Frequently Asked Questions

... and the answers to them ...

Q: My phone shows "Phone Lock" in the Display. What should I do?
Q: My phone shows "PIN Lock" in the Display. What should I do?
Q: What are the Hotline and SMS Message Centre Numbers of the Network Providers?
Q: Where can I download a user manual for my Siemens Mobile Phone?
Q: My Question is not listed here. Where can I get more information?

Q: My phone shows "Phone Lock" in the Display. I have entered three times a wrong Phonecode. Now I cannot use the phone like before.
A: You need the Master Phone Code (MPC) to unlock your phone. Please bring your phone to one of our Service Centres to get that Master Phone Code for a small handling fee. Bring along something to identify yourself, e.g. your ID card, driving license or similar document.

Q: My phone shows "PIN Lock" in the Display. I have entered three times a wrong PIN. Now some of the functions of my phone are disabled.
A: You need the Pin Unblocking Code (PUK) to unlock your SIM card. Please contact one of the Service Hotlines of the network providers on how to get that code. Since this concerns the Sim card, and not the phone, Opticom cannot give you that code.

Q: What are the Hotline and SMS Message Centre Numbers of the Network Providers?
A: The numbers are:
GPC/VinaPhone:
Hotline:151, SMS Service Centre: +8491 020005, +8491 020010
VMS/MobiFone:
Hotline: 145
SMS Service Centres: North: +8490 400012, Middle: +8490 500012, South: +8490 700000

Q: Where can I download a user manual for my Siemens Mobile Phone?
A: They are available on Siemens' site. The fastest way to find them is to use our link page.

Q: My Question is not listed here. Where can I get more information?
A: You can visit Siemens' website www.my-siemens.com,
send us an eMail, call or visit one of our Service Centres, or call to our hotline: 090 - 345 6789.

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