Fallout Shelter: Glitches and Cheats

Like many games there are a few exploits in this game which can give you an advantage in surviving in the Vault.  Here are a few glitches and cheats you can do.

Time Skip Cheat
This is a very basic cheat.  Fallout Shelter runs on a separate game clock than the clock on your phone.
To do this cheat follow these steps:
Step 1. Run Fallout Shelter and close out of the game.
Step 2. Go to the settings on your phone and access the date and time settings on your phone.
Step 3. Turn off Automatic date and time.
Step 4. Set the time forward one day. Back out and close the settings.
Step 5. Run Fallout Shelter Once again.
Step 6. Level up SPECIALs and characters.
Step 7. Rinse and repeat.

Now you will see that your characters that were training SPECIAL stats are now ready to level up.

Wonders that you have sent to the wasteland will also be one day out or one day closer if you had them recalled to the vault.

You will also receive your daily reward and you can cancel challenges you don't feel like completing.

*Warnings*
If you do this and turn on automatic date and time a few things will happen to your game.
1. Your resource rooms will now say 24hrs till it can be collect. This can be fixed by rushing the room. A successful room rush will set the time of the rooms back to the original time of collecting resources.
2. Dwellers training SPECIAL stats will stop training (time will not decrease). To fix this move the dweller to another SPECIAL training room and then move them back. They will start training again.
3. Any Dweller that you send into the wasteland will not start collecting resources until the automatic date and time matches up with the game time. SO BE CAREFUL

Negative Time Glitch
The negative time glitch tricks your game into thinking you have been out in the wasteland for an infinite number of hours, thus giving you a legendary withing minutes of sending a dweller into the wasteland.
To do this Glitch follow these steps:
1. Send one dweller into the wasteland and let him explore for at least 2 hours.
2. Now look through the dwellers log and note when they receive an item drop. (Notice the time because an item drop happens about once an hour, so your next item drop will be with in a 10 minute frame of that)
3. At 6 minutes before your explorer is due to receive a drop send up to 7 people out into the wasteland. (No need to give them Stimpacks since they will be done with their job in a couple of mins)
4. Once they are all making their way to the door, hit the settings tab and exit back to main menu.
5. Close out of the game and wait 10-15 minutes.
6. Run the game and see if you have a negative time event and a Legendary item.

The whole premise is to get a new dweller out a few minutes before the dweller who has been exploring for 2 or more hours gets their loot drop. (Once one gets a loot drop, all other explorers will get one as well)

The glitch will take some time to get, so keep at it and eventually you'll get a feel of when to send your dwellers out!