Accidentally touched phone terminals with metal part of nano SIM card

[melvyn]

Hi there,

I got a new basic Samsung phone (just for calling/texting) yesterday. I was trying to insert my nano SIM card (from my iPhone) into the mini SIM slot of this basic phone. While doing this, the nano SIM card flew away and landed on the metal terminals of the phone (the ones which align with the metal strips on the battery). Note that I'm talking about the metal terminals on the phone, and not the positive/negative terminals on the battery.

The phone is working fine, and it detected my nano SIM card, although the slot is actually that of a standard SIM.

I've read that you shouldn't touch the battery terminals with anything metallic. That didn't happen, but the metal (circuit) part of my nano SIM card did come into contact with the phone terminals (the ones which get aligned with the battery terminals).

Here's a picture of the phone terminals.

My question is:
Is it still safe for me to use this phone? Or could I have accidentally short-circuited something?

Thanks.....

 

[PizzaTheHutt]

It should be absolutely fine - nothing should be short circuited as there was no power being provided to the phone when this happened.

 

[melvyn]

But even when there's no power, the Samsung phone manual says that the battery should never come in contact with any metallic surface.

From the manual:

"Do not allow the battery to touch metal objects. Accidental short-circuiting can occur when a metallic object
(coin, key, jewelry, clip, or pen) causes a direct connection between the + and - terminals of the battery (metal strips on the battery), for example when you carry a spare battery in a pocket or bag. Short-circuiting the terminals may damage the battery or the object causing the short-circuiting."

So I guess there is a risk of short-circuiting? Please correct me if im wrong.

 

[PizzaTheHutt]

That's for the battery itself - not the terminals in the phone that touch the battery.

 

[melvyn]

Thanks...do the phone terminals not have any positive/negative stuff that could pose a risk? They'd be fine even if they touch a metal surface? I'd be glad if you could share some data on this....or some background info....I'm pretty clueless about electrical stuff...

 

[PizzaTheHutt]

Thanks...do the phone terminals not have any positive/negative stuff that could pose a risk? They'd be fine even if they touch a metal surface? I'd be glad if you could share some data on this....or some background info....I'm pretty clueless about electrical stuff...

It's because no power at all is being provided to the phone - if there's no battery, where would it be able to get power from to cause a short circuit? They should be fine even with a metal surface.

 

[melvyn]

Thanks pizzathehut..that helps. I'm pretty relieved now....

 

[PizzaTheHutt]

No problem. Glad to see that I could help