As with most of the stuff I have posted I just use my search-fu and then bring it here for ease of use. I dont take credit for the information only its compliation here.
The Force Unleashed Holocron locations (source:
Link)
TIE Factory - 15 holocrons1. TIE Hangar. One of the second level walkways has this easy one. Double jump from the sloped supports on the ground to get there.
2. TIE Hangar. This is on the middle walkway. the one above the center TIE launch rail. Use the tail fin of the crashed shuttle to get the height you need.
3. Corridor to flight tower. Shortly leaving the TIE hangar, you encounter two sets of doors you can Force Push (employ DMM) right next to one another. A look at your mini-map shows that one door is essentially a dead end. That's the one with the holocron you want. If Juno contacts you about a TIE squadron being scrambled, you've gone too far ahead.
4. Flight tower. The lower level of the flight tower has a holocron buried amidst the cargo crates. Check the area around the central tower (and the lift that takes you up one level) for the goodie. Can't miss a giant floating bullion cube that glows in the dark.
5. Flight tower. The upper level. After taking the lift, one door leads to the control room area, the other to a platform leading nowhere. Opt for the dead and examine cargo boxes for the holocron.
6. Flight tower, upper gantry. Having taken the lift to the upper gantry, (and fetched #4 and #5), you'll cross over a second broken bridge to leave this zone. There is a holocron from where the enemy spawns (monster closet) just past the break in the bridge.
7. Wing Assembly (moving). The upper catwalk of this zone has an easily seen holocron.
8. Wing Assembly (moving). Above the small control room of this zone. Again, easily seen if you move high enough (using the lift).
9. Wing Assembly (broken). Atop one of the many bent TIE wings in this zone.
10. Wing Assembly (broken). On the highest catwalk, above the exit from this zone. You will need to employ Force Grip to insert at least one TIE wing from the floor into one of the wing support slots to be able to cover that double jump distance.
11. ****pit assembly. Before you reach the laser field in this zone, there are some enemy spawn rooms lining the sides of the bottom level. Check out the ones in the middle (halfway between the save point and the laser field) for a holocron.
12. ****pit assembly. Disable the laser field midway through the ****pit assembly zone. There is one holocron hidden amidst the power coils in the laser field generator's room.
13. ****pit assembly. Disable the laser field midway through the ****pit assembly zone. There is one holocron in one of the monster closets in the laser field generator's room.
14. ****pit assembly. Past the laser field, the second half of the assembly zone has more enemy spawn rooms on the lower level of the assembly line. Like #11, check those small rooms for this holocron.
15. ****pit assembly. Right by the exit ramp from this zone. If Juno chats about Kota being "right above you", you've gone too far ahead.