Phone Unlocking t-mobile web n walk e170 dongle

I have one of the above dongles which i have unlocked and flashed in the past and put mobile partner on it
i am trying to put it back to its original firmware as i want tu use it in a lm009 pocket router but im fooked if i can remember how i done it in the first place.
i have the unlock code the flash code and imei number. i have tried updating it but it still keeps mobile partner on it
any help appreciated

Can;t remember? It's an age thing m8. If only we could pop new ram in our own heads, we'd be sorted! Can't you download original f/w from T-mobile?

i've been trying to do this since last Sunday. The problem I've got is the programs i have got are to unlock the dongle first before you flash it, but that has already been done so i just keep getting error code. i have tried on t mobiles site but there hopeless but just found it there in someone's blog so going to have another go lol

got the web n walk dashboard onto it but when i try to unlock it it says there is pin on sim aaaaaaarrrrrrrrgggggggggggggg

is it possible to take firmware from one dongle and put it on another if so how do you do it