However, for normal users: upgrading to or Evilnat 4.90 will instantly make the stock BLES01834 work without any EBOOT patching. The "3.55 fix" is purely for enthusiasts stuck on that specific firmware.
For the average user,
Confirm "Yes" when prompted by your file manager to overwrite the existing file. Step 4: Clear Game Cache and Boot bles01834 tomb raider ps3 3-55 fix