Dears,
in my project I use an i.MX6S and I have used code signing tool version 2.3.1 to sign u-boot.imx and boot.img of my Android 5.1 distribution.
Everything works fine and with my board fuse-locked I'm able to update only signed images.
Now I need to add signature also to Android Recovery image. I realized it similarly to boot.img signature and on board startup with correct keys combination I'm able to enter into a signed Recovery.
The problem is that if I made from Android UI a Factory Reset on reboot Recovery doesn't start and from this point also on startup doesn't start and I need to download again Recovery image with mfgtool to fix the problem.
It seems that factory reset corrupts in some way I don't understand the recovery partition.....any idea?
Thanks
Hello,
When signed image is loaded and run by boot ROM or with help of signed U-boot
all is working. Android (UI) does not support HAB.
Have a great day,
Yuri
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Yuri,
thanks for the reply but maybe I didn't expose correctly the problem.
I know that Android UI does not support HAB but the problem is that
Android UI modifies somthing into recovery.img before a factory reset
corrupting the signature (that I made with CST on recovery.img) and from
that point I'm unable to start Recovery Mode untill I download again
recovery.img from MFGTool
Many thanks
Matteo
Matteo Bissoli
Firmware Designer
Leonardo – Finmeccanica – Società per azioni
Via delle Officine Galileo, 1
50013 – Campi Bisenzio (Fi) - Italia
Tel: +39 055 536(9)245
Email: matteo.bissoli@leonardocompany.com
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