Answer to: My surface screen was broken. How much pay.This is a self repair forum, and thus not the right place to ask this question.
Answer to: Why error show card cannot create?Does the card have a write lock on it? Most SD cards come with a Write lock now, this is enabled by a small plastic slider on the card itself. please make sure that is not enabled. (http://kb.sandisk.com/euf/assets/images/...)
Answer to: How can I repair a door closer that doesn't damp any more?Hi Guido, There are multiple ways that your issue arises, And thus there are multiple steps to fix this issue. My first suggestion would be to see if the system can be tightened through conventional means. this can usually be done by tightening the screw on the side of the main enclosure (Usually on the right). It may be that you only have a disc with two holes for a tool, but turning that clockwise should tighten the spring. Another option is to see if the top bar can be adjusted, but I personally recommend against this action. Please let me know if I can assist you further.
Answer to: Smart key doesnt unlock doors.Hey Angela, Most likely scenario is the battery having run dry. I've had to replace the battery of the fob on quite a few keys. I'd love to help you out on the exact SmartKey, but Merc has changed these quite a few time. There should be a small break in the plastic that you can fit a flat scewdriver in, twisting the driver should open the fob and you can see the type of battery required. pop in the replacement and press the fob closed again. Good as new :)