Error Didn 39-t Got Signature Okay Reply Got Reply Failfailed To Verify Cms ~upd~ Jun 2026

In code, configure CMSVerifier with setRevocationEnabled(false) (careful – only for test environments).

Allow flashing global firmwares on Docomo model Xperias · Issue #67 · munjeni/newflasher

Or extract certs:

: If your phone allows bootloader unlocking and you explicitly want to flash custom or cross-regional ROMs, you must unlock the bootloader first to bypass the CMS signature verification. A client posts a CMS signature and gets

: The Cryptographic Message Syntax (CMS) verification failed because the digital "handshake" between the file and the phone's hardware root of trust was unsuccessful.

A client posts a CMS signature and gets back JSON:

Also verify that the verifier’s policy does not require OCSP stapling if unavailable. Below are the most common technical causes

With the steps outlined in this guide, you can move from a cryptic failure message to a robust, verified CMS implementation.

The failure is not generic—it points to a specific step in CMS validation. Below are the most common technical causes.

This corresponds to the "got reply fail" message in a wrapper tool. Use -CAfile , -CApath , -crl_check , and ensure -content is correct for detached signatures. A client posts a CMS signature and gets

The firmware version or region (CDA) you are trying to install is not compatible with your specific hardware revision.

The error "Error didn't get signature OK reply, got reply fail – Failed to verify CMS" is a high-level symptom of a low-level cryptographic validation failure. It appears when a CMS signature is rejected due to certificate chain problems, content alterations, algorithm mismatches, or structural issues in the signed data.