Step #1 Download the factory image of Android 4.4.4 for your smartphone Step #2 Download ADB Tools on your computer. Step #3 Move the factory image or Firmware to ADB Tools folder. Step #4 Make sure you have USB debugging enabled. Step #5 Unlock Your Bootloader Step #6 Turn off your device Step #7 Recovery mode Step #8 Wipe Data Step #10 Install Firmware or factory Image [Downgrade] When you finish your Android Smartphone will restart and wake up with KitKat. Once you have returned to KitKat, surely your smartphone again notify you of the update OTA Lollipop.
Source -http://gluedeyes.com/downgrade-android-lollipop-to-kitkat/ On Wednesday, December 9, 2015 at 4:52:22 AM UTC+5:30, Iker Jamardo wrote: > > Hello, > > I need to downgrade 2 Nexus devices to previous Android versions for > testing purposes. I have both Nexus 7 first and second generation devices > and I have been able to successfully downgrade first generation devices to > Android 4.3 but I am completely unable to do the same with the Nexus 7 2013 > device. > > I am downloading the images and following the instructions at > https://developers.google.com/android/nexus/images?hl=en. I have tried > using the two different Android 4.3 images available for the Nexus 7 2013 > wifi device. Every time I flash de device, there are no errors on the > console (copied below) but when the device reboots, it gets to the Android > device with a warning sign on it screen and does not boot. I am able to > restore to Android 5.1.1 using a different image and following the same > steps. > > Please help! > > Thank you very much in advance! > > Regards, > Iker > > Console output: > > sending 'bootloader' (3911 KB)... > > OKAY [ 0.129s] > > writing 'bootloader'... > > OKAY [ 1.311s] > > finished. total time: 1.440s > > rebooting into bootloader... > > OKAY [ 0.006s] > > finished. total time: 0.006s > > archive does not contain 'boot.sig' > > archive does not contain 'recovery.sig' > > archive does not contain 'system.sig' > > archive does not contain 'vendor.img' > > Creating filesystem with parameters: > > Size: 13342060544 > > Block size: 4096 > > Blocks per group: 32768 > > Inodes per group: 8144 > > Inode size: 256 > > Journal blocks: 32768 > > Label: > > Blocks: 3257339 > > Block groups: 100 > > Reserved block group size: 799 > > Created filesystem with 11/814400 inodes and 91881/3257339 blocks > > Creating filesystem with parameters: > > Size: 587202560 > > Block size: 4096 > > Blocks per group: 32768 > > Inodes per group: 7168 > > Inode size: 256 > > Journal blocks: 2240 > > Label: > > Blocks: 143360 > > Block groups: 5 > > Reserved block group size: 39 > > Created filesystem with 11/35840 inodes and 4616/143360 blocks > > -------------------------------------------- > > Bootloader Version...: FLO-03.15 > > Baseband Version.....: none > > Serial Number........: 0a6a1f64 > > -------------------------------------------- > > checking product... > > OKAY [ 0.003s] > > checking version-bootloader... > > OKAY [ 0.004s] > > sending 'boot' (6880 KB)... > > OKAY [ 0.223s] > > writing 'boot'... > > OKAY [ 0.255s] > > sending 'recovery' (7424 KB)... > > OKAY [ 0.240s] > > writing 'recovery'... > > OKAY [ 0.284s] > > erasing 'system'... > > OKAY [ 0.238s] > > sending 'system' (603447 KB)... > > OKAY [ 19.037s] > > writing 'system'... > > OKAY [ 25.838s] > > erasing 'userdata'... > > OKAY [ 0.466s] > > sending 'userdata' (137198 KB)... > > OKAY [ 4.339s] > > writing 'userdata'... > > OKAY [ 5.479s] > > erasing 'cache'... > > OKAY [ 0.027s] > > sending 'cache' (10984 KB)... > > OKAY [ 0.354s] > > writing 'cache'... > > OKAY [ 0.483s] > > rebooting... > > > finished. total time: 57.288s > > > > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. To post to this group, send email to android-developers@googlegroups.com. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/8fa4a847-365d-4175-a8af-e26495f32fe5%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
