2G (GTMU Card) Upgrade from SP186 to SP255 Problem (Plz Help)

Hello my name is Mario and I work in Vodafone Greece. Recenty Vodafone upgrade all huawei systems running the SP186 to SP255.

I have a problem on my GTMU card in my Lab. I upgraded my GTMU but I can't log in after that. I tried to connect with BTSM from SP185 and with BTSM from SP255. Plz somebody help. It tells my that i have wrong password or admin name. I am using the admin and password from the SP185. Plz help

Maybe there was a change of IP , kindly check the manual. For example: WMPT IP is 192.168.0.49 but when you upgrade it with 255 it can be access with 17.21.2.15.

Could you share with me the BTSM software please? Thanks.