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[Q] How to update to 4.4.3 with root

OP UnfriendlyTurtle

22nd June 2014, 06:09 PM   |  #11  
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Quote:
Originally Posted by Aerowinder

Why don't you guys download the stock firmware from Google (link in my signature), and use fastboot to flash system.img, boot.img (DO NOT run the batch file)? If it's a lack of knowledge, all you need do is ask, and I or someone else would be happy to teach you how to use it (fastboot). If you're going to be modifying your Nexus device, you need to learn fastboot. You guys have got to learn the proper way to do things.

You've put forth so much effort to fix a system that is not meant for modified (rooted, customized) phones. You can't fix it, stop trying. Just do it the proper way. And do not use a toolkit. They don't teach you anything, they spoon-feed.

I don't use a toolkit and would be happy to flash the system.Img and boot.img but need instructions on how to do it. You said the stock firmware link is in your signature but it isn't.

I would like to skip 4.4.3 and go directly from 4.4.2 to 4.4.4. I'm talking about a nexus 7 2013 wifi.

So I need the following information to proceed .

1. The Link to download system.img and boot.img for the nexus 7 2013 wifi. Which files exactly?

2. I have fastboot and adb installed on my windows 7 laptop because I used them (once) to root but I don't remember how I used them that one time. How exactly do I use fastboot to flash 4.4.4 ?

3. I presume I will lose root. How do I regain it after the above.

Thank you.
22nd June 2014, 07:30 PM   |  #12  
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Quote:
Originally Posted by Anderson2

I don't use a toolkit and would be happy to flash the system.Img and boot.img but need instructions on how to do it. You said the stock firmware link is in your signature but it isn't.

I would like to skip 4.4.3 and go directly from 4.4.2 to 4.4.4. I'm talking about a nexus 7 2013 wifi.

So I need the following information to proceed .

1. The Link to download system.img and boot.img for the nexus 7 2013 wifi. Which files exactly?

2. I have fastboot and adb installed on my windows 7 laptop because I used them (once) to root but I don't remember how I used them that one time. How exactly do I use fastboot to flash 4.4.4 ?

3. I presume I will lose root. How do I regain it after the above.

Thank you.

1. The Google firmware link in my signature is the one you want. You say you have the 2013 wifi model, aka flo, aka razor. "Factory Images "razor" for Nexus 7 [2013] (Wi-Fi)" is the proper section for you. You want 4.4.4 (KTU84P), and that's at the bottom of the razor section. Click the link to download.

2. Download the most up to date ADB/Fastboot from the link in my signature (19.0.2 (API 19)). Don't extract it yet.

3. You will lose root. Download SuperSU from my signature. 2.00 is the current version. After you download that, you can put it on your device so you can flash it in recovery in a few minutes.

The firmware you downloaded is razor-ktu84p-factory-b1b2c0da.tgz. This is a compressed archive, and you will need to extract it. If you don't know how, 7-Zip should work.

So, you've extracted the files. Delete flash-all.bat, flash-all.sh, flash-base.sh (so you don't accidentally run them).

Now, all you have left is bootloader-flo-flo-04.02.img and image-razor-ktu84p.zip.

Extract image-razor-ktu84p.zip to the current directory, so you will now have bootloader-flo-flo-04.02.img, boot.img, cache.img, recovery.img, system.img, userdata.img, android-info.txt, image-razor-ktu84p.zip in your folder.

Delete userdata.img, flashing this on accident will wipe your data. Delete image-razor-ktu84p.zip, android-info.txt, cache.img, recovery.img (this is stock recovery, you want TWRP).

Now you have boot.img, bootloader-flo-flo-04.02.img, system.img.

Remember the ADB & Fastboot zip you downloaded from my signature? Extract it to the directory with bootloader-flo-flo-04.02.img, boot.img, system.img. All 4 files. This directory now contains 7 files.

Back out of the razor-ktu84p folder. Just one step back. Now, hold shift the right-click the razor-ktu84p folder. Select Open command window here.

Reboot your device to bootloader mode. Do so by shutting it down. Then while the power is off, hold volume down and press the power button. Release these buttons when you see the big green Android.

In your command window, type the command: fastboot devices

Your device with it's serial number should show up on the list. If it does not there is a problem and you need to stop here.

If the device shows up, let's update it.

fastboot flash bootloader bootloader-flo-flo-04.02.img
<wait for it to finish>
fastboot reboot-bootloader
<wait for it to reboot>
fastboot flash system system.img
<wait for it to finish>
fastboot flash boot boot.img
<wait for it to finish>
fasboot reboot-bootloader

Done with fastboot.

At this point, enter recovery (TWRP) and wipe cache and Dalvik under advanced wipe.

Remember the SuperSU you downloaded earlier and put on your device for later? Flash that now.

Reboot, all done. Most of this is just juggling files around. If you have any questions ask.
Last edited by Aerowinder; 22nd June 2014 at 07:35 PM.
The Following 2 Users Say Thank You to Aerowinder For This Useful Post: [ View ]
22nd June 2014, 07:43 PM   |  #13  
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You are wonderful aerowinder. This is just what I needed to go ahead. Thank you so much.

About your signature, it doesn't show the links when viewed in my Tapatalk version, but I went to the Web view and got it from there. (just FYI if others ask about your links).
23rd June 2014, 10:16 PM   |  #14  
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is it possible to just flash the system img in fastboot? It's still the same bootloader, not updated? Could I just flash the whole zip by sideloading in adb and TWRP? Just a lottle confused. Thanks!
23rd June 2014, 10:28 PM   |  #15  
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Quote:
Originally Posted by droider137

is it possible to just flash the system img in fastboot? It's still the same bootloader, not updated? Could I just flash the whole zip by sideloading in adb and TWRP? Just a lottle confused. Thanks!

If you were already on 4.4.3, all you need to do is fastboot flash system.img, that is correct.

No, you can't flash that firmware zip in recovery.
23rd June 2014, 11:46 PM   |  #16  
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thanks
24th June 2014, 04:47 AM   |  #17  
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Hi Aerowinder
Thanks again for the excellent instructions. Everything went like clockwork until it didn't 😉......

I got to the point where I issued the command fastboot devices which did show the tablet serial number. But my next command to flash the bootloader img gave me the error:
Cannot open 'bootloader-flo-flo-04.02.img
(I had copy pasted the command from your instructions).

The subdirectory below the command window contains that file (one of 7 files)

Sorry. What should I do?

In case you need the info, the device screen showed

Fastboot mode
Product name - flo
Variant - flo 32G
Hw version - rev_e
Bootloader version - flo-04.02
Carrier info = none
Serial number - xxxx
Signing - yes
Secure boot enabled
Lock state - unlocked

Thanks again.
24th June 2014, 11:35 PM   |  #18  
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Aerowinder, you are not only an expert but an excellent teacher. Your instructions above should be a sticky.

I'm all done. Everything is fine.

The problem I had above was a file path problem. Not sure why you told me to open the command window in the parent folder. When I opened it in the folder containing the seven files all your commands worked fine. (Except for your last one where you had a spelling mistake: fasboot instead of fastboot).

Thank you very much.

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