I'm switching from an old crappy phone to a hand-me-down LG Expression [lgc395] but when I do it says "service unavailable." But it works fine in my older phone.
The phone maybe locked to another carrier and is not registering the SIM on the network. Just because it is a GSM phone (SIM) card doesnt mean that it will work on any GSM phone. GSM carriers in USA are TMO, ATT and prepaid resellers.
SOURCE: lg t mobile phone
try placing other sim card on your phone! if it still switches off, then you should send it to a service personnel!
SOURCE: Cell phone sim card
All mobiles have a sim card and are normally located under the battery.
Take the back of your phone, remove the battery and it should be there. Sim cards are normally a small oblong piece of plastic with a corner cut off. The flip side of one will have a metal strip, which is your sim memory. Don't damamge this side of the sim otherwise your card will be useless.
Hope this helps?
SOURCE: samsung z400 phone freeze
hi i have a z400 how ever when i search for devices via bluethooth or people search for me im unable to send or recieve files
SOURCE: my samsung B7722, first time
Tired of memorizing new PIN codes? We show you how to change your SIM card's various PIN and PUK codes in less than 5 seconds.
Although most people remember their primary SIM PIN code, those othercodes - used for various verification purposes - are never to be foundwhen needed. Below we've included a set of short codes which, whenentered on a handset's standby screen, will let you easily change PINand PUK (short for Pin Unlock Code) codes - but keep in mind, they maynot work with all handsets and mobile operators.
More importantly, when changing ones PUK codesthere'll be no help to get from the mobile operator if the new codesare forgotten, so make sure to write any changes down alongside the oldPUK codes. Also, please note that the codes should be entered withoutthe spaces shown below.
Change SIM Card PIN
** 04 * old PIN * new PIN * new PIN #
Change SIM Card PIN 2 (Write down the new code)
** 042 * old PIN * new PIN * new PIN #
Change SIM Card PUK (Write down the new code)
** 05 * old PUK * new PUK * new PUK #
Change SIM Card PUK 2 (Write down the new code)
** 052 * old PUK * new PUK * new PUK #
Display Handset IMEI
*# 06 #
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SOURCE: Phone Freeze SIM Unavailable Please Contact Servic...
you can get unlock codes here
http://www.superunlockcodes.com/samsung/rs12wp8/
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