This firmware allows downgrade from overseas firmware (Protocol 2.0) to EU customized firmware (protocol 1.0)

This firmware is the middle step in the downgrading process

Steps:
Baseline protocol 2.0----> this customization firmware----> EU protocol 1.0

For example:
If your current firmware is overseas  V2.2.52_build21126 then first you need to donwgrade to this customization version  V2.2.52_build211218
and  then to the last EU customisation  protocol 1.0 firmware V2.0.8_build210714

Upgrade twice: 
V2.2.52_build21126---->V2.2.52_build211218---->V2.0.8_build210714

Note:
After the second upgrade, device will be reset to default and all data will  be deleted.