Help [Request] 16-Digit NCK for SoyeaLink SRT873 (Snapdragon X55) - V4 Algorithm

[almamunsimul]

Hello Everyone,

I need help to calculate the 16-digit unlock code (NCK) for my SoyeaLink SRT873 router. I have already dumped the EFS and identified the V4 algorithm signature.

Device Details:

• Model: SoyeaLink SRT873
• Chipset: Qualcomm Snapdragon X55
• Algorithm: V4 (Verified from dump)
• EFS Offset: 1E61FD
• IMEI: 865881060370670
• Encrypted Hex (from offset 1E61FD): 08 8A 56 88 01 06 73 60 07 08 04 64 8D 00 00 00

Please help me to get the correct 16-digit code. Thank you in advance!

 

[almamunsimul]

"I found the V4 signature at offset 0039B56B. The preceding 16 bytes are CF 26 0C C2 EA 6B 97 A9 D3 A7 3F 30 31 C0 8B 12. Can anyone help me with the NCK calculation using this Salt?"