T28 "Initializing....Please Wait"

Hi,

My T28 phone goes into Initializing stage when booting.
I try to upgrade to several firmware, v2.61, v2.70, v2.71 or v2.72, after
successfull upgrade my phone always goes into initializing stage.

I try to reset de configuration by pressing the OK button for 10 seconds or more but nothing happen.

Is it a solution to upload a default configuration file by tftp or a firmware with a default configuration to this phone?

Regards,

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I resolve my problem with this firmware 2.71.0.168.rom
the phone boots correctly