It's impossible to boot the european GB kernels without updating CDT in the same time.
Signature of codegroups (=partitions) are stored in CDT (which is a partition itself).
Motorola Boot Manager checks /boot signature before booting the kernel
CDT has beed updated in the new euro-GB sbf. -> Topic
This new CDT probabily revoked older kernel signatures, and added gb's signature in the same time.
This is the explanation why :
-It's impossible to boot an older kernel after euro-gb sbf update, even using CWM
(there is no signature of this /boot in the new cdt)
-It's impossible to boot euro-gb kernel without updating cdt in the same time
(old cdt does not contain signature for new /boot)
Something worth trying would be to flash both boot and cdt with CWM, preventing e-fuse burning. If someone tries to do so, he should add recovery in the same time for security reasons.
But I don't know if it's technically possible. And it's probabily risky.
Signature of codegroups (=partitions) are stored in CDT (which is a partition itself).
Motorola Boot Manager checks /boot signature before booting the kernel
CDT has beed updated in the new euro-GB sbf. -> Topic
This new CDT probabily revoked older kernel signatures, and added gb's signature in the same time.
This is the explanation why :
-It's impossible to boot an older kernel after euro-gb sbf update, even using CWM
(there is no signature of this /boot in the new cdt)
-It's impossible to boot euro-gb kernel without updating cdt in the same time
(old cdt does not contain signature for new /boot)
Something worth trying would be to flash both boot and cdt with CWM, preventing e-fuse burning. If someone tries to do so, he should add recovery in the same time for security reasons.
But I don't know if it's technically possible. And it's probabily risky.
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