How to tranfer waypoint from 1871F to 1871F

[linhkienbodam]

Hi,
My Furuno 1871F screen is broken and I buoght a used good working condion one for replacement. The old one has many important waypoints for my fishing boat. How's to tranfer all waypoints from the old to the new GP1871F. Thank you
Nick

 

[Johnny Electron]

Normally you would use the micro SD card that you have been maintaining your back-ups on, to import the data into the newer unit. If backups were not done and the old unit is functional enough to save your points to micro SD, then you would follow the same process to backup and then restore to the newer unit. If the old unit isn't functional, then it might be a bit too late to do a backup.