Xhorse XSMA4YEN MLB Key Failed to Change Frequency to 315Mhz?

April 28, 2026 VVDISHOP Xhorse Key Programmer 0

Problem:

Got the new Xhorse XSMA4YEN OEM-solution MLB key.

Try to update the frequency to 315mhz.

I can’t rewrite new firmware 315mhz.

Error remore burn failed.

Any solution?
Xhorse MLB XSMA4Y key 315mhz 1 Xhorse MLB XSMA4Y key 315mhz 2

Solution:

The new OEM-solution XSMA4Y MLB key does not allow change the frequency to 315Mhz.

It is 433Mhz in default.

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