Collection: Upgrade Dongle

Firmware Update | Maintain Compatibility with Latest iOS

Ensure uninterrupted carrier freedom with our professional RSIM firmware upgrade service. As Apple releases new iOS updates, your existing RSIM unlock solution (including MKSD, Heicard, Wellsim and other major brands) may require critical firmware updates to maintain full functionality.

Key Benefits of Our RSIM Firmware Upgrade:

✔Latest iOS Compatibility- Keep your unlock working through iOS updates.
✔Universal RSIM Support- Works with all major chip brands (MKSD/Heicard/Wellsim).
✔Seamless Performance- Maintain stable network connectivity.
✔Future-Proof Solution- Regular firmware updates available.
✔Easy Installation- Simple process with detailed instructions.

Why Update Your RSIM Firmware?

✔Prevent losing unlock capabilities after iOS updates.
✔Fix existing connectivity issues.
✔Ensure optimal performance with your carrier.
✔Support for newest iPhone models.

Professional RSIM Firmware Upgrade Service Includes:

✔Latest firmware files for all supported models.
✔Step-by-step installation guide.
✔Technical support assistance.
✔Future update notifications.