Hello guys!! Progman voltage problem

[besust]

hi guys . i recently join this club.

i got e39 530i 2001.

i recently bought a obd cable for bmw on Ebay.
so i got dis v57 and sss v32 progman. both work fine on my car

but i have one problem with the progman. when i connect to vehicle. it works. but some functions like coding, progamming, then it requires at least 13v. but mine shows 12.4v.

i contact the seller he said he already patched a changes.iso but i guess that file work on only later models. ithink.

so please help me out here.

someone who has changes.iso or other file work on 2001 530i. please

give me a instructions .cuz i don't know how to apply that iso files....

thanks..