羅列了基本的位置更新失敗的原因，對(duì)新手很有幫助，老板凳就不用下載了。
# 2:(IMSI unknown in HLR);
# 3:(Illegal MS); or
# 6:(Illegal ME).
The mobile station shall set the update status to ROAMING NOT ALLOWED (and store it in the SIM according to subclause 4.1.2.2), and delete any TMSI, stored LAI and ciphering key sequence number and shall consider the SIM as invalid for non-GPRS services until switch-off or the SIM is removed.
# 11:(PLMN not allowed);
The mobile station shall delete any LAI, TMSI and ciphering key sequence number stored in the SIM, reset the attempt counter, set the update status to ROAMING NOT ALLOWED (and store it in the SIM according to subclause 4.1.2.2). The mobile station shall store the PLMN identity in the "forbidden PLMN list".
The MS shall perform a PLMN selection when back to the MM IDLE state according to 3GPP TS 23.122 [14].
# 12:(Location Area not allowed);
The mobile station shall delete any LAI, TMSI and ciphering key sequence number stored in the SIM, reset the attempt counter, set the update status to ROAMING NOT ALLOWED (and store it in the SIM according to subclause 4.1.2.2).
The mobile station shall store the LAI in the list of "forbidden location areas for regional provision of service".
The MS shall perform a cell selection when back to the MM IDLE state according to 3GPP TS 43.022 and 3GPP TS 25.304.
# 13:(Roaming not allowed in this location area).
The mobile station shall reset the attempt counter, set the update status to ROAMING NOT ALLOWED (and store it in the SIM according to clause 4.1.2.2).
The mobile station shall store the LAI in the list of "forbidden location areas for roaming".
The mobile station shall perform a PLMN selection instead of a cell selection when back to the MM IDLE state according to 3GPP TS 23.122 [14].
# 15:(No Suitable Cells In Location Area).
The mobile station shall reset the attempt counter, set the update status to ROAMING NOT ALLOWED (and store it in the SIM according to clause 4.1.2.2).
The mobile station shall store the LAI in the list of "forbidden location areas for roaming".
The mobile station shall search for a suitable cell in another location area in the same PLMN according to 3GPP TS 43.022 and 3GPP TS 25.304.