1. Check the status of BTS Software in the BTS using the following command:

ZEWO:;

2. To download new SW in the BTS at first the NW must be vacant. If there is any

SW in the NW it has to be deleted to make room for the new SW package. Use the

following command:

ZEWE: ::NW;

If the NW status is already vacant then go to Step-3 directly.

3. To attach the SW to the BTS, run the following commands:

ZEWL; % Shows the list of BTS SW available in the BSC %

ZEWA::; % Download the software to the BTS %

e.g. ZEWA:2: FLEXI_EX42_PP02;

It will take around 2.5 Hrs for the SW to be downloaded in the BTS. We can use the

below mentioned command to check the status:

ZEWI:;

4. After the SW is downloaded then we have to the toggle the SW position status in

the BTS:

ZEWH:1:ST1=BU,ST2=NW,; % Toggle the position of SW between NW & BU %

ZEWH:1:ST1=NW,ST2=FB,; % Toggle the position of SW between NW & FB %

5. After the position of the newly downloaded SW is moved to the BU state, the

following command is used to tell the BTS to restart with the new SW:

ZEWV::BU:;

e.g. ZEWV:12:BU;

Press Y shown above to confirm execution of the command. It will take around 5

mins for the site to restore itself.

6. After the site is restored check using Step-1 whether the site is running with the

updated SW and then go to Step-2 for removing any SW in the NW state.