If you are reading this, you have likely encountered a frustrating error code on your device’s display: F3311 Lock Remove FTF. This is not a standard Windows or Mac error; it is a specific hardware-level fault code typically associated with Multifunction Printers (MFPs), specifically Kyocera or TA Triumph-Adler devices, or advanced security firmware on HP LaserJet Enterprise models.
The acronym "FTF" stands for "Fail To Feed," and "Lock Remove" refers to the fuser unit's pressure release mechanism. In simple terms: Your printer’s fuser (the hot roller that melts toner onto paper) is stuck in a locked position, or the sensor cannot verify that the fuser is correctly installed and unlocked.
This 3,000+ word guide will walk you through what this error means, why it happens, and the exact step-by-step process to remove the F3311 lock and fix the FTF error.
Before removing anything, you must understand the mechanical relationship between the locking block and the feed ramp. f3311 lock remove ftf
In short-recoil operated pistols (like the Taurus G series, Sig Sauer P320, or Glock), the locking block sits inside the frame just above the trigger. It serves two purposes:
When a locking block (especially one stamped F3311 in certain Taurus pistols) is out of specification, you will experience three classic FTF symptoms:
The most notorious issue with the F3311 lock is insufficient height or incorrect angle of the built-in feed ramp. If the locking block’s feed ramp is too low, the bullet’s ogive (nose) will collide with the flat face of the block – resulting in a classic FTF. If you are reading this, you have likely
After completing the removal and either polishing, modifying, or replacing the F3311 lock:
Before blaming the locking block, rule out these common FTF culprits:
| Issue | Solution | |-------|----------| | Magazine springs weak | Replace magazine springs. | | Extractor tension too high | Slightly loosen or replace extractor. | | Ammunition out of spec (OAL too long) | Switch to factory recommended ammo (115gr FMJ for break-in). | | Dirty chamber | Deep clean chamber with a bronze brush. | When a locking block (especially one stamped F3311
Only after ruling these out should you focus on the "f3311 lock remove ftf" procedure.
Aftermarket enhanced locking blocks range from $25 to $50. OEM Taurus blocks are typically $15–$20. Given the known FTF issues with OEM F3311 blocks, the aftermarket option is worth the premium.
If you are locked out due to FRP (Google Lock) and do not want to flash FTF files, you can try the standard bypass method for Android 6.0 (Marshmallow), which is the native OS for the Xperia E5.
To ensure you never see "Lock Remove FTF" again, follow these three rules:
Now that the lock is released, inspect the nip (where the two rollers touch).