Script "KIOffsetAdjust" for 2602

i have updated the firmware from version 1.1.4 to 1.4.2. now the offset in the 100mV range is about 35mV. the documentation mentions an adjustment with the script KIOffsetAdjust. unfortunately i cannot find this script. it is not available on the device and not in the TSB software. Can I download this script somewhere?

Hello,
This script is only for 2636/2635 model to adjust offset current after upgrading 1.4.2 from 1.3.x. The model 2636 has more current ranges in the lower side than 2602. This script is only for the lower range adjustment. So, the script cannot be applicable for 2602 model. If you upgrade 2636, then the script is installed in the instrument but no script for 2602. I think your unit- with 35% offset uncertainty, needs to go to the service team to perform calibration. The Model 2602 is a very old unit, and we are not supporting it in service. But it is confirmed from our service team that we have calibration service only for the 2602.
See link below to help you start this process (US ONLY link attached, see Calibration & Services section on tek.com if out of US).
Service Quote | Tektronix