kamilsss655 (Nunu)
patreon
TK11 - "OPEN" variant
🕑 Added 2025-08-05 10:56:04 +0000 UTCI've received the 'OPEN' variant of the TK11. The Quansheng sales representative is very friendly and professional. Even though they didn't have to, they paid the customs fee that was added during shipment.
So far, I've noticed that the device has an 'OPEN' imprint on the back of the enclosure. After a brief inspection, it looks like the firmware bugs I encountered in earlier versions (e.g., issues with step size, etc.) are gone, which is certainly a step in the right direction.
As far as I understand, the 'OPEN' variant is supposed to differ from previous versions in that it features an unencrypted CPU, which should support third-party firmware. I attempted to open the device to check if the CPU is a different model, but I was unable to remove the volume knob. Despite heating it and applying force, the knob wouldn’t come off, unlike in many TK11 teardown videos. It seems that the volume knob might have been glued in the units I've received.
I followed up with the Quansheng sales representative regarding some questions about the electrical schematics, hardware differences, etc. I’ll keep you posted once I know more!
Comments
kamilsss655
Based on Quansheng reply it appears that "OPEN" variant still use AP8048 CPU. The hardware is the same. The only difference is that CPU is not encrypted. I am still waiting for the feedback regarding schematics/code.
Dan H
I'm interested to hear if the new version allows you more firmware overhead for additional functionality. Please do keep us posted on what you find out!
