But there is one phrase that strikes fear into the heart of any B312E owner: "Enter SIM lock password." samsung sm-b312e sim lock password

Before buying a used SM-B312E, always insert your SIM card first. If the lock screen appears, hand the phone back. Unless you are willing to spend $5 on an unlock code, you are buying a locked brick. But there is one phrase that strikes fear

The SM-B312E is unforgiving. Most versions of this phone give you exactly 3 attempts before permanently locking the SIM card and demanding a PUK (Personal Unblocking Key) . Guessing wrong will turn your phone into a paperweight until you call your carrier. samsung sm-b312e sim lock password

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