[Galaxy S III Q&A, Help & Troubleshooting] extralife:
missed :D

if you're updating the rom, you can flash this zip through cwm(-recovery)

includes spn-conf.xml with following

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 2006, Google Inc.
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->

<!--
spnOverride attributes:
numeric: MCC+MNC from IMSI - this attribute is used as the key
imsi_subset: this attribute is used as a imsi filter (imsi format is: [MCC][MNC][imsi_subset][rest of imsi]) - the longest matching imsi_subset is a best match
spn: spn to show instead of EFSPN. locales can be specified here too, if needed
spn_display_rule: SPN_RULE_SHOW_SPN, SPN_RULE_SHOW_PLMN or both
fake_home_on: regard specified PLMN as home
fake_roaming_on: regard specified PLMN as roaming (comma-separated list)

examples:
<spnOverride
numeric="45001" spn="ko_KR;?�국??SPN,en;English SPN,fr;Français SPN,pl;Polski SPN,Default SPN"
spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="45001" fake_home_on="00101,45008"/>
<spnOverride numeric="46001" spn="zh_CN;￀?��?��? />
-->
<spnOverrides>

<!-- Spain -->
<spnOverride numeric="21404" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="214"/>
<spnOverride numeric="21406" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="214"/>
<spnOverride numeric="21408" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="214"/>
<spnOverride numeric="21416" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="214"/>
<spnOverride numeric="21419" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="214"/>
<spnOverride numeric="214" fake_home_on="21401,21403,21404,21406,21407,21408,21416,21419"/>

<!-- SENA -->
<spnOverride numeric="24001" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="24005"/>
<spnOverride numeric="24007" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="24005"/>

<!-- Finland -->
<spnOverride numeric="24421" fake_home_on="24405"/>

<!-- Japan -->
<spnOverride numeric="44010" spn="NTT DOCOMO"/>

<!-- Belgium Telent - Proximus and Mobistar-->
<spnOverride numeric="20605" spn_display_rule="SPN_RULE_SHOW_SPN" fake_home_on="20610"/>
<spnOverride numeric="20601" imsi_subset="889" spn_display_rule="SPN_RULE_SHOW_SPN" fake_roaming_on="20601"/>

<!-- Netherlands - Telfort and KPN -->
<spnOverride numeric="20412" fake_home_on="20408,20410" />

<!-- France Vodafone - Vodafone Femto cell -->
<spnOverride numeric="20810" fake_home_on="20811"/>

<!-- SpainTelefonica - Tuenti and 21407 -->
<spnOverride numeric="21405" fake_home_on="21407"/>

<!-- LTN [latin_protocol] -->
<spnOverride numeric="72410" fake_home_on="72410,72411,72406,72423"/>
<spnOverride numeric="72411" fake_home_on="72410,72411,72406,72423"/>
<spnOverride numeric="72406" fake_home_on="72410,72411,72406,72423"/>
<spnOverride numeric="72423" fake_home_on="72410,72411,72406,72423"/>
<spnOverride numeric="72432" fake_home_on="72432,72433,72434"/>
<spnOverride numeric="72433" fake_home_on="72432,72433,72434"/>
<spnOverride numeric="72434" fake_home_on="72432,72433,72434"/>
<spnOverride numeric="73001" fake_home_on="73001,73010"/>
<spnOverride numeric="73010" fake_home_on="73001,73010"/>
<spnOverride numeric="71201" fake_home_on="71201,71202"/>
<spnOverride numeric="71202" fake_home_on="71201,71202"/>
<spnOverride numeric="732103" fake_home_on="732103,732111"/>
<spnOverride numeric="732111" fake_home_on="732103,732111"/>
<spnOverride numeric="73401" fake_home_on="73401,73402,73403"/>
<spnOverride numeric="73402" fake_home_on="73401,73402,73403"/>
<spnOverride numeric="73403" fake_home_on="73401,73402,73403"/>

<spnOverride numeric="338050" fake_home_on="33805,338050"/>
<spnOverride numeric="33805" fake_home_on="33805,338050"/>
<spnOverride numeric="73007" fake_home_on="73002"/>
<spnOverride numeric="73008" fake_home_on="73002"/>

<!-- SEAU Austrailia -->
<spnOverride numeric="50502" imsi_subset="9" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="50502"/>

<!-- South Africa -->
<spnOverride numeric="65507" imsi_subset="10" spn_display_rule="SPN_RULE_SHOW_SPN" spn="Virgin" spn_override_only_on="655"/> <!-- Virgin is roaming on 'Cell C' network (same mcc-mnc) and this display rule for home country -->
<spnOverride numeric="65507" imsi_subset="13" spn_display_rule="SPN_RULE_SHOW_SPN" spn="Red Bull Mobile" spn_override_only_on="655"/>
<spnOverride numeric="65507" spn_display_rule="SPN_RULE_SHOW_SPN" spn="Cell C"/>
<spnOverride numeric="65502" spn_display_rule="SPN_RULE_SHOW_SPN" spn="8.ta"/>

<!-- H3G RM#2022-->
<spnOverride numeric="23420" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="23420,23433" fake_home_on="23420,23433" />

<!-- TDC Sweden -->
<spnOverride numeric="23801" imsi_subset="72" fake_home_on="24005,24007" fake_roaming_on="23801" />
<spnOverride numeric="24014" imsi_subset="72" fake_home_on="24005,24007" fake_roaming_on="23801" />

<spnOverride numeric="24004" spn_display_rule="SPN_RULE_SHOW_SPN" fake_home_on="24008,24024"/>
<spnOverride numeric="24008" spn_display_rule="SPN_RULE_SHOW_SPN" fake_home_on="24004,24024"/>
<spnOverride numeric="24024" spn_display_rule="SPN_RULE_SHOW_SPN" fake_home_on="24004,24008"/>

<!-- TDC Norway -->
<spnOverride numeric="23801" imsi_subset="71" fake_home_on="24201" fake_roaming_on="23801" />
<spnOverride numeric="24208" imsi_subset="71" fake_home_on="24201" fake_roaming_on="23801" />

<!-- TDC Finland -->
<spnOverride numeric="24412" imsi_subset="2400" fake_home_on="24412" fake_roaming_on="23801" />
<spnOverride numeric="23801" imsi_subset="7300" fake_home_on="24412" fake_roaming_on="23801" />
<spnOverride numeric="23211" fake_home_on="23201"/> <!-- bob @ A1 network -->
<spnOverride numeric="23212" fake_home_on="23205"/> <!-- yesss! @ Orange AT -->
<spnOverride numeric="23207" fake_home_on="23203"/> <!-- tele.ring @ T-Mobile A -->
<spnOverride numeric="23207" fake_home_on="23203"/> <!-- tele.ring @ T-Mobile A -->
<spnOverride numeric="23430,23431,23432" fake_home_on="23433,23434"/> <!-- T-Mobile @ Orange Network -->
<spnOverride numeric="23433,23434" fake_home_on="23430,23431,23432"/> <!-- Orange Network @ T-Mobile -->
<spnOverride numeric="23210" fake_home_on="23201"/> <!-- H3G Network -->

<!-- South Africa -->
<spnOverride numeric="65507" spn_display_rule="SPN_RULE_SHOW_SPN" spn="Cell C"/>
<spnOverride numeric="65502" spn_display_rule="SPN_RULE_SHOW_SPN" spn="8.ta"/>

<!-- Everything Everywhere -->
<spnOverride numeric="23430" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="23430,23431,23432,23433,23434,23486"/>
<spnOverride numeric="23431" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="23430,23431,23432,23433,23434,23486"/>
<spnOverride numeric="23432" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="23430,23431,23432,23433,23434,23486"/>
<spnOverride numeric="23433" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="23430,23431,23432,23433,23434,23486"/>
<spnOverride numeric="23434" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="23430,23431,23432,23433,23434,23486"/>
<spnOverride numeric="23486" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="23430,23431,23432,23433,23434,23486"/>

<!-- Philippine -->
<spnOverride numeric="51518" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="51503"/> <!--red mobile -->

<!-- Indonesia -->
<spnOverride numeric="51008" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="51008"/> <!--AXIS -->

<!-- Poland -->
<spnOverride numeric="26006" spn_display_rule="SPN_RULE_SHOW_SPN" spn_override_only_on="26001,26003"/>

<!-- Israel -->
<spnOverride numeric="42507" fake_home_on="42503"/> <!-- MIR @ PCL network -->

<!-- PAN -->
<spnOverride numeric="21601" spn_display_rule="SPN_RULE_SHOW_PLMN" spn_override_only_on="21601"/>

</spnOverrides>