A: Absolutely. Unlocked devices work with all SIMs, including Jio. You lose nothing.
If you still want to explore, common methods people have tried (no guarantees): Unlock Jiofi M2s
Jio uses a SIM network lock (also called a subsidy lock). When you purchased the M2S, you likely paid a subsidized price (often ₹999–₹1,499) with the understanding that you would use only Jio SIMs for a certain period. A: Absolutely
The lock is enforced via firmware. When you insert a non-Jio SIM, the device displays an error message such as: Jio uses a SIM network lock (also called a subsidy lock)
Before you proceed, understand these risks:
A: Yes. That is the network lock message. You need an NCK code.