Our Nexus 7 (first version) was super slow since it was updated to android version 5.x so I decided to install version 4.4.4 which is the latest version before version 5. I tried to downgrade by the instructions supported by Google but it did not work and I have to call some additional commands. See solution section.
Hopefully the tablet is a little bit faster with version 4.4.4.
Before I started I have to enable USB-Debuging in the Developertools on my device.
Link to the Google factory images: https://developers.google.com/android/images#instructions
Problem
I called the following command as recommended in the instructions:
./flash-all.sh
Result (quite long but it failed):
(bootloader) Bootloader is already unlocked OKAY [ 0.017s] finished. total time: 0.017s erasing 'boot'... OKAY [ 0.041s] finished. total time: 0.041s ******** Did you mean to fastboot format this ext4 partition? erasing 'cache'... OKAY [ 0.100s] finished. total time: 0.100s erasing 'recovery'... OKAY [ 0.034s] finished. total time: 0.034s ******** Did you mean to fastboot format this ext4 partition? erasing 'system'... OKAY [ 0.126s] finished. total time: 0.126s ******** Did you mean to fastboot format this ext4 partition? erasing 'userdata'... OKAY [ 4.993s] finished. total time: 4.993s target didn't report max-download-size sending 'bootloader' (2100 KB)... OKAY [ 0.259s] writing 'bootloader'... OKAY [ 1.228s] finished. total time: 1.487s rebooting into bootloader... OKAY [ 0.024s] finished. total time: 0.093s target didn't report max-download-size sending 'radio' (16384 KB)... OKAY [ 2.003s] writing 'radio'... FAILED (remote: (BadParameter)) finished. total time: 2.024s rebooting into bootloader... OKAY [ 0.024s] finished. total time: 0.075s target didn't report max-download-size archive does not contain 'boot.sig' archive does not contain 'recovery.sig' archive does not contain 'system.sig' archive does not contain 'vendor.img' wiping userdata... Creating filesystem with parameters: Size: 30080499712 Block size: 4096 Blocks per group: 32768 Inodes per group: 8160 Inode size: 256 Journal blocks: 32768 Label: Blocks: 7343872 Block groups: 225 Reserved block group size: 1024 Created filesystem with 11/1836000 inodes and 159268/7343872 blocks wiping cache... Creating filesystem with parameters: Size: 464519168 Block size: 4096 Blocks per group: 32768 Inodes per group: 7088 Inode size: 256 Journal blocks: 1772 Label: Blocks: 113408 Block groups: 4 Reserved block group size: 31 Created filesystem with 11/28352 inodes and 3654/113408 blocks -------------------------------------------- Bootloader Version...: 4.23 Baseband Version.....: N/A Serial Number........: 015d4a8224542009 -------------------------------------------- checking product... OKAY [ 0.030s] checking version-bootloader... OKAY [ 0.021s] checking version-baseband... FAILED Device version-baseband is 'N/A'. Update requires '1231_0.18.0_0409'. finished. total time: 0.180s
Solution
This first command failed as you can see above. After this i unziped the following file image-nakasig-ktu84p.zip which contains the four files boot.img, system.img, recovery.img and userdata.img. Which have to be flashed seperatly:
fastboot flash boot boot.img fastboot flash system system.img fastboot flash recovery recovery.img fastboot flash userdata userdata.img
After I called these commands I restarted the Device and it worked.
Here is a description how to disable the update notifications if you use a old android version:
Source of the featured image: https://de.wikipedia.org/wiki/Android_%28Betriebssystem%29#/media/File:Android_logo_%282014%29.svg
Thank you, this just worked for me!
You are welcome 🙂
Thank you for your response.
I was getting a different error message:
FAILED (remote: ‘(‘)
Your instructions worked for me, though, and I’ve got a response tablet again. Thanks!
Thank you for the hint with the additional error message.
Haha I am happy that my post helped you – cool Easter Surprise.