GDMIC Rewritable Keyfobs

GDMIC Rewritable Keyfobs With Scrolling Code Anti-Copy For Elevator 

GDM card is a dedicated scrolling code chip that solves the problem of most resettable scrolling code access cards, elevator cards, and GTU cards not being able to be opened, and the price is favourable. Please use GDMIC for scrolling codes, as it has the function of repeated erasing.

Note:
The card can be rewriteable many times, but the master card cannot be flashed. If the master card is flashed, the data will be updated, causing the copy card data unable to synchronise, resulting in an invalid.

Instructions for use

1. Take the original card and ask the property management to reissue it for activation. Remember not to swipe the card after activation,
2. Place the activated original card on an ICOPY-X10, ICOPY Cloud Rhino, PM-PRO, or Honey Badger machine to read and decrypt,
3. After reading and decrypting, write as many as needed to the GDM card.