Default [TUT]Getting out of any bootloop

I hate bootlooping, and almost every week I encounter some sort of terrible bootloop, due to modding and whatnot. If you haven't made a nandroid backup (that is so careless of you), then there is still hope, just as long as you have a rom (and gapps if necessary) in your external sd card.
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How to recover from bootloop if you don't have a nandroid
Step 1: Pulling out the battery for about 10 seconds or more, and then putting your battery back in
Step 2: Booting into recovery mode using your hardware keys (every phone/tablet is different)
Step 3: Formatting system partition (very important), and factory resetting right after that (also important)
Step 4: Installing your rom and gapps

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There you go! Post your questions or concerns here.

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My works:

Install apps by default to external storage on ace 2x or any other phone

Get out of ANY bootloop without nandroid backup
My devices:

Nexus 7 (grouper) (rooted)
Ace 2x (GT-S7560M) (rooted)
Nokia 1661 (former)