destinatiion dialing code.
Even when I wan call Basira wey dey end of my street to ask weda her ewa agoin and agege bread don ready i must add +234 or the call no go go.

The main issue here is that there's no way for me to successfully dial any USSD code(*123#, *556# etc.) cause the thing go still dey require international dialing code and even if u add am(like +234*123#) it still wont work.
Incoming calls are working perfectly same also the browsing and its really fast(better 4G no be all those half-G wey dem tecno and infinix dey get) and the outgoing calls too so long i add the +234 to the numbers i want to call.

...and sim contacts too are not showing on the phone.

The seller still has more of the phone. If there's a way to fix the issue na to go buy the remaining ones be dat ooo.

I'm sorry. I misunderstood.
Your phone is already SIM free.
If still had SIM lock, can't work another SIM card. I'm sorry.

I checked Japanese Website.
They are writing about APN setting.
After put SIM card, you need to change APN setting.
I'm not sure if after setting can fix it or not.
But that what I read.
Or you already fix it?