XI have seen some comments, from customers of these FBS3 smart keys. Can we unlock and reused these aftermarket smart keys, if they the keyless fails? And is there a differences between Xhorse and cgdi?
Look at the table below:
FBS3 Smart key Xhorse VS FBS3 Smart key CG MB
| Item No. | FBS3 Smart key Xhorse | FBS3 Smart key CG MB | 
| Image |  |  | 
| Manufacturer | XHORSE | By CGDI | 
| Full Smart | Full Smart | Full Smart | 
| Frequency | 433Mhz/315Mhz | 315Mhz | 
| Allow set the frequency between 315MHz and 433MHz | Support. The method: 1. in vvdi mb software (update software to latest version)…look at the image. 2. manually by soldering / desoldering the FRE resistor (marked red in picture Here) | Not support | 
| Can be renewed | Yes | Yes | 
| How many times can it be erased? | No limit | No limit | 
| How to erase the key | The key supports erasing by infrared repeatedly (vvdi mb) | 1). Manual Reset a. First press the Trunk button b. Then press the LOCK button until the key indicator keeps turning on c. Wait for 1 second, Press the UNLOCK button until the key indicator flashes twice. d. Key has been erased successfully 2) Renew via CGDI MB | 
| Workable car models | W204, W207, W212, W164, W166, W221 BGA Key(the FBS3 models after 2010) | W221-S series, W216-S series, W164-ML series, W251-R series, W166-ML series, W164-GL series, 207 C Series, 204 C Series, 212 E series (the FBS3 models after 2009) | 
| Workable Device | VVDI MB,CGDI MB | multi Benz key programmers: VVDI MB, CGDI MB, AVDI etc. | 
| Workable key type | BGA -76/78 | BGA -76/78 | 
| Update | Yes, can update. | Yes, can update. | 
Review:
The regular xhorse fbs3 key, to swapp 315mhz and 433mhz.
This is only possible using xhorse MB.
So they are not a 100% the same.
At least they are not with the same key is
I have cgdi tool, and acces to vvdi mb.
So I Will order xhorse smart Keys,
Enjoy!
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