Could not verify?? - Sony Xperia M4 Aqua

I have successfully rooted my phone with locked bootloader..I downgraded as said by some senior xda devolopers (from 26.1.b.2.147 E2363 to 26.1.b.1.85 E2333)..BUT NOW OTA UPDATES ARE NOT INSTALLING NOW!!!!! I Want to go to the latest firmware.. Screenshots are attached...Thank you.

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Cant even get rid of this annoying notification

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saitejadsst said:
Cant even get rid of this annoying notification
Click to expand...
Click to collapse
short method http://forum.xda-developers.com/m4-aqua/development/bl-locked-twrp-touch-recovery-bl-locked-t3257430
twrp_prerooted_M4.zip
https://www.dropbox.com/s/z0tgziwx8epdu38/twrp_prerooted_M4.zip?dl=0
This is FW update tool keeping rooted(for example, from 26.1.B.1.85 to 26.1.B.2.147, from 26.1.A.1.112 to 26.1.A.2.167)
Works on TWRP
First, prepare target ftf(lollipop)
Extract kernel.sin and system.sin from ftf
Convert kernel and system by using Flashtool, and get kernel.elf and system.ext4
Add kerel.elf and system.ext4 to twrp_prerooted_M4.zip
Install zip on TWRP
Long process.
do this at your risk.
now that you have root with locked bootloader
download TA Backup (http://forum.xda-developers.com/showthread.php?t=2292598)
and take a backup of your TA partition - keep it in a safe place, do not edit it (this will help you lock the BL again later and this is phone unique, you will need it untill you have this phone)
unlock your bootloader (your risk )
flash the latest firmware FTF
flash recovery.img (http://forum.xda-developers.com/m4-aqua/development/recovery-twrp-touch-recovery-sony-m4-t3229873)
flash supersu 2.46 through recovery (https://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip
reboot phone
Use TA Backup and restore the TA partition.
now you have latest firmware and Root and locked bootloader.
install recovery for Locked Bootloader (http://forum.xda-developers.com/m4-aqua/development/bl-locked-twrp-touch-recovery-bl-locked-t3257430
now you have latest firmware + Recovery + Locked Bootloader.
Note: I am not responsible if your phone bricks or any other issue. answer to all questions can found in the forum.

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since you are rooted you can't get ota updates
use the method described here http://forum.xda-developers.com/m4-aqua/development/bl-locked-twrp-touch-recovery-bl-locked-t3257430
twrp_prerooted_M4.zip
This is FW update tool keeping rooted(for example, from 26.1.B.1.85 to 26.1.B.2.147, from 26.1.A.1.112 to 26.1.A.2.167)
Click to expand...
Click to collapse

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RohitBopnna said:
short method http://forum.xda-developers.com/m4-aqua/development/bl-locked-twrp-touch-recovery-bl-locked-t3257430
twrp_prerooted_M4.zip
https://www.dropbox.com/s/z0tgziwx8epdu38/twrp_prerooted_M4.zip?dl=0
This is FW update tool keeping rooted(for example, from 26.1.B.1.85 to 26.1.B.2.147, from 26.1.A.1.112 to 26.1.A.2.167)
Works on TWRP
First, prepare target ftf(lollipop)
Extract kernel.sin and system.sin from ftf
Convert kernel and system by using Flashtool, and get kernel.elf and system.ext4
Add kerel.elf and system.ext4 to twrp_prerooted_M4.zip
Install zip on TWRP
Long process.
do this at your risk.
now that you have root with locked bootloader
download TA Backup (http://forum.xda-developers.com/showthread.php?t=2292598)
and take a backup of your TA partition - keep it in a safe place, do not edit it (this will help you lock the BL again later and this is phone unique, you will need it untill you have this phone)
unlock your bootloader (your risk )
flash the latest firmware FTF
flash recovery.img (http://forum.xda-developers.com/m4-aqua/development/recovery-twrp-touch-recovery-sony-m4-t3229873)
flash supersu 2.46 through recovery (https://download.chainfire.eu/696/SuperSU/UPDATE-SuperSU-v2.46.zip
reboot phone
Use TA Backup and restore the TA partition.
now you have latest firmware and Root and locked bootloader.
install recovery for Locked Bootloader (http://forum.xda-developers.com/m4-aqua/development/bl-locked-twrp-touch-recovery-bl-locked-t3257430
now you have latest firmware + Recovery + Locked Bootloader.
Note: I am not responsible if your phone bricks or any other issue. answer to all questions can found in the forum.
Click to expand...
Click to collapse
I have downloaded twrp prerooted.zip....now what to do...??how to prepare target ftf lollipop?? where will I find kernel.sin..? I am a beginner please explain process in detail..... Thank you....

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Also..how can i open twrp recovery on my device?? Its not opening....

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saitejadsst said:
Also..how can i open twrp recovery on my device?? Its not opening....
Click to expand...
Click to collapse
After gaining Root, install TWRP Recovery for Locked Bootloader http://forum.xda-developers.com/m4-aqua/development/bl-locked-twrp-touch-recovery-bl-locked-t3257430
download the M4Aqua-lockedTWRP-0.1-installer extract it to \Flashtool\x10flasher_lib folder, connect the Phone USB and run the installer.bat file, grant admin access on phone when you see the popup, this will install TWRP
to Open TWRP on Locked Bootloader, reboot the phone, when you see the Sony Logo, start pressing the Volume Down button, it will take you to TWRP Recovery.

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saitejadsst said:
I have downloaded twrp prerooted.zip....now what to do...??how to prepare target ftf lollipop?? where will I find kernel.sin..? I am a beginner please explain process in detail..... Thank you....
Click to expand...
Click to collapse
1. Make sure you have Winrar installed
2. In the latest flashtool (9.19.10) click on the XF button(screenshot below) this will open XperiFirm
here select M4 Aqua and choose your model number and click on your phone CDA (CDA can be found in the Service Menu - dial *#*#7378423#*#* > select Service Info > select software info > look under Customization version)
now on XperiFirm click on the latest firmware version number on the right (under the PayPal button)
this will open the download option to download the latest firmware, click download and choose where you want to save it.
next after download completes the file that were downloaded have to be converted to FTF.
close XperiFirm, on Flashtool, click Tools > Bundles > FILESET Decrypt.
click on the small three dots and navigate to the folder where the firmware files were downloaded and click ok.
you should see 4 files (all in the format File_xxxxxxx), select each file and click on the arrow to move the files to the Files to Convert Section and click convert.
a new window called Bundler opens, in it you will see a list of files, move them all to the Firmware content side.
double click on right space provided next to Device and double click on M4 Aqua and double click on your phone model number
for Branding type your CDA number and your country, for Version enter the firmware version (e.g. 26.1.A.1.167) and click create
this will create the FTF file and save it in the C:\Users\<your username>\.flashTool\firmwares folder.
open the FTF file with winrar and extact system.sin and kernel.sin files.
again open Flashtool, click Tool > Sin Editor.
browse and select kernel.sin that you extracted, click open and click Extract Data > this will extract kernel.elf file
again browse and select system.sin that you extracted, click open and click Extract Data > this will extract system.ext4 file
now open twrp_prerooted_M4.zip file with winrar, add the kernel.elf and system.ext4 file and save the zip file.
copy this zip file to your phone SDCard
boot to TWRP, click Install, select the zip file and install

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Problem solved!! Thanks a lot!!