MAM Not Working After Applying Support Package

We have been lived with MAM 2.5 with SP16 for almost a year now. We recently applied support package 19 for ABAP and J2EE stacks but MAM stopped working right after that. To fix the problem we had to do the following steps:

1. Disable all SyncBO

2. Regenate all SyncBO

3. Run Replicate Database

4. Enable all SyncBO

5. Delete MAM 2.5 client by WebConsole for all PDA (over 100 devices)

6. Re-Assign MAM 2.5 client back to PDA from WebConsole

My question is do we have to perform those steps above every time we are applying new support package? If it is a case, it's very time consuming because we have to manually perform step 5-6 for every users.

Does anyone have seen or experience this scenario before? Your comment is highly appreciated.

Regards,

Dai Ly