Solution : https://service.sap.com/sap/support/notes/758629 (SAP Service marketplace login required)
Key words : 
unicode systems675487 - business partners notes exchange - unicode compliance729792 - wrong data, survey data exchange crm-->cdb758626 - survey template - dataexchange, unicode system758575 - mobile bridge - survey dataexchange, unicode system752534 - sales transactions condition dataexchange, xml format755983 - bw workbooks msa, unicode system758704 - sales transactions condition, terms mobile bridge notes, solution 730988 - data exchange error, long text data exchange, unicode system761134 - unicode handling
Related Notes : 
       
| 902083 | Unicode Collection Note for CRM 4.0 | 
| 720361 | |
| 716052 | Middleware HOTFIX for Mobile Clients: CRM 4.0 SP00 - SP07 |