Android only installs an update signed by the same key as the version already on your device. This timeline shows every signing key we've seen for Solid: USDC Savings & Card. One known signing key across every release we hold.
2.0.0
Current key1 release · Aug 13, 2026Every key we have ever recorded for Solid: USDC Savings & Card. New builds are compared against this set; a build signed by none of them is what our badge calls a mismatch.
Tangem - Hardware Wallet
Tangem · Finance
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