However, there were trade-offs:
ROM4GSM found its strongest audience in markets where dual-SIM, GSM-only (no CDMA) devices dominated—Southeast Asia, Eastern Europe, Africa, and South America. Devices like the , Spice Dream Uno , Gionee M2 , and various Chinese "no-name" MT6572/MT6582 phones were frequent beneficiaries.
The latter is where entered the picture. Manufacturers often locked devices to specific carriers (e.g., AT&T, Vodafone, Orange). Third-party developers began extracting, modifying, and redistributing these baseband ROMs to: