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RUIM Usage (RUIM Models Only)
Your service provider may require you to install a RUIM in your SX5 for it to operate normally (see
RUIM Card Installation (page 1) for details). Without a RUIM, these SX5 models will reject incoming
calls and allow only emergency outgoing calls.
Once a RUIM-using SX5 is operating normally, you can use it to set its RUIM to require a PIN, not
require a PIN, or change the existing PIN. See Security (page 20) for details.
Starting Your SX5 with a RUIM PIN
If your RUIM requires a PIN (Personal Identification Number, also called Cardholder Verification, or
CHV), follow these steps:
1. Power on your SX5.
2. The SX5 will prompt you to enter your PIN. Enter the PIN for your RUIM, then press STO.
3. If you enter the wrong PIN, the SX5 will display an error message and ask you to reenter the
PIN.
4. Entering an incorrect PIN three times will cause the SX5 to block the inserted RUIM. If your
RUIM is blocked due to incorrect PIN use, it will prompt you to enter the unblocking code. You
must contact your service provider to obtain this unblocking code. Do not guess at the block
code or use your own PIN to attempt to unblock the SX5; entering wrong codes will eventual-
ly cause the RUIM to become permanently blocked.
5. If you are unable to enter the correct PIN for the inserted RUIM, the SX5 will not operate
normally. It will reject incoming calls and permit only emergency outgoing calls.
Starting Your SX5 if Your RUIM Requires No PIN
Power on your SX5. No additional steps are necessary.
Starting Your SX5 if it is Bonded to a RUIM
A SX5 may be bonded to a specific RUIM. Once it has, the SX5 will not operate normally with any
other RUIM installed in it. It will reject incoming calls and permit only emergency outgoing calls. The
same holds true for any other SX5 the bonded RUIM is installed into: it will not operate normally.
To start a bonded SX5, power it on. No additional steps are necessary provided that the correct
RUIM is inserted into the SX5.
If you want to bond a SX5 to an RUIM, contact your service provider.
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SX5 CDMA 6 Technical Manual