2G or not 2G

[Anonymous]

Hello,

This maybe a bit of a challenge but I'm hoping someone will be able to help?

I have recently bought a device that should activate an alarm (text message) to my phone if it senses an intruder. The device is from China and states that it requires a 2G sim to be inserted into the device, having asked High St phone shops before purchase I was informed that any new sim would work on a older 2G network phone anyway so not to worry.

I have now received the device in the post and have inserted a PAYG sim (already checked to be working on a old phone I had lying around) anyway......it does'nt bloody work in the device. I have researched the web to no avail other than some suggestions that the older sims worked slightly diffrently, and I can't buy an old sim for love nor money.

Please help

[aldaweb]

May be a silly question but did you top-up and check you can dial out on the phone you tried it in or just see if it detected the network?

[Anonymous]

Yep done that, I have started it up on an old phone,topped it up, activated it, sent messages to and from it and ensured there is no pin lock on the sim.

[Anonymous]

Have you checked with O2 that the device is compatible with an o2 pay/go sim?  Call 4445 and check it out.  Might be that the device isn't intended to be used on the o2 network.

[perksie]

There are some old type Orange 2G sim cards on Ebay between £5 and £10 each.

[Anonymous]

Pablo, I've not done this yet as I was hoping to get a quick solution on here.

Perksie, Yeah I've just seen those. How would I go about activating one though? I sure the numbers and sim would not be recognised now all this time later?

[perksie]

That I don't know, but they should be returnable if they don't work.

[aldaweb]

Do you know what bands the 2G for the device operates on?

900MHz for o2/ voda 1800Mhz for Orange/ t-mo generally.

US are 850/1900

[Anonymous]

Hi Aldaweb,

Works on the following:

• Operating GSM Frequency: 850MHZ, 900MHZ, 1800MHZ, 1900MHZ
  

Means nothing to me though??????

[aldaweb]

It's got the right band for O2 - 900 so should work with O2 SIM. Maybe faulty.

Sent from my Z10