QUOTE (thepanda @ Jun 15 2008, 1:08 pm)

You might be able to download a manual if you log on to another English Language European Motorola site? If your exact model is exclusive to Germany, then it's possible that a manual from another "C" model may suffice.
UK siteIn your post however you mention about remaining balance, I could be wrong, but as far as I'm aware that is set by the service provider and you wouldn't get any info regarding this feature from the manufacturer's manual. You would have to check on the service provider's website.
To check your remaining balance on O2 Germany for example the short code is *101# then "call". (I've had O2 prepaid handsets in Ireland and Germany and the short code is the same for checking the remaining balance on both my Irish prepaid & my German prepaid, whereas other service providers in Ireland had different short codes to access this info. Vodafone in Ireland, for example, is *174#)
The phone includes functions that are apparently designed to give that information. However, since the phone was originally a 'locked' model, it may be that those functions only work with the SIM-card the phone was intended to be used with. (I had the phone unlocked so I could use a cheaper SIM-card.)
I think *101# works with my Motorola model. At least, a figure was returned (indicating my remaining balance). Whether accurate or not (again because of my using a non-standard SIM-card) I don't know.
The closest available model (to my C121) at the UK website appears to be the C139. The problem is I have no way of easily determining which C139 features are irrelevant for my model (i.e., were added in the C139 but did not exist in the C121). There doesn't seem to be a features comparison chart.
Thanks.