hi im from Qatar. i have a Trimble 5503 instrument. after a month of not using, it stop working, the ACU is not connecting to the instrument. some peo...

@firestix thanks. right now im here in qatar

@hvac can you please make a video or step by step process for us non tech people so we can follow how if you have time thank you

@alexyangtw how to back up firmware of trimble 5503 please.

hi, any update on this topic, mine also a trimble 5503, the acu is stuck on connecting to total station, i think my instrument internal battery also w...

@olemanriver i try the service center but they refuse to look at it, they say the support has been terminated long ago. they are more interested on co...