TTGO T-Beam debugging with ESP-Prog - Pins?

Advanced Solutions Debugging
1

Standard JTAG pins are GPIO15, GPIO12, GPIO13, GPIO14.
However GPIO12 and GPIO15 are used for the GPS-Module.
Is there a setup that allows JTAG debugging with the ESP-Prog?
ThX Tom

2

If you used JTAG pins for other needs, debugging is impossible.