Flashing the factory firmware with Dick and Jane.
First thing we need to do is decide where you are going to do this. I recommend doing it in the bedroom where there are a lot of soft things like pillows and comforters so if you get frustrated and throw the phone, it has someplace soft to land. Oh, and no hammers in the room either.
Now we need to allot the time necessary to do this. I can do this in a little under an hour, but you’ll want to take things slow so give it two. And, if you have a lot of apps installed, you have to give it time afterwards for downloading and re-installing.
These are the things you are going to need:
- The internet. Pretty obvious, but I just want to be thorough. It’s for getting all the stuff that comes next.
- Drivers for the device so the PC can talk to it. Go get the Google drivers. Never had a problem with them. And if you have drivers installed now, they’ll need to go. (Don’t worry, I’ll cover that in detail too.)
- You’ll need fastboot which is the utility that does the flashing. I always wanted to call it “trench coat”, but fastboot will have to do. You will need the latest so I’d recommend getting the Mini-SDK which will get you just where you need to be.
- You will need the factory firmware and a utility to verify it’s integrity.
- You will need a good quality USB cable.
- A martini wouldn’t be a bad idea either.

You’ll also need to know how to read, how to type and how to follow instructions. Knowing how to make a really dry martini can come in handy, too.
First step: Go get your stuff.
Google Drivers.
Mini-SDK
Firmware. You'll want to find the latest firmware for your phone. The Nexus 6 is "Shamu", the N5 is "Hammerhead", the N4 is "occam" and so on. Right-click the link that says "link" and save target as whatever long impossible-to-remember file name that pops up.
WinMD5 (Utility to verify the MD5 checksum)
Save it all into the same folder. For ease of typing, make a folder under your C: volume called “stuff”. You can press the Windows key + E and double-click on your C: volume. Then in the empty space right-click your mouse and select NEW>FOLDER … name it “stuff” (No quotes, but you knew that, right?) Or, if you want to be really geeky and impress your wife, press the Windows key + R. A run box opens and you type “cmd” (no quotes … I’ll tell you when you need quotes). Then a DOS prompt opens in a black window that looks into the soul of your PC and give you the power of God … okay, maybe not God, but a really nerdy Saint. Is there a Saint Poindexter? Because that would be him. Now with one command you do all the work of the clicks.
Type this:
and then press ENTER. Did you just get the urge to buy a pocket protector? Yeah, it can do that.
Got it all? Good.
Step B: No, wait. I was doing numbers. Better make that Step 2, but don’t confuse it with a 2-step. It’s not time to dance yet.
Backup your phone.
The thing is, one of the very first things we do is going to wipe your phone back to the Stone Age. Okay, a factory reset isn’t technically the Stone Age, it’s just a figure of speech. When you unlock the bootloader, it wipes everything. It’s a security thing. Already got your bootloader unlocked? Backup anyway. The firmware flash will wipey-wipey too.
Of course copy your files like pictures and music. Make sure you got it all, because it might all go bye-bye. Next you’ll want your email and text messages. Email really depends on how you have your accounts setup. If it’s IMAP, then fuggedaboudit … it’s on the server, not your phone. (Gmail is imap … sorta) If it’s POP3, you’ll need to copy the messages you want to keep to files or forward them to an account for retrieval later. Backup your text messages using
SMS Backup & Restore. It will create an .xml file with your messages that you can put back once flashed. Copy that file, along with everything else to your PC.
If you use a launcher like Nova or Apex, you can back up launcher data and settings so that once you got the phone flashed you can restore your home screens just the way you have it now.
Any settings you might not remember like email server config’s, write them down, you’ll need to set them back up.
All Backed up now? Great! Now go put a martini glass on ice. We’re getting ready for the fun part.
… to be continued