I have rooted my kindle fire and installed twrp and fff using kindle fire utility. With twrp I flash a jelly bean rom and now i am wanting to go back to how my kindle was out of the box. so i got an update off the internet and downloaded it to my kindle, but when i rebooted my kindle it didnt go into fff. i am just wondering is there any other way to install roms on the kindle since i cannot get into twrp. also tried to reinstall twrp and fff on kindle fire utility but it says adb status offline and will not change. please help!
Your problem, besides not having a clue what you're doing, is you didn't wipe the necessary partitions before trying to install a new ROM. Most of the time, that results in sort of a Frankenstein of an OS that the system cannot boot normally.
Typically, with FFF installed, you can tell pretty easily what mode your device is in by looking looking at your screen. If the device hangs at the boot screen, you know it is in fastboot, or if it continues on to the boot animation, you know it's in normal mode. With the stock Kindle Fire software installed, both the bootloader's splash screen and the boot animation are the same (with the exception of brightness), so you have to use the adb to determine what state the device is in. In your case, the device is in normal boot mode, so the typical "fix" for "stuck at kindle fire logo" wouldn't apply to you.
Unfortunately, by reinstalling the Kindle Fire update.zip, you also overwrite not only the custom bootloader, but custom recovery as well, which is required to fix your problem. Reverting back to stock, simply to re-root or install a different ROM is unnecessary and a complete waste of time. Now you have to get back into fastboot mode so you can reinstall custom recovery, wipe the necessary partitions and reinstall a ROM.
If any of this sounds foreign to you, it's because you're in WAY over your head. Before you go any further, educate yourself in how and why the Kindle Fire/Android works. Doing so will greatly increase your chances of success and decrease the chances of finding yourself in another situation like this one.
http://forum.xda-developers.com/showpost.php?p=23747567
first three posts
http://forum.xda-developers.com/showpost.php?p=25730650
first two posts
http://forum.xda-developers.com/showpost.php?p=26435498