Factory Fastboot Cable by N2A (R) - Fix/Repair Kindle Fire, Kindle Fire HD, Kindle Fire HDX, Motorola Xoom & Phones Compatibility: *** DOES NOT WORK FOR THE CURRENT KINDLE FIRE HD AND THE HDX. ****Kindle Fire/Kindle Fire HD/Xoom/Atrix/Droid X/Droid 2/Droid 2 Global/Droid Pro/Droid Pro Global/Droid 1/V9m/Napoleon/Droid Charge/Droid Razr/Droid Bionic/Droid 3 For Kindle Fire: Boot up your computer to Windows Turn off the Kindle Fire Plug cable into Kindle Fire Plug into USB Port of the computer The Kindle Fire unit if not on already will have turned on again. Press and Hold the Power button for 20 seconds (past the do you want to turn off prompt). The device will go dark. Press the power button once and let go. The device will turn on and it will stop at the Kindle Fire Triangle ( This is in the Fastboot Mode) If you check your devices, it should say under Android Phone Android ADB Interface Using Kindle Fire Utility and TWRP Recovery to restore your rom For Motorola Devices: XOOM Series: Power off your XOOM completely Press volume down key + plug in MOTO FACTORY CABLE with PC. If screen shows fastboot protocol,release volume down. Type below command in CMD window.fastboot oem unlock If result is failed.retry step until screen shows unlock. And then, You can reflash image for your XOOM. step 2 you can use normal cable + power key to replace "plug in MOTO FACTORY", if can not work, you should buy this MOTO FACTORY CABLE. RAZR Series: most case is battery low in black screen. Power off your RAZR completely. Press volume down key + plug in MOTO FACTORY CABLE with PC. if screen shows ENTER AP MODE+ DATA CABLE OK, release volume down. install the moto helper driver for your device. open moto RSD tool and select your image xxxx.xml in fastboot mode. if you finished all step. you phone will enter OS. For Any other MOTO cases: The cable can force charge your moto phone in battery empty condition. but only use PC to charge. Another function is force boot up, the function can check phone status. such as phone hardware issue or battery issue. Warnings: Don't leave the cable connected to the phone while unattended. Although the cable should not be recognized by the phone for charging purposes, it is supplying operating power to the phone via its USB port (which is not normally the case). If you are using the cable with no battery in the phone, and if your host computer lost power or shut down, your phone would instantly lose power just like a battery pull had happened. Connect the Micro-B end to the phone first, and then connect the USB A end to the computer. The Micro-B connector is very tiny and we want to make sure it is in the phone straight and seated before you apply power to it by connecting it to the computer. Connecting the Micro-B end first protects your phone and your computer. When working on the phone with the cable connected and no battery inside, best to go ahead and put the back cover back on so you don't lay it down on something that touches some contacts in the battery compartment. If you're working on a proper (uncluttered) workbench and you're the careful type, this may not be necessary, but better safe than sorry. Don't plug this cable into any device not designed for it. If plugged into a device not expecting this map you could destroy the device, your computer, or both. Cable length: about 95cm / 3 ft It has micro USB male and USB male connector